1887

Abstract

A taxonomic study was carried out on strain 22II1-22F33, which was isolated from deep seawater of the Atlantic Ocean. The bacterium was Gram-stain-negative, oxidase-positive and weakly catalase-positive, oval in shape without flagellum. Growth was observed at salinities of 0–12 % and at temperatures of 4–41 °C. The isolate was capable of hydrolysing aesculin and Tween 80 and reduction of nitrate to nitrite, but unable to hydrolyse gelatin. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 22II1-22F33 belongs to the family , with highest sequence similarity to AZO-C (96.5 %). The principal fatty acids (>10 %) were summed feature 8 (Cω7/ω6c) (73.8 %). The G+C content of the genomic DNA was 66.2 mol%. The respiratory quinone was Q-10 (100 %). Phosphatidylethanolamine (PE), phosphatidylglycerol (PG), phosphatidylcholine (PC), two unidentified aminolipids (ALs), six unidentified phospholipids (PLs) and one unidentified lipid (L) were present. The combined genotypic and phenotypic data show that strain 22II1-22F33 represents a novel species within a new genus, for which the name gen. nov., sp. nov. is proposed. The type strain of is 22II1-22F33 ( = LMG 27151 = MCCC 1A09326).

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2015-11-01
2019-10-23
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