Chemical constituents of Desmodium triflorum and their antifungal activity against various phytopathogenic fungi
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Hieu Nguyen-Ngoc
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Trang Nguyen-Thi-Thu
,
Kieu-Anh Vo-Thi
Abstract
In the course of finding new antifungal natural compounds against plant pathogens, the methanol extract of Desmodium triflorum was investigated phytochemically. From n-butanol-soluble fraction, seven compounds (1–7) were isolated and structurally elucidated. Of which, six compounds belong to flavone 6- or 8-C-glycoside class (1–6). Three major compounds (1–3) exhibited moderate in vitro antifungal activity against Sclerotium rolfsii, Fusarium oxysporum f. sp. cubense, and Phytophthora palmivora. Compound 1 (IC50 = 162.1 μg/mL) was most active against S. rolfsii in a dose-dependent manner. At 300 μg/mL, compounds 1 and 2 significantly inhibited P. palmivora, whereas compound 3 lacked effectiveness. In addition, the nanoemulsion of the methanol extract with a droplet size of 12.2 nm displayed an excellent inhibition against S. rolfsii and P. palmivora compared with the normal extract. The presence of 1 (0.846%) and 2 (0.759%) in the methanol extract may attribute to the antifungal activity of D. triflorum. These results proved the potential of D. triflorum and its C-glycoside flavonoids against phytopathogenic fungi for the first time. Besides, an enhancement in the effectiveness of nanoemulsion containing D. triflorum extract against the fungi was confirmed. The structural characteristics of 1 and 2 could be considered to develop new fungicidal substances in the future.
Funding source: Graduate University of Science and Technology
Award Identifier / Grant number: GUST.STS.ĐT2020-HH15
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This research is funded by Graduate University of Science and Technology under grant number GUST.STS.ĐT2020-HH15.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/znc-2022-0048).
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Artikel in diesem Heft
- Frontmatter
- Research Articles
- A novel eudesmol derivative from the leaf essential oil of Guatteria friesiana (Annonaceae) and evaluation of the antinociceptive activity
- Chemical constituents of Desmodium triflorum and their antifungal activity against various phytopathogenic fungi
- Exploring phytochemical constituents of Achillea arabica Kotschy. ethanolic flower extract by LC-MS/MS and its possible antioxidant and antidiabetic effects in diabetic rats
- Chemical constituents from Ficus sur Forssk (Moraceae)
- In vitro acetylcholinesterase, tyrosinase inhibitory potentials of secondary metabolites from Euphorbia schimperiana and Euphorbia balsamifera
- Furoquinoline and bisindole alkaloids from the roots of Teclea nobilis and their in-silico molecular docking analysis
- Limonoids and insecticidal activity on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) of Trichilia catigua A. Juss. (Meliaceae)
- Tissue specific changes of phytochemicals, antioxidant, antidiabetic and anti-inflammatory activities of tea [Camellia sinensis (L.)] extracted with different solvents
- Anonazepine, a new alkaloid from the leaves of Annona muricata (Annonaceae)
- Two new natural products from Portulaca oleracea L. and their bioactivities
Artikel in diesem Heft
- Frontmatter
- Research Articles
- A novel eudesmol derivative from the leaf essential oil of Guatteria friesiana (Annonaceae) and evaluation of the antinociceptive activity
- Chemical constituents of Desmodium triflorum and their antifungal activity against various phytopathogenic fungi
- Exploring phytochemical constituents of Achillea arabica Kotschy. ethanolic flower extract by LC-MS/MS and its possible antioxidant and antidiabetic effects in diabetic rats
- Chemical constituents from Ficus sur Forssk (Moraceae)
- In vitro acetylcholinesterase, tyrosinase inhibitory potentials of secondary metabolites from Euphorbia schimperiana and Euphorbia balsamifera
- Furoquinoline and bisindole alkaloids from the roots of Teclea nobilis and their in-silico molecular docking analysis
- Limonoids and insecticidal activity on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) of Trichilia catigua A. Juss. (Meliaceae)
- Tissue specific changes of phytochemicals, antioxidant, antidiabetic and anti-inflammatory activities of tea [Camellia sinensis (L.)] extracted with different solvents
- Anonazepine, a new alkaloid from the leaves of Annona muricata (Annonaceae)
- Two new natural products from Portulaca oleracea L. and their bioactivities
