Alkalispirillum mobile gen. nov., spec. nov., an alkaliphilic non-phototrophic member of the Ectothiorhodospiraceae


Rijkenberg, Micha J.A., Kort, Remco and Hellingwerf, Klaas J. (2001) Alkalispirillum mobile gen. nov., spec. nov., an alkaliphilic non-phototrophic member of the Ectothiorhodospiraceae. Archives of Microbiology, 175, (5), 369-375. (doi:10.1007/s002030100274).

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Original Publication URL: http://dx.doi.org/10.1007/s002030100274

Description/Abstract

From cultures of the anoxygenic phototroph Halorhodospira halophila SL-1, an aerobic, gram-negative spirillum was isolated. This moderately halophilic, alkaliphilic bacterium was motile by means of a single polar flagellum. It is described here as Alkalispirillum mobile gen. nov., spec. nov. Phylogenetic analysis of the Alkalispirillum mobile 16S rRNA gene led to its classification in the %-subclass of the Proteobacteria, as it appears closely related to phototrophic purple sulfur bacteria of the genera Ectothiorhodospira and Halorhodospira. Surprisingly, A. mobile is an obligate aerobe. The organism grows optimally with a number of carboxylic acids (such as sodium acetate) as carbon source, at 2% (i.e. approximately 0.34 M) sodium chloride, at pH 9-10, and at temperatures ranging from 35 to 38 °C. The dominant cellular fatty acids of Alkalispirillum mobile are C12:0, C16:0, C18:1cis11, and C18:0; its G+C content is 66.2-0.5 mol%.

Item Type: Article
Related URLs:
Subjects: Q Science > QR Microbiology
Divisions: University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 41425
Date Deposited: 07 Sep 2006
Last Modified: 27 Mar 2014 18:26
URI: http://eprints.soton.ac.uk/id/eprint/41425

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