89 results on '"Onaran, Abdurrahman"'
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2. Synthesis, characterization, preliminary SAR and molecular docking study of some novel substituted imidazo[2,1-b][1,3,4]thiadiazole derivatives as antifungal agents
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Er, Mustafa, Ergüven, Buğracan, Tahtaci, Hakan, Onaran, Abdurrahman, Karakurt, Tuncay, and Ece, Abdulilah
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- 2017
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3. An integrated approach towards the development of novel antifungal agents containing thiadiazole: synthesis and a combined similarity search, homology modelling, molecular dynamics and molecular docking study
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Er, Mustafa, Abounakhla, Abdulati Miftah, Tahtaci, Hakan, Bawah, Ali Hasin, Çınaroğlu, Süleyman Selim, Onaran, Abdurrahman, and Ece, Abdulilah
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- 2018
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4. Dallı darının (Panicum virgatum L.) Farklı Organik Çözücü Ekstraktlarının Bazı Bitki Patojeni Funguslar Karşı Antifungal Aktiviteleri
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ONARAN, Abdurrahman, YAVUZ, Tamer, and BAYAR, Yusuf
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Ziraat ,Antifungal aktivite ,Bitki ekstraktı ,Bitki patojenleri ,Panicum virgatum ,Öldürücü konsantrasyon ,Antifungal activities ,Plant extract ,Plant pathogens ,Lethal concentration ,Agriculture - Abstract
This study was carried out to determine the antifungal activities of different organic solvent (acetone, ethyl acetate, chloroform and methanol) extracts of switchgrass (Panicum virgatum L.) against the plant pathogens Sclerotinia sclerotiorum (Ss), Alternaria solani (As), Fusarium oxysporum f. sp. radicis-lycopersici (Forl) and Verticillium dahliae (Vd). In the research, Trailblazer (PI 549094) variety of Nebraska origin and 70 SG 081 numbered line (PI 642267) of North Dakota origin of switchgrass were used as plant material. 100 g of P. virgatum plant samples were weighed and put into 1 liter glass jars. Extraction was carried out by adding organic solvents; acetone, ethyl acetate, chloroform and methanol in separate jars, enough to cover the plant parts. Antifungal activities of the extracts were determined by using food poisoning method. In addition, LC10, LC50 and LC90 doses of the extracts of switchgrass PV1cultivar and PV2 line. In general, it was determined that Ss was the most sensitive pathogen to PV1 and PV2 extracts, followed by Vd, Forl and As. As a result of the dose-effect study, the lowest LC value for PV1 was 0.66 mg/mL against Vd with acetone extract. Among different organic extracts of PV2, the lowest LC50 value was determined against Ss as 0.48 mg/ml with methanol extract., Bu çalışma, dallı darının (Panicum virgatum L.) farklı organik çözücü (aseton, etil asetat, kloroform ve methanol ) ekstraktlarının bitki patojeni Sclerotinia sclerotiorum (Ss), Alternaria solani (As), Fusarium oxysporum f. sp. radicis-lycopersici (Forl) ve Verticilium dahliae (Vd) üzerine antifungal aktivitelerini belirlemek amacıyla yürütülmüştür. Araştırmada dallı darının Nebraska orijinli Trailblazer (PI 549094) çeşidi ve Kuzey Dakota orijinli 70 SG 081 numaralı hattı (PI 642267) bitki materyali olarak kullanılmıştır. P. virgatum bitkilerinden 100’er g tartılarak, 1 litrelik cam kavanozlara konulmuştur. Bitki örneklerinin üzerini kapatacak kadar aseton, etil asetat, kloroform ve methanol organik çözücüleri ayrı ayrı kavanozlarda ilave edilerek ekstraksiyon yapılmıştır. Farklı organik çözücüler kullanılarak elde edilen ekstraktların antifungal aktiviteleri gıda zehirlenmesi metodu kullanılarak belirlenmiştir. Çalışmada ayrıca, PV1 çeşit ve PV2 hattan elde edilen ekstraktların doz-etki denemeleri ile LC10, LC50 ve LC 90 etkili dozları hesaplanmıştır. Genel olarak PV1 ve PV2 ekstraktlarına en hassas patojenin Ss olduğu, bunu Vd, Forl ve As’nin izlediği belirlenmiştir. Doz etki sonuçlarına göre PV1’de en düşük LC değeri Vd’ya karşı aseton ekstraktında 0.66 mg/mL olarak belirlenmiştir. PV2’nin farklı organik ekstraktları içerisinde ise en düşük LC50 değeri 0.48 mg/ml olarak methanol ekstraktı ile Ss’a karşı belirlenmiştir.
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- 2022
5. Endemik Serik Armudu (Pyrus serikensis)’nun Yaprak ve Meyve Ekstraktlarının Bazı Bitki Patojeni Funguslara Karşı Biyofungusidal Aktivitesi
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YAVUZ, Aslı, primary, ONARAN, Abdurrahman, additional, and BAYAR, Yusuf, additional
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- 2022
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6. STUDIES ON OLEUROPEIN EXTRACTION AND PURIFICATION, ITS ANTIFUNGAL AND ANTIBACTERIAL ACTIVITY AND MOLECULAR DOCKING SIMULATIONS.
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Onaran, Abdurrahman, Bayar, Yusuf, Karakurt, Tuncay, Bayram, Mustafa, Topuz, Semra, Kaya, Cemal, and Elmastaş, Mahfuz
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In this research, it was aimed to extract, purify the oleuropein compound from olive leaf and to determine its antimicrobial activity against microorganisms that cause diseases in plants. For this purpose, olive leaf crude extract, partially purified oleuropein, and purified oleuropein were obtained from olive leaf. Antimicrobial activity of olive leaf products and commercial oleuropein was investigated on Clavibacter michiganensis subsp. michiganensis and Xanthomonas axonopodis pv. vesicatoria by the 96-well microtiter plate method. It was determined that MIC (Minimum Inhibitory Concentration) values of olive leaf products and commercial oleuropein ranged between 1:1 (50 mg/mL) and 1:16 (3.125 mg/mL) for tested microorganisms. 1-2 g/mL doses were used to determine the antifungal activity of leaf extracts and oleuropein compound. The fungus species most affected by the extracts was Alternia solani, followed by Botrytis cinerea and Rhizoctonia solani, respectively. Finally, molecular docking study of oleuropein molecule on sugar binding protein belonging to the R. solani agglutinin (RSA) organism was conducted using AutoDockvina software. Molecular Dynamics Simulation was performed using the GROMACS program with a CHARMM compatible Force Field to confirm the binding mode for inhibition of the oleuropein molecule. Because of the simulation studies, it is aimed to examine the receptor-drug interactions and drug loading efficiency at the molecular level. Considering the information to be obtained, the interaction of the simulated ligand with the receptor will be understood in depth at the molecular level and will be a guide for researchers working in the experimental field. [ABSTRACT FROM AUTHOR]
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- 2023
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7. Synthesis, structural characterization, biological activity, and theoretical studies of some novel thioether‐bridged 2, 6‐disubstituted imidazothiadiazole analogues
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Tunel, Hasan, primary, Er, Mustafa, additional, Alici, Hakan, additional, Onaran, Abdurrahman, additional, Karakurt, Tuncay, additional, and Tahtaci, Hakan, additional
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- 2021
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8. Antifungal activity of chitosan against soil-borne plant pathogens in cucumber and a molecular docking study
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Onaran, Abdurrahman, primary, Bayar, Yusuf, additional, Karakurt, Tuncay, additional, Tokatlı, Kader, additional, Bayram, Mustafa, additional, and Yanar, Yusuf, additional
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- 2021
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9. Synthesis, Characterization, Antimicrobial Evaluation, and Computational Investigation of Substituted Imidazo[2,1‐b][1,3,4]Thiadiazole Derivatives
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Dagli, Meltem, primary, Er, Mustafa, additional, Karakurt, Tuncay, additional, Onaran, Abdurrahman, additional, Alici, Hakan, additional, and Tahtaci, Hakan, additional
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- 2020
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10. Endüstriyel ölçekte üretilen Nar (Punica granatum L.) ve Maydanoz (Petroselinum crispum) tohumu yağının kimyasal bileşimi, antioksidan ve antifungal özelliklerinin belirlenmesi
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OKAN, Onur Tolga, primary, KILIÇ, Ayben, additional, ONARAN, Abdurrahman, additional, ÖZ, Mehmet, additional, and DENİZ, İlhan, additional
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- 2020
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11. Yeni sentezlenen Ni (II) Kompleks Bileşiklerin sentezi, Spektroskopik ve antibakteriyel özelliklerinin İncelenmesi
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Karakurt, Tuncay, primary, Ağar, Ayşen Alaman, additional, Meral, Seher, additional, and Onaran, Abdurrahman, additional
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- 2020
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12. Vaccinium myrtillus ve Inula viscosa BİTKİ EKSTRAKTLARININ Monilinia fructigena’ya KARŞI KONTAK AKTİVELERİ ÜZERİNE BİR DEĞERLENDİRME
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Bayar, Yusuf, Onaran, Abdurrahman, Gaziosmanpaşa Üniversitesi, and 0-Belirlenecek
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[Anahtar Kelime Yok] - Abstract
Bitki patojenlerinin kontrol edilmesinde kullanılan sentetik kimyasal ilaçların insan ve çevre sağlığı üzerine etkilerinin en alt düzeye indirilebilmesi için bitkisel ekstraktların kullanımı alternatif bir yöntem değerlendirilebilir. Bu çalışmayla; Vaccinium myrtillus (Yaban mersini) ve Inula viscosa (Yapışkan andız otu) bitkilerinin toprak üstü kısımlarından elde edilen methanol ekstraktının Monilinia fructigena (Honey in Whetze) üzerine antifungal aktivitesi in vitro koşullarda araştırılmıştır. Ekstraktların patojene karşı aktiviteleri agar petri yöntemi kullanılarak ile 1,33 mg/ml, 2 mg/ml ve 2,66 mg/ml dozların da belirlenmiştir. Ekstraktların patojenlerin miselyum gelişmeleri (MG) ve miselyum gelişim engellemeleri (MGE) hesaplanmıştır. Monilinia fructigena’nın miselyum gelişim engelleme üzerine I. viscosa ekstraktının 2,66 mg/ml dozda %74,42 V. myrtillus ekstraktının ise %57,92 oranında etkili olduğu belirlenmiştir. V. myrtillus ve I. viscosa bitki methanol ekstraktlarınında Monilinia fructigena’ya karşı in vitro koşullarda miselyum gelişimi üzerine etkili olduğu belirlenmiştir. Monilinia fructigena üzerine I. viscosa ekstraktının V. myrtillus ekstraktına göre daha etkili olduğu belirlenmiştir. Yürütülen çalışma, bitki patojenlerinin kontrolünde bitki ekstraktlarının kullanımının değerlenmesi için katkı sağlayacaktır. The use of herbal extracts can be considered as an alternative method to minimize the effects of synthetic chemical pesticide used in the control of plant pathogens on human and environmental health. This study; Antifungal activity of methanol extract obtained from above ground parts of Vaccinium myrtillus (Blueberry) and Inula viscosa (False yellow head or Strong-Smelling Inula) plants on Monilinia fructigena (Honey in Whetze) was determined in vitro conditions. The pathogen activity of the extracts was determined by using agar petri method at doses of 1.33 mg/ml, 2 mg/ml and 2.66 mg/ml. Mycelial growth (MG) and mycelial growth inhibition (MGE) of pathogens of extracts were calculated. Monilinia fructigena on inhibition the development of mycelium; a dose 2.66 mg/ml dose, 74.42% of I. viscosa extract and 57.92% of I. myrtillus extract was determined to be effective. V. myrtillus and I. viscosa plant methanol extracts against Monilinia fructigena in vitro conditions were determined to be effective on the development of mycelium. Monilinia fructigena on I. viscosa extract was found to be more effective than V. myrtillus extract. The study, will contribute to the evaluation of the use of plant extracts in the control of plant pathogens.
