Complementation Analysis of Associative Bacteria Azospirillum brasilense Sp245 and S27 Defective for Motility and Flagellation

Complementation Analysis of Associative Bacteria Azospirillum brasilense Sp245 and S27 Defective... Three mutants of Azospirillum brasilense Sp245 incapable of both formation of the polar flagellum (Fla–-phenotype) and swarming in semisolid media (Swa–-phenotype) were characterized. These mutants were shown to have lost the 85-MDa plasmid and to carry the Tn5-Mob transposon and pSUP5011 vector in different regions of their genomes. With the use of A. brasilense Sp245 gene bank, the capacity for both polar flagellum formation and swarming was restored in the above mutants and in the previously generated transposon mutants A. brasilense Sp245 and S27. The transconjugants obtained were only slightly motile in the liquid culture. In the gene bank of Sp245, the recombinant plasmids carrying wild-type fla/swa loci were identified. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Complementation Analysis of Associative Bacteria Azospirillum brasilense Sp245 and S27 Defective for Motility and Flagellation

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2001 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1009033720368
Publisher site
See Article on Publisher Site

Abstract

Three mutants of Azospirillum brasilense Sp245 incapable of both formation of the polar flagellum (Fla–-phenotype) and swarming in semisolid media (Swa–-phenotype) were characterized. These mutants were shown to have lost the 85-MDa plasmid and to carry the Tn5-Mob transposon and pSUP5011 vector in different regions of their genomes. With the use of A. brasilense Sp245 gene bank, the capacity for both polar flagellum formation and swarming was restored in the above mutants and in the previously generated transposon mutants A. brasilense Sp245 and S27. The transconjugants obtained were only slightly motile in the liquid culture. In the gene bank of Sp245, the recombinant plasmids carrying wild-type fla/swa loci were identified.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 16, 2004

References

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