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5. Resistance ratios and enzyme activity of Tetranychus urticae and Tetranychus turkestani (Acari: Tetranychidae) to commonly used acaricides on cotton in Aydin province, Türkiye.

Author

Duran, Selin Güler, Özyilmaz, Ümit, Ay, Recep, Touray, Mustapha, Kazak, Cengiz, Saboori, Alireza, and Cakmak, Ibrahim

Subjects
TWO-spotted spider mite, SPIDER mites, ACARICIDES, ABAMECTIN, TETRANYCHUS, GLUTATHIONE transferase
Abstract

This study aims to determine the resistance ratios of Tetranychus urticae Koch red form (RF) and Tetranychus turkestani (Ugarov & Nikolskii) populations collected from cotton fields in Soke, Germencik, Kocarli and Nazilli districts of Aydin province to commonly used acaricides (abamectin, hexythiazox, etoxazole, spiromesifen). The potential role of detoxification enzymes (esterase, glutathione-s-transferase (GST), P450 monooxygenase (P450)) in acaricide resistance was also assessed. Overall populations of T. urticae RF presented varying ratios of resistance to these acaricides with all three populations (G15R21, K24R21, S3R21) showing significant resistance to abamectin (187.1–223.66 fold), hexythiazox (156.31–168.25 fold), etoxazole (409.58–517.20 fold) and spiromesifen (981.77–1246.11 fold). In contrast, all five T. turkestani populations (G4G21, K16G21, N1G21, N11G21, S19G21) were susceptible to abamectin, etoxazole, and spiromesifen, but exhibited some resistance to hexythiazox (164.34–182.39 fold). The resistance ratios of T. turkestani were however lower compared to T. urticae RF. A relationship was also found between detoxification enzymes and resistance. Esterase activity varied among mite populations, with the highest levels recorded in resistant populations of T. urticae (G15R21 and K24R219) with rates ranging between 6.48 and 7 mOD/min/mg protein. GST activity was highest in resistant mite populations (T. urticae S3R21 and T. turkestani K16G21). T. turkestani N11G21 population exhibited the highest P450 enzyme activity, reaching 4.39 RFU/30 min/mg protein. This study was the first to determine the resistance ratios of T. turkestani to hexythiazox in Türkiye, and on a global scale. [ABSTRACT FROM AUTHOR]

Published
2024
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28. Drone Semen Cryopreservation with Protein Supplemented TL-Hepes Based Extender

Author

Alcay, Selim, Cakmak, Selvinar, Cakmak, Ibrahim, Mulkpinar, Emine, Toker, Mehmed Berk, Ustuner, Burcu, Sen, Hasan, and Nur, Zekariya

Subjects
bovine serum albumin, Veterinary medicine, SF600-1100, cryopreservation, drone spermatozoa
Abstract

The aim of the current study was to determine the optimum concentration of bovine serum albumin for post-thawing quality of drone sperm and this is the first study to evaluate the effect of BSA supplemented TL-Hepes based extenders for drone semen cryopreservation. Sexually mature drones were used for semen collection. Pooled semen was diluted with TL-Hepes based extender supplemented with different concentrations of BSA (1 mg/mL, 3 mg/mL, and 5 mg/mL) or without BSA (control), at a final concentration of 100x10(6) spermatozoon/mL. Motility, plasma membrane functional integrity (HOST), and defected acrosome (PSA-FITC) were evaluated in the study. At post thaw, the highest sperm motility rates were obtained in the BSA5 group (P< 0.05). Functional integrity of sperm membrane was better preserved in the BSA3 and BSA5 groups compared to the other groups. The acrosomal integrity rates were higher in BSA5 group than in control group (P< 0.05). The study shows that bovine serum albumin supplemented TL-Hepes based extenders have beneficial effect on drone semen parameters at post-thaw. The results of the study demonstrated a notable advantage of using 5 mg/mL of BSA in TL-Hepes based extender.

