Data/hora: 04/06/2024 16:29:14

Biblioteca(s): | Embrapa Solos.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 08/10/2021
Data da última atualização: | 08/10/2021
Autoria: | BOTHE, H.; KLEIN, B.; STEPHAN, M. P.; DOBEREINER, J.
Afiliação: | M. P. STEPHAN, SNLCS; JOHANNA DOBEREINER, SNLCS.
Título: | Transformations of inorganic nitrogen by Azospirillum spp.
Ano de publicação: | 1981
Fonte/Imprenta: | Archives of Microbiology, v. 130, n. 2, p. 96-100, 1981.
DOI: | https://doi.org/10.1007/BF00411058
Idioma: | Inglês
Conteúdo: | Azospirillum spp. participate in all steps of the nitrogen cycle except nitrification. They can fix molecular nitrogen and perform assimilatory nitrate reduction and nitrate respiration. Culture conditions have been defined under which nitrate is used both as terminal respiratory electron acceptor and as nitrogen source for growth. Nitrate and, possibly to a very limited extent, nitrite, but not sulfate, iron or fumarate support anaerobic respiration. Under anaerobic conditions, nitrate can also supply energy for nitrogen fixation but without supporting growth. Nitrate-dependent nitrogenase activity lasts only for 3-4 h until the enzymes of assimilatory nitrate reduction are synthesized. Nitrite accumulates during this period and inhibits nitrogenase activity at concentrations of about 1 mM.
Thesaurus Nal: | Azospirillum; Nitrogen fixation.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (20816-1) - UPC - AP - DD -  -  -  - DIS