Temperature adaptation and cryotolerance in Lactobacillus acidophilus

被引：10

作者：

Lorca, GL

de Valdez, GF

机构：

[1] Ctr Referencia Lactobacilos, RA-4000 San Miguel De Tucuman, Tucuman, Argentina

[2] Univ Nacl Tucuman, Fac Bioquim Quim & Farm, Cat Microbiol Super, RA-4000 San Miguel De Tucuman, Tucuman, Argentina

来源：

BIOTECHNOLOGY LETTERS | 1998年 / 20卷 / 09期

关键词：

D O I：

10.1023/A:1005359424973

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The response of Lactobacillus acidophilus CRL 639 to cold-shock (freezing) depends on the initial growth temperature. Cells cultured at 25 degrees C (long filaments with a mu value of 0.02 h(-1)) show a higher beta-galactosidase activity and develop cryotolerance, compared with cells grown at 37 degrees C. One-dimensional proteins gel electrophoresis shows the overexpression of six proteins (22.5-105.0 kDa) and the repression of eight proteins (4.3-48.0 kDa) at 25 degrees C.

引用

页码：847 / 849

页数：3

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