1887

Abstract

An alginate lyase-excreting bacterium, designated strain HB161718, was isolated from coastal sand collected from Tanmen Port in Hainan, PR China. Cells were Gram-stain-negative rods and motile with a single polar flagellum. Its major isoprenoid quinone was ubiquinone 8 (Q-8), and its cellular fatty acid profile mainly consisted of C ω7 and/or C ω6, C ω6 and/or C ω7, C, C 10-methyl and C N alcohol. The G+C content of the genomic DNA was 44.1 mol%. 16S rRNA gene sequence analysis suggested that strain HB161718 belonged to the genus , sharing 99.5, 99.4, 99.2, 98.9 and 98.5 % sequence similarities to its closest relatives, JCM 20772, 9a2, H17, SW-47 and DE, respectively. The low values of DNA–DNA hybridization and average nucleotide identity showed that it formed a distinct genomic species. The combined phenotypic and molecular features supported the conclusion that strain HB161718 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is HB161718 (=CGMCC 1.13585=JCM 32687).

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2020-01-14
2020-01-24
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