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The CtrA phosphorelay integrates differentiation and communication in the marine alphaproteobacterium Dinoroseobacter shibae.
Wang, Hui Ziesche, Lisa Frank, Oliver Michael, Victoria Martin, Madeleine Petersen, Jörn Schulz, Stefan Wagner-Döbler, Irene Tomasch, Jürgen
Wang, Hui
Ziesche, Lisa
Frank, Oliver
Michael, Victoria
Martin, Madeleine
Petersen, Jörn
Schulz, Stefan
Wagner-Döbler, Irene
Tomasch, Jürgen
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Abstract
Dinoroseobacter shibae, a member of the Roseobacter clade abundant in marine environments, maintains morphological heterogeneity throughout growth, with small cells dividing by binary fission and large cells dividing by budding from one or both cell poles. This morphological heterogeneity is lost if the quorum sensing (QS) system is silenced, concurrent with a decreased expression of the CtrA phosphorelay, a regulatory system conserved in Alphaproteobacteria and the master regulator of the Caulobacter crescentus cell cycle. It consists of the sensor histidine kinase CckA, the phosphotransferase ChpT and the transcriptional regulator CtrA. Here we tested if the QS induced differentiation of D. shibae is mediated by the CtrA phosphorelay.
Citation
The CtrA phosphorelay integrates differentiation and communication in the marine alphaproteobacterium Dinoroseobacter shibae. 2014, 15:130 BMC Genomics
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Article
Language
en
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Series/Report no.
ISSN
1471-2164