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- 2020
13. BAZI BİTKİ PATOJENİ FUNGUSLARA KARŞI Humulus lupulus L. BİTKİ EKSTRAKTININ ANTİFUNGAL AKTİVİTESİ
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Yılar, Melih, Bayar, Yusuf, Onaran, Abdurrahman, Gaziosmanpaşa Üniversitesi, and 0-Belirlenecek
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[Anahtar Kelime Yok] - Abstract
Bu çalışmada, Tokat ekolojik koşullarda yetişen Humulus lupulus L.(Şerbetçiotu) bitkisinin çiçeklerinden elde edilen methanol ve n-hexan ekstraktlarının Sclerotinia sclerotiorum ve Fusarium oxysporum f. sp. lycopersici (Fol) patojenlerine karşı antifungal aktivitesi in vitro şartlarda araştırılmıştır. Aktivite çalışmalarında, agar diffuzyon yöntemi kullanılmıştır. Methanol ve n-Hexan ekstraktlarının patojenlere karşı, 0.1, 0.5, 1 ve 2 mg/ml dozlarının Miselyum Gelişimi (MG), Miselyum Gelişim Engelleme (MGE) etkinlik düzeyleri belirlenmiş ve letal doz (LD??) hesaplanmıştır. Patojenler üzerine; hexan ekstratı, metanol ekstratına göre daha etkili olduğu bulunmuştur. MG için; Hexan esktraktının 2 mg/ml dozunda Sc ve Fol’e karşı sırasıyla %90 ile %60 oranında etkili olduğu, yine MG için; methanol ekstraktında 2 mg/ml dozunda Sc ve Fol’e karşı sırasıyla %84 ile %83 oranında engellediği belirlenmiştir. LD?? hexan ve methanol ekstratları için Sc için; sırasıyla 0.021 ile 0.193 mg/ml, Fol için; sırasıyla 0.616 ile 0.273 mg/ml olarak hesaplanmıştır. Çalışma sonucunda; H. lupulus çiçeklerinden elde edilen Methanol ve n-Hexan ekstraktlarının in vitro şartlarda Sclerotinia sclerotiorum ve Fusarium oxysporum f. sp. lycopersici üzerine fungusidal aktivitelerinin olduğu belirlenmiştir. In this study, methanol and n-hexan extracts obtained from flowers of Humulus lupulus L. (Hops) grown in Tokat ecological conditions were investigated by Sclerotinia sclerotiorum (Ss) and Fusarium oxysporum f. sp. lycopersici (Fol) pathogens was investigated antifungal activity against in vitro condition. Agar diffusion method was used for activity studies. Mycelial Growth (MG), Mycelium Growth Inhibition (MGE) activity levels of 0.1, 0.5, 1 and 2 mg/ml doses of methanol and n-hexan extracts against pathogens were determined and lethal dose (LD??) was calculated. Generally on pathogens; n-hexane extract was found to be more effective than methanol extract. For MG; n-hexan extract was effective at a dose of 2 mg/ml against Sc and Fol to 90% and 60% respectively. It was determined that it inhibited Sc and Fol at a dose of 2 mg/ml in methanol extract to 84% and 83%, respectively. LD?? was calculated for Sc for n-hexane and methanol extracts; 0.021 to 0.193 mg/ml, respectively, for Fol; 0.616 to 0.273 mg/ml, respectively. In the results of research; methanol and n-Hexan extracts obtained from H. lupulus flowers in vitro conditions Sclerotinia sclerotiorum and Fusarium oxysporum f. sp. lycopersici on fungicidal activities.
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- 2020
14. Chemical composition and allelopathic effect of Origanum onites L. essential oil
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YILAR, Melih, BAYAR, Yusuf, and ONARAN, Abdurrahman
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Fen ,allelopathic effect,Origanum onites,essential oil ,allelopatik etki,Origanum onites,uçucu yağ ,Science - Abstract
Bu çalışmada, Origanumonites L. bitkisinin toprak üstü (sürgün+yaprak+çiçek)aksamından elde edilen uçucu yağın kimyasal bileşenleri ve farklı bitkilerinçimlenme ve fide gelişimine olan allelopatik etkileri araştırılmıştır. Buamaçla Mersin ilinden toplanan O.onites bitkisinden hidro-distilasyon yöntemi kullanılarak uçucu yağelde edilmiştir. GC/MS analizi sonucunda O.onites uçucu yağında carvacrol (%59.87), γ-terpinene (%17.08) ve β-cymene (%8.83) temel bileşenlerolmak üzere 24 bileşen belirlenmiştir. Allelopatik etki 9 cm çaplı Petri kaplarındayürütülmüştür. Petri kaplarına 2 kat halinde kurutma kağıdı yerleştirilmiş ve Amaranthusretroflexus L., Lepidium sativum L., Triticum aestivum L. tohumları homojen olarak dağıtılmıştır.Kurutma kağıtları distile su kullanılarak iyice nemlendirilmiştir. Her bir Petrikabının kapağının merkezine zamkla yapıştırılmış kurutma kağıdına uçucu yağlarfarklı konsantrasyonlarda (0, 0.5, 1, 1.5, 5, 15 μl/Petri) bir mikropipetyardımı ile damlatılarak, Petri kapları örtülerek Parafilm ile sıkıcasarılmıştır. Petri kapları 12 saat aydınlık-12 saat karanlık ve ortalama 24±1 oCkoşullarda 1-4 hafta boyunca inkübasyona bırakılmıştır. Sürenin sonundaçimlenme oranı, kök ve sürgün boyları belirlenmiştir. O. onites uçucu yağı A.retroflexus L., L.sativum L., T. aestivum L. bitkilerinin tohumçimlenmesi ile kök ve sürgün gelişimini 15 μl/Petri dozda tamamenengellemiştir. Uçucu yağa karşı A. retroflexus L.’un daha hassas olduğu tespit edilmiştir. Elde edilen sonuçlara göre,O. onites uçucu yağının yüksek seviyede L.sativum L., T. aestivum L., A. retroflexus L. tohumçimlenmesi ve fide gelişimleri üzerine allelopatik etki gösterdiği ve A.retroflexus L. kontrolünde kullanılabilir potansiyele sahip olduğubelirlenmiştir., In this study, chemical composition and allelopathic effect of essential oil obtained from ground parts (shoots+leaves+flowers) of Origanum onites L. plant on seed germination and seedling growth of different plant species were investigated. Essential oil was obtained with the use of the hydro-distillation method from O. onites plant collected from Mersin province. It was identified 24 different compounds by GC/MS analysis in O. onites essential oil, while the main compounds were determined as carvacrol (59.87%), γ-terpinene (17.08%) and β-cymene (8.83%). The allelopathic effect of the essential oil, two layers of filter paper were placed bottom of 9 cm diameter disposable Petri dishes then seeds of Amaranthus retroflexus L., Triticum aestivum L. and Lepidium sativum L. were homogeneously distributed on filter paper. Filter papers were thoroughly moistened using distilled water. The filter paper was glued to the center of the lid of each Petri dish. The different concentrations (0, 0.5, 1, 1.5, 5, 15 μl/Petri dishes) of the essential oil were applied to the filter paper pieces. Then lid of each Petri dish was closed and sealed with Parafilm. Petri dishes were incubation at 12 h dark-12 h light periods with an average temperature of 24±1 oC for 1-4 weeks. At the end of incubation period, germination rates, root and shoot lengths of the test plants were determined. The 15 μl/Petri concentration of O. onites essential oil were completely inhibited seed germination, root and shoot growth of A. retroflexus L., T. aestivum L. and L. sativum L. plants. A. retroflexus L. was found to be more sensitive to essential oil. The results show that O. onites essential oil has potential to be used in the control of A. retroflexus L., which has high allelopathic effect on seed germination and seedling development of L. sativum L., T. aestivum L., A. retroflexus L.
