Endophytic fungal extracts: evaluation as photosynthesis and weed growth inhibitors.

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ID: 264430
2020
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Abstract
A central pillar of modern weed control is the discovery of new herbicides which are nontoxic to humans and the environment and which have low application dosage. The natural products found in plants and microorganisms are well suited in this context because they are generally nontoxic and have a wide variety of biological activities. In this work, (), () and () (methanolic extracts) were evaluated as photosynthesis and plant growth inhibitors in and . The most significant results were observed for and in and , respectively. reduced PI, ET/CS, PHI(E) and PSI parameters by 64, 28, 40 and 38%, respectively, indicating a reduction on electron transport efficiency. Additionally, decreased shoot length by 9%, affecting the plant growth. reduced PI, ET/CS and PHI(E) parameters by 50, 20, 26 and 22%, respectively, revealing the inhibition competency on PSII acceptor site. Furthermore, decreased by 50% the shoot length on germination assay. Thus, the phytotoxic behaviors based on endophytic fungal extracts may serve as a valuable tool in the further development of a bioherbicide since natural products represent an interesting alternative to replace commercial herbicides.
Reference Key
moura2020endophyticjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Moura, Mariana S;Lacerda, Jhuly W F;Siqueira, Kátia A;Bellete, Barbara S;Sousa, Paulo T;Dall Óglio, Evandro L;Soares, Marcos A;Vieira, Lucas C C;Sampaio, Olívia M;
Journal Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes
Year 2020
DOI
10.1080/03601234.2020.1721981
URL
Keywords
fluorescence ipomoea grandifolia bioherbicide diaporthe phaseolorum penicillium simplicissimum senna occidentalis trichoderma spirale chlorophyll a

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