Abstract
A Gram-stain-positive, yellow, aerobic, slender rod-shaped bacterial strain, designated KN1116T, was isolated from a deep-sea seamount. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain KN1116T was related to the genus Chryseoglobus and had highest 16S rRNA gene sequence identity with Chryseoglobus frigidaquae CW1T (98.5%). The predominant cellular fatty acids were anteiso-C15:0 and iso-C16:0. The quinone system for strain KN1116T comprised menaquinone MK-12, MK-11, MK-10 and MK-13. The polar lipid profile contained diphosphatidylglycerol, phosphatidylglycerol, six unknown glycolipids, two unidentified phospholipids and one unknown polar lipid. The cell-wall peptidoglycan of strain KN1116T was of the type B1β, containing 2,4-diaminobutyric acid as the diamino acid. Genome sequencing revealed the strain KN1116T has a genome size of 2.7 Mbp and a G+C content of 69.4mol%. Based on phenotypic, chemotaxonomic, phylogenetic and genomic data, strain KN1116T represents a novel species of a novel genus of the family Microbacteriaceae, for which the name Marinisubtilis pacificus gen. nov., sp. nov. is proposed. The type strain of Marinisubtilis pacificus is KN1116T (=CGMCC 1.17143T =KCTC 49299T).
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