PMID: 11934495Apr 6, 2002Paper

A major chemotaxis gene cluster in Azospirillum brasilense and relationships between chemotaxis operons in alpha-proteobacteria

FEMS Microbiology Letters
Dieter HauwaertsIgor B Zhulin

Abstract

Azospirillum brasilense shows chemotaxis to a variety of nutrients and oxygen. Genes encoding the central signal transduction pathway in chemotaxis were identified by phenotypic complementation of generally non-chemotactic mutants. Sequencing of a DNA fragment, which complemented two different mutants, revealed a region of five open reading frames translated in one direction and encoding homologs of known genes comprising excitation and adaptation pathways for chemotaxis in other bacterial species. The major chemotaxis gene cluster appears to be essential for all known behavioral responses that direct swimming motility in A. brasilense. Phylogenetic and genomic analysis revealed three groups of chemotaxis operons in alpha-proteobacterial species and assigned the A. brasilense operon to one of them. Interestingly, operons that are shown to be major regulators of behavior in several alpha-proteobacterial species are not orthologous.

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Citations

Jan 5, 2012·PLoS Genetics·Florence Wisniewski-DyéIgor B Zhulin
Apr 3, 2004·Proceedings of the National Academy of Sciences of the United States of America·Thomas J LyonsDavid J Eide
Jul 27, 2002·Journal of Bacteriology·Abel FerrándezCaroline S Harwood
Sep 18, 2004·Journal of Bacteriology·Suzanne E Greer-PhillipsGladys Alexandre
Jun 22, 2006·Journal of Bacteriology·Bonnie B StephensGladys Alexandre
Jan 23, 2016·Plant Molecular Biology·Birgit E ScharfGladys M Alexandre
Sep 10, 2016·Microbiology·Stéphanie BorlandFlorence Wisniewski-Dyé
Jan 14, 2005·Critical Reviews in Microbiology·E SomersM Srinivasan
Feb 21, 2004·FEMS Microbiology Reviews·Gladys AlexandreIgor B Zhulin
Jan 31, 2009·FEMS Microbiology Reviews·Janmejay PandeyRakesh K Jain
May 13, 2020·Journal of Bacteriology·Timofey D ArapovBirgit E Scharf
May 11, 2021·Frontiers in Microbiology·Elena E GanusovaGladys Alexandre

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