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- 2019
15. Chemical Composition and Antifungal Effects of Vitex agnus-castus L. and Myrtus communis L. Plants
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Yilar, Melih, Bayan, Yusuf, Onaran, Abdurrahman, and Kırşehir Ahi Evran Üniversitesi, Ziraat Fakültesi, Bitki Koruma Bölümü
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chaste tree ,Agriculture (General) ,Forestry ,common myrtle ,SD1-669.5 ,plant diseases ,essential oil ,S1-972 - Abstract
WOS: 000390832800020 The purpose of this study was to assess the effectiveness of essential plant oils from Vitex agnus-cactus L. (VAC) and Myrtus communzs L. against the plant pathogens, Fusarium oxysporum f. sp. radicis-lycopersici (Sacc.) W.C. Synder & H.N. Hans, Rhizoctonia solani J.G. Kuhn., Sderotznia sclerodorum (Lib.) de Bary and Verticillium dahliae Kleb., and to determine the chemical composition of the compounds in these essential oils. GC/MS analysis was identified 25 different compounds in VAC essential oil, while the main compounds were determined as Eucalyptol (17.75%), beta-Caryophyllene (13.21%) and Spathulenol (10.41%). On the other hand, the essential oil of M. communis, consisted of 16 different compounds which were Eucalyptol (49.15%), Myrtenol (19.49%) and alpha-Pinene (8.38%) being its main compounds. An assessment of antifungal activity was performed under in vitro conditions. Plant pathogens were inoculated onto Petri dishes (60 mm) containing PDA medium (10 mL/Petri(-1)), and plant essential oils were applied at concentrations of 0.5, 1, 1.5, 2, 5 and 10 (mu L/Petri(-1)) into the 5 mm diameter wells opened on the Petri dish surface. After that, the Petri dishes incubated at 22 +/- 2 degrees C. The results of this study, the essential oil of M communis, at a dose of 10 mu L/ Petri, inhibited the 100% mycelium growth of V. dahliae, S. sderotiorum and R. solani. The highest dose of VAC essential oil was also 100% inhibited V. dahliae and S. sderotiorum. The LC50 and LC90 values of M communzs and VAC essential oil calculated for V. dahliae, FORL, S. sderodorum and R. solani. This plant extracts were shown by in vitro conditions to be potential antifungal agents.
- Published
- 2016
16. Origanum onites L. uçucu yağının kimyasal bileşenleri ve allelopatik etkisi
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YILAR, Melih, primary, BAYAR, Yusuf, additional, and ONARAN, Abdurrahman, additional
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- 2019
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17. Novel Substituted Imidazo[2,1‐ b ][1,3,4]Thiadiazole Derivatives: Synthesis, Characterization, Molecular Docking Study, and Investigation of Their In Vitro Antifungal Activities
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Er, Mustafa, primary, Tahtaci, Hakan, additional, Karakurt, Tuncay, additional, and Onaran, Abdurrahman, additional
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- 2019
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18. Synthesis, structural characterization, biological activity, and theoretical studies of some novel thioether‐bridged 2,6‐disubstituted imidazothiadiazole analogues.
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Tunel, Hasan, Er, Mustafa, Alici, Hakan, Onaran, Abdurrahman, Karakurt, Tuncay, and Tahtaci, Hakan
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THIADIAZOLES ,ELEMENTAL analysis ,MASS spectrometry ,PHYTOPATHOGENIC fungi ,PATHOGENIC fungi ,PLANT-fungus relationships - Abstract
In this study, thioether‐bridged imidazo[2,1‐b][1,3,4]thiadiazole derivatives that contained both imidazole and 1,3,4‐thiadiazole (compounds 7a‐7i and 8a‐8i) were synthesized from the reactions of 2‐amino‐1,3,4‐thiadiazole with phenacyl bromide (6a‐6i) (at yields of 59% to 74%). The structure of the synthesized compounds was characterized using 1H NMR, 13C NMR, Fourier‐transform infrared spectroscopy, elemental analysis, mass spectroscopy, and X‐ray diffraction analysis. Mycelial growth, mycelial growth inhibition, minimum inhibitory concentration, minimum fungicidal concentration, and lethal dose values against various plant pathogenic fungi were determined for all of the target compounds synthesized in the study. The test results showed that most of the compounds had moderate to good antifungal activity. In addition, the absorption, distribution, metabolism, excretion (ADME) parameters of the compounds were calculated, and it was observed that all of the compounds met the drug‐likeness rules in general. Finally, using docking simulations, it was found that compounds 7h, 7i, 8h, and 8i showed high affinity to PDB ID:5TZ1, which is an CYP51 antifungal target structure. [ABSTRACT FROM AUTHOR]
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- 2021
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19. MOESM1 of An integrated approach towards the development of novel antifungal agents containing thiadiazole: synthesis and a combined similarity search, homology modelling, molecular dynamics and molecular docking study
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Er, Mustafa, Abdulati Abounakhla, Tahtaci, Hakan, Bawah, Ali, Çınaroğlu, Süleyman, Onaran, Abdurrahman, and Ece, Abdulilah
- Abstract
Additional file 1. Experimental details and NMR spectra. Tables S1–S3. X-ray data of compound 7n. Figure S1. The crystal structure of compound 7n. Figure S2. Packaging of the compound 7n over b-axis. Figure S3. The Radius of gyration (Rg) during 50 ns of MD simulation of STE/STE20/YSK protein kinase homology model. Figures S4–S63. 1H and 13C NMR spectra of all the compounds.
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- 2018
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20. Determination of the Essential Oil Composition and the Antifungal Activities of Bilberry (Vaccinium myrtillus L.) and Bay Laurel (Laurus nobilis L.)
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Bayar, Yusuf, Onaran, Abdurrahman, Yilar, Melih, Gul, Fatih, and Kırşehir Ahi Evran Üniversitesi, Ziraat Fakültesi, Bitki Koruma Bölümü
- Subjects
V.myrtillus ,L.nobilis ,Antifungal ,essential oil - Abstract
WOS: 000432900400024 This study aimed to determine the composition andthe antifungal activity of the essential oils of Vaccinium myrtillus and Laurus nobilis plants. In the study, 22 components were identified in the essential oil of V myrtillus, which represented 100 % of the total essential oils. Accordingly, 1,8-cineole (41.07 %), beta-Linalool (12.72 %), alpha-Pinene (12.17 %) and Myrtenol (6.48%) were determined as the main components of the essential oil of V. myrtillus. The essential oil of L. nobilis consisted of 39 compounds and 1,8-cineole (50.68 %), alpha-Terpinyl acetate (14.19 %), 4-Terpinenol (4.07 %) and alpha-Terpineol (2.90 %) were determined as the main components, which represented 100 %of the total essential oils. In the trials, doses of 0 (control) 1, 2, 4, 8 and 10 mu L/petri dish were used. V myrtillus essential oil inhibited mycelial growth in Sclerotinia sclerotiorum (Lib.), Alternaria solani, Fusarium oxysporum f. sp. radicis-lycopersici (Sacc.) W.C. Synder & H.N. Hans (FORL) and and Verticillium dahliae Kleb by 61.38 %, 100 %, 80.36 % and 57.91 % respectively. Bay laurel essential oil at 10 mu L/petri dish dose inhibited the mycelial growth of A. solani, S. sclerotiorum, (FORL) by 100 %, whereas it inhibited the mycelial growth in V dahliae by 61.23 %. Study results showed that V myrtillus and L. nobilis essential oils have strong antifungal activities.
- Published
- 2018
21. Determination Of Antifungal Activity and Phenolic Compounds Of Endemic Muscari aucheri (Boiss.) Baker Extract
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Onaran, Abdurrahman, Bayram, Mustafa, Gaziosmanpaşa Üniversitesi, and 0-Belirlenecek
- Subjects
Ziraat Mühendisliği - Abstract
Antifungal activity and phenolic compounds of the methanol extract (flower + peduncle) derived from Muscari aucheri (Boiss.) Baker that grows endemically in Turkey were identified against five different plant pathogens [Fusarium oxysporum f. sp. cucumerinum, Alternaria solani, Verticillium dahliane, Rhizoctonia solani, Botrytis cinerea]. Methanol extract of M. aucheri was obtained from the aerial parts (flower + peduncle). Antifungal activity studies were performed by examining the obtained extract against plant pathogens at the final concentrations of 2.5, 5, 10 and 20 mg/ml doses using the agar plate method. Mycelial growth inhibition and LD50 doses of the extract to the pathoges were determined. Significant levels of antifungal activities were observed at all the doses used in the extracts. At the same time, 100% inhibition were observed at 10 and 20 mg/mL doses used against the pathogens. Individual phenolic compound rutin (693,2 ug/g) was found in the extract at its highest level. Total phenolic compound and monomeric anthocyanin amounts were determined. Results from these findings suggest that phenolic compounds in natural antifungal agents may offer positive results in the control of plant pathogens. Türkiye’de endemik olarak yetişen Muscari aucheri (Boiss.) Baker bitkisinden elde edilen methanol ekstraktının (Çiçek + çiçek sapı) beş farklı bitki patojenine [Fusarium oxysporum f. sp. cucumerinum, Alternaria solani, Verticillium dahliae, Rhizoctonia solani, Botrytis cinerea] karşı antifungal aktivitesi ve bazı bireysel fenolik bileşikleri belirlenmiştir. M. aucheri’nin methanol ekstraktı toprak üstü aksamından elde edilmiştir. Elde edilen ekstraktın son konsantrasyonu 2.5, 5, 10 ve 20 mg/mL dozlarında agar petri yöntemi kullanılarak bitki patojenlerine karşı antifungal aktivite çalışmaları yürütülmüştür. Ekstraktın patojenlere olan miselyum gelişim engellemeleri ve LD50 dozları belirlenmiştir. Kullanılan bütün dozlar ve ekstraktda önemli düzeyde antifungal etkiler gözlenmiştir. Patojenlere karşı kullanılan 10 ve 20 mg/mL dozunda %100 engellemeler gözlenmiştir. Ekstraktda en yüksek bireysel fenolik bileşik rutin (693,2 µg/g) olarak bulunmuştur. Toplam fenolik bileşik ve monomerik antosiyanin miktarlarları belirlenmiştir. Bu sonuçlara göre, doğal antifungal maddelerin içerdiği fenolik bileşiklerin bitki patojenlerinin kontrolünde ümitvar sonuçlar ortaya çıkaracağı belirlenmiştir.
