精氨酸脱亚氨酶系统与细菌对酸性环境的适应
Arginine deiminase system and bacterial adaptation to acid environments.
作者信息
Marquis R E, Bender G R, Murray D R, Wong A
出版信息
Appl Environ Microbiol. 1987 Jan;53(1):198-200. doi: 10.1128/aem.53.1.198-200.1987.
Abstract
The arginine deiminase system in a variety of streptococci and in Pseudomonas aeruginosa was found to be unusually acid tolerant in that arginolysis occurred at pH values well below the minima for growth and glycolysis. The acid tolerance of the system allowed bacteria to survive potentially lethal acidification through production of ammonia to raise the environmental pH value.
摘要
在多种链球菌和铜绿假单胞菌中发现，精氨酸脱亚胺酶系统具有异常耐酸的特性，因为精氨酸分解在远低于生长和糖酵解最低pH值的情况下仍能发生。该系统的耐酸性使细菌能够通过产生氨来提高环境pH值，从而在潜在的致死性酸化环境中存活。
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