Biological Nitrogen Fixation for the 21st Century pp 155-155 | Cite as
Complex Regulation of σ54 Synthesis and Activity in Rhizobium etli
Chapter
Abstract
Bacterial sigma factors confer promoter specificity to transcription initiated by the RNA polymerase holoenzyme. The alternative sigma factor σ54 (RpoN, NtrA, GlnF) encoded by the rpoN gene allows cells to respond to many different environmental stimuli. Although it is clear that σ54 fulfills a central role during symbiosis, little is known on the regulation of rpoN transcription and activity of its gene product. We have isolated, sequenced and mutated the rpoN gene region of Rhizobium etli, the nodulating symbiont of the common bean plant, Phaseolus vulgaris.
Keywords
Sigma Factor Pigment Melanin Melanin Production Alternative Sigma Factor Common Bean Plant
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Copyright information
© Springer Science+Business Media Dordrecht 1998