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- 2018
22. Control of Brown Rot Disease of Quince Fruits (Monilinia fructigena Honey in Whetzel) by Ethanolic Propolis Extract Treatments
- Author
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Özyiğit, Çiğdem, Yanar, Yusuf, Yanar, Dürdane, Onaran, Abdurrahman, Gaziosmanpaşa Üniversitesi, and 0-Belirlenecek
- Subjects
Fen ,Science ,Ayva kahverengi çürüklük,Monilinia fructigena,propolis,ekstrakt ,Biyoloji - Abstract
Bu araştırma Erzincan’da M9 anacı üzerine aşılı 12 elma çeşidinin (Vista Bella, Williams Pride, Summer Red, Propolis, insanlar tarafından bin yıldır antimikrobiyal ve farmasötik özellikleri için kullanılmaktadır. Bununla birlikte, tarımsal alanda antimikrobial ajan olarak kullanımı son yıllarda ele alınmaya başlamıştır. Bu çalışmada Tokat ve Ankara’dan getirilen propolisin etanolik ekstraktının (PEE) ayva kahverengi çürüklük hastalığı (Monilinia fructigena Honey in Whetzel)'nın kontrolünde kullanılabilirliği araştırılmıştır. PEE'nin antifungal aktivitesi, propolis ekstraktı içeren Patates Dekstroz Agar ortamı ve meyve kaplama yöntemleri ile test edilmiştir. Çalışmada PEE üç farklı konsantrasyonu (%1, 3 ve 5) kullanılmıştır. Elde edilen sonuçlar doğrultusunda PEE konsantrasyonu artıkça etkinliğinde paralel olarak artığı görülmüştür. Tokat ve Ankara PEE %3 konsantrasyonuda M. fructigena’nın miselyum gelişimini %100 oranında engellemiştir. Tokat ve Ankara PEE %1 konsantrasyonuda patojenlerin gelişimini sırasıyla %84.2 ve %85.6 arasında değişen oranlarda engellemiştir. Ankara ve Tokat PEE, %5 konsantrasyonda patojenlerin gelişimini tamamen (%100) durdurmuştur. Benzer sonuçlar, in vivo çalışmada da elde edilmiştir. Her iki PEE %5 konsantrasyonunda, meyve enfeksiyonları tamamen engellenmiştir. Elde edilen sonuçlar, propolisin etanolik ekstraktlarının (PEE) %3 ve %5 lik konsantrasyonlarının, hasat sonrası ayva kahverengi çürüklük hastalığı (Monilinia fructigena)'nın kontrolü için ayvada yenilebilir kaplama olarak kullanılabileceğini göstermiştir Propolis has been used by man for millennia due to its antimicrobial and pharmaceutical properties. However, its use as an agricultural antimicrobial agent has only recently been assessed. This study assessed the use of an ethanolic extract of Tokat and Ankara propolis (PEE) for the control of quince fruit Brown rot disease. Antifungal activity of EEP was evaluated by amended Potato Dextrose Agar medium and fruit coating methods. Propolis Ethanolic Extract (PEE) in three concentrations 1, 3 and 5% were used. Based on the results of the study, increase in extract concentration resulted in increase of the extract efficacy. Tokat, and Ankara propolis ethanol extract at 3% concentration inhibited the growths of Monilinia fructigena at the rate of 100%. Tokat, and Ankara propolis ethanol extract at 1% concentration inhibited the growths of the pathogens between 84.2 and 85.6%. Ankara and Tokat propolis extracts at 5% concentration inhibited the growths of the pathogens at highest proportion (100%). Similar results were obtained in invivo study. At the 5% extract concentrations of both propolis extracts, fruit infections were inhibited completely. Present results indicated that propolis extracts (3% and 5% concentrations) could be used as an edible coating of quince fruits to eliminate postharvest brown rot disease.
- Published
- 2017
23. Morina persica L. Ekstraktının Ditylenchus dipsaci ve Bazı Bitki Patojenlerine Karşı Biyolojik Mücadelede Kullanım Potensiyelinin Belirlenmesi
- Author
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Saglam, Didem and Onaran, Abdurrahman
- Subjects
Morina persica,Alternaria solani,Verticillium dahliae,Ditylenchus dipsaci,Fusarium oxysporum f.sp.lycopersici ,Agricultural, Engineering ,Mühendislik, Ziraat ,Morina persica,Alternaria solani,Fusarium oxysporum f. sp. lycopersici,Verticillium dahliae,Ditylenchus dipsaci - Abstract
In this study antifungal and nematicidal effect ofmethanol extracts of Morina persica L. was examined. In antifungalactivities, plant extract was evaluated against Alternaria solani, Fusarium oxysporumf. sp. lycopersici (FOL) and Verticillium dahliae.The experiment was carried out by theagar plate methods at a concentration of 0.625,1.25, 2.5, 5, 10 and 20 mg mL. All concentration of M.persica plant extracts was showed a different level of antifungal activities against test fungi dependon concentrations. Nematicidal activity was evaluated against stem nematode Ditylenchus dipsaci(Kühn, 1857) under in vitro condition. Five concentrations (31.25, 62.5, 125,250 and 500 ppm) of M. persica plant extracts were tested. Thenematodes exposed 24, 48, 72 and 96 hours in plant extracts and kept at 25 °C. M. persicaplant extracts were found highlyeffective on D. dipsaci. The plant extracts of Morina persica was first timedetermined the antifungal and nematicidal activities in this study, and haspotential effect as a bio pesticideagainst plant pathogens and plant parasitic nematodes, Bu çalışmada, Morina persica L. metanol ekstraktının antifungal ve nematisidal etkinliği araştırılmıştır. Antifungal etkinliğini belirlemede bitki ekstraktı Alternaria solani, Fusarium oxysporum f. sp. lycopersici (FOL) ve Verticillium dahliae patojenlerine karşı denenmiştir. Deneme, M. persica ekstraktının 0.625, 1.25, 2.5, 5, 10 ve 20 mg mL’lik konsantrasyonlarında agar petri yöntemi ile gerçekleştirilmiştir. M. persica ekstraktının tüm konsantrasyonları doza bağlı olarak farklı seviyerlerde antifungal etkinlik göstermiştir.Nematisidal aktivitesi Ditylenchus dipsaci (Kühn, 1857)’ye karşı in vitro koşullarda gerçekleştirilmiştir. M. persica ekstraktının 5 farklı konsantrasyonu (31.25, 62.5, 125, 250 ve 500 ppm) D.dipsaci ‘ye karşı denenmiştir. Nematodlar, 25 °C’de 24, 48, 72 ve 96 saat bitki ekstraktına maruz bırakılmıştır. M. persica ekstraktının D.dipsaci’ye karşı oldukça etkili olduğu tespit edilmiştir. Morina persica L. ekstraktı’nın antifungal ve nematisidal etkinliği ilk kez bu çalışma ile belirlenmiş ve ele alınan nematod ve patojenlere karşı biyopestisit olarak potansiyel bir etkiye sahip olduğu saptanmıştır.
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- 2017
24. Determination Of Antifungal Activity and Phenolic Compounds Of Endemic Muscari aucheri (Boiss.) Baker Extract
- Author
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ONARAN, Abdurrahman and BAŞARAN, Mustafa
- Subjects
Fen ,Science ,Muscari aucheri,phenolic compounds,antifungal activity,plant pathogens - Abstract
Antifungal activity and phenolic compounds of the methanol extract (flower + peduncle) derived from Muscari aucheri (Boiss.) Baker that grows endemically in Turkey were identified against five different plant pathogens [Fusarium oxysporum f. sp. cucumerinum, Alternaria solani, Verticillium dahliane, Rhizoctonia solani, Botrytis cinerea]. Methanol extract of M. aucheri was obtained from the aerial parts (flower + peduncle). Antifungal activity studies were performed by examining the obtained extract against plant pathogens at the final concentrations of 2.5, 5, 10 and 20 mg/ml doses using the agar plate method. Mycelial growth inhibition and LD50 doses of the extract to the pathoges were determined. Significant levels of antifungal activities were observed at all the doses used in the extracts. At the same time, 100% inhibition were observed at 10 and 20 mg/mL doses used against the pathogens. Individual phenolic compound rutin (693,2 ug/g) was found in the extract at its highest level. Total phenolic compound and monomeric anthocyanin amounts were determined. Results from these findings suggest that phenolic compounds in natural antifungal agents may offer positive results in the control of plant pathogens.
- Published
- 2017
25. Parazit bitkilerden (Orobanche ramosa L. Cuscuta campestris Yunck. ve Viscum album L.) elde edilen ekstratların bazı bitki patojeni funguslara karşı antifungal etkileri
- Author
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ŞİN, Bahadır, KADIOĞLU, İzzet, and ONARAN, Abdurrahman
- Subjects
Plant pathogenic fungi,Parasitic plant extracts,Antifungal activity ,food and beverages ,Bitki patojeni funguslar,Parazitik bitkiler,Antifungal aktivite - Abstract
Günümüzde kullanılan pestisitlerin olumsuz etkileri nedeniyle yeni alternatif kontrol yöntemleri bulmak önem kazanmıştır. Bu çalışmada, Alternaria solani, Monilinia fructigena, Fusarium oxysporum f. sp. radicis-lycopersici (FORL)'ye karşı üç parazit bitki türü olan Orabanche ramosa, Viscum album ve Cuscuta campestris'in antifungal aktiviteleri araştırılmıştır. Antifungal aktivite çalışmalarında parazit bitkilerden elde edilmiş methanol ekstraktları kullanılmıştır. Bu çalışmalar agar petri yöntemi kullanılarak belirlenmiştir. Bitki patojenlerine karşı ekstraktların 2, 5, 10 ve 20 mg ml-1 dozları kullanılmıştır. Denemeler 4 tekerrürlü olarak ve 2 kez tekrarlanmıştır. Elde edilen sonuçların yüzde miselyum gelişim engelleme (MGE) oranları ve letal dozları belirlenmiştir. Bu sonuçlara göre, her bitki ekstraktı belirgin bir şekilde antifungal aktivite göstermiştir. Doz miktarı arttıkça aktivite oranları da artış göstermiştir. Antifungal aktivite çalışmalarının sonuçlarına göre, ekstraktların 20 mg ml-1 dozlarındaki en yüksek etkiler, C. campestris’de A. solani'ye karşı %90, V. album’da M. fructigena'ya karşı %78, C. campestris'de FORL’ye karşı %76 oranlarında bulunmuştur. LD90 değerleri bitki patojenlerine karşı, O. ramosa'da 230.6-58.4, V. album’da 128.6-51.3 ve C. campestris'de ise 43.5-38.9 mg ml-1 arasında hesaplanmıştır. Ayrıca, parazit bitkilerden elde edilen metanol ekstratlarının ilk kez bu çalışmayla bitki patojenlerinin kontrolünde antifungal aktivite çalışmaları araştırılmıştır. Sonuç olarak, ortamdaki antifungal maddelerin etkinliklerinin tanımlanması sonucunda, daha ucuz ve çevre dostu alternatif maddelerin geliştirilmesi kolaylaşacaktır, Because of the adverse effects of pesticides used today, it has become important to find new alternative control methods. In this study, antifungal activities of three parasitic plants species, Orabanche ramosa, Viscum album and Cuscuta campestris, were investigated against Alternaria solani, Monilinia fructigena, Fusarium oxysporum f. sp. radicis-lycopersici (FORL) plant pathogens. Methanol extracts derived from parasitic plants were used in antifungal activity studies. These studies were conducted with the agar plate method. Extract doses of 2, 5, 10 and 20 mg ml-1 used against plant pathogens. Experiments were set up four replicates and repeats 2 times. Percentage of mycelial growth inhibition (MGI) and lethal doses were determined according to results. According to these results, each plant extract showed noticeable antifungal activity. As the amount of the dose increased, the activity rates increased. As a result of antifungal activity studies, the highest effects were observed at 20 mg ml-1doses of plant extracts against A. solani, with rate of 90% in C. campestris, 78% in V. album against M. fructigena, and 76% against FORL in C. campestris. LD90 values were calculated as 230.6 to 58.4 in O. ramosa, 128.6 to 51.3 in V. album, and 43.5 to 38.9 mg ml-1 in C. campestris against plant pathogens. In addition, with the data collected from this study, the utilization of methanol extracts obtained from parasitic plants in control of plant pathogens were investigated for the first time. As a result, the identification of the activities of antifungal substances in the environment will facilitate to the discovery of cheaper and environmentally friendly alternative substances
- Published
- 2017
26. Determination of chemical composition, antioxidant and antifungal properties of pomegranate (Punica granatum L.) and Parsley (Petroselinum crispum) seed oil produced in industrial scale.
