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	Provedor de dados BJM (2) Autor Paiva,Edilson (2) Seldin,Lucy (2) Oliveira,Isnia Aparecida de (1) Passos,Raul V.M. (1) Pinto,Patrícia P. (1) Raposeiras,Rui (1) Scotti,M. Rita (1) Sá,Nadja M.H. (1) Sá,Nadja Maria Horta de (1) Vargas,Milton Alexandre (1) Vasconcellos,Maria José (1) Mais... Palavra-chave Bean plants (2) Cerrado soils (2) Rhizobium leguminosarum bv. phaseoli (2) Rhizobium tropici (2) High temperature (1) Tipo do documento Info:eu-repo/semantics/article (2) Ano 2002 (1) 2000 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Random amplified polymorphic DNA analysis of effective Rhizobium sp. associated with beans cultivated in brazilian cerrado soils BJM Oliveira,Isnia Aparecida de; Vasconcellos,Maria José; Seldin,Lucy; Paiva,Edilson; Vargas,Milton Alexandre; Sá,Nadja Maria Horta de. Efficient bean nodulating Rhizobium strains, isolated from different Brazilian cerrado soils, were characterized by RAPD. This study showed great genetic heterogeneity among R. tropici and R. leguminosarum bv. phaseoli strains and allowed the constitution of genetic clusters, besides indicating the most suitable primers for this characterization. The groups of genetically distinct strains can be used in competitiveness studies to select appropriate Rhizobium strains for bean inoculation in cerrado soils. Tipo: Info:eu-repo/semantics/article Palavras-chave: Rhizobium tropici; Rhizobium leguminosarum bv. phaseoli; Bean plants; Cerrado soils. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100010 Variability of isolated colonies in bean nodulating Rhizobium strains before and after exposure to high temperature BJM Raposeiras,Rui; Pinto,Patrícia P.; Passos,Raul V.M.; Seldin,Lucy; Paiva,Edilson; Scotti,M. Rita; Sá,Nadja M.H.. Irregular response to bean plants to Rhizobium inoculation has been attributed to among other factors, low competitive ability, low N2 fixation efficiency and genetic instability of the symbiont. This genetic instability caused by high rates of genomic rearrangements and/or plasmid deletions can be accentuated by high temperatures. This fact may limit the utilization of these strains as inoculants, especially in tropical soils. In this study, the variability of isolated colonies derived from effective R. leguminosarum bv. phaseoli (SLP1.3 and BR 10.026) and R tropici (SLA2.2 and BR322) strains was evaluated before and after exposure to high temperatures (four consecutive thermal shocks at 45ºC). This evaluation involved plant dry matter analysis of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Rhizobium tropici; Rhizobium leguminosarum bv. phaseoli; Bean plants; High temperature; Cerrado soils. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000200010 Registros recuperados: 2 Primeira ... 1 ... Última

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