Consulta: subjectFacets:"Azospirillum amazonense"
Registros recuperados: 8
Data/hora: 10/06/2024 13:49:07

Utilização das técnicas de ELISA e BIOLOG para estudos de diversidade intra-específica em isolados de Azospirillum amazonense associados a diferentes espécies de brachiaria.
Provedor de dados: 14
Autores: REIS JUNIOR, F. B. dos; TEIXEIRA, K. R. dos S.; REIS, V. M.
ABSTRACT: This limitation of nitrogen is considered one of the most important factors influencing the Brazilian pastures degradation. However there are evidences that pastures formed by some species of the Brachiaria genus could be benefited by the biological fixation (BNF), guaranteeing a higher longevity to these pastures. Previous studies showed that the diazotrophic bacteria found in association with these forage grasses were mainly from the Azospirillum amazonense species. Since associations between these microorganisms and plants are generally conditioned by the vegetation, it is possible that different Brachiaria genotypes can exercise a selective effect on the Azospirillum populations. The aim of this work was to study the intra-specific diversity...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Feed grasses.; Bactéria; Capim Brachiaria; Fixação de Nitrogênio; Gramínea Forrageira; Microbiologia do Solo.; Azospirillum amazonense; Nitrogen fixation; Microbiology; Soil.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568168

Utilizacao do sistema BIOLOG para avaliacao da diversidade intraespecifica de isolados de Azospirillum amazonense oriundos da associacao de diferentes especies de brachiaria.
Provedor de dados: 14
Autores: REIS JUNIOR, F. B. dos; SILVA, M. F. da; TEIXEIRA, K. R. dos S.; URQUIAGA, S.; REIS, V. M.
bitstream/CPAC-2009/24156/1/p2002_41.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bactéria; Fixação de Nitrogênio; Microbiologia do Solo; Pastagem.; Azospirillum amazonense; Pastures; Microbiology; Nitrogen fixation; Soil.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567463

Análises de restrição do DNA Ribossomal Amplificado (ARDRA) em estudos de diversidade intra-específica de Azospirillum amazonense isolado de diferentes espécies de brachiaria.
Provedor de dados: 14
Autores: REIS JÚNIOR, F. B. dos; TEIXEIRA, K. R. dos S.; REIS, V. M.
ABSTRACT: The limitation of nitrogen is considered one of the most important factors for the Brazilian pastures degradation. However there are evidences that pastures formed by some species of Brachiaria could be benefited by the biological nitrogen fixation (BNF) guaranteeing a higer longevity to these pastures. Previus studies showed that the diazotrophic bacteria found inassociation with Brachiaria were mainly from the Azospirillum amazonense specie. Since associations between these microorganisms and plants are generally conditioned by the vegetation, it is possible that different Brachiaria genotypes can exercise a selective effect on the Azospirillum populations. The aim of this work was to study the intra-specific diversity of A. amazonense isolates...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Feed grasses; Diazotropic bacteria.; Bactéria; Capim Brachiaria; Fixação de Nitrogênio; Gramínea Forrageira; Microbiologia do Solo.; Azospirillum amazonense; Microbial ecology; Pastures; Nitrogen fixation; Microbiology; Soil.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569406

Comportamento de dois genótipos de milho sob diferentes doses e formas de nitrogênio e inoculação com Azospirillum amazonense em um ensaio de casa-de-vegetação.
Provedor de dados: 14
Autores: REIS JÚNIOR, F. B.; MACHADO, C. T. T.; MACHADO, A. T.; ROLIM, L.; SODEK, L.
bitstream/CPAC-2009/26798/1/p2005_10.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Maize.; Bactéria; Inoculação; Microbiologia do Solo; Milho; Zea Mays.; Azospirillum amazonense; Inoculation methods; Microbiology; Soil.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569425

Comportamento de duas variedades de milho sob diferentes níveis de fósforo e inoculação com Azospirillum amazonense em um ensaio de casa-de-vegetação.
Provedor de dados: 14
Autores: REIS JÚNIOR, F. B.; MACHADO, C. T. T.; ROLIM, L.; VILELA, A. L.; SANTOS, A. B. dos; MENDES, I. C.; MACHADO, A. T.
bitstream/CPAC-2009/26887/1/p2005_63.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Maize.; Bactéria; Inoculação; Milho; Microbiologia do Solo; Zea Mays.; Azospirillum amazonense; Inoculation methods; Microbiology; Soil.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569494

Associação de bactérias promotoras de crescimento de plantas do gênero Azospirillum com diferentes espécies de brachiaria.
Provedor de dados: 14
Autores: REIS JÚNIOR, F. B. dos; TEIXEIRA, K. R. dos S.; URQUIAGA, S.; REIS, V. M.
ABSTRACT: The limitation of nitrogen is considered one of the most important factors to the pastures degradation. However there are evidences that pastures formed by some species of the genus Brachiaria could be benefit with the biological nitrogen fixation process (BNF), guaranteeing to these pastures higher longevity. The diazotrophic bacteria founded in association with these forage grasses were mainly species from the Azospirillum genus. The associations between these microrganisms and the plants are generally conditioned to the vegetation, therefore is possible that different genotypes of Brachiaria exercise a selective efffect on the populations of these, what could result in different BNF contributions. It was objectified to establish the influence...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Degredação.; Bactéria; Brachiaria; Fixação de Nitrogênio; Microbiologia do Solo; Pastagem.; Azospirillum amazonense; Degradation; Nitrogen fixation; Pastures; Microbiology; Soil.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567997

Partial characterization of nif genes from the bacterium Azospirillum amazonense
Provedor de dados: 56
Autores: Potrich,D.P.; Passaglia,L.M.P.; Schrank,I.S.
Azospirillum amazonense revealed genomic organization patterns of the nitrogen fixation genes similar to those of the distantly related species A. brasilense. Our work suggests that A. brasilense nifHDK, nifENX, fixABC operons and nifA and glnB genes may be structurally homologous to the counterpart genes of A. amazonense. This is the first analysis revealing homology between A. brasilense nif genes and the A. amazonense genome. Sequence analysis of PCR amplification products revealed similarities between the amino acid sequences of the highly conserved nifD and glnB genes of A. amazonense and related genes of A. brasilense and other bacteria. However, the A. amazonense non-coding regions (the upstream activator sequence region and the region between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Azospirillum amazonense; Nif genes; GlnB; 16S rDNA.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000900002

Survival of endophytic diazotrophic bacteria in soil under different moisture levels
Provedor de dados: 58
Autores: Oliveira,André L.M.; Canuto,Erineudo L.; Silva,Edmilson E.; Reis,Veronica M.; Baldani,José I.
The effects of soil moisture on the survival of three diazotrophic bacteria species (Azospirillum amazonense, Gluconacetobacter diazotrophicus and Azospirillum brasilense) were tested. Soil moisture had little influence on the survival of A. brasilense, which is considered a free-living species. On the other hand, increased soil moisture extended the survival of the endophytes A. amazonense and G. diazotrophicus. These results indicate that nitrogen-fixing endophytic species are more affected by soil moisture than associative nitrogen-fixing species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endophytic bacteria; Soil survival; Gluconacetobacter diazotrophicus; Azospirillum amazonense; Azospirillum brasilense.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000300005