Godfroy A, Lesongeur F, Raguénès G, Quérellou J, Antoine E, Meunier J R, Guezennec J, Barbier G
Département Environnement Profond, IFREMER, Centre de Brest, Plouzané, France.
Int J Syst Bacteriol. 1997 Jul;47(3):622-6. doi: 10.1099/00207713-47-3-622.
An extremely thermophilic archaeon, strain AL662T, was isolated from a deep-sea hydrothermal vent located on the East Pacific Rise at a latitude of 21 degrees N. This strain is a strictly anaerobic coccus, and its cells range from 0.8 to 2 microns in diameter. The optimum temperature, pH, and Sea Salt concentration for growth are 85 degrees C, 6, and 20 to 40 g/liter, respectively. Strain AL662T grows preferentially on proteolysis products, on a mixture of 20 amino acids, and on maltose in the presence of elemental sulfur. The membrane lipids consist of di- and tetraether glycerol lipids. The DNA G+C content is 58 mol%. Sequencing of the 16S rRNA gene showed that strain AL662T belongs to the genus Thermococcus. On the basis of hybridization results, we propose that this strain should be placed in a new species, Thermococcus hydrothermalis.
从位于北纬21度的东太平洋海隆的深海热液喷口中分离出了一种极端嗜热古菌，菌株AL662T。该菌株是一种严格厌氧的球菌，其细胞直径在0.8至2微米之间。生长的最适温度、pH值和海盐浓度分别为85℃、6和20至40克/升。菌株AL662T优先利用蛋白水解产物、20种氨基酸的混合物以及在元素硫存在下的麦芽糖生长。膜脂由二醚和四醚甘油脂组成。DNA的G+C含量为58摩尔%。16S rRNA基因测序表明菌株AL662T属于嗜热栖热菌属。根据杂交结果，我们建议将该菌株归入一个新物种，即热液栖热菌。
