Diphytanyl and dibiphytanyl glycerol ether lipids of methanogenic archaebacteria
- Colorado State Univ., Fort Collins
The lipids of nine different methanogenic bacterial strains are comprised of diphytanyl glycerol diethers, previously known only in extremely halophilic bacteria, as well as dibiphytanyl diglycerol tetraethers, known formerly only in the extremely thermoacidophilic bacteria Thermoplasma and Sulfolobus. Of the methanogens examined from four representative taxonomic groups, Methanobacterium and Methanospirillum contained both types of isopranyl ethers in nearly equal proportions, whereas the coccal forms, Methanosarcina and Methanococcus, possessed diphytanyl glycerol diethers, but with only a trace of or no dibiphytanyl diglycerol tetraethers. The occurrence of both types of isopranyl glycerol ethers in methanogenic bacteria supports the proposal that they have a close genealogical relationship to the extremely halophilic and thermoacidophilic bacteria.
- OSTI ID:
- 5658074
- Journal Information:
- Science; (United States), Vol. 203:4375
- Country of Publication:
- United States
- Language:
- English
Similar Records
Phytanyl-glycerol ethers and squalenes in the archaebacterium Methanobacterium thermoautotrophicum
Light sensitivity of methanogenic archaebacteria