46 results on '"Ludwigia adscendens"'
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2. Biotechnological and Illustration Study of Ludwigia adscendens Aquatic Plant Growing in Sewage.
- Author
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Mousa, Mohamed A., Sadek, Ahmed M., and Elkady, Alaa A.
- Subjects
- *
AQUATIC plants , *SEWAGE , *BIOLOGICAL systems , *GENETIC barcoding , *COMPOSITION of grain , *PRIMROSES - Abstract
The water primrose has garnered noteworthy consideration due to its detrimental impact on both the economy and environment. Ludwigia adscendens is one of two species which represent the genus Ludwigia among the Egyptian aquatic flora. Therefore, understanding Ludwigia adscendens at deferent levels was essential to develop reasonable strategies to manage or utilize it positively. Life systems of different organs was conducted to provide a clear picture of the internal structures involved in the plant’s survival in sewage biological system. Aerenchyma tissue, distributed as the main tissue in most organs, allows the plant to float and maintain balance. SEM investigation revealed dust grains with diverse composition, symmetrical radiographic pattern, large size (58.5µm in polar diameter and 43.5µm in equatorial diameter), and oblate shape. DNA barcoding was supported using the rbcL gene for identification, revealing significant diversity across various biological and botanical methods. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF
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3. The complete chloroplast genome sequence of Ludwigia adscendens (L.) Hara, 1953 (Onagraceae)
- Author
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Jieqiong Shen, Xiaoqing Wan, and Jun Xiao
- Subjects
Ludwigia adscendens ,onagraceae ,chloroplast genome ,phylogenetic analysis ,Genetics ,QH426-470 - Abstract
AbstractLudwigia adscendens (L.) Hara, 1953 (L. adscendens) belongs to the family Onagraceae, which is a traditional medicinal plant distributed worldwide. In this study, the first complete chloroplast genome of L. adscendens was sequenced and assembled. The assembled chloroplast genome of L. adscendens is 159,560 bp in length, containing a pair of inverted repeat region A (IRA) of 24,762 bp, inverted repeat region B (IRB) of 24,762 bp, separated by a large single-copy (LSC) sequence of 90,276 bp and a small single-copy (SSC) region of 19, 760 bp, respectively. A total of 129 genes were annotated in the entire chloroplast genome, consisting of 37 transfer RNA (tRNA) genes, 8 ribosomal RNA (rRNA) genes, and 84 protein-coding genes, with a total GC content of 37.27%. The phylogenomic analysis showed that L. adscendens was closely related to L. octovalvis in the Onagraceae family. Further evolutionary studies of the genus Ludwigia could benefit from the complete chloroplast genome of L. adscendens present in this study and the obtained results would provide useful information for future phylogenetic, taxonomic, and evolutionary studies on Onagraceae. more...
- Published
- 2023
- Full Text
- View/download PDF
4. The complete chloroplast genome sequence of Ludwigia adscendens (L.) Hara, 1953 (Onagraceae).
- Author
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Shen, Jieqiong, Wan, Xiaoqing, and Xiao, Jun
- Subjects
CHLOROPLAST DNA ,CHLOROPLASTS ,WHOLE genome sequencing ,TRANSFER RNA ,RIBOSOMAL RNA - Abstract
Ludwigia adscendens (L.) Hara, 1953 (L. adscendens) belongs to the family Onagraceae, which is a traditional medicinal plant distributed worldwide. In this study, the first complete chloroplast genome of L. adscendens was sequenced and assembled. The assembled chloroplast genome of L. adscendens is 159,560 bp in length, containing a pair of inverted repeat region A (IRA) of 24,762 bp, inverted repeat region B (IRB) of 24,762 bp, separated by a large single-copy (LSC) sequence of 90,276 bp and a small single-copy (SSC) region of 19, 760 bp, respectively. A total of 129 genes were annotated in the entire chloroplast genome, consisting of 37 transfer RNA (tRNA) genes, 8 ribosomal RNA (rRNA) genes, and 84 protein-coding genes, with a total GC content of 37.27%. The phylogenomic analysis showed that L. adscendens was closely related to L. octovalvis in the Onagraceae family. Further evolutionary studies of the genus Ludwigia could benefit from the complete chloroplast genome of L. adscendens present in this study and the obtained results would provide useful information for future phylogenetic, taxonomic, and evolutionary studies on Onagraceae. [ABSTRACT FROM AUTHOR] more...
- Published
- 2023
- Full Text
- View/download PDF
5. Age-stage, two-sex life table of the biocontrol agent, Altica cyanea on three Ludwigia species.
- Author
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Mitra, Saubhik, Mobarak, Syed Husne, and Barik, Anandamay
- Subjects
- *
LIFE tables , *BIOLOGICAL weed control , *BIOLOGICAL pest control agents , *SPECIES , *POPULATION forecasting , *FERTILITY , *ANTINUTRIENTS - Abstract
Altica cyanea (Weber, 1801) (Coleoptera: Chrysomelidae) is a biocontrol agent of Onagraceae rice-field weeds, Ludwigia adscendens (L.) Hara, L. parviflora Roxb. and L. octovalvis (Jacq.) Raven in India. Hence, it is relevant to study the life history traits and population growth of A. cyanea on three Ludwigia species using age-stage, two-sex life table. The nutritional and antinutritional contents from leaves of the Ludwigia species were measured to comment on the role of nutrients and antinutrients on growth, development and fecundity of A. cyanea. Total larval developmental time was the shortest on L. adscendens (17.78 ± 0.22 days), intermediate on L. parviflora (20.35 ± 0.24 days) and the longest on L. octovalvis (21.98 ± 0.24 days). Total fecundity was the highest on L. adscendens (147.22 ± 4.74 eggs/female) followed by L. parviflora (119.28 ± 4.70 eggs/female) and the lowest on L. octovalvis (89.62 ± 3.45 eggs/female). The intrinsic rate of increase (r) ranged from 0.0639 to 0.0875 d− 1, which was the lowest on L. octovalvis and the highest on L. adscendens. Population projection indicates that the population growth would be the fastest on L. adscendens and the slowest on L. octovalvis. The nutrients (lipids, amino acids and nitrogen) and antinutrients (tannins) were higher and lower, respectively, in L. adscendens than the other two Ludwigia species, which influenced faster larval development, higher adult longevity and greater fecundity of A. cyanea on L. adscendens. This study suggested that mass release of A. cyanea could be applied in biocontol program of these three Ludwigia weeds. [ABSTRACT FROM AUTHOR] more...
- Published
- 2021
- Full Text
- View/download PDF
6. Ludwigia adscendens H. Hara 1953
- Author
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Luo, Yike and Xie, Lei
- Subjects
Tracheophyta ,Magnoliopsida ,Myrtales ,Ludwigia adscendens ,Biodiversity ,Plantae ,Onagraceae ,Ludwigia ,Taxonomy - Abstract
4.1. Ludwigia adscendens (L.) H.Hara. ≡ Jussiaea adscendens L. Neotype (designated by Raven et al. 2007: 605):— INDIA. Karnataka: Hassan District, Mysore, Belur-Gendehally road. 1969, C. Saldanha 15027 (MO2334663, isoneotypes JSB, K, US01049619!). Distribution: —W Nepal, S Hengduan., Published as part of Luo, Yike & Xie, Lei, 2023, A checklist of Onagraceae in the Pan-Himalaya region, pp. 245-268 in Phytotaxa 597 (4) on page 263, DOI: 10.11646/phytotaxa.597.4.1, http://zenodo.org/record/7958600 more...
- Published
- 2023
- Full Text
- View/download PDF
7. Attraction of the potential biocontrol agent Altica cyanea by volatile compounds of three species of Ludwigia weeds from rice fields.
