{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T08:52:00Z","timestamp":1790671920001,"version":"4.1.0"},"reference-count":9,"publisher":"American Society for Microbiology","issue":"3","license":[{"start":{"date-parts":[[1982,9,1]],"date-time":"1982-09-01T00:00:00Z","timestamp":399686400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Bacteriol"],"published-print":{"date-parts":[[1982,9]]},"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.1128\/jb.151.3.1397-1402.1982","type":"journal-article","created":{"date-parts":[[2020,1,3]],"date-time":"2020-01-03T17:37:26Z","timestamp":1578073046000},"page":"1397-1402","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":47,"title":["Occurrence of alpha-tocopherolquinone and alpha-tocopherolquinol in microorganisms"],"prefix":"10.1128","volume":"151","author":[{"given":"P E","family":"Hughes","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S B","family":"Tove","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"p_1","doi-asserted-by":"crossref","first-page":"439","DOI":"10.1146\/annurev.bi.46.070177.002255","article-title":"Hydroquinone dehydrogenases. 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Lewis , D. A. Stahl , K. R. Leuhrsen , K. N. Chen , and C. R. Woese . 1980 . The phylogeny of prokaryotes . Science 209 : 457 - 463 .","journal-title":"Science"},{"key":"p_4","doi-asserted-by":"crossref","first-page":"1339","DOI":"10.1038\/1841339a0","article-title":"Tocopherols in microorganisms","volume":"184","author":"Green J.","year":"1959","unstructured":"Green , J. , S. A. Price , and L. Gare . 1959 . Tocopherols in microorganisms . Nature (London) 184 : 1339 .","journal-title":"Nature (London)"},{"key":"p_5","doi-asserted-by":"crossref","first-page":"3643","DOI":"10.1016\/S0021-9258(18)34828-2","article-title":"Biohydrogenation of unsaturated fatty acids: purification and properties of cis-9,trans-11-octadecadienoate reductase","volume":"257","author":"Hughes P. E.","year":"1982","unstructured":"Hughes , P. E. , W. J. Hunter , and S. B. Tove . 1982 . Biohydrogenation of unsaturated fatty acids: purification and properties of cis-9,trans-11-octadecadienoate reductase . J. Biol. 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