1887

Abstract

Summary: The extractable polar lipids of have been shown to consist of glycosyldiradylglycerols, phospholipids and phosphoglycolipids. The major glycosyldiradylglycerols are -Glcp(α1-3)radylGro and -Galp(α1-2)-Glcp(α1-3)radylGro. Both glycolipids have some 1-O-(alk-1-enyl)-2-O-acyl species, in addition to diacyl species. The phospholipids include bisphosphatidylglycerol (cardiolipin), lysocardiolipin and phosphatidylglycerol (PG). In addition, several novel lipids have been found, including a PG acetal of cardiolipin plasmalogen, smaller amounts of a lyso form of this lipid, a PG acetal of PG plasmalogen, and two phosphoglycolipids, which represent 65% of total polar lipids. The latter have been identified as 2′-amino-1′,3′-dihydroxypropane-3′-P-6--Galp(α1-2)-Glcp(α1-3)radylGro and a derivative of this lipid containing an acyl chain esterified to 0-6 of the glucopyranosyl ring. Based on rRNA sequence data, is considered to be a relative of the mycoplasmas. Its unique lipid composition permits an assessment of the taxonomic status of , since the lipid amphiphiles display marked differences from those of .

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/content/journal/micro/10.1099/13500872-140-1-105
1994-01-01
2019-11-20
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/13500872-140-1-105
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