... of the Biochemical Society 2021 legumes nitric oxide nitrogen fixation rhizobia symbiosis Rhizobia is a common term for bacteria capable of forming a nitrogen-fixing symbiosis with leguminous plants, but they are also commonly found as free-living organisms in soils. They are Gram-negative bacteria...

...Marcelo Bueno Batista; Ray Dixon Biological nitrogen fixation (BNF) is controlled by intricate regulatory mechanisms to ensure that fixed nitrogen is readily assimilated into biomass and not released to the environment. Understanding the complex regulatory circuits that couple nitrogen fixation...

... and nitric oxide reductase regulator)] have been studied previously in the context of the regulation of nitrogen fixation and denitrification. The gene expression of both fixK 1 and nnrR depends on FixK 2 , which acts as a key distributor of the ‘low-oxygen’ signal perceived by the two-component regulatory...

... Society 2006 dinitrogenase reductase activating glycohydrolase (DRAG) membrane association dinitrogenase reductase ADP-ribosylation transferase (DRAT) nitrogen fixation nitrogenase Rhodospirillum rubrum Rhodospirillum rubrum is a photosynthetic, nitrogen-fixing bacterium within...

...R. Little; I. Martinez-Argudo; R. Dixon The NifL regulatory protein is an anti-activator that tightly regulates transcription of genes required for nitrogen fixation in Azotobacter vinelandii by controlling the activity of its partner protein NifA through the formation of a protein–protein complex...

... by nitrogenase, thus increasing the energy efficiency of the nitrogen fixation process. This review is focused on the genetics and biotechnology of the hydrogenase system from Rhizobium leguminosarum bv. viciae, a frequent inhabitant of European soils capable of establishing symbiotic association with peas...

... would be consistent with a role for GlnK in fully activating TnrA, perhaps by promoting displacement of glutamine synthetase in nitrogen-limited conditions. ammonium sensing ammonium transport nitrogen fixation nitrogen regulation P II regulatory proteins signal transduction...

... and Agrobacterium tumefaciens share from 25 to 32% of the gene orthologues on p42d, whereas plant pathogens such as Ralstonia solanacearum share 31%. The least number of orthologues are found in human pathogenic bacteria with small genomes. Genes involved in nitrogen fixation show little synteny with those...