Biology and Fertility of Soils

, Volume 39, Issue 4, pp 292–294

The effect of rhizobiophages on Sinorhizobium meliloti - Medicago sativa symbiosis

  • Mieczysław Kowalski
  • Wanda Małek
  • Jadwiga Czopska-Dolecka
  • Małgorzata Szlachetka
Short Communication

Abstract

Using Tn5 mutagenesis of lysogenic Sinorhizobium meliloti strain L5–30 (φL54), three neomycin-resistant transconjugants differing in phage-resistance profiles were isolated. Two of them increased the dry weight of plants and were capable of establishing root nodules, whereas the third one was ineffective. The bacterium-phage interaction did not have observable consequences in the Medicago sativa - S. meliloti symbiosis because it did not affect the number of nodules on M. sativa or plant dry weight.

Keywords

Alfalfa  Medicago sativa Nitrogen fixation Phage resistance Rhizobiophages 

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Mieczysław Kowalski
    • 1
  • Wanda Małek
    • 1
  • Jadwiga Czopska-Dolecka
    • 1
  • Małgorzata Szlachetka
    • 1
  1. 1.Department of General MicrobiologyM. Curie-Skłodowska UniversityLublinPoland

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