title: Characterization of Sym plasmids of Rhizobium leguminosarum strains able to nodulate Pisum sativum cv Afghanistan.
abstract: Rhizobium leguminosarum strains that can form nodules on Pisum sativum cv. Afghanistan have been reported as uncommon in Europe, North America and Africa [11, 12]. The organization of the nodulation regions of the symbiotic plasmids of five strains of R. leguminosarum originating from Denmark [9], which can nodulate P. sativum cv. Afghanistan, was compared with that of a Turkish strain (TOM [18]) by DNA hybridizations. Four of the five Danish strains were found to be very similar to the Turkish strain with respect to the overall organizations of their respective nodulation regions.
authors.affiliation: Department of Biology, Carleton University, K1S 5B6, Ottawa, Ontario, Canada.
authors.forename: J H
authors.initials: JH
authors.lastname: Nash
authors.forename: S
authors.initials: S
authors.lastname: Ma
authors.forename: V N
authors.initials: VN
authors.lastname: Iyer