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Appl Environ Microbiol. 1990 October; 56(10): 3047-3051

Occurrence of Gibberella zeae strains that produce both nivalenol and deoxynivalenol.

Department of Toxicology and Microbial Chemistry, Faculty of Pharmaceutical Sciences, Science University of Tokyo, Japan.

ABSTRACT

By single ascospore isolation, several sets of asci containing eight ascospores were isolated from perithecia of Gibberella zeae. Of these sets, seven were investigated for their ability to produce 8-ketotrichothecene mycotoxins on rice grains. Analyses were made with gas chromatography-mass spectrometry and gas chromatography with 63Ni electron capture detection. Of 56 total isolates, 11 produced nivalenol, 4-acetylnivalenol, and deoxynivalenol, 1 produced nivalenol and deoxynivalenol, 7 produced deoxynivalenol and 3-acetyldeoxynivalenol, 19 produced deoxynivalenol and 15-acetyldeoxynivalenol, and 6 produced deoxynivalenol and both 15- and 3-acetyldeoxynivalenol. The remaining 12 isolates produced nivalenol and 4-acetylnivalenol. All isolates of G. zeae that we examined could produce 8-ketotrichothecenes in this investigation. This report is the first to demonstrate the presence of G. zeae isolates producing both nivalenol and deoxynivalenol. In addition, differences in the production between 3-acetyldeoxynivalenol and 15-acetyldeoxynivalenol are discussed in relation to culture conditions.

This article has been cited by other articles:

• Lee, T., Han, Y.-K., Kim, K.-H., Yun, S.-H., Lee, Y.-W. (2002). Tri13 and Tri7 Determine Deoxynivalenol- and Nivalenol-Producing Chemotypes of Gibberella zeae. Appl. Environ. Microbiol. 68: 2148-2154 [Abstract] [Full Text]  
• Lee, T., Oh, D.-W., Kim, H.-S., Lee, J., Kim, Y.-H., Yun, S.-H., Lee, Y.-W. (2001). Identification of Deoxynivalenol- and Nivalenol-Producing Chemotypes of Gibberella zeae by Using PCR. Appl. Environ. Microbiol. 67: 2966-2972 [Abstract] [Full Text]