OCCURRENCE OF ALPHA-TOCOPHEROLQUINONE AND ALPHA-TOCOPHEROLQUINOL IN MICROORGANISMS
OCCURRENCE OF ALPHA-TOCOPHEROLQUINONE AND ALPHA-TOCOPHEROLQUINOL IN MICROORGANISMS
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DOI：
10.1128/jb.151.3.1397-1402.1982
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发表时间：
1982-01-01
影响因子：
3.2
通讯作者：
TOVE, SB
中科院分区：
文献类型：
--
作者：
HUGHES, PE;TOVE, SB
α-生育酚醌和α-生育酚醌被发现在56的93株微生物检查。含有这些化合物的生物体包括真核细菌、裸藻和蓝细菌（蓝绿细菌）、32属中的22属和9属酵母。在细菌和酵母中，醌和氢醌的水平几乎相等，平均约3纳摩尔的每种化合物g-1的压缩细胞。在含有这些化合物的细菌中，有三种来自新提出的古细菌界。那些不含α-生育酚醌或α-生育酚醌的微生物倾向于分为两组。第一组由革兰氏阳性、厌氧或兼性细菌组成，鸟嘌呤和胞嘧啶含量低，第二组包括所有研究的丝状微生物。α-生育酚醌或其醌除了作为仅可由少数生物体进行的不饱和脂肪酸生物氢化中的辅因子外，没有已知的代谢功能。
Both alpha-tocopherolquinol and alpha-tocopherolquinone were found in 56 of 93 strains of microorganisms examined. Organisms that contained these compounds included the single example of a eucaryotic alga, a Euglena, and a cyanobacterium (blue-green alga), 22 of 32 genera of bacteria, and 9 genera of yeasts. In the bacteria and yeasts the levels of quinone and hydroquinone were nearly equal and averaged about 3 nmol of each compound g-1 of packed cells. Included among the bacteria that contained these compounds were three examples from the newly proposed kingdom of Archaebacteriae. Those microorganisms that did not contain alpha-tocopherolquinol or alpha-tocopherolquinone tended to fall into two groups. One group consisted of gram-positive, anaerobic or facultative bacteria with a low content of guanine and cytosine, and the second group encompassed all of the filamentous microorganisms studied. No metabolic function is known for alpha-tocopherolquinol or its quinone other than as a cofactor in the biohydrogenation of unsaturated fatty acids that can be carried out by only a few organisms.