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The phylogenetics of mycotoxin and sclerotium production in Aspergillus flavus and Aspergillus oryzae.
Aspergillus flavus is a common filamentous fungus that produces aflatoxins and presents a major threat to agriculture and human health. Previous phylogenetic studies of A. flavus have shown that itExpand
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Sequence breakpoints in the aflatoxin biosynthesis gene cluster and flanking regions in nonaflatoxigenic Aspergillus flavus isolates.
Aspergillus flavus populations are genetically diverse. Isolates that produce either, neither, or both aflatoxins and cyclopiazonic acid (CPA) are present in the field. We investigated defects in theExpand
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Regional Differences in Production of Aflatoxin B1 and Cyclopiazonic Acid by Soil Isolates ofAspergillus flavus along a Transect within the United States
  • B. Horn, J. Dorner
  • Biology, Medicine
  • Applied and Environmental Microbiology
  • 1 April 1999
ABSTRACT Soil isolates of Aspergillus flavus from a transect extending from eastern New Mexico through Georgia to eastern Virginia were examined for production of aflatoxin B1 and cyclopiazonic acidExpand
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Ecology and Population Biology of Aflatoxigenic Fungi in Soil
Soil serves as a reservoir for Aspergillus flavus and A. parasiticus, fungi that produce carcinogenic aflatoxins in agricultural commodities. Populations in soil are genetically diverse andExpand
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Characterization and population analysis of the mating-type genes in Aspergillus flavus and Aspergillus parasiticus.
We characterize the mating-type genes in Aspergillus flavus,Aspergillus parasiticus and Petromyces alliaceus. A single MAT1-1 or MAT1-2 gene was detected in the genomes of A. flavus and A.Expand
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SOIL POPULATIONS OF ASPERGILLUS SPECIES FROM SECTION FLAVI ALONG A TRANSECT THROUGH PEANUT-GROWING REGIONS OF THE UNITED STATES
Soil populations of Aspergillus species from section Flavi, several of which produce aflatoxins and cyclopiazonic acid, were examined from 166 cultivated fields along a transect extending from east...
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Aspergillus nomius, a new aflatoxin-producing species related to Aspergillus flavus and Aspergillus tamarii
Aspergillus nomius is described and represents a new aflatoxigenic species phenotypically similar to A. flavus. Strains examined were isolated from insects and agricultural commodities. SeparationExpand
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Sexual reproduction in Aspergillus flavus
Aspergillus flavus is the major producer of carcinogenic aflatoxins in crops worldwide and is also an important opportunistic human pathogen in aspergillosis. The sexual state of this heterothallicExpand
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Clustered genes involved in cyclopiazonic acid production are next to the aflatoxin biosynthesis gene cluster in Aspergillus flavus.
Cyclopiazonic acid (CPA), an indole-tetramic acid mycotoxin, is produced by many species of Aspergillus and Penicillium. In addition to CPA Aspergillus flavus produces polyketide-derived carcinogenicExpand
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Cultural Methods for Aflatoxin Detection
Aflatoxins present important food safely problems in both developed and developing countries. Contamination is monitored in developed countries using enzyme‐linked immunusorbent assay (ELISA)‐ andExpand
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