期刊
JOURNAL OF BIOTECHNOLOGY
卷 91, 期 2-3, 页码 189-195出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-1656(01)00343-1
关键词
Herbaspirillum seropedicae; nif genes; nif regulation; nitrogen fixation; mod genes; ntr genes; gln genes
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 P-subgroup of Proteobacteria, has regulatory features in common with Klebsiella pneumoniae, of the gamma -subgroup, at the level of nifA expression and with rhizobia and Azospirillum brasilense, of the alpha -subgroup, at the level of control of NifA by oxygen. (C) 2001 Elsevier Science B.V. All rights reserved.
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