title: Spin-labeling studies on the membrane of a facultative thermophilic bacillus.
abstract: Spin-labeling studies were conducted to elucidate the rigidity and viscosity of the membrane of a facultative thermophilic bacillus. By employing nitroxide stearate probes, it was observed that this fatty acid was incorporated into the membrane fraction. Electron spin resonance spectroscopy indicated that cells grown at 55 C contained a membrane which was more rigid and viscous than the membrane from cells grown at 37 C.
mesh_terms: D001407:Bacillus / Q000032:analysis* / Q000378:metabolism; D002462:Cell Membrane / Q000032:analysis* / Q000378:metabolism; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004577:Electron Probe Microanalysis; D004578:Electron Spin Resonance Spectroscopy; D005227:Fatty Acids / Q000032:analysis; D005230:Fatty Acids, Nonesterified / Q000032:analysis; D006358:Hot Temperature; D008055:Lipids / Q000032:analysis; D008722:Methods; D009589:Nitrogen Oxides; D010743:Phospholipids / Q000032:analysis; D013053:Spectrophotometry; D013229:Stearic Acids / Q000378:metabolism; D014783:Viscosity
chemical_list: D005227:Fatty Acids; D005230:Fatty Acids, Nonesterified; D008055:Lipids; D009589:Nitrogen Oxides; D010743:Phospholipids; D013229:Stearic Acids