Abstract
A Gram-stain-negative, aerobic coccus, designated CK1056T, was isolated from coastal sediment of Xiaoshi Island, Weihai, PR China. Strain CK1056T was found to grow at 15-37 °C (optimum, 30 °C), with 0.5-6.5 % (w/v) NaCl (optimum, 3.5 %) and displayed alkaliphilic growth within the pH range of pH 6.5-10.0 (optimum, pH 8.0). The major fatty acids identified were iso-C15 : 0 and summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c). The main polar lipids consisted of aminophosphoglycolipid and phosphatidylethanolamine. The predominant respiratory quinone was MK-7. The G+C content of the genomic DNA was 54.0 mol%. The result of the 16S rRNA gene sequence analysis confirmed the affiliation of this micro-organism to the family Puniceicoccaceae, with Coraliomargarita akajimensis KCTC 12865T as its closest relative with only 88.0 % sequence similarity. From the taxonomic data obtained in this study, we propose that the new marine isolate be placed into a novel species within a novel genus in the family Puniceicoccaceae, phylum Verrucomicrobia, for which the name Oceanipulchritudo coccoides gen. nov., sp. nov. is proposed. The type strain is CK1056T (=KCTC 72798T=MCCC 1H00425T).
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