Arcticibacterium luteifluviistationis SM1504T was isolated from Arctic surface seawater and classified as a novel genus of the phylum Bacteroides. To date, no Arcticibacterium genomes have been reported, their genomic compositions and metabolic features are still unknown. Here, we reported the complete genome sequence of A. luteifluviistationis SM1504T, which comprises 5,379,839 bp with an average GC content of 37.20%. Genes related to various stress (such as radiation, osmosis and antibiotics) resistance and gene clusters coding for carotenoid and flexirubin biosynthesis were detected in the genome. Moreover, the genome contained a 245-kb genomic island and a 15-kb incomplete prophage region. A great percentage of proteins belonging to carbohydrate metabolism especially in regard to polysaccharides utilization were found. These related genes and metabolic characteristics revealed genetic basis for adapting to the diverse extreme Arctic environments. The genome sequence of A. luteifluviistationis SM1504T also implied that the genus Arcticibacterium may act as a vital organic carbon matter decomposer in the Arctic seawater ecosystem.

中文翻译：

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从北极表层海水中分离出的食虫科细菌，lutectfluviistationis SM1504 ^T的完整基因组序列

从北极表层海水中分离出黄tic杆菌SM1504T，并将其归类为拟杆菌门的新属。迄今为止，尚无Arcticibacterium基因组的报道，其基因组组成和代谢特征仍然未知。在这里，我们报告了A. luteifluviistationis SM1504T的完整基因组序列，该序列包含5,379,839 bp，平均GC含量为37.20％。在基因组中检测到与各种压力（例如辐射，渗透和抗生素）抗性相关的基因以及编码类胡萝卜素和柔红素生物合成的基因簇。此外，基因组包含一个245kb的基因组岛和一个15kb的不完整噬菌体区域。发现很大一部分属于碳水化合物代谢的蛋白质，特别是在多糖利用方面。这些相关基因和代谢特征揭示了适应各种极端北极​​环境的遗传基础。luteifluviistationis SM1504T的基因组序列也暗示了北极杆菌属可能是北极海水生态系统中重要的有机碳物质分解剂。