- Author
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OKAN, Onur Tolga, KILIÇ PEKGÖZLÜ, Ayben, ONARAN, Abdurrahman, ÖZ, Mehmet, and DENİZ, İlhan
- Subjects
POMEGRANATE ,ANTIFUNGAL agents ,ESSENTIAL oils ,ANTIOXIDANTS ,PARSLEY - Abstract
Copyright of Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi is the property of Artvin Coruh University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
27. Endemik Anadolu Sığla Ağacı (Liquidambar orientalis Mill. ) Bitki Ekstraktlarının Bazı Bitki Patojeni Funguslara Karşı Antifungal Etkilerinin Belirlenmesi
- Author
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onaran, Abdurrahman, primary
- Published
- 2018
- Full Text
- View/download PDF
28. Bazı Bitki Patojeni Funguslar ve Cuscuta campestris Yunck.’a Karşı Trachystemon orientalis (L.) G. Don’un Antifungal ve Herbisidal Aktivitesi
- Author
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ONARAN, Abdurrahman, primary and YILAR, Melih, additional
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- 2018
- Full Text
- View/download PDF
29. Determination of the Essential Oil Composition and the Antifungal Activities of Bilberry (Vaccinium myrtillus L.) and Bay Laurel (Laurus nobilis L.)
- Author
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Bayar, Yusuf, primary, Onaran, Abdurrahman, additional, Yilar, Melih, additional, and Gul, Fatih, additional
- Published
- 2018
- Full Text
- View/download PDF
30. Evaluation of the Biocontrol Potential of Morina persica L. Extract against Ditylenchus dipsaci (Kühn) Filipjev and Some Plant Pathogenic Fungi
- Author
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Sağlam, Hayriye Didem, Onaran, Abdurrahman, and Kırşehir Ahi Evran Üniversitesi
- Subjects
Ziraat ,Ortak Disiplinler - Abstract
Bu çalışmada, Morina persica L. metanol ekstraktının antifungal ve nematisidal etkinliği belirlenmiştir. Antifungal etkinliğini belirlemede bitki ekstraktı Alternaria solani (Ell. & Mart.), Fusarium oxysporum f. sp. lycopersici (FOL) (Sacc.) W.C. Snyder & H. N. Hans ve Verticillium dahliae Kleb. patojenlerine karşı denenmiştir. Deneme, M. persica ekstraktının 0,625, 1,25, 2,5, 5, 10 ve 20 mg mL'lik konsantrasyonlarında agar petri yöntemi ile gerçekleştirilmiştir. M. persica ekstraktının tüm konsantrasyonları doza bağlı olarak farklı seviyelerde antifungal etkinlik göstermiştir. Nematisidal aktivitesi Ditylenchus dipsaci (Kühn) Filipjev'ye karşı in vitro koşullarda gerçekleştirilmiştir. M. persica ekstraktının 5 farklı konsantrasyonu (31,25, 62,5, 125, 250 ve 500 ppm) D.dipsaci' ye karşı denenmiştir. Nematodlar, 25°C'de 24, 48, 72 ve 96 saat bitki ekstraktına maruz bırakılmıştır. M. persica ekstraktının D.dipsaci'ye karşı oldukça etkili olduğu tespit edilmiştir. Morina persica L. ekstraktı'nın antifungal ve nematisidal etkinliği ilk kez bu çalışma ile belirlenmiş ve ele alınan nematod ve patojenlere karşı biyopestisit olarak potansiyel bir etkiye sahip olduğu saptanmıştır In this study, antifungal and nematicidal effects of methanol extracts of Morina persica L. were determined. In antifungal activities, plant extract was evaluated against Alternaria solani (Ell. & Mart.), Fusarium oxysporum f. sp. lycopersici (FOL) (Sacc.) W.C. Snyder & H. N. Hans and Verticillium dahliae Kleb. The experiment was carried out by the agar plate methods at a concentration of 0.625, 1.25, 2.5, 5, 10 and 20 mg mL. All concentration of M. persica plant extracts was showed a different level of antifungal activities against all the three test fungi depend on concentrations. Nematicidal activity was evaluated against stem nematode Ditylenchus dipsaci (Kühn) Filipjev under in vitro condition. Five different concentrations (31.25, 62.5, 125, 250 and 500 ppm) of M. persica plant extracts were tested. The nematodes exposed to 24, 48, 72 and 96 hours in plant extracts and kept at 25 °C. M. persica plant extracts were found highly effective on D. dipsaci. The plant extracts of Morina persica L. was the first time determined the antifungal and nematicidal activities in this study, and has potential effect as a biopesticide against plant pathogens and plant parasitic nematodes
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- 2017
31. Synthesis, Structural Characterization, and Biological Evaluation of Novel Substituted 1,3-Thiazole Derivatives Containing Schiff Bases
- Author
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Tahtaci, Hakan, Er, Mustafa, Karakurt, Tuncay, Onaran, Abdurrahman, and Kırşehir Ahi Evran Üniversitesi, Fen-Edebiyat Fakültesi, Kimya Bölümü
- Abstract
WOS: 000394058900023 In this study, thiazole derivatives containing Schiff bases (7-9 a-f) were synthesized in moderate to high yields (49-94%) using the Hantzsch reaction with thiosemicarbazone derivatives (5a-c) and 2bromo- 1-phenylethanone derivatives (6a-f). The structures of synthesized compounds were elucidated by IR, H-1 NMR, C-13 NMR, elemental analyses, mass spectroscopy and X-ray diffraction analysis techniques. Moreover, the synthesized compounds were tested for their in vitro antifungal activity and most of them exhibited moderate to good activity against Fusariumoxysporumf.sp. lycopersici. Karabuk UniversityKarabuk University [KBU-BAP-14/1-DS-030] The financial support under the contract (KBU-BAP-14/1-DS-030) from the Karabuk University is gratefully acknowledged.
- Published
- 2017
32. Heracleum platytaenium Boiss. ve Myrtus communis L. bitki uçucu yağlarının Alternaria solani Ell. and G. Martin ve Monilia laxa Aderh. and Ruhl. (Honey) üzerine antifungal aktivitesinin araştırılması
- Author
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Bayan, Yusuf, Yılar, Melih, Onaran, Abdurrahman, Gaziosmanpaşa Üniversitesi, 0-Belirlenecek, and Kırşehir Ahi Evran Üniversitesi
- Subjects
Ziraat ,Ortak Disiplinler ,Antifungal etki,uçucu yağ,Alternaria solani,Monilia laxa ,Biyoloji - Abstract
Bu çalışma, Heracleum platytaenium Boiss. (Öğrek otu) ve Myrtus communis L. (Mersin) bitkilerinden elde edilen uçucu yağların Alternaria solani (erken yanıklık) ve Monilia laxa (kahverengi çürüklük) üzerine aktivitesinin yürütülmüştür. Uçucu yağlar petri kapağına yapıştırılan kaba filtre kâğıdına 0, 1, 3, 5, 7 ve 10 ?l/petri dozlarında emdirilmiş ve kapaklar hemen parafilm ile kapatılarak 7 gün süreyle inkübasyona bırakılmıştır. Çalışma sonucunda Mersin bitkisinin uçucu yağının 7 ve 10 ?l dozları A. solani'nin miselyum gelişimini %100 olarak engellemiştir. Bitkilerin uçucu yağlarının diğer dozları ise A. solani ve M. laxa patojenlerinin miselyum gelişimini önemli ölçüde engellemiş, fakat %100 etki göstermemiştir. Ayrıca bitki uçucu yağlarının M. laxa ve A. solani üzerine dozetki çalışması yapılmıştır. Mersin bitkisinin LC90değeri A. solani için 6,36 ?l, M. laxa için 21,47 ?l ve Öğrek otu bitkisinin ise A. solani için 49,12 ?l, M. laxa için 82,3 ?l olarak hesaplanmıştır. Bu sonuçlar bitki uçucu yağlarının A. solani ve M. laxa kontrolünde kullanılabilir olduğunu göstermiştir This study, was carried out determined the antifungal activity of essential oils obtained from Heracleum platytaenium Boiss. and Myrtus communis L. plants on Alternaria solani (early blight) and Monilia laxa (early brown rot) in vitro conditions. Piece of fitler paper was glued inner parts of each petridish’s lid. After, our different concentrations 0, 1, 3, 5 ve 7, 10 ?l/petri of the essential oil were applied to a coarse fitler paper. The lids were immediately closed with parafilm and allowed to incubate for 7 days. As a result, doses of 7 and 10 ?l of Myrtle essential oil inhibited 100% the growth of mycelial of A. solani. Other doses of essential oils have significantly inhibited the mycelial growth of A. solani and M. laxa pathogens, but have not been 100% effective. In addition, were carried out dose-effect tests of the essential oils against M. laxa and A. solani. Myrtle LC90 values A. solani 6,36 ?l and M. laxa 21,47 ?l and ogrek weed was calculated as 49,12 ?l A. solani and 82,3 ?l M. laxa. These results have shown that plant essential oils can be used to control A. solani and M. laxa
- Published
- 2016
33. Endemik Muscari aucheri (Boiss.) Baker. Ekstraktının Antifungal aktivitesi ve Fe
- Author
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ONARAN, Abdurrahman, primary
- Published
- 2018
- Full Text
- View/download PDF
34. Antifungal Actıvıty Of Liquidambar Orientalis L., And Myrtus Communis L. Agaınst Some Plant Pathogenic Fungi
- Author
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Onaran, Abdurrahman, Bayar, Yusuf, and Kırşehir Ahi Evran Üniversitesi, Ziraat Fakültesi, Bitki Koruma Bölümü
- Subjects
Myrtus communis ,plant extracts ,Liquidambar orientalis ,antifungal activity ,plant pathogens - Abstract
WOS: 000413645300062 As a result of the negative effects of pesticides used in the agricultural field, studies to find alternative methods have to be developed. In this study, Liquidambar orientalis L. (leaf and resin) and Myrtus communis L. (leaf) of methanol extracts of antifungal activities were determined against plant pathogens such as Fusarium oxysporum f. sp. lycopersici (FOL) (Sacc.) W. C. Snyder and H. N. Hans, Alternaria solani (Ell. and G. Martin), Botrytis cinereapers.: Fr, Rhizoctonia solani Kuhn, and Sclerotinia sclerotiorum Lib De Bary which are caused intensive yield loss on tomatoes, strawberries, potatoes and cucumbers both in Turkey and in the world, In order to examine the used plant extracts, percentages of mycelium inhibition (MGI) values were calculated to compare with the positive control (80% Thiram), which is a standard fungicide. Also, the antifungal activities of plant extracts were evaluated statistically. 50 mg, 100 mg, 200 mg and 400 mg/mL of plant extract doses were used. L. orientalis and M. communis were shown distinguished antifungal activity. Plant extract of M. communis showed a strong antifungal effect against the tested fungi when compared with L. orientalis. As a result, nowadays the natural bio-pesticides used are cheap and eco-friendly; therefore they have potential in the control against plant pathogens. University of Ahi Evran [PYO.ZRT.4001.14.001] This study was supported by University of Ahi Evran with the Project Number PYO.ZRT.4001.14.001.
