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Symbiotic nitrogen-fixing bacterial populations trapped from soils under agroforestry systems in the Western Amazon Scientia Agricola
Jaramillo,Paula Marcela Duque; Guimarães,Amanda Azarias; Florentino,Ligiane Aparecida; Silva,Karina Barroso; Nóbrega,Rafaela Simão Abrahão; Moreira,Fatima Maria de Souza.
Cowpea (Vigna unguiculata) is an important grain-producing legume that can forego nitrogen fertilization by establishing an efficient symbiosis with nitrogen-fixing bacteria. Although inoculating strains have already been selected for this species, little is known about the genotypic and symbiotic diversity of native rhizobia. Recently, Bradyrhizobium has been shown to be the genus most frequently trapped by cowpea in agricultural soils of the Amazon region. We investigated the genetic and symbiotic diversity of 148 bacterial strains with different phenotypic and cultural properties isolated from the nodules of the trap species cowpea, which was inoculated with samples from soils under agroforestry systems from the western Amazon. Sixty non-nodulating...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Legume-nodulating bacteria; Biodiversity; Symbiotic promiscuity; Chlorophyll content.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000600004
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