- Author
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Mitra, Saubhik, Karmakar, Amarnath, Das, Swati, and Barik, Anandamay
- Subjects
- *
BIOLOGICAL weed control , *PADDY fields , *BIOLOGICAL pest control agents , *WEEDS , *SPECIES , *VOLATILE organic compounds - Abstract
Ludwigia adscendens (L.) Hara, Ludwigia parviflora Roxb., and Ludwigia octovalvis (Jacq.) Raven (Onagraceae) are abundant weeds in rice fields in India. These weeds compete with rice for resources in fields and this results in reduction of grain yield. Altica cyanea (Weber) (Coleoptera: Chrysomelidae) is a biocontrol agent of the three rice‐field weeds. Hence, it is relevant to study host preference of A. cyanea using volatile cues of these three weeds. Therefore, we attempted to identify volatiles from leaves of the three Ludwigia species attracting A. cyanea, which could be used as an attractant during early emergence of the weeds in rice fields. In Y‐tube olfactometer assays, A. cyanea females were more attracted to natural volatiles of plants after 48 h of feeding by adults than to volatiles of undamaged plants. The volatile organic compounds from undamaged plants, and plants after 6 and 48 h of feeding by A. cyanea were identified and quantified by gas chromatography and mass spectrometry (GC–MS) and GC‐flame ionization detection (FID), respectively. In total, 25, 29, and 29 volatile compounds were detected in headspaces of undamaged L. adscendens, L. parviflora, and L. octovalvis, respectively, whereas 32, 35, and 34 compounds, respectively, were detected after 48 h of feeding by A. cyanea. Methyl jasmonate predominated among the volatile compounds in all treatments, but this compound was not attractive to A. cyanea. Females were attracted by synthetic blends of 3‐hexanol, α‐pinene, linalool oxide, and phytol in amounts mimicking those in each of the three Ludwigia species after 48 h of feeding by A. cyanea. The blends mimicking L. adscendens and L. parviflora included geraniol, whereas the blend mimicking L. parviflora also included 1‐tridecanol. These synthetic blends may be helpful to monitor A. cyanea in biocontrol programmes. [ABSTRACT FROM AUTHOR] more...
- Published
- 2020
- Full Text
- View/download PDF
8. Activities of antioxidant enzymes in three species of Ludwigia weeds on feeding by Altica cyanea.
- Author
-
Mitra, S., Mobarak, S.H., Karmakar, A., and Barik, A.
- Abstract
Altica cyanea (Weber) (Coleoptera: Chrysomelidae) is a potential biocontrol agent of rice-field weeds, Ludwigia adscendens (L.) Hara, L. parviflora Roxb., and L. octovalvis (Jacq.) Raven (Onagraceae) in India. Damage on leaf tissue causes stress on plants. Hence, this study aims to observe how the three Ludwigia species are trying to cope with the stress caused by feeding of A. cyanea adults at different time intervals. Uninfested L. adscendens , L. parviflora , and L. octovalvis , and each Ludwigia species on which 5 adult A. cyanea females had fed on continuously for 6 h or 48 h were used for collection of leaf tissues. The amounts of total ROS, H 2 O 2 , activity of enzymatic antioxidants [superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), activity of peroxidases towards phenolic substances {guaiacol peroxidase (GPX) and pyrogallol peroxidase (PPX)}, and ascorbate peroxidase (APOX)] and non-enzymatic antioxidants (phenolics and thiols) were estimated from leaf tissues of undamaged and insect damaged Ludwigia species using standard protocols. The amounts of total ROS and H 2 O 2 were higher in each Ludwigia species after 48 h feeding by A. cyanea followed by plants after 6 h feeding by A. cyanea and undamaged plants. The activities of antioxidant enzymes such as CAT, SOD, GST, APOX, PPX, and GPX were higher in each Ludwigia species after 48 h feeding by A. cyanea compared to undamaged plants. Total proteins and thiols were higher in each undamaged Ludwigia species compared to insect damaged plants; whereas total phenols were higher in each insect damaged Ludwigia species compared to undamaged plants. Higher amounts of total ROS and H 2 O 2 in each insect damaged Ludwigia species compared to undamaged plants suggested that A. cyanea feeding resulted stress in the insect damaged plants. Higher amounts of CAT, SOD, GST, and APOX in insect damaged Ludwigia species compared to undamaged plants suggested that these four enzymes were acting as antioxidants to reduce the stress created in plants due to insect herbivory. [ABSTRACT FROM AUTHOR] more...
- Published
- 2019
- Full Text
- View/download PDF
9. The complete chloroplast genome sequence of Ludwigia adscendens (L.) Hara, 1953 (Onagraceae).
- Author
-
Shen J, Wan X, and Xiao J
- Abstract
Ludwigia adscendens (L.) Hara, 1953 ( L. adscendens ) belongs to the family Onagraceae, which is a traditional medicinal plant distributed worldwide. In this study, the first complete chloroplast genome of L. adscendens was sequenced and assembled. The assembled chloroplast genome of L. adscendens is 159,560 bp in length, containing a pair of inverted repeat region A (IRA) of 24,762 bp, inverted repeat region B (IRB) of 24,762 bp, separated by a large single-copy (LSC) sequence of 90,276 bp and a small single-copy (SSC) region of 19, 760 bp, respectively. A total of 129 genes were annotated in the entire chloroplast genome, consisting of 37 transfer RNA (tRNA) genes, 8 ribosomal RNA (rRNA) genes, and 84 protein-coding genes, with a total GC content of 37.27%. The phylogenomic analysis showed that L. adscendens was closely related to L. octovalvis in the Onagraceae family. Further evolutionary studies of the genus Ludwigia could benefit from the complete chloroplast genome of L. adscendens present in this study and the obtained results would provide useful information for future phylogenetic, taxonomic, and evolutionary studies on Onagraceae., Competing Interests: No potential conflict of interest was reported by the author(s)., (© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.) more...
- Published
- 2023
- Full Text
- View/download PDF
10. Tropical macrophytes promote phytoplankton community shifts in lake mesocosms: relevance for lake restoration in warm climates
- Author
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Darren C. J. Yeo, Joy Lu, Daniel L. Roelke, Simon M. Mitrovic, Hugh T. W. Tan, Yiluan Song, Maxine A. D. Mowe, and Darren Z. H. Sim
- Subjects
biology ,Ecology ,Microcystis ,Phytoplankton ,Temperate climate ,Environmental science ,Green algae ,Aquatic Science ,biology.organism_classification ,Vallisneria spiralis ,Ludwigia adscendens ,Mesocosm ,Macrophyte - Abstract
Macrophytes can be crucial for maintaining clear water conditions in temperate shallow lakes. However, their restorative potential and role in regulating phytoplankton remains uncertain in tropical lakes. We investigated the effects of emergent (Ludwigia adscendens and Persicaria barbata) and submerged (Vallisneria spiralis) macrophytes on the phytoplankton community of a turbid tropical reservoir. Through two in situ mesocosm experiments (~ 1000 l capacity) lasting 4 weeks, we (1) determined the effects of macrophyte density on phytoplankton biomass and composition, and (2) compared these effects between emergent and submerged macrophytes. In Experiment 1, macrophyte treatments reduced phytoplankton biomass and increased water clarity in a density-dependent manner. Only the ‘high density’ treatment (300 g/m2 emergent and 650 g/m2 submerged macrophytes) induced a taxonomic and functional shift from an initial community dominated by turbid water-adapted filamentous cyanobacteria to one dominated by clear water-adapted green algae and cryptophytes. In Experiment 2, emergent and submerged macrophytes reduced phytoplankton biomass and distinctly altered taxonomic and functional composition, with submerged macrophytes inhibiting Microcystis and stimulating cryptophyte taxa. Our results indicate that macrophytes can induce substantial phytoplankton community shifts in turbid tropical lakes, demonstrating the potential to assist in the reversal from turbid to clear water states during restoration efforts. more...
- Published
- 2021
- Full Text
- View/download PDF
11. Ludwigia adscendens subsp. diffusa P. H. Raven
- Author
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Monteiro, Francisca, Costa, Esperança Da, Kissanga, Raquel, Costa, José Carlos, and Catarino, Luís
- Subjects
Tracheophyta ,Magnoliopsida ,Myrtales ,Ludwigia adscendens subsp. diffusa (forssk.) p.h.raven ,Ludwigia adscendens ,Biodiversity ,Plantae ,Onagraceae ,Ludwigia ,Taxonomy - Abstract
Ludwigia adscendens subsp. diffusa (Forssk.) P.H.Raven Bas.: Jussiaea diffusa Forssk. Prostrate annual herb, in river and pond margins and beds., Published as part of Monteiro, Francisca, Costa, Esperança Da, Kissanga, Raquel, Costa, José Carlos & Catarino, Luís, 2022, An annotated checklist of the vascular flora of Quiçama National Park, Angola, pp. 1-67 in Phytotaxa 557 (1) on page 44, DOI: 10.11646/phytotaxa.557.1.1, http://zenodo.org/record/6985699 more...
- Published
- 2022
- Full Text
- View/download PDF
12. Potential allelopathic effects of Ludwigia adscendens L. on the seed germination and seedung growth of rice
- Author
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Mukherjee, Abhishek and Barik, Anandamay
- Published
- 2013
13. Ludwigia adscendens subsp. diffusa P. H. Raven
- Author
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Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan, and Wang, Qing-Feng
- Subjects
Tracheophyta ,Magnoliopsida ,Myrtales ,Ludwigia adscendens ,Biodiversity ,Ludwigia adscendens (l.) h.hara subsp. diffusa (forssk.) p.h.raven ,Plantae ,Onagraceae ,Ludwigia ,Taxonomy - Abstract
Ludwigia adscendens (L.) H.Hara subsp. diffusa (Forssk.) P.H.Raven — Habit: Herb. Habitat: LMWF, LMDF; up to 2 000 m. Distribution: II. Voucher: Lake Nkunga, Alt. 1 903 m, 8 Aug. 2015, SAJIT 003845 (HIB). Reference: Fries & Fries (1925)., Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 59, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464, {"references":["Fries, R. E. & Fries, T. C. E. (1925) Beitrage zur Kenntnis der Flora des Kenia, Mt. Aberdare und Mt. Elgon. VII. Notizblatt des Koniglichen Botanischen Gartens und Museums zu Berlin 9 (85): 299 - 333. https: // doi. org / 10.2307 / 3994384"]} more...
