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. 1988 Feb;170(2):1003–1006. doi: 10.1128/jb.170.2.1003-1006.1988

All nod genes of Rhizobium meliloti are involved in alfalfa nodulation by exo mutants.

S Klein 1, G C Walker 1, E R Signer 1
PMCID: PMC210757  PMID: 3338972

Abstract

Nodulation of alfalfa by exoB mutants of Rhizobium meliloti occurred without root hair curling or infection thread formation. nod exoB double mutants had the same nodulation deficiency as single nod mutants. Therefore, all the known nod genes are involved in nodule induction by exoB mutants, which apparently occurs via intercellular invasion.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Aguilar O. M., Kapp D., Pühler A. Characterization of a Rhizobium meliloti fixation gene (fixF) located near the common nodulation region. J Bacteriol. 1985 Oct;164(1):245–254. doi: 10.1128/jb.164.1.245-254.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. De Vos G. F., Walker G. C., Signer E. R. Genetic manipulations in Rhizobium meliloti utilizing two new transposon Tn5 derivatives. Mol Gen Genet. 1986 Sep;204(3):485–491. doi: 10.1007/BF00331029. [DOI] [PubMed] [Google Scholar]
  3. Debellé F., Rosenberg C., Vasse J., Maillet F., Martinez E., Dénarié J., Truchet G. Assignment of symbiotic developmental phenotypes to common and specific nodulation (nod) genetic loci of Rhizobium meliloti. J Bacteriol. 1986 Dec;168(3):1075–1086. doi: 10.1128/jb.168.3.1075-1086.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Downie J. A., Johnston A. W. Nodulation of legumes by Rhizobium: the recognized root? Cell. 1986 Oct 24;47(2):153–154. doi: 10.1016/0092-8674(86)90436-8. [DOI] [PubMed] [Google Scholar]
  5. Evans I. J., Downie J. A. The nodI gene product of Rhizobium leguminosarum is closely related to ATP-binding bacterial transport proteins; nucleotide sequence analysis of the nodI and nodJ genes. Gene. 1986;43(1-2):95–101. doi: 10.1016/0378-1119(86)90012-0. [DOI] [PubMed] [Google Scholar]
  6. Figurski D. H., Helinski D. R. Replication of an origin-containing derivative of plasmid RK2 dependent on a plasmid function provided in trans. Proc Natl Acad Sci U S A. 1979 Apr;76(4):1648–1652. doi: 10.1073/pnas.76.4.1648. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Finan T. M., Hartweig E., LeMieux K., Bergman K., Walker G. C., Signer E. R. General transduction in Rhizobium meliloti. J Bacteriol. 1984 Jul;159(1):120–124. doi: 10.1128/jb.159.1.120-124.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Finan T. M., Hirsch A. M., Leigh J. A., Johansen E., Kuldau G. A., Deegan S., Walker G. C., Signer E. R. Symbiotic mutants of Rhizobium meliloti that uncouple plant from bacterial differentiation. Cell. 1985 Apr;40(4):869–877. doi: 10.1016/0092-8674(85)90346-0. [DOI] [PubMed] [Google Scholar]
  9. Finan T. M., Kunkel B., De Vos G. F., Signer E. R. Second symbiotic megaplasmid in Rhizobium meliloti carrying exopolysaccharide and thiamine synthesis genes. J Bacteriol. 1986 Jul;167(1):66–72. doi: 10.1128/jb.167.1.66-72.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Hirsch A. M., Bang M., Ausubel F. M. Ultrastructural analysis of ineffective alfalfa nodules formed by nif::Tn5 mutants of Rhizobium meliloti. J Bacteriol. 1983 Jul;155(1):367–380. doi: 10.1128/jb.155.1.367-380.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Hirsch A. M., Drake D., Jacobs T. W., Long S. R. Nodules are induced on alfalfa roots by Agrobacterium tumefaciens and Rhizobium trifolii containing small segments of the Rhizobium meliloti nodulation region. J Bacteriol. 1985 Jan;161(1):223–230. doi: 10.1128/jb.161.1.223-230.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Horvath B., Kondorosi E., John M., Schmidt J., Török I., Györgypal Z., Barabas I., Wieneke U., Schell J., Kondorosi A. Organization, structure and symbiotic function of Rhizobium meliloti nodulation genes determining host specificity for alfalfa. Cell. 1986 Aug 1;46(3):335–343. doi: 10.1016/0092-8674(86)90654-9. [DOI] [PubMed] [Google Scholar]
  13. Jacobs T. W., Egelhoff T. T., Long S. R. Physical and genetic map of a Rhizobium meliloti nodulation gene region and nucleotide sequence of nodC. J Bacteriol. 1985 May;162(2):469–476. doi: 10.1128/jb.162.2.469-476.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Leigh J. A., Signer E. R., Walker G. C. Exopolysaccharide-deficient mutants of Rhizobium meliloti that form ineffective nodules. Proc Natl Acad Sci U S A. 1985 Sep;82(18):6231–6235. doi: 10.1073/pnas.82.18.6231. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Mulligan J. T., Long S. R. Induction of Rhizobium meliloti nodC expression by plant exudate requires nodD. Proc Natl Acad Sci U S A. 1985 Oct;82(19):6609–6613. doi: 10.1073/pnas.82.19.6609. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Noti J. D., Dudas B., Szalay A. A. Isolation and characterization of nodulation genes from Bradyrhizobium sp. (Vigna) strain IRc 78. Proc Natl Acad Sci U S A. 1985 Nov;82(21):7379–7383. doi: 10.1073/pnas.82.21.7379. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Peters N. K., Frost J. W., Long S. R. A plant flavone, luteolin, induces expression of Rhizobium meliloti nodulation genes. Science. 1986 Aug 29;233(4767):977–980. doi: 10.1126/science.3738520. [DOI] [PubMed] [Google Scholar]
  18. Putnoky P., Kondorosi A. Two gene clusters of Rhizobium meliloti code for early essential nodulation functions and a third influences nodulation efficiency. J Bacteriol. 1986 Sep;167(3):881–887. doi: 10.1128/jb.167.3.881-887.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Truchet G., Debellé F., Vasse J., Terzaghi B., Garnerone A. M., Rosenberg C., Batut J., Maillet F., Dénarié J. Identification of a Rhizobium meliloti pSym2011 region controlling the host specificity of root hair curling and nodulation. J Bacteriol. 1985 Dec;164(3):1200–1210. doi: 10.1128/jb.164.3.1200-1210.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]

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