- Published
- 2016
35. Sentezlenen Yeni Ni (II) Komplekslerinin Spektroskopik ve antifungal özelliklerinin İncelenmesi.
- Author
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Karakurt, Tuncay, Meral, Seher, Ağar, Ayşen Alaman, and Onaran, Abdurrahman
- Abstract
Copyright of Bilecik Seyh Edebali University Journal of Science / Bilecik Şeyh Edebali Üniversitesi Sosyal Bilimler Dergisi is the property of Bilecik Seyh Edebali University Journal of Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
36. Novel Substituted Imidazo[2,1‐b][1,3,4]Thiadiazole Derivatives: Synthesis, Characterization, Molecular Docking Study, and Investigation of Their In Vitro Antifungal Activities.
- Author
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Er, Mustafa, Tahtaci, Hakan, Karakurt, Tuncay, and Onaran, Abdurrahman
- Subjects
THIADIAZOLES ,MOLECULAR docking ,FRONTIER orbitals ,MOLECULAR orbitals ,DENSITY functional theory ,MASS spectrometry - Abstract
In this study, a new series of substituted imidazo[2,1‐b][1,3,4]thiadiazole derivatives were synthesized. To this end, first 2‐amino‐1,3,4‐thiadiazole derivatives (compounds 2a and 2b), the starting materials, were synthesized with high yields (82% and 79%, respectively). Then imidazo[2,1‐b][1,3,4]thiadiazole derivatives (4–16), the target compounds, were synthesized from reactions of 2‐amino‐1,3,4‐thiadiazole derivatives (2a and 2b) with 2‐bromoacetophenone derivatives (3a–3i) (in yields of 52% to 71%). All of the synthesized compounds were characterized by 1H NMR, 13C NMR, Fourier transform infrared, elemental analysis, mass spectroscopy, and X‐ray diffraction analysis (compounds 4–12, 14, and 15) techniques. In vitro antifungal activity tests were performed for all of the synthesized compounds. Inhibition zones, percentage of inhibition, minimum fungicidal activity, minimum inhibitory concentration, and lethal dose values of the target compounds were determined against some plant pathogens. According to the results of the biological activity tests, all of the synthesized compounds showed moderate to high levels of antifungal activity. Theoretical calculations were performed to support the experimental results. The geometric parameters of selected compounds (5, 6, and 8) were optimized using the density functional theory B3LYP/6‐31G(d) method in the Gaussian 09W package program, and the frontier molecular orbitals (highest occupied molecular orbital–lowest unoccupied molecular orbital) were calculated theoretically. Finally, molecular docking studies were performed for antifungal activity studies of the selected compounds and to determine whether or not these compounds could be inhibitor agents for the 2RKV protein structure. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
37. BIOLOGICAL ACTIVITY OF FOUR TYPES OF CHITOSAN AGAINST SOME PLANT PATHOGENIC FUNGI.
- Author
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Onaran, Abdurrahman, Tokatli, Kader, Demirdoven, Aslihan, Bayram, Mustafa, and Yanar, Yusuf
- Abstract
Chitosan is a natural carbohydrate polymer acquired by deacetylation of chitin, the second most common polysaccharide in nature, has strong biological activity. Antifungal activities of four types of chitosan were determined against plant pathogens of Verticillium dahliae, Alternaría solani, Monilia fructigena, Botrytis cinerea and Rhizoctonia solani. Biological activity studies were carried out using the agar plate method with doses 0.2, 0.3, 0.5, 1 and 2 mg/ml of chitosan. Each chitosan type showed strong antifungal activity against test fungi. Mycelial growth inhibition (MGI) rates, Minimum fungicidal Concentration (MFC) and, LD
50 and LD90 values of chitosan were calculated. 100% MGI ratios were found in doses of 2 mg/ml for each chitosan. Mycelial growth inhibition was observed even at the lowest dose when compared to the control. According to these results, all doses of chitosan applied against the test fungi were obtained promising results. For the first time with this study, antifungal activity of chitosans was examined against M. fructigena plant pathogen. The result showed that the biological activity of chitosan has been obtained different result according to molecular weight and test fungi. Because of that chitosan is a natural, non-toxic and inexpensive compound, it can be easily used to control plant pathogens. [ABSTRACT FROM AUTHOR]- Published
- 2019
38. Antalya İli’nin Demre, Finike ve Kumluca İlçelerinde Hıyar Yetiştiren Sera İşletmelerinde Çiftçi Uygulamaları Üzerine Bir Araştırma
- Author
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ONARAN, Abdurrahman and YANAR, Yusuf
- Subjects
Greenhouse cucumber production,Grower practices,Antalya (Turkey) ,Serada Hıyar Üretimi,Çiftçi uygulamaları,Antalya - Abstract
This study was conducted to determine the level of grower practices in greenhouse cucumber production enterprises in Demre, Finike and Kumluca towns of Antalya. The data were obtained from 65 agricultural enterprises conducting face to face questionnaire during 2008-2009 growing periods. Total of 65 enterprises 86,15%, 9,23% and 4,62% were private, rent and partnership enterprises respectively. In the enterprises, 90,76% of the greenhouse is glass house and 9,24% is plastic house it was determined that average age of the grower is 42, their cucumber growing experiences are 4 years and average greenhouse size is 2,98 da in the survey area. Based on the results of this study, grower practices should be improved and knowledge shortness of the grower should be eliminated., Bu araştırma, Antalya İli Demre, Finike ve Kumluca ilçelerinde serada hıyar üretimi yapan işletmelerde, çiftçi uygulamalarının ne düzeyde olduğunu belirlemek amacıyla yapılmıştır. Araştırmada kullanılan veriler, 2008–2009 üretim dönemini içerisinde, 65 tarım işletmesinde yüz yüze yapılan anketlerden toplanmıştır. İncelenen işletmelerin %86,15'i mülk işletmeciliği, %9,23'ü kira işletmeciliği ve %4,62'si ortakçılık şeklinde işletilmektedir. İşletmelerde bulunan sera alanlarının %90,76'sı cam ve %9,24'ü plastik seradır. Araştırma bölgelerinde üreticilerin ortalama yaşı 42, hıyar yetiştirme deneyim süreleri ortalama 4 yıl ve ortalama sera alanları 2,98 da olarak belirlenmiştir. Bu araştırmanın sonuçları değerlendirildiğinde, çiftçi uygulamalarının geliştirilmesi ve bilgi eksiklerinin giderilmesi gerektiği ortaya konmuştur.