- Published
- 2022
- Full Text
- View/download PDF
14. Allelopathic Potential of Ludwigia Adscendens (L.) on Germination and Seedling Growth of Greengram, Vigna Radiata (L.) Cultivated After Rice
- Author
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Roy, N. and Barik, A.
- Published
- 2010
15. Consortium of Marsilea crenata and Ludwigia adscendens for Linear Alkylbenzene Sulfonate Detergent Phytoremediator
- Author
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Ahmad Bashri, Mahanani Tri Asri, I.A. Pratiwi, Yuliani, and Fida Rachmadiarti
- Subjects
Linear alkylbenzene sulfonate ,biology ,Chemistry ,Botany ,biology.organism_classification ,Pollution ,Ludwigia adscendens ,Water Science and Technology ,Marsilea crenata - Published
- 2020
- Full Text
- View/download PDF
16. Age-stage, two-sex life table of the biocontrol agent, Altica cyanea on three Ludwigia species
- Author
-
Saubhik Mitra, Syed Husne Mobarak, and Anandamay Barik
- Subjects
0106 biological sciences ,0301 basic medicine ,Larva ,biology ,Biological pest control ,Onagraceae ,Cell Biology ,Plant Science ,biology.organism_classification ,Fecundity ,01 natural sciences ,Biochemistry ,Ludwigia adscendens ,03 medical and health sciences ,030104 developmental biology ,Botany ,Cyanea (plant) ,Genetics ,Animal Science and Zoology ,Population dynamics ,Molecular Biology ,Ecology, Evolution, Behavior and Systematics ,Altica ,010606 plant biology & botany - Abstract
Altica cyanea (Weber, 1801) (Coleoptera: Chrysomelidae) is a biocontrol agent of Onagraceae rice-field weeds, Ludwigia adscendens (L.) Hara, L. parviflora Roxb. and L. octovalvis (Jacq.) Raven in India. Hence, it is relevant to study the life history traits and population growth of A. cyanea on three Ludwigia species using age-stage, two-sex life table. The nutritional and antinutritional contents from leaves of the Ludwigia species were measured to comment on the role of nutrients and antinutrients on growth, development and fecundity of A. cyanea. Total larval developmental time was the shortest on L. adscendens (17.78 ± 0.22 days), intermediate on L. parviflora (20.35 ± 0.24 days) and the longest on L. octovalvis (21.98 ± 0.24 days). Total fecundity was the highest on L. adscendens (147.22 ± 4.74 eggs/female) followed by L. parviflora (119.28 ± 4.70 eggs/female) and the lowest on L. octovalvis (89.62 ± 3.45 eggs/female). The intrinsic rate of increase (r) ranged from 0.0639 to 0.0875 d− 1, which was the lowest on L. octovalvis and the highest on L. adscendens. Population projection indicates that the population growth would be the fastest on L. adscendens and the slowest on L. octovalvis. The nutrients (lipids, amino acids and nitrogen) and antinutrients (tannins) were higher and lower, respectively, in L. adscendens than the other two Ludwigia species, which influenced faster larval development, higher adult longevity and greater fecundity of A. cyanea on L. adscendens. This study suggested that mass release of A. cyanea could be applied in biocontol program of these three Ludwigia weeds. more...
- Published
- 2020
- Full Text
- View/download PDF
17. Attraction of the potential biocontrol agent Altica cyanea by volatile compounds of three species of Ludwigia weeds from rice fields
- Author
-
Anandamay Barik, Saubhik Mitra, Swati Das, and Amarnath Karmakar
- Subjects
Ludwigia octovalvis ,Methyl jasmonate ,biology ,Biological pest control ,Onagraceae ,biology.organism_classification ,Ludwigia adscendens ,chemistry.chemical_compound ,Olfactometer ,chemistry ,Insect Science ,Botany ,Cyanea (plant) ,Ecology, Evolution, Behavior and Systematics ,Altica - Abstract
Ludwigia adscendens (L.) Hara, Ludwigia parviflora Roxb., and Ludwigia octovalvis (Jacq.) Raven (Onagraceae) are abundant weeds in rice fields in India. These weeds compete with rice for resources in fields and this results in reduction of grain yield. Altica cyanea (Weber) (Coleoptera: Chrysomelidae) is a biocontrol agent of the three rice‐field weeds. Hence, it is relevant to study host preference of A. cyanea using volatile cues of these three weeds. Therefore, we attempted to identify volatiles from leaves of the three Ludwigia species attracting A. cyanea, which could be used as an attractant during early emergence of the weeds in rice fields. In Y‐tube olfactometer assays, A. cyanea females were more attracted to natural volatiles of plants after 48 h of feeding by adults than to volatiles of undamaged plants. The volatile organic compounds from undamaged plants, and plants after 6 and 48 h of feeding by A. cyanea were identified and quantified by gas chromatography and mass spectrometry (GC–MS) and GC‐flame ionization detection (FID), respectively. In total, 25, 29, and 29 volatile compounds were detected in headspaces of undamaged L. adscendens, L. parviflora, and L. octovalvis, respectively, whereas 32, 35, and 34 compounds, respectively, were detected after 48 h of feeding by A. cyanea. Methyl jasmonate predominated among the volatile compounds in all treatments, but this compound was not attractive to A. cyanea. Females were attracted by synthetic blends of 3‐hexanol, α‐pinene, linalool oxide, and phytol in amounts mimicking those in each of the three Ludwigia species after 48 h of feeding by A. cyanea. The blends mimicking L. adscendens and L. parviflora included geraniol, whereas the blend mimicking L. parviflora also included 1‐tridecanol. These synthetic blends may be helpful to monitor A. cyanea in biocontrol programmes. more...
- Published
- 2020
- Full Text
- View/download PDF
18. Activities of antioxidant enzymes in three species of Ludwigia weeds on feeding by Altica cyanea
- Author
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Saubhik Mitra, Anandamay Barik, Amarnath Karmakar, and Syed Husne Mobarak
- Subjects
Multidisciplinary ,Antioxidant ,biology ,medicine.medical_treatment ,fungi ,food and beverages ,Onagraceae ,02 engineering and technology ,010501 environmental sciences ,021001 nanoscience & nanotechnology ,biology.organism_classification ,01 natural sciences ,Ludwigia adscendens ,Superoxide dismutase ,Catalase ,Botany ,Cyanea (plant) ,biology.protein ,medicine ,0210 nano-technology ,Altica ,0105 earth and related environmental sciences ,Peroxidase - Abstract
Objectives Altica cyanea (Weber) (Coleoptera: Chrysomelidae) is a potential biocontrol agent of rice-field weeds, Ludwigia adscendens (L.) Hara, L. parviflora Roxb., and L. octovalvis (Jacq.) Raven (Onagraceae) in India. Damage on leaf tissue causes stress on plants. Hence, this study aims to observe how the three Ludwigia species are trying to cope with the stress caused by feeding of A. cyanea adults at different time intervals. Materials Uninfested L. adscendens, L. parviflora, and L. octovalvis, and each Ludwigia species on which 5 adult A. cyanea females had fed on continuously for 6 h or 48 h were used for collection of leaf tissues. The amounts of total ROS, H2O2, activity of enzymatic antioxidants [superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST), activity of peroxidases towards phenolic substances {guaiacol peroxidase (GPX) and pyrogallol peroxidase (PPX)}, and ascorbate peroxidase (APOX)] and non-enzymatic antioxidants (phenolics and thiols) were estimated from leaf tissues of undamaged and insect damaged Ludwigia species using standard protocols. Results The amounts of total ROS and H2O2 were higher in each Ludwigia species after 48 h feeding by A. cyanea followed by plants after 6 h feeding by A. cyanea and undamaged plants. The activities of antioxidant enzymes such as CAT, SOD, GST, APOX, PPX, and GPX were higher in each Ludwigia species after 48 h feeding by A. cyanea compared to undamaged plants. Total proteins and thiols were higher in each undamaged Ludwigia species compared to insect damaged plants; whereas total phenols were higher in each insect damaged Ludwigia species compared to undamaged plants. Conclusions Higher amounts of total ROS and H2O2 in each insect damaged Ludwigia species compared to undamaged plants suggested that A. cyanea feeding resulted stress in the insect damaged plants. Higher amounts of CAT, SOD, GST, and APOX in insect damaged Ludwigia species compared to undamaged plants suggested that these four enzymes were acting as antioxidants to reduce the stress created in plants due to insect herbivory. more...
