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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Mycotoxin Prevention and Applied Microbiology Research » Research » Publications at this Location » Publication #362482
Research Project: Genomic and Metabolomic Approaches for Detection and Control of Fusarium, Fumonisins and Other Mycotoxins on Corn

Location: Mycotoxin Prevention and Applied Microbiology Research

Title: Exploring the effects of phenolic compounds and oxidative stressors on Fusarium verticillioides

Author
item HARDTKE, HALEY - Bradley University
item MONTES, M - Bradley University
item Brown, Daren
item MCQUADE, KRISTI - Bradley University

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 4/5/2019
Publication Date: 4/5/2019
Citation: Hardtke, H., Montes, M., Brown, D.W., McQuade, K.L. 2019. Exploring the effects of phenolic compounds and oxidative stressors on Fusarium verticillioides [abstract].

Interpretive Summary:

Technical Abstract: Trehalose is a disaccharide accumulated by fungi and other organisms under conditions of stress. Previous work published by our lab showed that a strain of the maize pathogenic fungus Fusarium verticillioides lacking trehalose is less pathogenic on maize seedlings than the wild-type strain, suggesting that the trehalose-null strain may be compromised in its ability to tolerate defense mechanisms launched by the maize during the process of infection. In this study, we test this possibility by exploring the effects of phenolic compounds or oxidative stressors, both associated with plant defense, on the growth and germination of mutant strains of F. verticillioides that lack one or more genes involved in the synthesis or degradation of trehalose. Our data indicate that disruption of trehalose metabolism affects the germination and growth rate of F. verticillioides, but does not significantly affect its sensitivity to phenolic acids. Effects of altered trehalose metabolism on sensitivity to oxidative stress are also being explored.