1887

Abstract

SUMMARY

A strain of able to fix nitrogen in root nodules of clover plants lost its effectiveness when treated with deoxyribonucleic acid (DNA) from an ineffective strain. Attempts to transform two ineffective strains to effectiveness failed, even when the donor of DNA and the recipient strains were genetically related and apparently differed only in symbiotic property. The efficiency of transformation by DNA to ineffectiveness was compared with mutagenic and selective treatments. The results support the idea that symbiotic effectiveness involves compatability between several plant and bacterial factors, changes in any one of which makes the bacterium ineffective.

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/content/journal/micro/10.1099/00221287-40-3-377
1965-09-01
2024-12-05
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References

  1. Balassa R. 1960; Transformation of strain of Rhizobium lupiny. Nature, Lond 188:246
    [Google Scholar]
  2. Dischk Z. 1930; Über einige neue eharakteristische Farbreaktionen der Thymonu-kleinsäure und eine Mikromethod zur Bestimmung derselben in teierischen Organen mit Hilfe dieser Reaktionen. Mikrochemie 8:4
    [Google Scholar]
  3. Gupta B. M., Kleczkowska J. 1961; A study of some mutations in a strain of Rhizobium trifolii. J. gen. Microbiol 27:473
    [Google Scholar]
  4. Kleczkowska J. 1950; A study of phage resistant mutants of Rhizobium trifolii. J. gen. Microbiol 4:298
    [Google Scholar]
  5. Kleczkowska J. 1957; The coexistence of Rhizobium trifolii and its bacteriophage in artificial soil mixtures. Report of Roth. Exp. Sta78
    [Google Scholar]
  6. Kleczkowska J. 1958; Phage induced changes in Rhizobium. Report of Roth. Exp. Sta72
    [Google Scholar]
  7. Nutman P. S. 1946; Variation within strains of clover nodule bacteria in the size of nodule produced and in the effectivity of the symbiosis. J. gen. Microbiol 51:411
    [Google Scholar]
  8. Nutman P. S. 1954a; Symbiotic effectiveness in nodulated red clover. I. Variation in host and bacteria. Heredity 8:35
    [Google Scholar]
  9. Nutman P. S. 1954 b; Symbiotic effectiveness in nodulated red clover. II. A major gene for ineffectiveness in the host. Heredity 8:47
    [Google Scholar]
  10. Skinner F. A., Walker N. 1962; Continuous culture apparatus. Arch. Mikrobiol 38:339
    [Google Scholar]
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