Control of Herbaspirillum seropedicae NifA activity by ammonium ions and oxygen

Authors
Souza, EM Pedrosa, FO Drummond, M Rigo, LU Yates, MG
Citation
Em. Souza et al., Control of Herbaspirillum seropedicae NifA activity by ammonium ions and oxygen, J BACT, 181(2), 1999, pp. 681-684
Citations number
30
Categorie Soggetti
Microbiology
Journal title
JOURNAL OF BACTERIOLOGY
ISSN journal
00219193 → ACNP
Volume
181
Issue
2
Year of publication
1999
Pages
681 - 684
Database
ISI
SICI code
0021-9193(199901)181:2<681:COHSNA>2.0.ZU;2-H
Abstract
The activity of a truncated form of Herbaspirillum seropedicae NifA in diff erent genetic backgrounds showed that its regulatory domain is involved in nitrogen control but not in O-2 sensitivity or Fe dependence. The model for nitrogen control involving PII could thus apply to the proteobacteria at l arge. NifA may have a role in controlling ADP-ribosylation of nitrogenase i n Azospirillum brasilense.