Cyclopiazonic acid production by aflatoxigenic and non-aflatoxigenic strains of aspergillus flavus |
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| Authors: | Rex T Gallagher John L Richard H Michael Stahr Richard J Cole |
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| Institution: | (1) Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Iowa State University, 50011 Ames, Iowa, USA;(2) SEA-FR, U.S. Dept. of Agriculture, National Animal Disease Center, 50010 Ames, Iowa, USA;(3) U.S. Dept. of Agriculture, National Peanut Research Laboratory, 31742 Dawson, Georgia, USA;(4) Present address: Applied Biochemistry Division, Department of Scientific & Industrial Research, P.B., Palmerston North, New Zealand |
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| Abstract: | Twenty-eight of 54 isolates of Aspergillus flavus grown on autoclaved agricultural commodities such as wheat, rice and corn were found to produce the mycotoxin cyclopiazonic acid. Eighteen of the A. flavus isolates produced aflatoxin, and fourteen isolates produced both cyclopiazonic acid and aflatoxin. A preliminary screening of some aflatoxin-contaminated corn samples revealed for the first time the natural occurrence of cyclopiazonic acid in agricultural commodities. |
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