Chemotaxis of Azospirillum species to aromatic compounds
- Univ. of South Carolina, Columbia, SC (United States)
Azospirillum sspeciesare free-living nitrogen fixing bacteria commonly found in soils and in association with plant roots, including important agricultural crops. Rhizosphere colonization my Azospirillum species has been shown to stimulate growth of a variety of plant species. Chemotaxis is one of the properties which may contribute to survival, rhizosphere colonization and the initiation of mutualistic interactions by Azospirillum species. This study evaluates the chemotactic responses of three Azospirillum stains to a variety of aromatic compounds:benzoate, catechol, 4-HB, and PCA. Results indicate that the same aromatic substance can elicit different chemotactic responses from different Azospirillum species, and that Azospirillum can detect aromatic substrates at concentrations similar to those they encounter naturally. 36 refs., 1 fig., 6 tabs.
- OSTI ID:
- 5812919
- Journal Information:
- Applied and Environmental Microbiology; (United States), Vol. 59:9; ISSN 0099-2240
- Country of Publication:
- United States
- Language:
- English
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