Altererythrobacter rubellus sp. nov., a marine alphaproteobacterium isolated from seawater. Issue 11 (18th June 2019)

• Record Type: Journal Article
• Authors: Yoon, Jaewoo; Ryu, Jaewon
• Is Part Of: FEMS microbiology letters. Volume 366:Issue 11(2019)
• Publication Date: 2019-06-18
• Subjects: Alphaproteobacteria -- Altererythrobacter rubellus sp. nov -- seawater -- 16S rRNA gene -- polyphasic taxonomy; Microbiology -- Periodicals; 579
• DOI: 10.1093/femsle/fnz131
• Languages: English
• ISSNs: 0378-1097

Abstract

ABSTRACT: The phylogenetic and taxonomic status of an alphaproteobacterium isolated from seawater, collected in the Republic of Korea, was elucidated based on a polyphasic method. Strain KMU-45 T was Gram-stain-negative, strictly aerobic, rod-shaped, non-motile and chemoheterotrophic. Phylogenetic investigation based on the 16S rRNA gene sequence demonstrated that the novel marine isolate belongs to the family Erythrobacteraceae, of the class Alphaproteobacteria, and that it possessed the highest (98.7%) sequence similarity with Altererythrobacter ishigakiensis ATCC BAA-2084 T . DNA–DNA hybridization values between strains KMU-45 T and A. ishigakiensis KCTC 42446 T were 31.4% ± 8.4%. The major isoprenoid quinone of the novel isolate was ubiquinone-10 (Q-10) and the major (>10%) cellular fatty acids were C17:1 ω 8 c, C17:1 ω 6 c and C18:1 ω 7 c . The genomic DNA G + C content of strain KMU-45 T was 57.7 mol%. The polar lipid profile of the strain KMU-45 T comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine, an unidentified phospholipid and an unidentified lipid. From the polyphasic taxonomic results in this study, the bacterium can be considered to represent a new species of the genus Altererythrobacter, for which the name Altererythrobacter rubellus sp. nov. is proposed. The type species is A. rubellus sp. nov., with the type strain KMU-45 T (= KCCM 90270 T = NBRC 112769 T ). Abstract : Based on distinct phylogenetic and phenotypic evidence, the novel strain KMU-45 T represents a new species of the genus Altererythrobacter, Altererythrobacter rubellus sp. nov.