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Applied and Environmental Microbiology, May 1999, p. 2264-2266, Vol. 65, No. 5
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Divergence of West African and North American Communities of Aspergillus Section Flavi

Peter J. Cotty1,* and Kitty F. Cardwell2

Southern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, New Orleans, Louisiana 70179-0687,1 and Biological Control Center for Africa, International Institute of Tropical Agriculture, Cotonou, Republic of Benin2

Received 28 September 1998/Accepted 26 February 1999

West African Aspergillus flavus S isolates differed from North American isolates. Both produced aflatoxin B1. However, 40 and 100% of West African isolates also produced aflatoxin G1 in NH4 medium and urea medium, respectively. No North American S strain isolate produced aflatoxin G1. This geographical and physiological divergence may influence aflatoxin management.

* Corresponding author. Mailing address: Southern Regional Research Center, ARS/USDA, P.O. Box 19687, New Orleans, LA 70179. Phone: (504) 286-4391. Fax: (504) 286-4419. E-mail: pjcotty{at}nola.srrc.usda.gov.

Applied and Environmental Microbiology, May 1999, p. 2264-2266, Vol. 65, No. 5
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


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