1887

Abstract

Eight strains of Gram-negative, bacteroid-shaped, prosthecate bacteria, isolated from brackish water (MCS24, MCS17 and MCS35), the marine environment (CM260, CM272 and CM282) and activated sludge (FWC40 and FWC43), were characterized using a polyphasic approach. Analysis of 16S rRNA gene sequences determined that all strains were affiliated to the alphaproteobacterial genus , forming three distinct phyletic lineages within the genus. The strains grew best with 5–30 g NaCl l at 20–30 °C. DNA G+C contents for strains MCS24, FWC40 and FWC43 were between 65 and 67 mol%, in accordance with values reported previously for other species of the genus. Moreover, chemotaxonomic data and physiological and biochemical tests allowed the phenotypic differentiation of three novel species within the genus , for which the names sp. nov. (type strain MCS24 =LMG 25346 =CCUG 58273), sp. nov. (type strain FWC40 =LMG 25261 =CCUG 57883) and sp. nov. (type strain FWC43 =LMG 25262 =CCUG 57884) are proposed.

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2010-08-01
2019-10-21
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Supplements

vol. , part 8, pp. 1837 - 1843

Dendrogram of phylogenetic relationships between sp. nov. FWC40 , sp. nov. FWC43 , sp. nov. MCS24 (and five other strains) and all recognized type species of the genus based on a distance matrix analysis of 16S rRNA gene sequences using the UPGMA algorithm.

Phospho- and sulfolipids identified by MS/MS in species.

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