Variation in regulation of aflatoxin biosynthesis among isolates ofAspergillus flavus
| Autor: | F. S. Chu, T. J. Leonard, E. H. Gendloff |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Aflatoxin
Mutant Aspergillus flavus Microbiology Cellular and Molecular Neuroscience chemistry.chemical_compound Aflatoxins Species Specificity heterocyclic compounds Mycotoxin Molecular Biology Pharmacology biology Strain (chemistry) Mutagenesis technology industry and agriculture Genetic Variation food and beverages Cell Biology Fungi imperfecti biology.organism_classification biological factors Aspergillus parasiticus Culture Media Phenotype chemistry Molecular Medicine |
| Zdroj: | Experientia. 48:84-87 |
| ISSN: | 1420-9071 0014-4754 |
| DOI: | 10.1007/bf01923614 |
| Popis: | Two new phenotypes of Aspergillus flavus which exhibit novel patterns of aflatoxin production have been identified and characterized. In one of the new variants of A. flavus, aflatoxin is made in the absence of carbohydrate and concomitantly with growth, without a lag period. A second variant did not produce aflatoxin in the presence or absence of carbohydrate. Chemical mutagenesis of this nonaflatoxigenic strain resulted in mutant strains which produced aflatoxin on carbohydrate-containing media. The aflatoxin production pattern observed in these mutants resembled the typical production scheme, with a lag period through log phase growth. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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