
doi: 10.1007/bf02277369
Pisum sativum ecotype fulvum forms ineffective nodules with Rhizobium strains, isolated from effective nodules of the cultivated pea in Europe. Rhizobium strains isolated from nodules of fulvum peas in Israel are fully effective on this host plant, but in association with the cultivated pea they induce nodules of poor N2-fixing activity. The distribution of these fulvum-specific Rhizobium strains is restricted to regions where the fulvum pea occurs naturally. Rhizobium strains from other geographical regions induce mainly ineffective, or partially effective nodules on fulvum plants.
Symbiotic nitrogen fixation, Pisum sativum ecotype fulvum, Genetic variability, Gene centre, Rhizobium
Symbiotic nitrogen fixation, Pisum sativum ecotype fulvum, Genetic variability, Gene centre, Rhizobium
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