کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2026856 | 1070048 | 2008 | 4 صفحه PDF | دانلود رایگان |
The 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.
Journal: Soil Biology and Biochemistry - Volume 40, Issue 11, November 2008, Pages 2911–2914