Pseudomarimonas arenosa gen. nov., sp. nov. isolated from marine sand

초록

A novel Gram-negative, aerobic, non-motile, rod-shaped, bacterial strain (CAU 1598T) was isolated from marine sand. Strain CAU 1598T grew well at 30 °C, pH 6.5–7.0 and with 3 % NaCl (w/v). Phylogeny results based on 16S rRNA gene sequencing indicated that the identified strain had the highest similarity (94.3%) to Pseudoxanthomonas putridarboris, indicating that strain CAU 1598T belongs to the family Xanthomonadaceae. Further, the fatty acid profile of the strain was primarily composed of C16:0, iso-C15: 0, iso-C16: 0, summed feature 3 (consisting of C16: 1 ω7c/iso-C15: 0 2-OH) and summed feature 9 (consisting of iso-C17: 1 ω9c and/ or C16: 0 10-methyl), with ubiquinone-8 as the major isoprenoid quinone. The polar lipid profile included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphoglycolipid, an unidentified aminolipid and an unidentified lipid. The G+C content of the bacterial genome was 62.6 mol% and its 5.4 Mb length encompassed 144 contigs and 4236 protein-coding genes. These phenotypic, chemotaxonomic and phylogenetic data indicate that CAU 1598T belongs to a new genus and species, for which the name Pseudomarimonas arenosa gen. nov., sp. nov. is proposed. The type strain is CAU 1598T (=KCTC 82406T=MCCC 1K05673T). © 2021 The Authors.

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