Numerical taxonomic study of thermophilic Bacillus isolated from three geographically separated deep‐sea hydrothermal vents
Numerical taxonomic study of thermophilic Bacillus isolated from three geographically separated deep‐sea hydrothermal vents
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DOI：
10.1111/j.1574-6941.1996.tb00122.x
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发表时间：
1996-12
影响因子：
4.2
通讯作者：
V. Marteinsson;J. Birrien;C. Jeanthon;D. Prieur
中科院分区：
文献类型：
--
作者：
V. Marteinsson;J. Birrien;C. Jeanthon;D. Prieur
对从三个地理上分离的深海热液喷口（大西洋中脊、瓜伊马斯盆地和劳盆地）新分离的80个菌株和代表11个芽孢杆菌属物种的11个嗜热参考菌株进行了数值分类研究。深海分离物均为耐盐芽孢杆菌，在65°C以上需氧生长。从简单匹配系数的相似性矩阵的未加权平均连锁聚类分析的结果显示，形成9个主要的现象，这是在83%或以上的相似性水平定义。7个phena完全由来自同一地点的菌株组成（4个来自大西洋中脊，1个来自瓜伊马斯盆地，2个来自Lau盆地）。大多数的Lau盆地的菌株与6个参考菌株聚在一个表型中，而从大西洋中脊和瓜伊马斯盆地的菌株被发现从这个表型分离在69%的相似性水平。其他参考菌株与深海分离株的相似性低于69%。
A numerical taxonomic study has been carried out with 80 strains, newly isolated, from three geographically separated deep-sea hydrothermal vents (Mid-Atlantic Ridge, Guaymas Basin and Lau Basin) and eleven thermophilic reference strains representing 11 Bacillus species. The deep-sea isolates were all halotolerant spore-forming rods and grew aerobically above 65°C. Results from unweighted average linkage cluster analysis of a similarity matrix derived from the simple matching coefficient, showed formation of nine major phena, which were defined at the 83% similarity level or above. Seven phena were composed exclusively of strains isolated from the same site (4 from Mid-Atlantic Ridge, 1 from Guaymas Basin and 2 from Lau Basin). The majority of the Lau Basin isolates clustered with 6 of the reference strains in one phenon, while isolates from Mid-Atlantic Ridge and Guaymas Basin were found separated from this phenon at the 69% similarity level. The other reference strains showed less than 69% similarity with the deep-sea isolates.