Diversity of alkaliphilic halobacteria: Proposals for transfer of Natronobacterium vacuolatum, Natronobacterium magadii, and Natronobacterium pharaonis to Halorubrum, Natrialba, and Natronomonas gen. nov, respectively, as Halorubrum vacuolatum comb nov, Natrialba magadii comb nov, and Natronomonas pharaonis comb nov, respectively
Diversity of alkaliphilic halobacteria: Proposals for transfer of Natronobacterium vacuolatum, Natronobacterium magadii, and Natronobacterium pharaonis to Halorubrum, Natrialba, and Natronomonas gen. nov, respectively, as Halorubrum vacuolatum comb nov, Natrialba magadii comb nov, and Natronomonas pharaonis comb nov, respectively
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DOI：
10.1099/00207713-47-3-853
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发表时间：
1997-07-01
期刊：
影响因子：
--
通讯作者：
Kates, M
中科院分区：
文献类型：
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作者：
Kamekura, M;DyallSmith, ML;Kates, M
本研究测定了3种嗜盐杆菌属（格氏嗜盐杆菌、法老嗜盐杆菌和空泡嗜盐杆菌）的16 S rRNA基因序列，并与先前测定的马加地嗜盐杆菌进行了比较。序列分析表明，法老嗜盐杆菌与该属的其他成员以及盐杆菌科的其他已知属在遗传学上不同。然而，空泡钠杆菌和麦加迪钠杆菌被发现分别与盐红菌属和钠菌属关系最为密切。一种未鉴定的嗜卤碱菌（菌株SSL 1）也与马加迪钠杆菌和亚洲钠杆菌密切相关。根据系统发育树的重建、各属特有的特征碱基以及16和23 S rRNA基因之间的间隔区序列，我们提出了以下改变：将Natronobacterium pharaonis转移到Natronomonas gen. nov.作为Natronomonaspharaonis gen. nov.，comb. nov.;将泡囊纳杆菌（Natronobacterium vacuolatum）归为Halorubrum属，命名为Halorubrum vacuolatum comb. nov.;和将马加地钠杆菌（Natronobacterium magadii）作为马加地钠杆菌（Natrialba magadii）转移到钠杆菌属中。
The 16S rRNA genes of three species of the genus Natronobacterium (Natronobacterium gregoryi, Natronobacterium pharaonis, and Natronobacterium vacuolatum) were sequenced and compared to that of the previously sequenced species Natronobacterium magadii. The sequences revealed that Natronobacterium pharaonis was phylogenetically distinct from the other members of the genus and also from other recognized genera of the family Halobacteriaceae. However, Natronobacterium vacuolatum and Natronobacterium magadii were found to be most closely related to the genera Halorubrum and Natrialba, respectively. An unidentified haloalkaliphile, strain SSL1, was also closely related to Natronobacterium magadii and Natrialba asiatica. On the basis of phylogenetic tree reconstructions, signature bases specific for individual genera, and sequences of spacer regions between 16 and 23S rRNA genes, we propose the following changes: Natronobacterium pharaonis to be transferred to Natronomonas gen. nov. as Natronomonas pharaonis gen. nov., comb. nov.; Natronobacterium vacaolatum to be transferred to the genus Halorubrum as Halorubrum vacuolatum comb. nov.; and Natronobacterium magadii to be transferred to the genus Natrialba as Natrialba magadii.