- Published
- 2019
- Full Text
- View/download PDF
19. Comparative study of six emergent macrophyte species for controlling cyanobacterial blooms in a tropical reservoir
- Author
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Simon M. Mitrovic, Darren C. J. Yeo, Darren Z. H. Sim, Hugh T. W. Tan, Yiluan Song, Joy Lu, and Maxine A. D. Mowe
- Subjects
Chlorophyll a ,Environmental Engineering ,Cylindrospermopsis ,04 agricultural and veterinary sciences ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Biology ,biology.organism_classification ,01 natural sciences ,Algal bloom ,Ludwigia adscendens ,Macrophyte ,chemistry.chemical_compound ,chemistry ,Aquatic plant ,Chlorophyll ,Phytoplankton ,Botany ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,0105 earth and related environmental sciences ,Nature and Landscape Conservation - Abstract
Interactions between macrophytes and phytoplankton have been studied extensively in temperate water bodies, but far less attention has been paid to those for emergent macrophytes in the tropics. We investigated the effects of six emergent macrophyte species (Brachiaria mutica, Ipomoea aquatica, Sphagneticola trilobata, Ludwigia adscendens, Pandanus amaryllifolius and Persicaria barbata) on the phytoplankton community of a tropical reservoir using ex situ experiments with multiple planting densities (Treatment 1: 0.108, Treatment 2: 0.24, Treatment 3: 0.40, Treatment 4: 0.58 g dry weight L−1) in 100-L mesocosms. Chlorophyll a (as a proxy of total phytoplankton biomass) and phytoplankton community structure were examined. The initial phytoplankton community (average chlorophyll a: 20.36 ± 0.69 µg L−1) was dominated by cyanobacteria: Planktolyngybya, Pseudanabaena and Cylindrospermopsis (average relative biovolume 0.68 ± 0.03). Over four weeks, L. adscendens (Treatments 3 and 4) and P. barbata (Treatments 2 to 4) significantly reduced chlorophyll a concentrations by 3.29–6.69 µg L−1 compared to the controls. Comparing species effects over four weeks for Treatment 4, P. barbata significantly lowered chlorophyll a concentrations compared to I. aquatica while there were no significant differences between all other species. All treatments of L. adscendens and P. barbata significantly reduced the relative biovolume of cyanobacteria in the phytoplankton communities by 0.19–0.39 compared to the controls. The highest-density treatments of all six macrophyte species led to significant shifts in the phytoplankton community structure by reducing the relative abundance of filamentous cyanobacteria (Planktolyngbya, Pseudanabaena) and/or increasing the relative abundance of cryptomonads (Chroomonas, Rhodomonas). This study shows the potential of emergent macrophyte species, especially L. adscendens and P. barbata, to reduce total phytoplankton biomass and cyanobacterial dominance in tropical water bodies, and a range of plant densities which were effective. more...
- Published
- 2019
- Full Text
- View/download PDF
20. Purification Efficiency of Three Combinations of Native Aquatic Macrophytes in Artificial Wastewater in Autumn
- Author
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Chen Siyu, Dongming Liu, Fu-Wu Xing, Xu Lei, Dongsheng Xie, Ping Zhuang, Xinsheng Qin, Faguo Wang, Yu Xiaoling, and Zhian Li
- Subjects
China ,purification efficiency ,aquatic plants ,Nitrogen ,Health, Toxicology and Mutagenesis ,0208 environmental biotechnology ,nitrogen and phosphorus ,02 engineering and technology ,Wastewater ,010501 environmental sciences ,01 natural sciences ,Article ,Water Purification ,Nutrient ,Monochoria vaginalis ,Aquatic plant ,Ecosystem ,0105 earth and related environmental sciences ,Typha orientalis ,biology ,Chemistry ,Chemical oxygen demand ,Public Health, Environmental and Occupational Health ,Phosphorus ,biology.organism_classification ,Ludwigia adscendens ,020801 environmental engineering ,Macrophyte ,Horticulture ,Medicine ,Water quality - Abstract
Water pollution caused by excessive nutrient and biological invasion is increasingly widespread in China, which can lead to problems with drinking water as well as serious damage to the ecosystem if not be properly treated. Aquatic plant restoration (phytoremediation) has become a promising and increasingly popular solution. In this study, eight native species of low-temperature-tolerant aquatic macrophytes were chosen to construct three combinations of aquatic macrophytes to study their purification efficiency on eutrophic water in large open tanks during autumn in Guangzhou City. The total nitrogen (TN) removal rates of group A (Vallisneria natans + Ludwigia adscendens + Monochoria vaginalis + Saururus chinensis), group B (V. natans + Ipomoea aquatica + Acorus calamus + Typha orientalis), and group C (V. natans + L. adscendens + Schoenoplectus juncoides + T. orientalis) were 79.10%, 46.39%, and 67.46%, respectively. The total phosphorus (TP) removal rates were 89.39%, 88.37%, and 91.96% in groups A, B, and C, respectively, while the chemical oxygen demand (COD) removal rates were 93.91%, 96.48%, and 92.78%, respectively. In the control group (CK), the removal rates of TN, TP, and COD were 70.42%, 86.59%, and 87.94%, respectively. The overall removal rates of TN, TP, and COD in the plant groups were only slightly higher than that in CK group, which did not show a significant advantage. This may be related to the leaf decay of some aquatic plants during the experiment, whereby the decay of V. natans was the most obvious. The results suggest that a proper amount of plant residue will not lead to a significant deterioration of water quality. more...
- Published
- 2021
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21. Edible freshwater macrophytes: a source of anticancer and antioxidative natural products-a mini-review.
- Author
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Chai, Tsun-Thai, Ooh, Keng-Fei, Quah, Yixian, and Wong, Fai-Chu
- Abstract
Edible freshwater macrophytes (EFM) are edible, macroscopic freshwater plants, many of which are also used as traditional/folk medicine. This mini-review highlights phytochemical and pharmacological evidence pertaining to anticancer and antioxidative natural products derived from EFM, with special attention to Centella asiatica (Indian pennywort), Nelumbo nucifera (sacred lotus), Nasturtium officinale (watercress), Ipomoea aquatica (water spinach) and Ludwigia adscendens (water primrose). Current knowledge gaps and further research opportunities are also discussed. EFM is a promising source of anticancer and antioxidative natural products which warrants more extensive exploration. More research is needed before such natural products can be exploited for application in food and medicine. [ABSTRACT FROM AUTHOR] more...
- Published
- 2015
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22. Jumlah trakea pada daun Ludwigia adscendens (L.) Hara dalam kondisi tergenang: sebuah gejala plastisitas anatomi
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Joko Budiono
- Subjects
Ludwigia adscendens ,Waterogging ,Trachea ,Science ,Biology (General) ,QH301-705.5 - Abstract
This study was conducted to reveal the influence of waterlogging on the number of tracheas in each vascular bundle of Ludwigia adscendens (L.) Hara leaf. This plant is well known as aquatic weed which can grow floating on water surface. The leaf primordium extend across the water from 10-15 cm below water surface. The plant was grown in aquarium at 0, 10 and 15 cm water depth. The observed leaves were first, third and fifth the base. Anatomical structure were analyzed using serial cross sections of he leaf the cross section were made by paraffin method. The data were analyzed using ANOVA and DMRT method. The result showed that significance difference on the number of tracheas in each vascular bundle were found among leaves of different depth. more...
- Published
- 1999
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23. Weed control efficiency and productivity in rice-fish-duck integrated farming system
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Koroda rajsekhar Rao, Anjani Kumar, P.K. Nayak, Munda S, Upendra Kumar, Bhavani S. Satpathy, B. B. Panda, Sunil Kumar Das, and Amaresh Kumar Nayak
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Cyperus iria ,biology ,Cyperus difformis ,Agronomy ,Integrated farming ,Fimbristylis miliacea ,Ceratophyllum demersum ,Aquatic Science ,biology.organism_classification ,Weed ,Weed control ,Ludwigia adscendens - Abstract
Rice farming integrated with fish and ducks potentially provides ecological services and supports effective management of weeds which cause rice yield losses due to growth competitiveness with the available resources and productivity. Present study investigated the efficacy of integrating fish and duck in rice farming for controlling weed infestations and their impacts on productivity and economics of the system. Appraisal on diversity of weeds indicated that grassy weeds ( Echinochola colona, Echinochola crusgalli) and sedges ( Cyperus difformis, Cyperus iria, Fimbristylis miliacea ) were prevalent in rice during tillering stages, while broad leaf ( Ludwigia adscendens, Sphenoclea zeylanica) and aquatic weeds ( Marsilia quadrifolia, Otellia alismoides, Vallisneria spiralis, Limnophila indica, Ceratophyllum demersum, Hydrilla verticillata ) were abundant during active tillering and panicle initiation stages of rice. A significant reduction in weed density and weed biomass was observed in rice-fish (RF), rice-duck (RD) and rice-fish - duck (RFD) integration. However, weed control efficiency (WCE %) was significantly (p more...
