title: Divergence of West African and North American communities of Aspergillus section Flavi.
abstract: 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.
authors.affiliation: Southern Regional Research Center, Agricultural Research Service, U. S. Department of Agriculture, New Orleans, Louisiana 70179-0687, USA. pjcotty@nola.srrc.usda.gov
authors.forename: P J
authors.initials: PJ
authors.lastname: Cotty
authors.forename: K F
authors.initials: KF
authors.lastname: Cardwell
mesh_terms: D016604:Aflatoxin B1 / Q000096:biosynthesis; D000348:Aflatoxins / Q000096:biosynthesis; D001231:Aspergillus flavus / Q000145:classification* / Q000302:isolation & purification / Q000378:metabolism; D001541:Benin; D005506:Food Contamination; D012988:Soil Microbiology; D013045:Species Specificity; D014481:United States
chemical_list: D000348:Aflatoxins; C027955:aflatoxin G1; D016604:Aflatoxin B1