1887

Abstract

Strain F-32, which produces exopolysaccharides and contains polyunsaturated fatty acids, was isolated from a hypersaline water sample collected from Fuente de Piedra (southern Spain). Phylogenetic analyses indicated conclusively that the strain in question belonged to the genus . Phenotypic tests showed that it could be assigned to the genus although it had a number of distinctive characteristics: it is moderately halophilic, growing best with 7·5–10 % w/v NaCl; it grows at 4 °C and produces HS; it does not grow with -cellobiose, -fructose, -galactose, -glucose or lactose as sole sources of carbon and energy; and its fatty-acid profile is typical of but it also contains a large amount of an unusual acid with three double bonds [18 : 36 (6, 9, 12); 5·01 %, w/v]. The major isoprenoid quinone is Q. The DNA G+C content is 46·3 mol%. The phylogenetic, phenotypic and genetic properties of strain F-32 place it within a novel species, for which the name sp. nov. is proposed. The type strain is F-32 (=CECT 7067=LMG 22958).

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2005-11-01
2020-01-23
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