Polar Lipids of Archaebacteria in Sediments and Petroleums

  title={Polar Lipids of Archaebacteria in Sediments and Petroleums},
  author={Bertrand Chappe and Pierre Albrecht and Walter Michaelis},
  pages={65 - 66}
Glycerol tetraethers with head-to-head isoprenoid 40-carbon chains that are typical of archaebacteria, in particular of methanogens, were identified in the polar lipids of sediments and petroleums. These structures are at least partially preserved in the subsurface beyond the stage of petroleum formation. Their identification provides further evidence that a significant part of geological organic matter derives from the lipids of membranes of microorganisms. 

Ether lipids of planktonic archaea in the marine water column

Compound-specific isotope analyses of the carbon skeletons suggest that planktonic archaea utilize an isotopically heavy carbon source such as algal carbohydrates and proteins or dissolved bicarbonate.

Dibiphytanyl Ether Lipids in Nonthermophilic Crenarchaeotes

ABSTRACT The kingdom Crenarchaeota is now known to include archaea which inhabit a wide variety of low-temperature environments. We report here lipid analyses of nonthermophilic crenarchaeotes, which

Bacteriohopanetetrol from chemical degradation of an oil shale kerogen

Microbial lipids play an important role in the formation of geologically derived organic matter1. Among these lipids the hopanoids have a key function as they show an almost ubiquitous occurrence in



Novel complex polar lipids from the methanogenic archaebacterium Methanospirillum hungatei.

The methanogenic archaebacterium Methanospirillum hungatei contains two unusual phosphoglycolipids that account for 64 percent of the total cellular lipids and may function as covalently bonded lipid bilayers to impart stability and rigidity to methanogen membranes.

Ether-containing lipids of methanogenic bacteria.

  • R. MakulaM. Singer
  • Biology, Chemistry
    Biochemical and biophysical research communications
  • 1978

Diphytanyl and dibiphytanyl glycerol ether lipids of methanogenic archaebacteria.

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.

Specific acyclic isoprenoids as biological markers of methanogenic bacteria in marine sediments

The first recognition of 2,6,10,15,19,19-pentamethyleicosane (II), a known component of methanogens5, 6, in marine sediments of Recent to Cretaceous age is reported and it is suggested that it and certain other acyclic isoprenoids may be used as biological markers for meethanogens.

Head-to-Head Linked Isoprenoid Hydrocarbons in Petroleum

A series of petroleum isoprenoid hydrocarbons possessing an unusual head-to-head linkage is present as an important component in petroleum, produced by diagenesis or catagenesis from precursors containing 40 carbon atoms.

Molecular evolution of biomembranes: structural equivalents and phylogenetic precursors of sterols.

The biophysical function of membrane optimizers appears to have evolved toward sterols by changes limited to only a few enzymatic steps of the same fundamental biosynthetic processes.

The Hopanoids: palaeochemistry and biochemistry of a group of natural products

Hopanoids are shown to be widely distributed among Bacteria and Cyanobacteria, and their function in cells is probably equivalent to that of sterols in the eucaryote cell : to act as optimizers of the fluid lipid membranes.