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将固氮细菌诱变使其对噬菌体Mu感染敏感:由Mu诱导的肺炎克雷伯菌M5al的固氮基因(nif)突变的分离

Mutational alteration of a nitrogen-fixing bacterium to sensitivity to infection by bacteriophage Mu: isolation of nif mutations of Klebsiella pneumoniae M5al induced by Mu.

作者信息

Rao R N

出版信息

J Bacteriol. 1976 Oct;128(1):356-62. doi: 10.1128/jb.128.1.356-362.1976.

Abstract

The nitrogen-fixing bacterium Klebsiella pneumoniae M5al is not sensitive to infection by bacteriophage Mu. A mutant of K. pneumoniae that is sensitive to Mu infection was isolated. Several Mu-induced auxotrophic mutations of K. pneumoniae including nif, trp, and rtl were isolated and genetically characterized. Evidence is presented that the Mu-induced mutations of nif arise as the result of insertion of Mu within (or near) the nif operon(s). The rtl locus, which determines the ability to utilize ribitol as a carbon source, was found to be linked to nif loci.

摘要

固氮细菌肺炎克雷伯氏菌M5al对噬菌体Mu的感染不敏感。分离出了一株对Mu感染敏感的肺炎克雷伯氏菌突变体。还分离出了肺炎克雷伯氏菌的几个由Mu诱导的营养缺陷型突变,包括nif、trp和rtl,并对其进行了遗传学特征分析。有证据表明,nif的Mu诱导突变是Mu插入nif操纵子(或其附近)的结果。发现决定利用核糖醇作为碳源能力的rtl位点与nif位点相连。

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本文引用的文献

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BACTERIOPHAGE-INDUCED MUTATION IN ESCHERICHIA COLI.噬菌体诱导的大肠杆菌突变
Proc Natl Acad Sci U S A. 1963 Dec;50(6):1043-51. doi: 10.1073/pnas.50.6.1043.
4
Transduction of the nitrogen-fixation genes in Klebsiella pneumoniae.肺炎克雷伯菌中固氮基因的转导
Proc Natl Acad Sci U S A. 1971 Jun;68(6):1174-7. doi: 10.1073/pnas.68.6.1174.
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Genetic transformation in Escherichia coli K12.大肠杆菌K12中的基因转化
Proc Natl Acad Sci U S A. 1973 Jan;70(1):84-7. doi: 10.1073/pnas.70.1.84.
8
Orientation of prophage Mu.原噬菌体Mu的定向
Virology. 1973 Sep;55(1):289-94. doi: 10.1016/s0042-6822(73)81033-5.
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Escherichia coli K-12 F-prime factors, old and new.大肠杆菌K-12 F-prime因子,新旧情况
Bacteriol Rev. 1972 Dec;36(4):587-607. doi: 10.1128/br.36.4.587-607.1972.

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