Temperature exerts a first-order control on microbial populations, which constantly adjust the fluidity and permeability of their cell membrane lipids to minimize loss of energy by ion diffusion across the membrane. Analytical advances in liquid chromatography coupled to mass spectrometry have allowed the detection of a stunning diversity of bacterial and archaeal lipids in extreme environments...

The importance of the role played by bacteria in the pathogenesis of pulpal and apical disease has been established. One of the characteristics of apical periodontitis is apical bone resorption, which is due to apical immune response to bacterial infection. Recently, novel bacterial complex lipid called phosphorylated dihydroceramides has been discovered to be of inflammatory activators. The ba...

Nearly all molecular dynamics simulations of bacterial membranes simplify the lipid bilayer by composing it of only one or two lipids. Previous attempts of developing a model E. coli membrane have used only 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine (POPE) and (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol) POPG lipids. However, an important constituent of bacterial membranes are...

Nocardia brasiliensis is a Gram-positive facultative intracellular bacterium frequently isolated from human actinomycetoma. However, the pathogenesis of this infection remains unknown. Here, we used a model of bacterial delipidation with benzine to investigate the role of N. brasiliensis cell wall-associated lipids in experimental actinomycetoma. Delipidation of N. brasiliensis with benzine res...

Relatively little is known about the intermediary metabolism of bacterial phospholipids. Indeed, as Assilineau and Lederer have pointed out in their authoritative review (l), comparatively few bacterial phospholipids have been well characterized chemically by modern techniques. Interest in the chemistry and metabolism of bacterial lipids is, however, rapidly growing. In the past few years, publ...

INTRODUCTION........................................................ TYPEs AND DISTRIBUTION OF PHOSPHATIDES IN BACTERIA ............... Phosphatidylcholine and Phosphatidylethanolamine........... Phosphatidylinositol . Lipids Containing Ether Linkages... .................................. Phosphatidylglycerol, Diphosphatidylglycerol (Cardiolipin), and Lipoamino Acids ..............................

A putative relationship between growth impairment of Bacillus stearothermophilus by tamoxifen (TAM) and TAM-induced perturbation of the physical properties of bacterial membrane lipids has been observed. The supplementation of the growth medium with Ca2+ (a membrane stabilizer) partially relieves growth inhibition by TAM, allowing growth at TAM concentrations that fully impair growth in the bas...