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ARS Home » Research » Publications at this Location » Publication #81858
Title: FUMONISINS AND TOLERANT FUNGAL SPECIES: STUDY OF THEIR INTERACTIONS ON MINIMAL MEDIA

Author
item SANHUEZA PERALTA, CARMEN - CIUDAD UNIV, ARGENTINA
item Plattner, Ronald
item Desjardins, Anne

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 9/20/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The fumonisins (FB) are mycotoxins produced by Fusarium moniliforme, a pathogen of corn worldwide that is able to cause local and systemic infections in plants and seeds of corn. FB1, the most important of these compounds because of its natural occurrence and potent toxic effects, has phycotoxic properties and cancer-promoting activity. These facts, together with the contamination by F. moniliforme and FB found in Argentine corn and the financial importance of this cereal for Argentina, raise the necessity to find strategies of control. To elucidate if a mechanism of regulation exists in the maize-Fusarium- FB interaction will be useful in the development of resistant varieties and field control. Little is known about the role of the FB in the growth and survival of F. moniliforme. It has been shown that FB1 is a virulence factor on corn. On the other hand, F. moniliforme is frequently found on corn even on healthy looking kernels. The purpose of this study was to investigate if the production of FB1 gives F. moniliforme a protection or a competitive advantage with regard to other fungi in the invasion of the corn.