Flahaut S, Hartke A, Giard J C, Auffray Y
Laboratoire de Microbiologie de l'Environnement, Université de Caen, France.
Appl Environ Microbiol. 1997 Feb;63(2):812-4. doi: 10.1128/aem.63.2.812-814.1997.
The alkaline shock response in Enterococcus faecalis was studied in this work. Cells adapted to an optimum pH of 10.5 were tolerate to pH 11.9 conditions but acquired sensitivity to acid damage. An analysis of stress proteins revealed that 37 polypeptides were amplified. Two of these are DnaK and GroEL. The combined results show that bile salts and alkaline stress responses are closely related.
本研究对粪肠球菌中的碱性休克反应进行了研究。适应最适pH值为10.5的细胞能够耐受pH值为11.9的条件,但对酸损伤变得敏感。对应激蛋白的分析表明,有37种多肽被扩增。其中两种是DnaK和GroEL。综合结果表明,胆盐和碱性应激反应密切相关。