Published
2019

31. Development And Life History Parameters Of Typhlodromus Recki (Acari: Phytoseiidae) Feeding On Tetranychus Urticae (Acari: Tetranychidae) At Different Temperatures

Author

Ersin, Firdevs, Turanli, Ferit, and Cakmak, Ibrahim

Subjects
life history, Typhlodromus (Anthoseius) recki, Phytoseiidae, Tetranychus urticae, Development
Abstract

Typhlodromus recki (Acari: Phytoseiidae) was collected from aubergines, pepper, black nightshade and jimsonweed plants infested with spider mites from a pesticide-free vegetable garden in Denizli, Turkey. The biology and life table parameters for T. recki feeding on Tetranychus urticae (Acari: Tetranychidae) at different temperatures (15, 20, 25, 30 and 35 degrees C) were determined. The results showed that total preadult periods of T. recki at 15, 20, 25, 30 and 35 degrees C were 19.6 +/- 0.51, 9.4 +/- 0.16, 7.6 +/- 0.14, 5.7 +/- 0.14 and 4.5 +/- 0.08 days, respectively. The longest oviposition period was 23.5 days at 20 degrees C. Total fecundity of T. recki significantly differed between the constant temperatures and the highest was observed at 20 degrees C (28.6 eggs/female) and 25 degrees C (23.5 eggs/female). Although females survived for 26 days at 35 degrees C, only four females laid eggs for 1 day. Thus, 35 degrees C is not suitable for the reproduction of T. recki. Total longevity of female was the longest at 15 degrees C (59.5 days) and 20 degrees C (51.3 days) whereas male total longevity was the longest at 15 degrees C (53.2 days). The intrinsic rate of increase (r) and finite rate of increase (lambda) were numerically the highest at 30 degrees C (0.17 and 1.18 d(-1)), but there was no statistical difference observed between 25 and 30 degrees C for both r and lambda values. The net productive rate was significantly highest at 20, 25 and 30 degrees C. The longest mean generation time occurred at 15 degrees C (42.6 days) and the shortest was at 35 degrees C (8.0 days). After some field trials, Typhlodromus recki could potentially be considered in the biological control agent of T. urticae., Scientific and Technological Research Council of Turkey (TUBITAK) [118O666], This study was supported by the Scientific and Technological Research Council of Turkey (TUBITAKproject number: 118O666) . We are grateful to Ian T. Riley for editing the manuscript , Hsin Chi and Remzi Atlihan for analyzing of life history parameters.

Published
2021

45. Promoter Activation In Delta Hfq Mutants As An Efficient Tool For Specialized Metabolite Production Enabling Direct Bioactivity Testing

Author

Bode, Edna, Heinrich, Antje K., Hirschmann, Merle, Abebew, Desalegne, Shi, Yan-Ni, Tien Duy Vo, Wesche, Frank, Shi, Yi-Ming, Gruen, Peter, Simonyi, Svenja, Keller, Nadine, Engel, Yvonne, Wenski, Sebastian, Bennet, Reuel, Beyer, Sophie, Bischoff, Iris, Buaya, Anthony, Brandt, Sophie, Cakmak, Ibrahim, and Cimen, Harun

Subjects
technology, industry, and agriculture
Abstract

Natural products (NPs) from microorganisms have been important sources for discovering new therapeutic and chemical entities. While their corresponding biosynthetic gene clusters (BGCs) can be easily identified by gene-sequencesimilarity-based bioinformatics strategies, the actual access to these NPs for structure elucidation and bioactivity testing remains difficult. Deletion of the gene encoding the RNA chaperone, Hfq, results in strains losing the production of most NPs. By exchanging the native promoter of a desired BGC against an inducible promoter in Dhfq mutants, almost exclusive production of the corresponding NP from the targeted BGC in Photorhabdus, Xenorhabdus and Pseudomonas was observed including the production of several new NPs derived from previously uncharacterized non-ribosomal peptide synthetases (NRPS). This easyPACId approach (easy Promoter Activated Compound Identification) facilitates NP identification due to low interference from other NPs. Moreover, it allows direct bioactivity testing of supernatants containing secreted NPs, without laborious purification.

