Oligotrophic marine bacterim. Oligobacter sp. SKA48

Oligobacter sp. strain SKA48. Oligobacter sp. strain SKA48 was isolated from seawater obtained at a depth of 2 to 5 meters from the Skagerrak Sea in the north Atlantic Ocean. This organism is a member of the SAR11 group of bacteria. Oligobacter sp. strain SKA48 is small, slow growing, and unable to form colonies on agar medium. In addition, this organism has been to shown to have a highly efficient nutrient uptake mechanism. These characteristics may allow this organism to better exploit the low concentrations of dissolved and particulate organic matter present in the open ocean, and may account for the ubiquity of Oligobacter sp. and other members of the SAR11 clade in ocean waters. This organism will be used for comparative genomics with other marine microorganisms.

寡杆菌属未定种（Oligobacter sp.）菌株SKA48分离自北大西洋斯卡格拉克海2至5米深度的海水样本。该菌株隶属于细菌SAR11类群（SAR11），其个体微小、生长缓慢，且无法在琼脂培养基上形成菌落。此外，该菌株被证实拥有一套高效的营养摄取机制。上述特性使其能够更好地利用开放海洋中低浓度的溶解态与颗粒态有机质，这也解释了寡杆菌属及SAR11演化支其他成员在海洋水体中广泛分布的原因。该菌株将被用于与其他海洋微生物的比较基因组学研究。