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Title: Regulation of 'nif' Gene Expression and Nitrogen Metabolism in 'Azospirillum'
Contributor(s): Elmerich, C (author); de Zamaroczy, M (author); Arsene, F (author); Pereg, Lily  (author); Paquelin, A (author); Kaminski, A (author)
Publication Date: 1997
DOI: 10.1016/S0038-0717(96)00228-3
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Abstract: The 'Azospirillum' genus comprises nitrogen-fixing bacteria which have been isolated from the roots of numerous grasses, including cereals, sugar cane and forage grasses. Among the five species known, 'Azospirillum brasilense' is the best documented in terms of genetics and regulation of nitrogen fixation and ammonia assimilation. Several key regulatory and structural genes have been characterized, including 'nifA', 'ntrBC', 'glnA', 'glnB' and 'rpoN'. Regulation of their expression has been studied at the free-living state and in association with wheat. A model of regulation is reported and the challenge of engineering nitrogen-fixing associations is also discussed.
Publication Type: Journal Article
Source of Publication: Soil Biology and Biochemistry, 29(5/6), p. 847-852
Publisher: Pergamon
Place of Publication: United Kingdom
ISSN: 1879-3428
Field of Research (FOR): 060503 Microbial Genetics
060504 Microbial Ecology
060799 Plant Biology not elsewhere classified
Socio-Economic Objective (SEO): 820507 Wheat
829899 Environmentally Sustainable Plant Production not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
School of Science and Technology

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