Effect of growth temperature and growth phase on the lipid composition of the archaeal membrane from Thermococcus kodakaraensis

Bioscience, Biotechnology, and Biochemistry
Yasuhiko MatsunoShinsuke Fujiwara

Abstract

Archaea have unique membrane lipids typified by ether linkages of the glycerol-to-isoprenoid chains with sn-2,3 stereochemistry that runs against the naturally occurring sn-1,2 stereochemistry of the glycerophospholipids of Bacteria and Eukarya. Membrane lipids were extracted and analyzed from the hyperthermophilic archaeon, Thermococcus kodakaraensis, cultivated at various temperatures. At all growth temperatures examined, both the diphytanylglycerol diether (archaeol, C(20)) and diphytanyldiglycerol tetraether (caldarchaeol, C(40)) were identified as saturated forms, and no other lipids could be identified. The ratio of caldarchaeol to archaeol increased with increasing growth temperature, particularly at 93 degrees C. A larger amount of archaeol was detected from cells in the logarithmic phase than from those in the stationary phase at all temperatures examined. These results indicate that T. kodakaraensis modulated the membrane lipid composition depending on both the growth phase and the growth temperature, and suggest that the membrane fluidity to environmental change was maintained by altering the length of the hydrocarbon chains, and not by side-chain saturation such as double-bond hydrogenation nor by such a modificatio...Continue Reading

References

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Citations

Mar 15, 2014·Extremophiles : Life Under Extreme Conditions·Ryota HideseShinsuke Fujiwara
Nov 15, 2011·Proceedings of the Japan Academy. Series B, Physical and Biological Sciences·Tadayuki Imanaka
Nov 3, 2010·Research in Microbiology·Rie MatsumiJohn van der Oost
Jun 24, 2015·Extremophiles : Life Under Extreme Conditions·Mohamed JebbarPhilippe Oger
Jun 9, 2016·Archaea : an International Microbiological Journal·Emma J GagenMichael Thomm
Jul 7, 2016·Nucleic Acids Research·Kelly M SchermerhornAndrew F Gardner
Jul 11, 2009·Applied Microbiology and Biotechnology·Natasa Poklar UlrihPeter Raspor
Mar 23, 2020·Extremophiles : Life Under Extreme Conditions·Julian QuehenbergerOliver Spadiut
Nov 6, 2015·Frontiers in Microbiology·Anaïs CarioPhilippe M Oger
May 3, 2019·Science Advances·Young Hun KimJerry Yang
Jun 4, 2020·International Journal of Molecular Sciences·Kerstin RastädterJulian Quehenberger
Sep 8, 2017·Frontiers in Microbiology·Miriam SollichSolveig I Bühring
May 17, 2017·Extremophiles : Life Under Extreme Conditions·Melvin F SiliakusServé W M Kengen

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