- Published
- 2020
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24. Phytodesalination of saline water using Ipomoea aquatica, Alternanthera philoxeroides and Ludwigia adscendens
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Md. Saiful Islam, M. Md. L. Hosen, and Md. Nizam Uddin
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Environmental Engineering ,biology ,Sodium ,Ipomoea aquatica ,Xylem ,chemistry.chemical_element ,010501 environmental sciences ,biology.organism_classification ,Saline water ,01 natural sciences ,Ludwigia adscendens ,food.food ,Salinity ,Horticulture ,food ,chemistry ,Alternanthera philoxeroides ,Halophyte ,Environmental Chemistry ,General Agricultural and Biological Sciences ,0105 earth and related environmental sciences - Abstract
A hydroponic experiment has been conducted for desalination of saline water by culturing Ipomoea aquatica, Alternanthera philoxeroides and Ludwigia adscendens at 0–7 dS m−1 salinity level. Water samples were collected at 15-day interval, and the plants were harvested after 45 days. They were separated into root, stem and leaf. EC value decreased in water with increasing time for all halophytes. Root and leaf contain higher amounts of sodium as compared with those of stem. The highest accumulation of sodium was found in the root of A. philoxeroides (145.63 g kg−1); however, I. aquatic has high phytodesalination capacity (130 kg Na+ ha−1) due to high productivity than A. philoxeroides (105 kg Na+ ha−1) and L. adscendens (80 kg Na+ ha−1). Bio-concentration factors (56.10–80.29) and translocation factor values (˃ 1) indicated that these halophytes were good sodium accumulator. Sodium adsorption ration values lied between 16.8–18 at 3 dS m−1 and 20–25.5 at 5 and 7 dS m−1 showed that these halophytes improved the water quality for irrigation. Anatomical variation from microscopic cellular images illustrated that spongy mesophyll cells along with sub-stomatal cells in leaf and xylem vessels along with vacuolar sequestration might be responsible for Na accumulation in the stem of these halophytes. more...
- Published
- 2018
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25. Analgesic effects of ethanolic leaf extract of Ludwigia adscendens (L.) H. Hara over selective drugs in in vivo
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A. N. M. Shofi Uddin, M. F. Mazid, S. Azad, and G. M. M. Murshid
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Traditional medicine ,In vivo ,Analgesic ,Biology ,Ludwigia adscendens - Published
- 2018
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26. Chemical constituents from Ludwigia adscendens
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Shilpi, Jamil A., Gray, Alexander I., and Seidel, Véronique
- Published
- 2010
- Full Text
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27. Uptake and Growth Effects of Cyanotoxins on Aquatic Plants Ludwigia Adscendens and Amaranthus Hybridus in Raw Surface Waters
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Glynn K. Pindihama and Mugera W. Gitari
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021110 strategic, defence & security studies ,biology ,Chemistry ,Amaranthus hybridus ,0211 other engineering and technologies ,02 engineering and technology ,010501 environmental sciences ,biology.organism_classification ,01 natural sciences ,Ludwigia adscendens ,Aquatic plant ,Botany ,0105 earth and related environmental sciences ,General Environmental Science - Published
- 2017
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28. Biomonitoring of Heavy Metals Level in Wetland Plants of Lagos Lagoon, Nigeria
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K. L. Njoku, Adeola Alex Adesuyi, M. O. Akinola, and A.O. Jolaoso
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Pollution ,biology ,Chemistry ,Sagittaria sagittifolia ,media_common.quotation_subject ,04 agricultural and veterinary sciences ,010501 environmental sciences ,biology.organism_classification ,01 natural sciences ,Ludwigia adscendens ,Commelina benghalensis ,Horticulture ,Bioaccumulation ,Shoot ,Biomonitoring ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,wetland plants, heavy metals, biomonitoring, bioaccumulation capacity, translocation factor ,Paspalum vaginatum ,0105 earth and related environmental sciences ,media_common - Abstract
The purpose of this research was to monitor the distribution of Cd, Cr, Cu, Ni, Pb and Zn in plants of Lagos lagoon wetlands in Nigeria. Water, soil and dominant plants were collected from 46 sampling points for a period of 1 year and analysed using ICP-AES. The order of heavy metals presence in soil samples was as follow: Zn>Cr>Cu>Pb>Cd>Ni. The Zn concentration was the highest whereas the lowest concentration was Ni. All water samples showed varying degrees of contamination across all the sampling points in these wetlands. A greater percentage of all metals concentration for Pb, Cd, Cr and Ni were higher than the permissible limit set by World Health Organisation. Pb ranged from 0.01±0.00 to 0.91±0.04 mg/L, Cd from 0.01±0.00 to 0.31±0.02 mg/L, Cr from 0.05±0.00 to 1.15±0.01 mg/L, Ni from 0.01±0.00 to 0.52±0.03, Cu from 0.21±0.01 to 1.11±0.01 mg/L and Zn ranged from 0.15±0.00 to 10.28±0.02 mg/L. The median values of each metal that the shoots and roots of individual plants accumulated metals in the order: Zn>Cu>Pb>Cr>Ni>Cd. Ipomea aquatica had the highest concentration of Pb in its shoot (1.12 mg/kg) while Ludwigia adscendens had the least (1.12 mg/kg) in its shoot. Pb level in the roots was highest in Eichonia crassipes (5.69 mg/kg). The highest level of Cr in shoot (2.23 mg/kg) and root (5.41 mg/kg) was observed in Commelina benghalensis while Cr concentration is lowest in the shoot (0.04 mg/kg) and root (0.18 mg/kg) of Althernathera philoxerrides. Ludwigia adscendens had the lowest concentration of Ni in its root (0.01 mg/kg). The highest shoot concentration of Cu (4.21 mg/kg) was observed in Eichonia crassipes while Ipomea aquatica had the lowest concentration in its shoot (0.23 mg/kg). Paspalum vaginatum’s root had the highest Cu concentration (12.32 mg/kg) while lowest concentration of Cu was observed in the root of Sagittaria sagittifolia (0.69 mg/kg). Transfer factors for most of the plants species were less than 1, indicating that metals accumulated by these plants were largely retained in the roots. A. philoxerrides had translocation factor greater than one for Ni (10.30), while for Cr was 1.25 and 1.40. This present findings indicate that, despite ecological similarities, the different plant species tend to respond differently to exposure to heavy metals and also in their ability to accumulate the various metals. Thus, heavy metals sequestration from the soil to these plants characterized them as metals pollution indicators.Keywords: wetland plants, heavy metals, biomonitoring, bioaccumulation capacity, translocation factor more...
- Published
- 2018
29. Effect of water level fluctuation frequency on Alternanthera philoxeroides, Myriophyllum aquaticum and Ludwigia adscendens in autumn
- Author
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Chen Xiu-Wen, Yu Dan, and Liu Chun-Hua
- Subjects
0106 biological sciences ,Biomass (ecology) ,Ecology ,010604 marine biology & hydrobiology ,Water level fluctuation ,Myriophyllum aquaticum ,Plant Science ,Biology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Ludwigia adscendens ,Water level ,Horticulture ,Alternanthera philoxeroides ,Aquatic plant ,Botany ,Shoot ,Ecology, Evolution, Behavior and Systematics - Abstract
Aims In wetlands, water levels can fluctuate, which often disturbs local organisms, such as aquatic plants. The responses of Alternanthera philoxeroides, Myriophyllum aquaticum, and Ludwigia adscendens to water level fluctuations of different frequencies were examined here. Methods Water level fluctuations were simulated at four frequencies: static (0 frequency), one cycle (1 fre- quency), two cycles (2 frequency), and four cycles (4 frequency), and with fluctuation amplitudes (± 25 cm) dur- ing a 60 day experiment. Morphological and physiological traits of plants, including branching number, shoot length, total biomass, shoot root ratio, chlorophyll content, and maximum PSII quantum efficiency (Fv/Fm) were assessed. Important findings Water level fluctuation was found to have no significant impact on branching number, root shoot ratio, or Fv/Fm of A. philoxeroides, but all scenarios except 1 frequency were significantly associated with longer shoots and lower total biomass and chlorophyll content. The traits of M. aquaticum showed different re- sponses to water level fluctuation: branching number and Fv/Fm showed no changes, but shoot length (2 fre- quency) and root shoot ratio (1 and 4 frequency) increased significantly, and total biomass and chlorophyll content (expect 4 frequency) decreased. In L. adscendens, water level fluctuation was associated with lower branching number in all scenarios except 2 frequency, shoot length in all scenarios except 1 and 2 frequency, total biomass in all scenarios except 2 frequency, and chlorophyll content but had no significant effects on root shoot ratio or more...
