Induction of Aspergillus oryzae mutant strains producing increased levels of alpha-amylase by gamma-irradiation

被引：3

作者：

Ito, H

Nessa, A

机构：

[1] Takasaki Radiat. Chem. Res. Estab., Japan Atom. Ener. Res. Institute, Takasaki

[2] Inst. of Food and Radiation Biology, Atom. Energy Research Establishment, Dhaka 1000

来源：

RADIATION PHYSICS AND CHEMISTRY | 1996年 / 48卷 / 06期

关键词：

D O I：

10.1016/S0969-806X(96)00057-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of gamma-ray irradiation on the mutation of Aspergillus oryzae was studied with special reference to color changes of colonies and the ability to produce enzymes. The increased spore size and deoxyribonucleic acid content was observed on the mutant strains of higher enzyme production at 2-5 times compared with parent strain. However, glucoamylase activities were not increased remarkably compared with α-amylase. Results suggested that higher doses of gamma-irradiation induces higher frequency of mutation compared with ultraviolet-irradiation.

引用

页码：811 / 813

页数：3