Published
2019

46. Mites parasitizing aphids in the parks and gardens of Aydin, with eight newly recorded mite species for Turkey and re-description of Allothrombium clavatum (Acari: Trombidiidae).

Author

Oner, Durmus, Kök, Şahin, Saboori, Alireza, and Cakmak, Ibrahim

Subjects
MITES, COTTON aphid, APHIDS, SPECIES, GARDEN cities, GARDENS, URBAN gardens
Abstract

This study was carried out to determine the mites parasitizing aphids in the park and gardens in Aydin city between March 2019 and June 2020. As a result, a total of 1276 mite larvae were collected and 12 species were identified. Eight species, Allothrombium clavatum, A. polikarpi (Trombidiidae), Erythraeus (Erythraeus) phalangoides, E. (E.) uhadi, Erythraeus (Zaracarus) coleopterus, E. (Z.) iranicus, E. (Z.) kurdistaniensis (Erythraeidae) and Lassenia novoseljensis (Tanaupodidae), are new records to the Turkish fauna. The larvae of the mites were ectoparasites of 10 different aphid species: Aphis (Aphis) craccivora, A. (A.) nerii, Aulacorthum (Aulacorthum) solani, Brachycaudus (Appelia) tragopogonis, Hyalopterus pruni, Hyperomyzus (Hyperomyzus) lactucae, Macrosiphoniella (Macrosiphoniella) sanborni, Myzus (Nectarosiphon) persicae, Uroleucon (Uroleucon) sonchi, U. (U.) aeneum (Hemiptera: Aphididae). Erythraeus (E.) ankaraicus was the most common with a rate of 42.4% followed by A. triticium with 22.9% and E.(E.)phalangoideswith 19.7%. Most of the mites were collected from Uroleucon (U.) sonchi with a rate of 69.4%, followed by H. pruni with 8.5% and Aulacorthum (A.) solani with 6.0%. The mites were collected mostly in the spring with 86.9% and of which 51.9% was obtained in May. Allothrombium clavatumis also re-described and some data for collected species are corrected. [ABSTRACT FROM AUTHOR]

Published
2021
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47. L-Carnitine Supplemented Extenders Improve Post-Thawing Quality of Honey Bee Drone (Apis mellifera) Spermatozoa.

Author

ALCAY, Selim, CAKMAK, Selvinar, CAKMAK, Ibrahim, AKTAR, Ahmet, YILMAZ, Melih, USTUNER, Burcu, AKKASOGLU, Mustafa, TASKIRAN, Seyma, AYAZ, Elif, SAGIRKAYA, Hakan, and NUR, Zekariya

Subjects
FROZEN semen, HONEYBEES, CARNITINE, LIPID peroxidation (Biology), SPERMATOZOA, SPERM motility
Abstract

Copyright of Kafkas Universitesi Veteriner Fakultesi Dergisi is the property of University of Kafkas, Faculty of Veterinary Medicine 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
2021
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48. Back Cover: Promoter Activation in Δ hfq Mutants as an Efficient Tool for Specialized Metabolite Production Enabling Direct Bioactivity Testing (Angew. Chem. Int. Ed. 52/2019)

