The Core Lipid Composition of the 17 Strains of Hyperthermophilic Archaea, Thermococcales
The Core Lipid Composition of the 17 Strains of Hyperthermophilic Archaea, Thermococcales
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DOI：
10.5650/jos.53.41
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发表时间：
2004
影响因子：
1.5
通讯作者：
A. Sugai;I. Uda;Y. Itoh;T. Itoh
中科院分区：
文献类型：
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作者：
A. Sugai;I. Uda;Y. Itoh;T. Itoh
对广古菌热球菌目Pyrococcus属3株、Thermococcus属13株和Palaeococcus属1株的核心脂质成分进行了分析。在85°C培养物中，每种菌株的主要核心脂质是caldarchaeol（二联植烷基二甘油四醚）。没有环戊烷环检测到C40类异戊二烯链caldarchaeol从任何测试菌株。在这些菌株中还检测到Archaeol（二植烷基甘油二醚），其含量为总核心脂质的5.9%至42.1%。在4株菌中检测到H型钙壁菌醇，其中两条类异戊二烯链通过共价键围绕两条类异戊二烯链的中心彼此连接，与属的分类无关。这些菌株的核心脂质谱表明，嗜热球菌属的核心脂质组成接近于广古菌中的嗜热产甲烷菌。
The core lipid compositions of the strains of the genus Pyrococcus (3 strains), Thermococcus (13 strains) and Palaeococcus (1 strain) belonging to the Order Thermococcales, Euryarchaeota were examined. In the 85°C culture, the main core lipid of every strain was caldarchaeol (dibiphytanyldiglycerol tetraether). No cyclopentane rings were detected in the C40 isoprenoid chains of caldarchaeol from any of the tested strains. Archaeol (diphytanylglycerol diether) was also detected in these strains, and the contents were 5.9% to 42.1% for the total core lipids. The H-type caldarchaeol in which two isoprenoid chains were linked to each other by a covalent bond around the center of both isoprenoid chains was detected in 4 strains, with no relationship to the classification of the genera. The profile of the core lipids in these strains showed that the core lipid composition of Thermococcales is close to that of the thermophilic methanogen in Euryarchaeota.