瞬时λ原噬菌体诱导对大肠杆菌紫外线抗性和重组的影响。
Effect of transient lambda prophage induction on ultraviolet light resistance and recombination in Escherichia coli.
作者信息
Braun A, Gluck D
出版信息
J Bacteriol. 1977 Jul;131(1):208-13. doi: 10.1128/jb.131.1.208-213.1977.
Abstract
Transient induction of lambda prophage increases the ultraviolet light resistance of most exponentially growing Escherichia coli lysogens. Resistance is increased in wild-type, recB, recB recC, recB recC recF, and recB recC recL hosts. No enhancement in recA lysogens was found, nor was there enhancement in stationary cultures. Enhancement was dependent upon the lambdared recombination system. Transient induction also increases the genetic recombination rate in recB lysogens as measured in Hfr X F- matings.
摘要
λ原噬菌体的瞬时诱导可提高大多数指数生长的大肠杆菌溶原菌对紫外线的抗性。在野生型、recB、recB recC、recB recC recF和recB recC recL宿主中，抗性均有所增加。在recA溶原菌中未发现抗性增强，在稳定期培养物中也未发现增强现象。抗性增强依赖于λred重组系统。如在Hfr×F-交配中所测，瞬时诱导还可提高recB溶原菌中的基因重组率。
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