Abstract
Strain U95T (= DSM 24752T = LMG 26464T) is the type strain of Epibacterium ulvae, which is the type species of the genus Epibacterium. This genus belongs to the marine Roseobacter group. E. ulvae Strain U95T was isolated from the macroalga Ulva australis, is Gram-negative, rod-shaped and motile. Here we describe the permanent draft genome sequence and annotation of E. ulvae U95T with a focus on secondary metabolite production and interaction with its host. The genome contains 4,092,893 bp, 3977 protein-coding genes and 60 RNA genes. The genome encodes a gene cluster for synthesis of the blue-pigmented secondary metabolite indigoidine and contains several genes for adhesion mechanisms, putative bacteriocin, siderophores, a type VI secretion system, and enzymes that confer oxidative stress resistance. Combined, these features may aid in the successful colonization and persistence of E. ulvae on host surfaces and in competition with the surrounding microbial consortium.
Highlights
The genus Epibacterium was proposed by Penesyan et al, [41] and belongs to the family Rhodobacteraceae within the class Alphaproteobacteria
E. ulvae U95T was chosen for genome sequencing to aid in the characterization of potentially novel biologically active metabolites and to gain a deeper understanding of the adaptive features of this member of the Roseobacter group
The complete genome sequence has been deposited at NCBI (GenBank accession number PHJF00000000) and Integrated Microbial Genome (IMG) (Genome ID 2747842406)
Summary
The genus Epibacterium was proposed by Penesyan et al, [41] and belongs to the family Rhodobacteraceae within the class Alphaproteobacteria. The genus comprises two closely related strains (U82 and U95T) which both belong to the species Epibacterium ulvae. The name refers to the source of isolation of the strains, the surface of the alga Ulva australis. The type strain Epibacterium ulvae U95T is a motile, rod-shaped bacterium, which is oxidase and catalase positive and known to produce a so far uncharacterised antibacterial compound. E. ulvae belongs to the Roseobacter group which is ubiquitous in the marine environment and can account for up to 25% of the total marine bacterial community, e.g. in coastal sea-water [58].
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