Abstract
The Gram-negative alphaproteobacterium Octadecabacter temperatus SB1 (DSM 26878) belongs to the marine Roseobacter clade. The genome of this strain is the smallest closed genome of the Roseobacter clade. O. temperatus SB1 is the first described nonpolar mesophilic isolate of the genus Octadecabacter and the type strain of the species.
Highlights
The Gram-negative alphaproteobacterium Octadecabacter temperatus SB1 (DSM 26878) belongs to the marine Roseobacter clade
In sea ice microbial communities (SIMCO), roseobacters are represented by the genus Octadecabacter
Octadecabacter temperatus SB1 (DSM 26878) was isolated from a surface water sample collected in the harbor of the island of Helgoland in the North Sea [4]
Summary
The Gram-negative alphaproteobacterium Octadecabacter temperatus SB1 (DSM 26878) belongs to the marine Roseobacter clade. The Roseobacter clade (family Rhodobacteraceae) is a group of exclusively marine bacteria within the alphaproteobacteria. In sea ice microbial communities (SIMCO), roseobacters are represented by the genus Octadecabacter. The nonpolar clusters are represented only by 16S rRNA gene sequences from uncultured organisms [2]. A recently described mesophilic species has been reclassified as Pseudooctadecabacter jejudonensis [3, 4].
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