Temperature-Dependent Alkyl Glycerol Ether Lipid Composition of Mesophilic and Thermophilic Sulfate-Reducing Bacteria.

ABSTRACT: The occurrence of non-isoprenoid alkyl glycerol ether lipids in Bacteria and natural environments is increasingly being reported and the specificity and diagenetic stability of these lipids make them powerful biomarkers for biogeochemical and environmental studies. Yet the environmental controls on the biosynthesis of these peculiar membrane lipids remain poorly documented. Here, the lipid content of two mesophilic (Desulfatibacillum aliphaticivorans and Desulfatibacillum alkenivorans) and one thermophilic (Thermodesulfobacterium commune) sulfate-reducing bacteria-whose membranes are mostly composed of ether lipids-was investigated as a function of growth temperature (20-40°C and 54-84°C, respectively). For all strains, the cellular lipid content was lower at sub- or s

SUBMITTER: Vincon-Laugier A 

PROVIDER: S-EPMC5552659 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature