Members of the genus Pseudomonas have been frequently isolated from the marine environment, indicating their ecological role in native habitats. One bacterial strain, Pseudomonas sp. BSw22131, was isolated from seawater in Kongsfjorden, Svalbard. The bacterium can grow with algae-derived dimethylsulfoniopropionate (DMSP) as the sole carbon source. Here, we sequenced the complete genome of strain BSw22131, which contained a single circular chromosome of 5,739,290 (G + C content of 58.23 mol%) without any plasmids. A total of 5362 protein-coding genes, 65 tRNA genes, and 16 rRNA genes were obtained. Genome sequence analysis revealed that strain BSw22131 was not only a potential novel species of the genus Pseudomonas but also different from Pseudomonas sp. DMSP-1 that was isolated from the same habitat and also utilized DMSP as the sole carbon source for growth. The results can be helpful for understanding the catabolism of the genus Pseudomonas in sulfur cycling in the Arctic fjord ecosystem.

假单胞菌属的成员经常从海洋环境中分离出来，表明它们在原生栖息地中的生态作用。一种细菌菌株，假单胞菌属。BSw22131，是从斯瓦尔巴特群岛 Kongsfjorden 的海水中分离出来的。这种细菌可以以藻类衍生的二甲基磺酰基丙酸盐 (DMSP) 作为唯一碳源生长。在这里，我们对菌株 BSw22131 的完整基因组进行了测序，该菌株包含一条 5,739,290 条环状染色体（G + C 含量为 58.23 mol%），不含任何质粒。共获得5362个蛋白质编码基因、65个tRNA基因和16个rRNA基因。基因组序列分析表明，菌株 BSw22131 不仅是假单胞菌属的一个潜在新种，而且与假单胞菌_ 从同一栖息地分离出来的 DMSP-1 也利用 DMSP 作为生长的唯一碳源。该结果有助于了解假单胞菌属在北极峡湾生态系统硫循环中的分解代谢。