1887

Abstract

A Gram-negative, slightly halophilic, strictly aerobic, chemo-organotrophic bacterium was isolated from Mediterranean sea water near Valencia (Spain). Comparison of the almost complete 16S rRNA gene sequence showed that strain 4SM3 belonged to the group, with as its closest relative, with a similarity of 98·7 %. DNA–DNA hybridization analysis showed that the Mediterranean isolate had a level of relatedness of less than 42 % with and therefore that it represented a novel species of the genus . Phenotypic characteristics gave further evidence that the two organisms are not related at the species level. Isolate 4SM3 grows on solid media as irregular pink–red colonies that penetrate into the agar. Cells are rods, motile by a tuft of polar flagella. The DNA base composition is 64·6 mol% G+C. Morphological, physiological and genotypic differences from related species support the description of a novel species, sp. nov., with strain 4SM3 (=CECT 5088=DSM 16279) as the type strain.

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2005-03-01
2019-10-18
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vol. , part 2, pp. 649 - 653

Transmission electron micrographs (A-C), showing the polar flagella arrangement of strain 4SM3 , and scanning electron micrographs (D-H), where cell morphology and binary division can be appreciated. [PDF](791 KB)



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