1 research outputs found
Genetic diversity and symbiotic efficiency of rhizobial isolates obtained from nodules of Arachis hypogaea in northwestern Morocco
5 pages and figuresThe molecular characterization of 62 rhizobial isolates obtained from root-nodules of Arachis hypogaea
growing in north-western Morocco was performed. Bacteria were firstly characterized by restriction of
the 16S-rDNA region, and phylogeny was inferred from 16S gene sequences. Phylogenetically, isolates
were grouped with species belonging to the Bradyrhizobium and Rhizobium genera. A high degree of
variability was detected among isolates in terms of their nitrogen-fixing ability. This is, to our knowledge,
the first study on genetic diversity and symbiotic effectiveness of rhizobia isolated from peanut nodules
grown in Morocco. This characterization provides a basis for the selection of peanut-nodulating rhizobia
which may have applications in the formulation of appropriate inocula to improve peanut crop yield on
Moroccan soils.Peer reviewe