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Appl Environ Microbiol. 1970 July; 20(1): 31-34
Copyright © 1970 American Society for Microbiology. All Rights Reserved.

Zearalenone Production by Fusarium Species 1

Rodney W. Caldwell, John Tuite, Martin Stob and Robert Baldwin2

Department of Botany and Plant Pathology and Department of Animal Science, Purdue University, Lafayette, Indiana 47907

ABSTRACT

One-hundred-and-thirteen isolates of Fusarium were tested for their ability to produce zearalenone on autoclaved corn. They belonged to the following species (number of producers per number tested): F. epispheria, (0/1); F. moniliforme, (0/8); Gibberella fujikuroi, (0/3); F. nivale, (0/7); F. oxysporum, (0/15); F. roseum, (31/51); F. solani, (0/9); F. tricinctum (3/19). The isolates of individual species produced the following amounts of zearalenone per gram of corn: 3 isolates of F. roseum (0.6 to 119 µg), 3 of F. roseum "Culmorum" (1 to 210 µg), 3 of F. roseum "Equiseti" (0.6 to 2.0 µg), F. roseum "Gibbosum" (115 to 175 µg), 21 of F. roseum "Graminearum" (0.2 to 230 µg), and 3 of F. tricinctum (0.2 to 6.0 µg). All isolates of F. roseum "Graminearum" which formed the perithecial stage of G. zeae (G. roseum) produced zearalenone. Production occurred by the wild but not the appressed cultural type. Zearalenone production by F. tricinctum was confirmed by a mouse bioassay.

FOOTNOTES

2 Present address: Research Department, Commercial Solvents Corp., Terre Haute, Ind. 47808.

1 Journal Paper no. 3890. Purdue University Agricultural Experiment Station.

Appl Environ Microbiol. 1970 July; 20(1): 31-34
Copyright © 1970 American Society for Microbiology. All Rights Reserved.





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