1887

Abstract

A Gram-reaction-negative, aerobic, motile by gliding, non-spore-forming, rod-shaped bacterial strain, designated 122CH820-2, was isolated from spongin. This bacterium was characterized to determine its taxonomic position by using a polyphasic approach. Strain 122CH820-2 grew well at 25–30 °C on marine agar. On the basis of 16S rRNA gene sequence similarity, strain 122CH820-2 belonged to the family and was closely related to PSC33 (96.8 % sequence similarity) and P3-1 (96.7 %). Lower sequence similarities (<96.5 %) were found with all of the other recognized members of the genus . The G+C content of the genomic DNA was 35.2 mol%. The major respiratory quinone was menaquinone MK-6 and the major fatty acids were C, iso-C 3-OH, iso-C G and iso-C 3-OH. The polar lipids were phosphatidylethanolamine, one aminophospholipid and five unidentified polar lipids. Strain 122CH820-2 could be differentiated genotypically and phenotypically from recognized species of the genus . The isolate therefore represents a novel species, for which the name sp. nov. is proposed, with the type strain 122CH820-2 (=KACC 19274=LMG 30078).

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2018-04-01
2020-09-29
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