Regulation of nitrogen fixation in Azospirillum brasilense Sp7: involvement of nifA, glnA and glnB gene products.
FEMS Microbiol Lett
; 100(1-3): 113-9, 1992 Dec 15.
Article
en En
| MEDLINE
| ID: mdl-1362170
ABSTRACT
The expression of nifA-, niH- and nifB-lacZ fusions was examined in different mutants of Azospirillum brasilense. Mutations in nifA, glnA and glnB severely impaired the expression of nifH- and nifB-lacZ fusions. By contrast, a nifA-lacZ fusion was not affected in a nifA or a glnB background and was only partially impaired in glnA mutants. It is proposed that in A. brasilense, the PII protein and glutamine synthetase are involved in a post-translational modification of NifA.
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Banco de datos:
MEDLINE
Asunto principal:
Azospirillum brasilense
País como asunto:
America do sul
/
Brasil
Idioma:
En
Año:
1992
Tipo del documento:
Article