REPRESSION OF NITROGEN-FIXATION IN KLEBSIELLA-PNEUMONIAE AT HIGH-TEMPERATURE

被引：25

作者：

BROOKS, SJ

COLLINS, JJ

BRILL, WJ

机构：

[1] UNIV WISCONSIN, DEPT BACTERIOL, MADISON, WI 53706 USA

[2] UNIV WISCONSIN, CTR STUDIES NITROGEN FIXAT, MADISON, WI 53706 USA

来源：

JOURNAL OF BACTERIOLOGY | 1984年 / 157卷 / 02期

关键词：

D O I：

10.1128/JB.157.2.460-464.1984

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The effect of elevated growth temperature on nif mRNA synthesis, nif protein synthesis and nitrogenase activity was investigated in wild-type and NifL- strains of K. pneumoniae. Nitrogenase activity is not affected at 41.degree. C; however, nitrogenase is not synthesized at that temperature. Transcription of 3 nif operons studied is repressed at 41.degree. C. Apparently, the nifL protein is not required for repression by high temperature and repression of nif at 41.degree. C results from a reversible inactivation of the nifA gene product.

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页码：460 / 464

页数：5

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