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Title: Biodiversity of Root-Nodule Bacteria Associated With the Leguminous Plant Biserrula pelecinus
Authors: Vicente, Claudia
Pérez-Fernández, Maria A
Pereira, Graça
Tavares-de-Sousa, Manuel
Keywords: Mesorhizobium
Biserrula pelecinus
Issue Date: Jul-2009
Publisher: Soil Science
Citation: Vicente CSL, Pérez-Fernández MA, Pereira G, Tavares-de-Sousa MM (2009) Biodiversity of Root-Nodule Bacteria Associated with the Leguminous Plant Biserrula pelecinus, Soil Science, 174, 424-429
Abstract: Biserrula pelecinus is a noteworthy forage legume known for its drought- and acid-resistant properties and nitrogen-fixing ability that forms an extremely specific symbiotic relationship with bacteria from genera Mesorhizobium. To investigate the biodiversity of root- nodule bacteria associated with B. pelecinus, a total of 88 bacterial strains were examined using repYpolymerase chain reaction amplifica- tion. The 16S rRNA gene sequencing was also used to determine the phylogenetic relationship with type strains of different genera of rhi- zobia. Our results show that although a considerable genetic variability among Biserrula isolates was found, most isolates were phylogenetically related to Mesorhizobium ciceri. Curiously, a new symbiotic partner was found to nodulate Biserrula, suggesting possible lateral gene transfer of nodulation and nitrogen fixation genes between Mesorhizobium and Rhizobium.
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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