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Applied and Environmental Microbiology, December 2005, p. 8963-8965, Vol. 71, No. 12
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.12.8963-8965.2005

SHORT REPORT

An Aflatoxin Biosynthesis Cluster Gene Encodes a Novel Oxidase Required for Conversion of Versicolorin A to Sterigmatocystin

Kenneth C. Ehrlich,* Beverly Montalbano, Stephen M. Boué, and Deepak Bhatnagar

Southern Regional Research Center/ARS/USDA, P.O. Box 19687, New Orleans, Louisiana 70124

Received 8 June 2005/ Accepted 24 August 2005

Disruption of the aflatoxin biosynthesis cluster gene aflY (hypA) gave Aspergillus parasiticus transformants that accumulated versicolorin A. This gene is predicted to encode the Baeyer-Villiger oxidase necessary for formation of the xanthone ring of the aflatoxin precursor demethylsterigmatocystin.

* Corresponding author. Mailing address: SRRC/ARS/USDA, 1100 R. E. Lee Blvd., P.O. Box 19687, New Orleans, LA 70179. Phone: (504) 286-4369. Fax: (504) 286-4419. E-mail: ehrlich{at}srrc.ars.usda.gov.

Applied and Environmental Microbiology, December 2005, p. 8963-8965, Vol. 71, No. 12
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.12.8963-8965.2005




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  • Frisvad, J.C., Larsen, T.O., de Vries, R., Meijer, M., Houbraken, J., Cabanes, F.J., Ehrlich, K., Samson, R.A. (2007). Secondary metabolite profiling, growth profiles and other tools for species recognition and important Aspergillus mycotoxins. SIM 59: 31-37 [Abstract] [Full Text]  
  • Cary, J. W., Ehrlich, K. C., Bland, J. M., Montalbano, B. G. (2006). The Aflatoxin Biosynthesis Cluster Gene, aflX, Encodes an Oxidoreductase Involved in Conversion of Versicolorin A to Demethylsterigmatocystin. Appl. Environ. Microbiol. 72: 1096-1101 [Abstract] [Full Text]  


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