- Published
- 2014
39. Trachystemon orientalis (L.) G. DON (Kaldırık)'ın herbisidal ve antifungal potansiyeli
- Author
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Yılar, Melih, Onaran, Abdurrahman, Yanar, Yusuf, Belgüzar, Sabriye, Kadıoğlu, İzzet, Gaziosmanpaşa Üniversitesi, and 0-Belirlenecek
- Subjects
Biyoloji - Abstract
Kaldırık bitkisinin ( Trachystemon orientalis (L.) G. DON) yaprak, çiçek ve kök ekstraktlarının antifungal etkileri ve yaprak ekstraktının herbisidal etkisinin belirlenmesi amacıyla Düzce ili Saz Köyü’nden 2010 yılında bitki materyali toplanmıştır. Toplanan bitki yapraklarından elde edilen su ekstraktları %0, % 1, %5, %10 ve %20 konsantrasyonlarda laboratuvar koşullarında Lepidium sativum L. ve Abutilon theophrasti Medik. tohumlarına 9 cm çaplı steril petri kaplarında uygulanmıştır. Kaldırık yaprak su ekstraktları A. theophrasti, L. sativum tohum çimlenmesini sırasıyla %44.6, %70.6, kök uzunluğunu %63.5, %60.9; sürgün uzunluğunu %68.2, %37.4 oranında azaltmışlardır. Konukçuya özelleşme testlerinde kaldırık bitkisi yaprak su ekstraktının 10 kültür bitkisinde (Agropyron cristatum (L.) Gaertn, Brassica oleracea L., Bromus inermis Leyss., Cucurbita moschata Duch., Lactuca sativa L., Lepidium sativum L., Lolium perenne L., Lotus corniculatus L., Medicago sativa L., Phaseolus vulgaris L., Solanum melongena L.) ftotoksik etkisi gözlemlenmemiştir. Kaldırık bitkisinin (yaprak, çiçek ve kök) ekstraktları %0, %1, %3, %5, %7, %10 ve %20 konsantrasyonlarda Fusarium solani Sorauer, Fusarium acuminatum Ell. & Ev. ve Fusarium oxysporum f.sp. lycopersici (Sacc) Synd. & Hans.’nin miselyum gelişimine etkinlikleri in vitro koşullarda saptandı. Denemelerde bitki yaprak ve çiçek su ekstraktları F.solani ve F. acuminatum, F. oxysporum f.sp. lycopersici miselyum gelişimini %20lik dozda %100 inhibe etmiştir. Kök ekstraktı ise F.solani ve F. acuminatum, F. oxysporum f.sp. lycopersici miselyum gelişimini kontrole oranla sırasıyla %32.20-%100, %28.26-%42.27, %0-%12.41 engellemiştir. Plant materials collected from Saz village of Düzce province during 2010 growing priod to determine the herbicidal effect of leaf extracts and antifungal effects of Kaldirik plant ( Trachystemon orientalis (L.) G. DON) leaves, fowers and roots extracts. Water extracts from collected plant leaves were applied to the seeds of Lepidium sativum L. and Abutilon theophrasti Medik in 0% and 1%, 5%, 10%, 20% concentractions in 9 cm diameter sterile disposable petri dish, under laboratory conditions. The water extracts of kaldirik leaves were reduced seed germination of Abutilon theophrasti Medik. and Lepidium sativum L. 44.6% and 70.6%, respectively. Root growths and shoot growths of A. theophrasti and L. sativum were 63.5% and 60.9%; 68.2% and 37.4%, respectively. In host specifcity tests applied doses of water extracts did not shown phytotoxic effects on ten different cultural crops(Agropyron cristatum (L.) Gaertn, Brassica oleracea L., Bromus inermis Leyss., Cucurbita moschata Duch., Lactuca sativa L., Lepidium sativum L., Lolium perenne L., Lotus corniculatus L., Medicago sativa L., Phaseolus vulgaris L., Solanum melongena L.). Kaldirik plant extract (leaves, fowers and roots) were determined in vitro effect on the mycelium development of Fusarium solani Sorauer, Fusarium acuminatum Ell. & Everh. and Fusarium oxysporum f.sp. lycopersici (Sacc) Synd. & Hans in 0%, 1%, 3%, 5%, 7%, 10% and 20% concentractions. In the experiments, the plant leave and fower water extracts was inhibited 100% at a 20% dose mycelium development of F. solani and F. acuminatum, F. oxysporum f.sp. lycopersici. Root extracts inhibited mycelium development of F. solani and F. acuminatum, F. oxysporum f.sp. lycopersici 32.20%-100%, 28.26%- 42.27%, 0%-12.41%, respectively, according to control.
- Published
- 2014
40. Ayvada Kahverengi Çürüklük (Monilinia fructigena Honey in Whetzel) Hastalığının Propolis Etanol Ekstraktı İle Kontrolü.
- Author
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ÖZYİĞİT, Çiğdem, YANAR, Yusuf, YANAR, Dürdane, and ONARAN, Abdurrahman
- Abstract
Copyright of Journal of Agricultural Faculty of Gaziosmanpasa University / Gazi Osman Pasa Üniversitesi Ziraat Fakültesi Dergisi is the property of Gaziosmanpasa University, Agricultural Faculty and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
- View/download PDF
41. Antifungal and Herbicidal Activity of Trachystemon orientalis (L.) G. Don against Some Plant Pathogenic Fungi and Cuscuta campestris Yunck.
- Author
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ONARAN, Abdurrahman and YILAR, Melih
- Subjects
- *
ANTIFUNGAL agents , *PLANT extracts , *PATHOGENIC fungi , *GREENHOUSES , *LEAVES - Abstract
The antifungal and herbicidal activity of Trachystemon orientalis (L.) G. Don aqueous plant extracts were evaluated against important plant pathogenic fungi (Sclerotinia sclerotiorum Lib. De Bary, Alternaria solani (Ellis & G. Martin) Sorauer, Phytophthora infestans (Mont.) de Bary, and Botrytis cinerea Pers.,) and Cuscuta campestris Yunck. Antifungal activity experiments were conducted under laboratory conditions and herbicidal activity was tested in the greenhouses. The leaves, root and flowers of aqueous extracts of T. orientalis at 1, 3, 5, 7, 10 and 20% doses were applied on Potato Dextrose Agar (PDA) and tested to plant diseases, and the dose of 5% of flowers and leaves aqueous extracts of T. orientalis were examined on tobacco (Nicotiana tabacum L.) and sugar beet (Beta vulgaris L.) against C. campestris. Antifungal activity displayed differences inhibited effects on mycelium growth of plant pathogenic fungi according to increasing extract dose and plant pathogenic fungi. The results showed that mycelial growth inhibitions were found effective in all extracts (leaf, flower and root) on S. sclerotiorum 0 to 100%, on A. solani 21 to 100%, on P. infestans 25 to 100% and, on B. cinerea 0 to 100% depending on the extract dose. According to herbicidal activity result the development of C. campestris has been reduced by looking the fresh (in tabocco: 0.3639 g and in sugar beet:0.6749 g) and dry (leaf extracts: in tabacco:0.0675 g and sugar beet: 0.1546 g; flower extracts: in tobacco 0.3246 g and sugar beet: 0.3421g) weight. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
42. Synthesis, Structural Characterization, and Biological Evaluation of Novel Substituted 1,3‐Thiazole Derivatives Containing Schiff Bases
- Author
-
Tahtaci, Hakan, primary, Er, Mustafa, additional, Karakurt, Tuncay, additional, and Onaran, Abdurrahman, additional
- Published
- 2015
- Full Text
- View/download PDF
43. Synthesis, Antifungal Activity and Carbonic Anhydrase Inhibitory Properties of Cu (II) Bis (3, 4 Dimethoxybenzoate) Bis (Nicotinamide) Dihydrate
- Author
-
Kaya, A., primary, Kaya, Elif, additional, Ozturk Sarikaya, S., additional, and Onaran, Abdurrahman, additional
- Published
- 2015
- Full Text
- View/download PDF
44. Türkiye’de Sclerotinia sclerotiorum (Lib.) De Bary Üzerinde Yapılan Çalışmalar
- Author
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ONARAN, Abdurrahman and YANAR, Yusuf
- Subjects
White mold,Sclerotinia sclerotiorum ,Beyaz çürüklük,Sclerotinia sclerotiorum - Abstract
Kültür bitkilerinde sorun olan hastalık etmeni S. sclerotiorum, pamuklu çürüklük, beyaz küf, sulu yumuşak çürüklük, gövde çürüklüğü ve taç çürüklüğü gibi değişik isimlerle adlandırılan önemli bir fungal patojendir. Toprakta uzun süre canlı kalabilmesi ve geniş konukçu çevresine sahip olması nedeniyle rotasyon yolu ile hastalığın kontrolü zordur. Aynı şekilde, ascospor uçuşu ile hastalık yayılma gösterdiği için Türkiye’de ve Dünya’da hastalığın yayılışı çok yoğun şekilde görülmektedir. Hastalık etmeniyle ilgili Dünya’da ve Türkiye’de çeşitli çalışmalar yapılmıştır. Yapılan bu derlemede Türkiye’de S. sclerotiorum üzerine bu güne kadar yapılan çalışmaların değerlendirilmesi amaçlanmıştır., S. sclerotiorum causes diseases on cultural plants called with different names such as cottony rot, white mold, watery soft rot, stem rot and hat rot is significant fungal pathogen. It can survive in soil for a long time as a sclerotium so that it can not be controled with rotation. Similarly it can spread with airborne ascospores, it many causes an epidemic in the world and in Turkey. Many studies were condocted on S. sclerotiorum in Turkey and in the world. This review was aimed at evaluation of the studies done on S. sclerotiorum in Turkey so far
- Published
- 2009
45. Distribution, pathogeniciy and mycelial compatibility groups of Sclerotinia sclerotiorum(Lib.) De Bary, causal agent of white mold disease of cucumber, in greenhouses in the vicinity of Tokat and Amasya
- Author
-
ONARAN, Abdurrahman and YANAR, Yusuf
- Subjects
Hıyar,Beyaz çürüklük (Sclerotinia sclerotiorum ),MUG ,Cucumber,White mold (Sclerotinia sclerotiorum),MCG - Abstract
