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Appl. Environ. Microbiol., Nov 1996, 4036-4038, Vol 62, No. 11
Copyright © 1996, American Society for Microbiology

Aflatoxin and cyclopiazonic acid production by a sclerotium-producing Aspergillus tamarii strain

T Goto, DT Wicklow and Y Ito
Wholesomeness Evaluation Laboratory, National Food Research Institute, Tsukuba, Japan.

The production of aflatoxins B1 and B2 by Aspergillus tamarii (subgenus Circumdati section Flavi) is reported for the first time. The fungus was isolated from soil collected from a tea (Camellia sinensis) field in Miyazaki Prefecture, Japan. Three single-spore cultures, NRRL 25517, NRRL 25518, and NRRL 25519, were derived from subcultures of the original isolate 19 (MZ2). Each of these single-spore cultures of A. tamarii produced aflatoxins B1 and B2 and cyclopiazonic acid, as well as black, pear-shaped sclerotia. The demonstration of aflatoxin production by A. tamarii is examined in connection with A. tamarii phylogenetic relationships, chemical ecology, and potential use in food fermentations.

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