Bioregulation of aflatoxin biosynthesis by unirradiated and irradiated conidia of Aspergillus flavus

被引：0

作者：

Aziz, NH ^{[1
]}

AbuShady, MR ^{[1
]}

ElFouly, MZ ^{[1
]}

Moussa, LA ^{[1
]}

机构：

[1] AIN SHAMS UNIV,FAC SCI,DEPT MICROBIOL,CAIRO,EGYPT

来源：

MICROBIOS | 1995年 / 84卷 / 338期

关键词：

aflatoxin; Aspergillus flavus; gamma-irradiation; adenine nucleotides; carbohydrates; fatty acids; microsomes; mitochondria;

D O I：

暂无

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

A sequential technique involving the transfer of mycelia from peptone-based, aflatoxin-non-supporting medium to glucose based, aflatoxin-supporting medium was used to study the effect of gamma-irradiation on the regulation of aflatoxin biosynthesis by Aspergillus flavus. Analysis indicated that irradiation at a dose of 1.00 kGy produced enhancement of aflatoxin biosynthesis in peptone-glucose mineral salt cultures with an increase of adenine nucleotide levels and fatty acid patterns of microsomes and mitochondria. The results suggest that aflatoxin synthesis is not regulated by the overall energy status of the fungal cell but that lipoperoxidation by gamma-irradiation plays a role in aflatoxin biosynthesis.

引用

页码：29 / 39

页数：11

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