Abstract:
:The virulence of Salmonella typhimurium for mice is dependent on a plasmid-borne gene cluster termed spv. We previously determined that both S. typhimurium and Escherichia coli bacteria grown in a rich medium preferentially express the spv genes during the stationary phase of growth. In this study we evaluated the role of KatF, a putative sigma factor for starvation- and stationary phase-induced genes, in the expression of the spvB gene. The transcription of spvB in E. coli was compared in katF and wild-type backgrounds, using cloned spvB-lacZ and spvB-cat fusions. Expression of spvB was found to be greatly affected in katF mutants. Complementation experiments performed with the cloned katF gene confirmed that KatF is required for the expression of the S. typhimurium virulence gene spvB in E. coli.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Norel F,Robbe-Saule V,Popoff MY,Coynault Cdoi
10.1016/0378-1097(92)90039-qkeywords:
subject
Has Abstractpub_date
1992-12-01 00:00:00pages
271-6issue
2-3eissn
0378-1097issn
1574-6968journal_volume
78pub_type
杂志文章abstract::We have studied the single rRNA gene cluster from the Archaeon, Pyrococcus furiosus. This isolate grows optimally at 100 degrees C and is thus a hyperthermophile. In P. furiosus, transcription of 16S rRNA is subject to regulation over a 7.5-fold range in response to a 20-fold increase in growth rate. The single cluste...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06379.x
更新日期:1993-08-01 00:00:00
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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更新日期:1999-10-15 00:00:00
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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更新日期:1992-03-01 00:00:00
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
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doi:10.1111/j.1574-6968.1996.tb08592.x
更新日期:1996-12-01 00:00:00
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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