EFFECT OF GLUCOSE AND CITRATE ON ALPHA-AMYLASE PRODUCTION IN BACILLUS-LICHENIFORMIS

被引：14

作者：

TONKOVA, A

机构：

[1] Institute of Microbiology, Section of Enzyme Biosynthesis, Bulgarien Academy of Sciences, Sofia

来源：

JOURNAL OF BASIC MICROBIOLOGY | 1991年 / 31卷 / 03期

关键词：

D O I：

10.1002/jobm.3620310310

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Studies on the alpha-amylase synthesis were carried out with two strains of Bacillus licheniformis: a mutant strain 44MB82 and its selected variant 44MB82-G. The cells were cultivated in a nutrient medium containing glucose or citrate as a carbon source. The results obtained indicated that alpha-amylase was produced in both strains without inducers in the medium. The variant strain 44MB82-G, which synthesized alpha-amylase in the presence of 6% glucose, showed 58-fold increased alpha-amylase activity compared to strain 44MB82 grown in the presence of 2% glucose. When cells of both strains were cultivated in a medium with 1% citrate, alpha-amylase activity of the variant strain was 5 times higher than that of strain 44MB82. The effects of starch and ATP on alpha-amylase synthesis are also discussed.

引用

页码：217 / 222

页数：6

共 19 条

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