- Published
- 2016
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30. Crude protein electrophoresis of Ludwigia (L.) species in Nigeria and its taxonomic implications
- Author
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K. F. Adelalu and A. E. Folorunso
- Subjects
Ludwigia octovalvis ,biology ,Chemotaxonomy ,Botany ,Ludwigia decurrens ,Taxonomy (biology) ,General Medicine ,Protein abundance ,Gel electrophoresis of proteins ,biology.organism_classification ,Ludwigia hyssopifolia ,Ludwigia adscendens - Abstract
Leaves of nine species of Ludwigia were collected from Southwestern Nigeria and the crude proteins were extracted and analysed by electrophoretic fractionation. The results shows that Ludwigia octovalvis var linearis, Ludwigia octovalvis var brevisepala, Ludwigia hyssopifolia and Ludwigia abyssinica are more closely related based on the position of protein bands. Also, Ludwigia decurrens A and Ludwigia adscendens subsp. diffusa are more closely related based on the number of band and the position of band. The band at 2.1 is taxonomic for all the species of Ludwigia studied. Similarly, the band at 1.0 delimits L. leptocarpa from the other species. Protein abundance sequence of the samples is in the order L. hyssopifolia Eƒ L. octovalvis var linearis Eƒ L. abyssinica Eƒ L. octovalvis var brevisepala Eƒ L. erecta Eƒ L. decurrens B Eƒ L. leptocarpa Eƒ L. decurrens A Eƒ L. adscendens subsp. diffusa. The occurrence of a new band in Ludwigia decurrence B separates it from Ludwigia decurrence A, a new hypothetical name is suggested for the delimitation of the two species. The protein bands are taxonomically distinct as no two species have the same band distribution; diagnostic bands which could be employed for the identification of each species are also reported. Key words: Ludwigia, protein bands distribution, taxonomic implication, Nigeria. more...
- Published
- 2015
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31. Edible freshwater macrophytes: a source of anticancer and antioxidative natural products—a mini-review
- Author
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Tsun-Thai Chai, Fai-Chu Wong, Yixian Quah, and Keng-Fei Ooh
- Subjects
Centella ,Ipomoea aquatica ,Lotus ,Nasturtium officinale ,Plant Science ,Biology ,biology.organism_classification ,Ludwigia adscendens ,food.food ,Macrophyte ,Watercress ,food ,Phytochemical ,Botany ,Biotechnology - Abstract
Edible freshwater macrophytes (EFM) are edible, macroscopic freshwater plants, many of which are also used as traditional/folk medicine. This mini-review highlights phytochemical and pharmacological evidence pertaining to anticancer and antioxidative natural products derived from EFM, with special attention to Centella asiatica (Indian pennywort), Nelumbo nucifera (sacred lotus), Nasturtium officinale (watercress), Ipomoea aquatica (water spinach) and Ludwigia adscendens (water primrose). Current knowledge gaps and further research opportunities are also discussed. EFM is a promising source of anticancer and antioxidative natural products which warrants more extensive exploration. More research is needed before such natural products can be exploited for application in food and medicine. more...
- Published
- 2015
- Full Text
- View/download PDF
32. Molecular docking studies on InhA, MabA and PanK enzymes from Mycobacterium tuberculosis of ellagic acid derivatives from Ludwigia adscendens and Trewia nudiflora
- Author
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Shilpi, Jamil A., Ali, Mohammad Tuhin, Saha, Sanjib, Hasan, Shihab, Gray, Alexander I., and Seidel, Véronique
- Published
- 2015
- Full Text
- View/download PDF
33. Pengaruh Dosis Herbisida Ethoxysulfuron 15 WG Terhadap Gulma, Pertumbuhan Dan Hasil Tanaman Padi Varietas Ciherang
- Author
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Dedi Widayat, Aty Fujiaty Setiawan, and Dani Riswandi
- Subjects
Horticulture ,Randomized block design ,Paddy field ,Fimbristylis miliacea ,General Materials Science ,Biology ,Weed ,biology.organism_classification ,Ludwigia adscendens ,Rice plant - Abstract
Weeds in rice fields decrease the quantity and quality of yield. One of the methods used to control weeds is chemical herbicide. The objective of this research was to find out the effective dosages of herbicide Ethoxysulfuron 15 WG on weeds growth as well as growth and yield of rice plants var. Ciherang. This experiment was used Randomized Block Design with seven treatments and four replication. The Ethoxysulfuron doses trated to rice field 6 g/ha, 9 g/ha, 12 g/ha, 15 g/ha and 18 g/ha. The two control treatments were mechanical weeding, and without weeding and herbicide. The experimental result showed that Ethoxusylfuron herbicide with the dosage of 9 g/ha could suppress the growth of weed Ludwigia adscendens, Ludwigia perrenis, Fimbristylis miliacea,other weeds, and total weeds and give a good impact on yield of rice plants. more...
- Published
- 2017
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34. Antibacterial activity of Ludwigia adscendens
- Author
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Ahmed, Firoj, Selim, M.S.T., and Shilpi, J.A.
- Subjects
- *
LUDWIGIA , *PROKARYOTES , *MICROORGANISMS , *MICROBIOLOGY , *BACTERIA - Abstract
Abstract: Methanolic extract of whole plants of Ludwigia adscendens was studied for its antibacterial activity. The extract showed a broad spectrum of antibacterial activity against all the bacteria tested except Stapylococcus aureus. [Copyright &y& Elsevier] more...
- Published
- 2005
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35. Chemical constituents from Ludwigia adscendens
- Author
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Veronique Seidel, Jamil A. Shilpi, and Alexander I. Gray
- Subjects
Hexane ,chemistry.chemical_compound ,Chemistry ,Chemical constituents ,Organic chemistry ,Biochemistry ,Ludwigia adscendens ,Ecology, Evolution, Behavior and Systematics - Abstract
Air-dried powdered L. adscendens (931 g) was Soxhlet extracted, successively with n-hexane, EtOAc and MeOH. Vacuum liquid chromatography of the hexane extract (14 g), using a hexane-CHCl3 gradient (100:0-0:100) yielded 11 fractions. more...
- Published
- 2010
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36. Effects of macrophytes on feeding and life-history traits of the invasive apple snailPomacea canaliculata
- Author
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Jian-Wen Qiu and King Lun Kwong
- Subjects
Eichhornia crassipes ,biology ,fungi ,Myriophyllum aquaticum ,Snail ,Aquatic Science ,biology.organism_classification ,Ludwigia adscendens ,Macrophyte ,Colocasia esculenta ,biology.animal ,parasitic diseases ,Botany ,Pomacea canaliculata ,Pomacea maculata - Abstract
Summary 1. Biological invasions have become a serious threat to ecosystems worldwide. Various factors can contribute to the success of biological invasion. We examined how different macrophyte food affected feeding and life-history traits of the invasive herbivorous snail Pomacea canaliculata, and whether differences in snail life-history traits could explain its successful infestation of agricultural and non-agricultural wetlands in Asia. 2. We tested five cultivated and five wild semi-aquatic macrophytes. Snail daily feeding rate varied substantially with plant species, ranging from 1.3% to 22% of its body mass. Snails fed with four (Amaranthus gangeticus, Apium graveolens dulce, Ipomoea aquatica and Nasturtium officinale) of the five cultivated macrophyte species exhibited high survivorship, fast growth and high fecundity. Snails fed with Colocasia esculenta, however, grew poorly, did not reproduce and eventually died. 3. Of the five wild species (Eichhornia crassipes, Ludwigia adscendens, Murdannia nudiflora, Myriophyllum aquaticum and Polygonum hydropiper), M. nudiflora supported a high snail survival, but snails had slower growth and lower fecundity than those reared on the four palatable cultivated species. Snails fed with L. adscendens grew substantially slower than those fed with M. nudiflora, and produced only a small clutch of eggs. Snails fed with E. crassipes, M. aquaticum and P. hydropiper had very low survivorship, grew very little and did not reproduce. 4. We determined six plant properties and their correlation with the feeding, growth and reproduction of the apple snails. Cultivated macrophytes in general had a higher nutritional value and lower physical and chemical defences. Phenolic content was negatively correlated with snail feeding rate, while plant nitrogen and phosphorus contents were positively correlated with snail egg production and growth, respectively. 5. These results indicate that, due to their higher nutritional value and lower chemical and physical defences, cultivated macrophytes are in general desirable for the apple snail which may partly explain its successful invasion into wet agricultural areas in Asia. This snail may also selectively graze poorly defended wild macrophytes in non-agricultural wetlands, leading to changes in floral diversity and wetland functioning. Management of this and other apple snails with similar life-history traits should thus focus on the prevention of their further spread. more...
