1887

Abstract

A Gram-negative, aerobic, non-motile, pink-pigmented and rod-shaped strain, designated ZS3-33, was isolated from Antarctic intertidal sandy sediment. The strain grew optimally at 15 °C and with 1.0 % (w/v) NaCl. It reduced nitrate to nitrite and hydrolysed Tween 20. It could not produce bacteriochlorophyll . The predominant cellular fatty acid was Cω7 and the predominant respiratory quinone was Q-10. The major polar lipids were phosphatidylglycerol, phosphatidylcholine, two unidentified aminophospholipids and an unidentified aminolipid. Analyses of 16S rRNA gene sequences revealed that strain ZS3-33 belonged to the genus , showing 97.4 % similarity to the type strain of and 95.3 % similarity to the type strain of . Levels of gene sequence similarity between strain ZS3-33 and the type strains of and were 87.6 and 81.7 %, respectively. DNA–DNA relatedness between strain ZS3-33 and DSM 5888 was 56.6 %. The genomic DNA G+C content of strain ZS3-33 was 57.1 mol%. Based on data from this polyphasic study, strain ZS3-33 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is ZS3-33 ( = CGMCC 1.10836 = KCTC 23700). An emended description of the genus Uchino 2002 emend. Jung 2012 is also proposed.

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2013-03-01
2019-10-14
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