期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 226, 期 -, 页码 1597-1610出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.11.272
关键词
Chitosan nanocomposite; Eichhornia crassipes Allophoma oligotrophica
In this study, the herbicidal activity of a chitosan nanocomposite containing fungal metabolites was investigated against the invasive water hyacinth. The synthesized nanocomposite showed significant herbicidal effects on the leaflets of water hyacinth, causing necrotic damage and functional changes. Ethyl acetate treatment demonstrated controlled release of the metabolites, while revealing no toxic effects on zebrafish embryonic development, indicating the biocompatibility of the nanocomposite.
In this current work, the herbicidal activity of fungal metabolites stacked chitosan nanocomposite against sig-nificant aquatic invasive weed Eichhornia crassipes (water hyacinth) was examined. Herbicidal metabolites from the fungal strain Allophoma oligotrophica were extracted and purified under standard condition. Altered ionic gelation technique was received for the amalgamation of chitosan nanocomposite fabricated with herbicidal metabolites. Synthesized nanocomposite incited checked herbicidal impact on the leaflets of water hyacinth. Synthesized nanocomposite induced marked herbicidal effect on the tested leaflets of water hyacinth. Necrotic development on the tested leaflets at earlier incubation period followed by progressive enhancement of necrotic lesion reveals the noteworthy herbicidal activity of the synthesized nanocomposite. Parenchymal, mesenchymal tissue disintegration, reduction of total chlorophyll content, elevated anti oxidative enzymes and changes in qualitative protein profiling of tested leaflets reveals the nanocomposite induced noteworthy morphometric and functional effects. Effect of solvents on the release profile demonstrates that ethyl acetate treatment brought about controlled or sustained release of metabolites. No sign of toxic effect on the zebra fish embryonic devel-opmental stages revealed biocompatibility of the nanocomposite.
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