Effect of Plasmid pIJ1008 from Rhizobium leguminosarum on Symbiotic Function of Rhizobium meliloti

Author:

Bedmar E. J.1,Brewin N. J.1,Phillips D. A.1

Affiliation:

1. Department of Agronomy and Range Science, University of California, Davis, California 95616, and John Innes Institute, Colney Lane, Norwich NR4 7UH, United Kingdom2

Abstract

Plasmid pIJ1008, which carries determinants for uptake hydrogenase (Hup) activity, was transferred from Rhizobium leguminosarum to Rhizobium meliloti without impairing the capacity of the latter species to form root nodules on alfalfa. The plasmid was still present in rhizobia reisolated from the root nodules of 12 different alfalfa cultivars, but only low levels of Hup activity were detected in alfalfa.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference15 articles.

1. Host plant effects on hydrogen evolution by Rhizobium leguminosarum;Bedmar E. J.;Plant Physiol.,1983

2. R factor transfer in Rhizobium leguminosarum;Beringer J. E.;J. Gen. Microbiol.,1974

3. Linkage mapping in Rhizobium leguminosarum by means of R plasmid-mediated recombination;Beringer J. E.;J. Gen. Microbiol.,1978

4. Variation in nitrogenase and hydrogenase activity of Alaska pea root nodules;Bethlenfalvay G. J.;Plant Physiol.,1979

5. Co-transfer of determinants for hydrogenase activity and nodulation ability in Rhizobium leguminosarum;Brewin N. J.;Nature (London),1980

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