The influence of the specific growth rate on the lipid composition of Sulfolobus acidocaldarius.

Hot Temperature Membrane Lipids Sulfolobus acidocaldarius
Cyclopentane rings Diether lipids Specific growth rate Sulfolobus acidocaldarius Tetraether lipids

Journal

Extremophiles : life under extreme conditions
ISSN: 1433-4909
Titre abrégé: Extremophiles
Pays: Germany
ID NLM: 9706854

Informations de publication

Date de publication:
May 2020
Historique:
received: 24 10 2019
accepted: 09 03 2020
pubmed: 23 3 2020
medline: 27 5 2020
entrez: 23 3 2020
Statut: ppublish

Résumé

Archaeal lipids are constituted of two isoprenoid chains connected via ether bonds to glycerol in the sn-2, 3 position. Due to these unique properties archaeal lipids are significantly more stable against high temperature, low pH, oxidation and enzymatic degradation than conventional lipids. Additionally, in members of the phylum Crenarchaeota condensation of two (monopolar) archaeal diether lipids to a single (bipolar) tetraether lipid as well as formation of cyclopentane rings in the isoprenoid core strongly reduce permeability of the crenarchaeal membranes. In this work we show that the Crenarchaeum Sulfolobus acidocaldarius changes its lipid composition as reaction to a shift in growth rate caused by nutrient limitation. We thereby identified a novel influencing factor for the lipid composition of S. acidocaldarius and were able to determine the effect of this factor on the lipid composition by using MALDI-MS for the semi-quantification of an archaeal lipidome: a shift in the specific growth rate during a controlled continuous cultivation of S. acidocaldarius from 0.011 to 0.035 h

Identifiants

DOI: 10.1007/s00792-020-01165-1 PMID: 32200441 PMC: PMC7174258
pubmed: 32200441
doi: 10.1007/s00792-020-01165-1
pii: 10.1007/s00792-020-01165-1
pmc: PMC7174258
doi:

Substances chimiques

Membrane Lipids 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

413-420

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Auteurs

Julian Quehenberger (J)

Research Division Biochemical Engineering, Faculty of Technical Chemistry, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria.

Ernst Pittenauer (E)

Research Group for Mass Spectrometric Bio and Polymer Analytics, Faculty of Technical Chemistry, Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria.

Günter Allmaier (G)

Research Group for Mass Spectrometric Bio and Polymer Analytics, Faculty of Technical Chemistry, Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria.

Oliver Spadiut (O)

Research Division Biochemical Engineering, Faculty of Technical Chemistry, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria. oliver.spadiut@tuwien.ac.at.

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Classifications MeSH

questionsmedicales.fr › Environnement et santé publique › Environnement › Concepts météorologiques › Atmosphère › Temps (météorologie) › Température › Température élevée › The influence of the specific growth rate on...
questionsmedicales.fr › Lipides › Lipides membranaires › The influence of the specific growth rate on...
questionsmedicales.fr › Archéobactéries › Crenarchaeota › Sulfolobale › Sulfolobaceae › Sulfolobus › Sulfolobus acidocaldarius › The influence of the specific growth rate on...