Abstract:
:A bacterial strain, designated WDS2C18T, was isolated from a marine solar saltern from the coast of Weihai, Shandong Province, China. Cells of strain WDS2C18T were long rod-shaped, red, and approximately 6.0-12.0 µm in length and 0.3-0.4 µm in width. The strain was Gram-stain-negative, facultatively anaerobic, heterotrophic, catalase-positive and oxidase-negative. Optimal growth was observed at 40 °C, at pH 7.5-8.0 with 8-12 % (w/v) NaCl. Nitrate was not reduced. Glycerol, sucrose, starch and d-mannitol stimulated growth, but not glucose, d-fructose, d-galactose, d-lactose, maltose, d-mannose, d-xylose, d-ribose, d-arabinose, l-rhamnose or cellobiose. The G+C content of the genomic DNA was 58.1 mol% (HPLC). The sole methyl naphthoquinone was MK-7 and the predominant cellular fatty acids (>10 %) were iso-C15 : 0 2-OH/C16 : 1ω7c, iso-C17 : 1ω9c, iso-C15 : 0 and iso-C17 : 0. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, glycolipid, three unidentified phospholipids and two unidentified lipids. Phylogenetic analysis, based on 16S rRNA gene sequences, demonstrated that strain WDS2C18T was affiliated with the family Rhodothermaceae. The closest related neighbours were species of the genera Salisaeta andLongimonas; strain WDS2C18T shared highest 16S rRNA gene sequence similarities with Salisaeta longa DSM 21114T (91.7 %) and Longimonas halophila SYD6T (90.8 %) and less than 90.0 % to other species of the family Rhodothermaceae. On the basis of these phenotypic and phylogenetic data, strain WDS2C18T should be classified as representing a novel species of a new genus within the family Rhodothermaceae, for which the name Longibacter salinarum gen. nov., sp. nov. is proposed. The type strain of Longibacter salinarum is WDS2C18T (=MCCC 1H00132T=KCTC 52045T).
journal_name
Int J Syst Evol Microbiolauthors
Xia J,Dunlap CA,Flor-Weiler L,Rooney AP,Chen GJ,Du ZJdoi
10.1099/ijsem.0.001190subject
Has Abstractpub_date
2016-09-01 00:00:00pages
3287-3292issue
9eissn
1466-5026issn
1466-5034journal_volume
66pub_type
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