2003 ve 2004 yıllarında Tokat ve Amasya yöresinde hıyar seralarından hastalıklı bitkilerden Sclerotinia sclerotiorum izolatları elde edilmiştir. İzolatların Misel uyum grupları (MUG) belirlenmiş, toplanan 235 izolat arasında 5 misel uyum grubu tanımlanmıştır. Her iki bölgeden elde edilen izolat çiftleri arasında temas noktasında bir sınır oluşmamışsa bunlar uyumlu kabul edilmiştir. Diğer taraftan birleşme noktasında bir boş alan ve kırmızı hat oluşmuşsa bu izolatlar uyumsuz olarak tanımlanmıştır. Beş misel uyum grubundan 1. uyum grubuna 27 izolat, 2. uyum grubuna 20 izolat, 3. uyum grubuna 31 izolat, 4. uyum grubuna 58 izolat, 5. uyum grubuna 12 izolat girmekte olup, 87 izolat kendi aralarında ve diğer 5 grupla bir uyum göstermemiştir. 5 MUG’nu temsil eden 23 izolat arasında, sınırlı süre inokulasyon yöntemi kullanılarak hıyar fidelerindeki enfeksiyon oranları test edilmiştir. Bu test sonucunda hem gruplar arasında hem de gruplarda bulunan izolatlar arasında enfeksiyon şiddeti bakımından önemli düzeyde farklar bulunmuştur., All Sclerotinia sclerotiorum isolates recovered from infected greenhouse grown cucumber in Tokat and Amasya provinces, in 2003-2004, were tested compatibility and assigned to a mycelial compatibility group (MCG). Five MCG’s were identified among 235 isolates. Isolates pairs from both localitions were designated compatible when no barrage zone was formed in the region of contact. They were designated incompatible when a clear zone and red line were formed in the region where the hyphae interact. MCG-1, 2, 3, 4 and 5 consisted of 27, 20, 31, 58 and 12 isolates respectively remaining eighty seven isolates did not give any compatible reaction with each other and with one of five groups. Twenty three isolates representing 5 MCG’s were evaluated for aggressiveness on cucumber seedlings usin a limited-term inoculation test. This test identified significant differecens in aggressiveness among isolates in different MCG’s as well as in the same MCG
- Published
- 2008
46. Tokatve Amasya yöresinde seralarda hıyarlarda görülen beyaz çürüklük etmeni Sclerotinia scleroioruml (Lib.) DeBary'un yaygınlığı, patojenitesi ve miselyum uyumluluk gruplarının belirlenmesi üzerine araştırmalar
- Author
-
Onaran, Abdurrahman, Yanar, Yusuf, and Bitki Koruma Ana Bilim Dalı
- Subjects
Ziraat ,Agriculture - Abstract
Ill ABSTRACT STUDY ON DISTRIBUTION, PATHOGENİCÎY AND MYCELIAL COMPATIBILITY GROUPS OF Sclerotinia sclerotiorum (LİB.) DE BARY, CAUSAL AGENT OF WHITE MOLD DISEASE OF GREENHOUSE GROWN CUCUMBER IN THE VİCİNİTY OF TOKAT AND AMASYA Abdurrahman ONARAN Gaziosmanpaşa Üniversitesi Graduate School of Natural Applied Science Deparment of Plant Protection Master Thesis 2005, 57 page Supervisor: Asist. Prof. Dr. Yusuf YANAR Jury: Prof. Dr. İzzet KADIOĞLU Jury: Prof. Dr. Erkol Demirci All Sclerotinia sclerotiorum isolates recovered from infected greenhouse grown cucumber in Tokat and Amasya provinces, in 2003-2004, were tested compatibility and assigned to a mycelial compatibility group (MCG). Five MCG's were identified among 235 isolates. From both localitions isolates pairs were designated compatible when no barrage zone was formed in the region of contact. They were designated incompatible when a clear zone and red line were formed in the region where the hyphae interact. MCG- 1, 2, 3, 4 and 5 consisted of 27, 20, 31, 58 and 12 isolates respectively remaining eighty seven isolates did not give any compatible reaction with each other and with one of five groups.IV Twenty three isolates representing 5 MCG's were evaluated for aggressiveness on cucumber seedlings usin a limited-term inoculation test. This test identified significant differecens in aggressiveness among isolates in different MCG's as well as in the same MCG. Key words: Cucumber, White mold ÇS. sclerotiorum), MCG, Pathogenicity Ill ABSTRACT STUDY ON DISTRIBUTION, PATHOGENİCÎY AND MYCELIAL COMPATIBILITY GROUPS OF Sclerotinia sclerotiorum (LİB.) DE BARY, CAUSAL AGENT OF WHITE MOLD DISEASE OF GREENHOUSE GROWN CUCUMBER IN THE VİCİNİTY OF TOKAT AND AMASYA Abdurrahman ONARAN Gaziosmanpaşa Üniversitesi Graduate School of Natural Applied Science Deparment of Plant Protection Master Thesis 2005, 57 page Supervisor: Asist. Prof. Dr. Yusuf YANAR Jury: Prof. Dr. İzzet KADIO?LU Jury: Prof. Dr. Erkol Demirci All Sclerotinia sclerotiorum isolates recovered from infected greenhouse grown cucumber in Tokat and Amasya provinces, in 2003-2004, were tested compatibility and assigned to a mycelial compatibility group (MCG). Five MCG's were identified among 235 isolates. From both localitions isolates pairs were designated compatible when no barrage zone was formed in the region of contact. They were designated incompatible when a clear zone and red line were formed in the region where the hyphae interact. MCG- 1, 2, 3, 4 and 5 consisted of 27, 20, 31, 58 and 12 isolates respectively remaining eighty seven isolates did not give any compatible reaction with each other and with one of five groups.IV Twenty three isolates representing 5 MCG's were evaluated for aggressiveness on cucumber seedlings usin a limited-term inoculation test. This test identified significant differecens in aggressiveness among isolates in different MCG's as well as in the same MCG. Key words: Cucumber, White mold ÇS. sclerotiorum), MCG, Pathogenicity 66
- Published
- 2005
47. Determination of the Essential Oil Composition and the Antifungal Activities of Bilberry (Vaccinium myrtillusL.) and Bay Laurel (Laurus nobilisL.)
- Author
-
Bayar, Yusuf, Onaran, Abdurrahman, Yilar, Melih, and Gul, Fatih
- Abstract
AbstractThis study aimed to determine the composition andthe antifungal activity of the essential oils of Vaccinium myrtillusand Laurus nobilisplants. In the study, 22 components were identified in the essential oil of V. myrtillus, which represented 100% of the total essential oils. Accordingly, 1,8-cineole (41.07%), β-Linalool (12.72%), α-Pinene (12.17%) and Myrtenol (6.48%) were determined as the main components of the essential oil of V. myrtillus. The essential oil of L. nobilisconsisted of 39 compounds and 1,8-cineole (50.68%), α-Terpinyl acetate (14.19%), 4-Terpinenol (4.07%) and α-Terpineol (2.90%) were determined as the main components, which represented 100% of the total essential oils. In the trials, doses of 0 (control) 1, 2, 4, 8 and 10 μL/petri dish were used. V. myrtillusessential oil inhibited mycelial growth in Sclerotinia sclerotiorum (Lib.), Alternaria solani, Fusarium oxysporumf. sp. radicis-lycopersici(Sacc.) W.C. Synder & H.N. Hans (FORL) and and Verticillium dahliaeKleb by 61.38%, 100%, 80.36% and 57.91% respectively. Bay laurel essential oil at 10 μL/petri dish dose inhibited the mycelial growth of A. solani, S. sclerotiorum,(FORL) by 100%, whereas it inhibited the mycelial growth in V. dahliaeby 61.23%. Study results showed that V. myrtillusand L. nobilisessential oils have strong antifungal activities.
- Published
- 2018
- Full Text
- View/download PDF
48. Heracleum platytaenium Boiss. ve Myrtus communis L. bitki uçucu yağlarının Alternaria solani Ell. and G. Martin ve Monilia laxa Aderh. and Ruhl. (Honey) üzerine antifungal aktivitesinin araştırılması.
- Author
-
BAYAN, Yusuf, YILAR, Melih, and ONARAN, Abdurrahman
- Abstract
Copyright of Academic Journal of Agriculture / Akademik Ziraat Dergisi is the property of University of Ordu, Faculty of Agriculture, Academic Journal of Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
49. Trachystemon orientalis (L.) G. Don (Kaldırık)'ın Herbisidal ve Antifungal Potansiyeli.
- Author
-
YILAR, Melih, ONARAN, Abdurrahman, YANAR, Yusuf, BELGÜZAR, Sabriye, and KADIOĞLU, İzzet
- Abstract
Plant materials collected from Saz village of Düzce province during 2010 growing priod to determine the herbicidal effect of leaf extracts and antifungal effects of Kaldirik plant (Trachystemon orientalis (L.) G. DON) leaves, flowers and roots extracts. Water extracts from collected plant leaves were applied to the seeds of Lepidium sativum L. and Abutilon theophrasti Medik in 0% and 1%, 5%, 10%, 20% concentractions in 9 cm diameter sterile disposable petri dish, under laboratory conditions. The water extracts of kaldirik leaves were reduced seed germination of Abutilon theophrasti Medik. and Lepidium sativum L. 44.6% and 70.6%, respectively. Root growths and shoot growths of A. theophrasti and L. sativum were 63.5% and 60.9%; 68.2% and 37.4%, respectively. In host specificity tests applied doses of water extracts did not shown phytotoxic effects on ten different cultural crops(Agropyron cristatum (L.) Gaertn, Brassica oleracea L., Bromus inermis Leyss., Cucurbita moschata Duch., Lactuca sativa L., Lepidium sativum L., Lolium perenne L., Lotus corniculatus L., Medicago sativa L., Phaseolus vulgaris L., Solanum melongena L.). Kaldirik plant extract (leaves, flowers and roots) were determined in vitro effect on the mycelium development of Fusarium solani Sorauer, Fusarium acuminatum Ell. & Everh. and Fusarium oxysporum f.sp. lycopersici (Sacc) Synd. & Hans in 0%, 1%, 3%, 5%, 7%, 10% and 20% concentractions. In the experiments, the plant leave and flower water extracts was inhibited 100% at a 20% dose mycelium development of F. solani and F. acuminatum, F. oxysporum f.sp. lycopersici. Root extracts inhibited mycelium development of F. solani and F. acuminatum, F. oxysporum f.sp. lycopersici 32.20%-100%, 28.26%- 42.27%, 0%-12.41%, respectively, according to control. [ABSTRACT FROM AUTHOR]
- Published
- 2014
50. Synthesis, Antifungal Activity and Carbonic Anhydrase Inhibitory Properties of Cu (II) Bis (3, 4 Dimethoxybenzoate) Bis (Nicotinamide) Dihydrate
- Author
-
Afsin Kaya, A., C. Kaya, Elif, Ozturk Sarikaya, S. Beyza, and Onaran, Abdurrahman
- Abstract
The new 3,4-dimethoxybenzoate complex of Cu(II) with nicotinamide was synthesized and characterized by elemental analysis, FT-IR spectroscopic study, UV-Vis spectrophotometry and mass spectrometry. The thermal behavior of the complex was studied by simultaneous TG, DTG and DTA methods in static air atmosphere. The infrared spectral characteristics of the complex is also discussed. In this complex, all ligands are coordinated to the metal ion as monodendate ligands. The final decomposition products were found to be the respective metal oxide. As it is well known, metal complexes of biologically important ligands are sometimes more effective than the free ligands. In this study the new compound was synthesized due to its functional groups such as veratric acid and nikotin amide, which have known biological characteristics and effective in terms of both enzyme and antifungal properties from recent studies. Therefore, antifulgal activity and enzyme inhibition properties of this complex have been examined.
- Published
- 2015
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