Nuttall S D, Dyall-Smith M L
Department of Microbiology, University of Melbourne, Parkville, Victoria, Australia.
Int J Syst Bacteriol. 1993 Oct;43(4):729-34. doi: 10.1099/00207713-43-4-729.
A novel halophilic archaeon, strain Ch2, was isolated from a marine solar saltern in Geelong, Australia. The fact that this organism had a dam-methylated genome suggested that it is closely related to the taxon that includes Halobacterium saccharovorum, Halobacterium sodomense, and Halobacterium trapanicum. A sequence analysis of the 16S rRNA gene (Ch2 has three copies of this gene) showed that Ch2 is phylogenetically equidistant from the genera Haloarcula and Haloferax and closely related to H. saccharovorum. The susceptibility of both Ch2 and H. saccharovorum to the recently isolated halophage HF2 supported the hypothesis that these two organisms are closely related.
从澳大利亚吉朗的一个海洋太阳能盐场中分离出了一种新型嗜盐古菌，菌株Ch2。该生物体具有甲基化的基因组这一事实表明，它与包括嗜糖盐杆菌、索多姆盐杆菌和特拉帕尼盐杆菌在内的分类群密切相关。对16S rRNA基因（Ch2有该基因的三个拷贝）的序列分析表明，Ch2在系统发育上与盐盒菌属和嗜盐栖热菌属的距离相等，且与嗜糖盐杆菌密切相关。Ch2和嗜糖盐杆菌对最近分离出的嗜盐噬菌体HF2的敏感性支持了这两种生物体密切相关的假设。
