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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), pp. 369-375. (doi:10.1007/s002030100274).

Record type: Article

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%.

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Published date: 2001

Identifiers

Local EPrints ID: 41425
URI: http://eprints.soton.ac.uk/id/eprint/41425
ISSN: 0302-8933
PURE UUID: 8c432741-6bf6-47f4-ba31-64f4a9459d1d

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Date deposited: 07 Sep 2006
Last modified: 17 Jul 2017 15:30

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Contributors

Author: Micha J.A. Rijkenberg
Author: Remco Kort
Author: Klaas J. Hellingwerf

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