, gen. nov, sp. nov, a new member of the isolated from seawater of Menai Straits, Wales, UK Free

Abstract

The novel Gram-negative, aerobic, non-motile, non-spore-forming, short-rod bacterium, strain C7, was isolated from a seawater sample from Menai Straits (Wales, UK) and characterized. Phylogenetic analysis of 16S rRNA gene sequences showed that this strain represented a distinct lineage within the clade of family within . The members of the genera ( GYSW-23), ( DY2-5), ( SW-277), ( HJ50 and 81-2), ( CZ-AM5) and ( BB-MW15) were the closest relatives with 16S rRNA gene sequence identities between 93.4 and 95.6 %. Strain C7 could utilize a restricted number of complex substrates with a preference for yeast extract and tryptone, which is consistent with earlier observations that peptides may serve as an important energy and carbon source for bacteria from the clade. Growth occurred in the absence of sodium ions. The isolate C7 is a mesophilic bacterium that optimally grows at 20 °C. The strain can grow under microaerophilic conditions. The major fatty acid was C d11. The only detected ubiquinone was Q10. The polar lipids of strain C7 were phosphatidylglycerol, two unknown aminolipids and three unknown lipids. The DNA G+C content of the strain was 60.0 mol%. Based on the results of the morphological, physiological and phylogenetic analyses, the new genus, gen. nov., to include the new species sp. nov., is proposed. Strain C7 (=DSM 100241, =LMG 28800) is the type and only strain of .

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2017-09-01
2024-03-29
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