Novosphingobium aquimarinum sp. nov., isolated from seawater

Author:

Le Ve Van12,Ko So-Ra2,Lee Sang-Ah12ORCID,Jin Long3ORCID,Ahn Chi-Yong12ORCID,Oh Hee-Mock12

Affiliation:

1. Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea

2. Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea

3. College of Biology and the Environment, Co-Innovation Centre for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210-037, PR China

Abstract

A novel Gram-stain-negative, aerobic, and rod-shaped bacterial strain, M24A2MT, was isolated from seawater in the Republic of Korea. On the basis of the 16S rRNA gene phylogeny, strain M24A2MT was found to be closely related to Novosphingobium pentaromativorans US6-1T and Novosphingobium mathurense SM117T with pair-wise sequence similarities of 97.4 and 96.9 %, respectively. Phylogenetic analysis of 16S rRNA sequences indicated that M24A2MT formed a branch with Novosphingobium pentaromativorans US6-1T and represented a member of the genus Novosphingobium . The predominant cellular fatty acids were C14 : 0 2-OH, summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c), and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). The polar lipids of strain M24A2MT consisted mainly of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, one unidentified phospholipid, and two unidentified lipids. The respiratory quinone was ubiquinone Q-10. The genomic DNA G+C content was 63.9 %. Given the phenotypic characteristics along with the phylogenetic distinctness and chemotaxonomic features, strain M24A2MT is considered to represent a novel species within the genus Novosphingobium , for which the name Novosphingobium aquimarinum sp. nov. is proposed. The type strain of Novosphingobium aquimarinum sp. nov. is M24A2MT (=KCTC 72894T=JCM 33983T).

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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