title: Tetraether membrane lipids of Candidatus "Aciduliprofundum boonei", a cultivated obligate thermoacidophilic euryarchaeote from deep-sea hydrothermal vents.
abstract: The lipid composition of Candidatus "Aciduliprofundum boonei", the only cultivated representative of archaea falling in the DHVE2 phylogenetic cluster, a group of microorganisms ubiquitously occurring at hydrothermal vents, was studied. The predominant core membrane lipids in this thermophilic euryarchaeote were found to be composed of glycerol dibiphytanyl glycerol tetraethers (GDGTs) containing 0-4 cyclopentyl moieties. In addition, GDGTs with an additional covalent bond between the isoprenoid hydrocarbon chains, so-called H-shaped GDGTs, were present. The latter core lipids have been rarely reported previously. Intact polar lipid analysis revealed that they predominantly consist of GDGTs with a phospho-glycerol headgroup.
authors: Department of Marine Biogeochemistry and Toxicology, Royal Netherlands Institute for Sea Research, PO Box 59, 1790 AB Den Burg, Texel, The Netherlands. schouten@nioz.nl
authors: Stefan
authors: S
authors: Schouten
authors: Marianne
authors: M
authors: Baas
authors: Ellen C
authors: EC
authors: Hopmans
authors: Anna-Louise
authors: AL
authors: Reysenbach
authors: Jaap S Sinninghe
authors: JS
authors: Damsté
mesh_terms: D001105:Archaea / Q000737:chemistry / Q000378:metabolism*; D004987:Ethers / Q000032:analysis / Q000378:metabolism; D006358:Hot Temperature; D008563:Membrane Lipids / Q000032:analysis / Q000378:metabolism*; D009792:Oceans and Seas; D014871:Water Microbiology
chemical_list: D004987:Ethers; D008563:Membrane Lipids