sp. nov., sp. nov. and sp. nov., prosthecate bacteria from aquatic habitats Free

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
2024-03-29
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