Weed control by metabolites produced from Diaporthe schini.

Environmental Technology
Thiarles BrunMarcio A Mazutti

Abstract

Weed control is a critical factor to ensure productivity and quality for food production. Chemical control is the main method used worldwide, but the demand for healthier food and the farmers' health and environment concerns have led to an increase in the search for alternative control methods. In this way, the use of biomolecules produced by microorganisms that present phytotoxic activity against weeds, such as exopolysaccharides, is attracting attention. For this purpose, this work compared two techniques (solid-state and submerged fermentation) for bioherbicide production by Diaporthe schini. Physicochemical characterization of both fermented broth and evaluation of bioherbicidal effect in post-emergence of Amaranthus viridis, Bidens pilosa, Echinocloa crusgalli, and Lollium multiflorum were performed. Fungal broth obtained by submerged fermentation presented better physicochemical characteristics in terms of viscosity, density, and surface tension. Overall, it was more effective than the broth obtained by solid-state fermentation for weed control because it presented an average inhibition of 40% of weed growth and 45% lower surface tension if compared to the control test. Also, reductions of 1.4-4.2 times of root dry mass, ...Continue Reading

References

Jun 9, 2005·Current Opinion in Microbiology·Udo Hölker, Jürgen Lenz
Oct 8, 2015·Natural Product Reports·Alessio CimminoAntonio Evidente
Sep 23, 2016·Environmental Technology·Won-Mo ChoDong-Yoon Choi
Oct 23, 2016·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Angélica Rossana Castro de SouzaMarcio A Mazutti
Jan 1, 2016·3 Biotech·Thiarles BrunMarcio A Mazutti

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Citations

Dec 22, 2020·Environmental Technology·Thiarles BrunMarcio A Mazutti

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