Abstract
Herbaspirillum seropedicae is a nitrogen-fixing bacterium found in association with economically important gramineae. Regulation of nitrogen fixation involves the transcriptional activator NifA protein. The regulation of NifA protein and its truncated mutant proteins is described and compared with that of other nitrogen fixation bacteria. Nitrogen fixation control in H. seropedicae, of the β-subgroup of Proteobacteria, has regulatory features in common with Klebsiella pneumoniae, of the γ-subgroup, at the level of nifA expression and with rhizobia and Azospirillum brasilense, of the α-subgroup, at the level of control of NifA by oxygen.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have