1. Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
2. Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
3. Mycotoxin Prevention and Applied Microbiology Research Unit, USDA-ARS National Center for Agricultural Utilization Research, Peoria, Illinois 61604, United States
4. Department of Microbiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801 United States