Author

Bode, Edna, primary, Heinrich, Antje K., additional, Hirschmann, Merle, additional, Abebew, Desalegne, additional, Shi, Yan‐Ni, additional, Vo, Tien Duy, additional, Wesche, Frank, additional, Shi, Yi‐Ming, additional, Grün, Peter, additional, Simonyi, Svenja, additional, Keller, Nadine, additional, Engel, Yvonne, additional, Wenski, Sebastian, additional, Bennet, Reuel, additional, Beyer, Sophie, additional, Bischoff, Iris, additional, Buaya, Anthony, additional, Brandt, Sophie, additional, Cakmak, Ibrahim, additional, Çimen, Harun, additional, Eckstein, Simone, additional, Frank, Denia, additional, Fürst, Robert, additional, Gand, Martin, additional, Geisslinger, Gerd, additional, Hazir, Selcuk, additional, Henke, Marina, additional, Heermann, Ralf, additional, Lecaudey, Virginie, additional, Schäfer, Wilhelm, additional, Schiffmann, Susanne, additional, Schüffler, Anja, additional, Schwenk, Rebecca, additional, Skaljac, Marisa, additional, Thines, Eckhard, additional, Thines, Marco, additional, Ulshöfer, Thomas, additional, Vilcinskas, Andreas, additional, Wichelhaus, Thomas A., additional, and Bode, Helge B., additional

Published
2019
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49. Rücktitelbild: Promoter Activation in Δ hfq Mutants as an Efficient Tool for Specialized Metabolite Production Enabling Direct Bioactivity Testing (Angew. Chem. 52/2019)

Author

Bode, Edna, primary, Heinrich, Antje K., additional, Hirschmann, Merle, additional, Abebew, Desalegne, additional, Shi, Yan‐Ni, additional, Vo, Tien Duy, additional, Wesche, Frank, additional, Shi, Yi‐Ming, additional, Grün, Peter, additional, Simonyi, Svenja, additional, Keller, Nadine, additional, Engel, Yvonne, additional, Wenski, Sebastian, additional, Bennet, Reuel, additional, Beyer, Sophie, additional, Bischoff, Iris, additional, Buaya, Anthony, additional, Brandt, Sophie, additional, Cakmak, Ibrahim, additional, Çimen, Harun, additional, Eckstein, Simone, additional, Frank, Denia, additional, Fürst, Robert, additional, Gand, Martin, additional, Geisslinger, Gerd, additional, Hazir, Selcuk, additional, Henke, Marina, additional, Heermann, Ralf, additional, Lecaudey, Virginie, additional, Schäfer, Wilhelm, additional, Schiffmann, Susanne, additional, Schüffler, Anja, additional, Schwenk, Rebecca, additional, Skaljac, Marisa, additional, Thines, Eckhard, additional, Thines, Marco, additional, Ulshöfer, Thomas, additional, Vilcinskas, Andreas, additional, Wichelhaus, Thomas A., additional, and Bode, Helge B., additional

Published
2019
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50. Promoter Activation in Δ hfq Mutants as an Efficient Tool for Specialized Metabolite Production Enabling Direct Bioactivity Testing

Author

Bode, Edna, primary, Heinrich, Antje K., additional, Hirschmann, Merle, additional, Abebew, Desalegne, additional, Shi, Yan‐Ni, additional, Vo, Tien Duy, additional, Wesche, Frank, additional, Shi, Yi‐Ming, additional, Grün, Peter, additional, Simonyi, Svenja, additional, Keller, Nadine, additional, Engel, Yvonne, additional, Wenski, Sebastian, additional, Bennet, Reuel, additional, Beyer, Sophie, additional, Bischoff, Iris, additional, Buaya, Anthony, additional, Brandt, Sophie, additional, Cakmak, Ibrahim, additional, Çimen, Harun, additional, Eckstein, Simone, additional, Frank, Denia, additional, Fürst, Robert, additional, Gand, Martin, additional, Geisslinger, Gerd, additional, Hazir, Selcuk, additional, Henke, Marina, additional, Heermann, Ralf, additional, Lecaudey, Virginie, additional, Schäfer, Wilhelm, additional, Schiffmann, Susanne, additional, Schüffler, Anja, additional, Schwenk, Rebecca, additional, Skaljac, Marisa, additional, Thines, Eckhard, additional, Thines, Marco, additional, Ulshöfer, Thomas, additional, Vilcinskas, Andreas, additional, Wichelhaus, Thomas A., additional, and Bode, Helge B., additional

Published
2019
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