What is it about?
Rhamnose is a sugar constituent of various plant-derived compounds, and Bacillus subtilis is a soil bacterium that has been shown to contribute to plant growth-promotion by associating with plant roots. We have revealed the transcriptional regulation of the rhamnose catabolic genes in this bacterium.
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Why is it important?
Rhamnose is a potential carbon source for plant-associating bacteria. In addition, it is suggested that rhamnose catabolism plays a significant role in some bacteria-plant interactions, e.g., invasion of plant pathogens and nodulation of rhizobia. Despite physiological importance of rhamnose catabolism for various bacterial species, the transcriptional regulation of the relevant genes has been poorly understood, except for the regulatory system of Escherichia coli. The regulatory system of rhamnose catabolic genes in B. subtilis can be another standard model for better understanding those in the other bacterial species such as rhizobia.
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This page is a summary of: Regulation of therhaEWRBMAOperon Involved in l-Rhamnose Catabolism through Two Transcriptional Factors, RhaR and CcpA, in Bacillus subtilis, Journal of Bacteriology, December 2015, ASM Journals,
DOI: 10.1128/jb.00856-15.
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