Metalloid and metal oxide nanoparticles suppress Sudden Death Syndrome of soybean.

07:00 EST 3rd December 2019 | BioPortfolio

Summary of "Metalloid and metal oxide nanoparticles suppress Sudden Death Syndrome of soybean."

Soybean (Glycine max) (V3 stage) were sprayed once with nanoparticles (NPs) of AgO, B, CeO, CuO, MnO, MoO3, SiO, TiO, or ZnO and exposed to Fusarium virguliforme, the cause of sudden death syndrome. Up to 80% root rot was observed in greenhouse experiments. However, NP CuO, B, MoO3, or ZnO reduced root rot severity by 17-25%. Infected roots and shoots had significant changes in B, Mg, P, S, Si, and Zn but NP treatment restored levels to that of healthy control. For example, the increased root Mg and Mn content induced by disease was reversed by NP B and Mn amendment. In vitro assays found the NPs did not inhibit the pathogen. This, along with the restoration of altered nutrient levels in the plant tissue, suggests that modulated plant nutrition increased disease defense. Treatment of seedlings with nanoscale micronutrients may be a new tool in promoting soybean health.


Journal Details

This article was published in the following journal.

Name: Journal of agricultural and food chemistry
ISSN: 1520-5118


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