- Published
- 2009
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37. Molecular docking studies on InhA, MabA and PanK enzymes from Mycobacterium tuberculosis of ellagic acid derivatives from Ludwigia adscendens and Trewia nudiflora
- Author
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Alexander I. Gray, Jamil A. Shilpi, Shihab Hasan, Veronique Seidel, Mohammad Tuhin Ali, and Sanjib Saha
- Subjects
chemistry.chemical_classification ,2-trans-enoyl-ACP reductase (InhA) ,biology ,INHA ,Coenzyme A ,Protein Data Bank (RCSB PDB) ,Mycobacterium tuberculosis ,Pantothenate kinase (PanK) ,Reductase ,biology.organism_classification ,RS ,chemistry.chemical_compound ,Enzyme ,Biochemistry ,chemistry ,Ellagic acid derivatives ,β-ketoacyl-ACP reductase (MabA) ,Docking (molecular) ,Automotive Engineering ,Ludwigia adscendens ,Trewia nudiflora ,Original Research ,Ellagic acid - Abstract
Purpose There is an urgent need to discover and develop new drugs to combat Mycobacterium tuberculosis, the causative agent of tuberculosis (TB) in humans. In recent years, there has been a renewed interest in the discovery of new anti-TB agents from natural sources. In the present investigation, molecular docking studies were carried out on two ellagic acid derivatives, namely pteleoellagic acid (1) isolated from Ludwigia adscendens, and 3,3′-di-O-methyl ellagic acid 4-O-α-rhamnopyranoside (2) isolated from Trewia nudiflora, to investigate their binding to two enzymes involved in M. tuberculosis cell wall biogenesis, namely 2-trans-enoyl-ACP reductase (InhA) and β-ketoacyl-ACP reductase (MabA), and to pantothenate kinase (PanK type I) involved in the biosynthesis of coenzyme A, essential for the growth of M. tuberculosis. Methods Molecular docking experiments were performed using AutoDock Vina. The crystal structures of InhA, MabA and PanK were retrieved from the RCSB Protein Data Bank (PDB). Isonicotinic-acyl-NADH for InhA and MabA, and triazole inhibitory compound for PanK, were used as references. Results Pteleoellagic acid showed a high docking score, estimated binding free energy of −9.4 kcal/mol, for the MabA enzyme comparable to the reference compound isonicotinic-acyl-NADH. Conclusions Knowledge on the molecular interactions of ellagic acid derivatives with essential M. tuberculosis targets could prove a useful tool for the design and development of future anti-TB drugs. more...
- Published
- 2015
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38. Antibacterial activity of Ludwigia adscendens
- Author
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Firoj Ahmed, Jamil A. Shilpi, and M.S.T. Selim
- Subjects
Pharmacology ,Bacteria ,Plant Stems ,Traditional medicine ,Plant Extracts ,Onagraceae ,Microbial Sensitivity Tests ,General Medicine ,Pharmacognosy ,Biology ,biology.organism_classification ,Ludwigia adscendens ,Anti-Bacterial Agents ,law.invention ,Plant Leaves ,Broad spectrum ,law ,Drug Discovery ,Botany ,Humans ,Phytotherapy ,Antibacterial activity ,Antibacterial agent - Abstract
Methanolic extract of whole plants of Ludwigia adscendens was studied for its antibacterial activity. The extract showed a broad spectrum of antibacterial activity against all the bacteria tested except Stapylococcus aureus. more...
- Published
- 2005
- Full Text
- View/download PDF
39. Ludwigia adscendens H. Hara
- Author
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Jarvis, Charlie
- Subjects
Tracheophyta ,Magnoliopsida ,Myrtales ,Animalia ,Ludwigia adscendens ,Biodiversity ,Onagraceae ,Ludwigia ,Taxonomy - Abstract
Jussiaea repens Linnaeus, Species Plantarum 1: 388. 1753. "Habitat in India." RCN: 3058. Lectotype (Raven in Jarvis & al., Regnum Veg. 127: 58. 1993): [icon] ���Nir-carambu��� in Rheede, Hort. Malab. 2: 99, t. 51. 1679. Generitype of Jussiaea Linnaeus (vide Hitchcock, Prop. Brit. Bot.: 153. 1929). Current name: Ludwigia adscendens (L.) H. Hara (Onagraceae). Note: Brenan (in Turrill & Milne-Redhead, Fl. Trop. E. Africa, Onagraceae: 14. 1953) indicated 552.1 (LINN) as lectotype but this was a post-1753 addition to the herbarium and not original material for the name., Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part J), pp. 599-607 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 606, DOI: 10.5281/zenodo.291971 more...
- Published
- 2007
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40. Ketertarikan Anaxipha longipennis Serville (Orthoptera: Gryllidae) terhadap Beberapa Jenis Gulma di Sawah sebagai Tempat Bertelur
- Author
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Sri Karindah, Ardiyanti Purwaningsih, and Anis Agustin
- Subjects
Anaxipha longipennis ,oviposition sites ,biology ,Leersia hexandra ,rice ,Ageratum conyzoides ,Eleusine indica ,Limnocharis flava ,biology.organism_classification ,Ludwigia adscendens ,Horticulture ,QL1-991 ,Monochoria vaginalis ,Botany ,Fimbristylis miliacea ,Echinochloa colonum ,Zoology ,weed - Abstract
Jengkerik Anaxipha longipennis Serville (Orthoptera: Gryllidae) adalah salah satu predator generalis di habitat sawah yang menyukai telur pelipat daun padi dan serangga-serangga kecil lain seperti wereng-wereng padi. Jengkerik betina menyisipkan telurnya pada batang atau pelepah daun padi dan gulma-gulma di habitat sawah. Tempat bertelur yang disukai akan menjamin keberlanjutan keberadaan jengkerik di habitat sawah. Pada penelitian ini telah dicoba untuk mengetahui jenis gulma yang dipilih sebagai tempat bertelur selain pada tanaman padi. Tujuh belas species gulma dan padi telah dipaparkan pada 5 pasang jengkerik sebagai tempat bertelur pada suatu percobaan memilih secara bebas. Sembilan spesies gulma telah dipilih sebagai tempat bertelur oleh A. longipennis selain padi. Telur diletakkan paling banyak pada padi dan berturut-turut diikuti pada Monochoria vaginalis, Cyperus rotundus, C. iria, Echinochloa colonum, E. crusgalli, Eleusine indica, Fimbristylis miliacea, Imperata cylindrica, dan Limnocharis flava. Sedangkan Alternanthera sessilis, Ludwigia adscen-dens, Commelina diffusa, Leersia hexandra, Leptochloa chinensis, P. repens, Ageratum conyzoides dan Sonchus arvensis tidak dipilih oleh A. longipennis sebagai tempat bertelur. more...
- Published
- 2015
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41. The determination of n-alkanes in the cuticular wax of leaves of Ludwigia adscendens L
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Anandamay Barik, T. C. Banerjee, B. Bhattacharya, and S. Laskar
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Chromatography, Gas ,Thin layer ,Onagraceae ,Plant Science ,Biochemistry ,Analytical Chemistry ,Drug Discovery ,Botany ,Alkanes ,Hexanes ,N alkanes ,Wax ,Chromatography ,biology ,Chemistry ,General Medicine ,biology.organism_classification ,Ludwigia adscendens ,Hydrocarbons ,Plant Leaves ,Complementary and alternative medicine ,visual_art ,Waxes ,visual_art.visual_art_medium ,Molecular Medicine ,Gas chromatography ,Chromatography, Thin Layer ,Long chain ,Food Science - Abstract
An n-hexane extract of fresh, mature leaves of Ludwigia adscendens, containing a thin layer of epicuticular waxes, has been analysed for the first time by TLC, IR and GC using standard hydrocarbons. The leaves contained 22 identified long chain (C15-C36) n-alkanes, accounting for 74.27% of the hydrocarbons present, and an unknown number of unidentified branched chain alkanes. The predominant n-alkane was C25 (11.02%), whilst C18 (7.62%), C20 (6.14%), C29 (5.36%) and C27 (5.29%) n-alkanes were moderately abundant: the C35 homologue was present only in minor amounts (0.22%). more...
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- 2004
42. High performance liquid chromatography profiling of health-promoting phytochemicals and evaluation of antioxidant, anti-lipoxygenase, iron chelating and anti-glucosidase activities of wetland macrophytes
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Keng-Fei Ooh, Tsun-Thai Chai, Nam Weng Sit, Fai-Chu Wong, and H. C. Ong
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antioxidant ,Phytochemistry ,Antioxidant ,high performance liquid chromatography ,Traditional medicine ,Chemistry ,medicine.medical_treatment ,Pharmaceutical Science ,phytochemical ,Ludwigia adscendens ,iron chelating ,chemistry.chemical_compound ,Phytochemical ,anti-lipoxygenase ,Drug Discovery ,Botany ,medicine ,Ferric ,Original Article ,Myricetin ,Gallic acid ,Quercetin ,Anti-glucosidase ,medicine.drug - Abstract
Background: The phytochemistry and bioactivity of wetland macrophytes are underexplored. Plants are known as the natural sources of phytochemical beneficial to health. Objective: The objective of this study is to analyze the phytochemical profiles and bioactivities of 10 extracts prepared from different plant parts of wetland macrophytes Hanguana malayana, Ludwigia adscendens and Monochoria hastata. Materials and Methods: High performance liquid chromatography (HPLC) was used to analyze the phytochemical profile of the extracts. Antioxidant assay such as 2,2-diphenyl-1-picrylhydrazyl, nitric oxide (NO) radical scavenging activity and ferric reducing antioxidant power were performed. Bioactivity assays carried out were anti-lipoxygenase, anti-glucosidase, and iron chelating. Results: Leaf extract of L. adscendens had the highest 2,2-diphenyl-1-picrylhydrazyl (half of maximal effective concentration [EC 50 ] =0.97 mg/mL) and NO (EC 50 = 0.31 mg/mL) scavenging activities. The extract also exhibited the highest iron chelating (EC 50 = 3.24 mg/mL) and anti-glucosidase (EC 50 = 27.5 μg/mL) activities. The anti-glucosidase activity of L. adscendens leaf extract was comparable or superior to those of acarbose, myricetin and quercetin. Correlation between iron chelating and radical scavenging activities among the extracts implies the presence of dual-function phytoconstituents with concurrent iron chelating and radical scavenging activities. HPLC analysis revealed the presence of p-coumaric acid (p-CA), gallic acid (GA) and myricetin in all or most extracts. M. hastata fruit and leaf extracts had the highest p-hydroxybenzoic acid content. Antioxidant and anti-glucosidase activities of the extracts were correlated with p-CA, GA, and myricetin contents. Conclusion: Our study demonstrated that wetland macrophytes H. malayana, L. adscendens and M. hastata are potential sources of health-promoting phytochemicals with potent therapeutically-relevant bioactivities. more...
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- 2014
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43. A Solution to the Major Weed Problems in Wet-Sown Rice: Experiences with Pretilachlor/Fenclorim in South-East Asia
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Jean-Louis Allard and Andreas Zoschke
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Crop ,Geography ,Agronomy ,biology ,Agroforestry ,Monochoria vaginalis ,Crop yield ,Fimbristylis miliacea ,biology.organism_classification ,Weed control ,Oryza ,Weed ,Ludwigia adscendens - Abstract
Wet-sown rice has become increasingly important in South-East Asia. Among other problems, weed control is a critical element in tropical wet-sown rice. Good crop tolerance and control of grasses are considered important characteristics to be fulfilled for a suitable herbicide in wet-sown rice. more...
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- 1990
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44. Life history and host specificity ofAltica cyanea [Coleoptera: Chrysomelidae], a potential biological control agent for water primrose,Ludwigia adscendens
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T. K. Nayek and T. C. Banerjee
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Flea beetle ,genetic structures ,biology ,fungi ,Biological pest control ,Plant Science ,Pentatomidae ,biology.organism_classification ,Ludwigia adscendens ,Animal ecology ,Insect Science ,Cyanea (plant) ,Botany ,Instar ,General Agricultural and Biological Sciences ,Agronomy and Crop Science ,Ecology, Evolution, Behavior and Systematics ,Altica - Abstract
The life history and host-specificity of the flea beetle,Altica cyanea (Weber) [Coleoptera: Chrysomelidae], were studied to determine its potential value as a biological control agent for water primrose,Ludwigia adscendens (Onagraceae). Females laid a mean of 146 yellowish eggs in masses on this weed and larvae passed through 3 instars. This multivoltine insect completed a generation in 80–84 days. In preliminary host-specificity trials, larvae and adults fed slightly on 2 varieties ofTrapanatans, but they caused considerable damage toLudwigia spp.; no feeding occurred on rice. In host plant choice tests, larvae and adults preferred to feed onL. adscendens andL. prostata toT. natans. In these same tests, onlyLudwigia spp. supported complete development, but it was fastest onL. adscendens. Adults that were reared onL. adscendens lived longer and laid more eggs than those reared onL. prostata, suggesting thatA. cyanea may be a promising biological control agent forL. adscendens growing in rice-paddies. AdultZicrona coerulea L. [Hemiptera: Pentatomidae] preyed upon 3rd instarA. cyanea larvae in the laboratory. more...
- Published
- 1987
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45. A new species of Mompha Hübner (Lepidoptera, Momphidae) from Assam, N.E. India, a potential agent for biological control of Ludwigia adscendens
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D. J. Carter, J. D. Bradley, T. Sankaran, and E. Narayanan
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Mompha ,biology ,Ecology ,Biological pest control ,Momphidae ,General Medicine ,biology.organism_classification ,Weed control ,Ludwigia adscendens ,Lepidoptera genitalia ,Insect Science ,Aquatic plant ,Botany ,Taxonomy (biology) ,Agronomy and Crop Science - Abstract
A species of Mompha, discovered on creeping water-primrose Ludwigia adscendens (Onagraceae) in Assam, N.E. India, is described as new and named Mompha ludwigiae. The eggs, larval and pupal stages are also described. Females lay up to 150 eggs in 3–7 days; development from egg to adult takes 3–5 weeks, the larva at first mining the leaves and later feeding externally on terminal shoots. The larvae could be reared on Oenothera rosea, L. perennis and L. octovalvis in the laboratory, but no host-plants other than L. adscendens were found in the field. A Eulophid parasite, Euryscotolinx sp., has been bred from pupal cocoons. more...
- Published
- 1973
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46. Impact of Textile Effluents on Pistia stratiotes L. and Ludwigia adscendens L. Using Hydroponic Culture
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Sirajul Haque, M. Shahidul Islam, Akm Rashidul Alam, and Halima Momtaz
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Biochemical oxygen demand ,biology ,Chemistry ,Environmental engineering ,Pharmaceutical Science ,biology.organism_classification ,Total dissolved solids ,Ludwigia adscendens ,Horticulture ,Complementary and alternative medicine ,Aquatic plant ,Stratiotes ,Pistia ,Pharmacology (medical) ,Effluent ,Total suspended solids - Abstract
The study was carried out to assess the impacts of textile effluents on aquatic plants by using hydroponic culture. Effluent water of three textile industries and effluent free water were collected from Savar region. The higher contents of pH (10.47), total suspended solids (1407.33 mg/L), total dissolved solids (19014 mg/L) and biochemical oxygen demand (735 mg/L) were recorded in industrial effluents comparing with control. The lowest content of DO in industrial effluents (0.87 mg/L) was much lower than the control (5.65 mg/L). Hydroponic test showed that 100, 75, 50, 25 and 1% textile effluents caused the death of Pistia stratiotes L. and Ludwigia adscendens L. within 1-4, 2- 6, 3-9, 5-12 and 14-17 days, respectively. When P. stratiotes was grown in 100% effluent water its concentrations of Cr, Cd, Cu, Mn, Ni and Zn were 8.00, 1.4375, 189.06, 1843.1, 5.075 and 261.87 ppm, respectively and the test species died within 1 - 3 days. When L . adscendens was grown in 100% effluent water, its concentrations of Cr, Cd, Cu, Mn, Ni and Zn were 7.25, 0.975, 312.87, 1621.2, 5.0125 and 138.75 ppm, respectively and the test species died within 2-4 days. The uptake of heavy metals increased with raising effluent concentration comparing with control culture. The uptake of Cr, Cd, Cu, Mn, Ni and Zn were significantly higher at 50%, 75% and 100% (p = 0.01** at 1% level of significance) effluent which caused the death of both test species. Key words: Textile effluents; Pistia stratiotes L.; Ludwigia adscendens L.; Hydroponic culture. DOI: 10.3329/bjsir.v45i1.5172 Bangladesh J. Sci. Ind. Res. 45(1) , 9-16, 2010 more...
- Published
- 1970
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