Chilling-Susceptibility of the Blue-Green Alga Anacystis nidulans1: III. LIPID PHASE OF CYTOPLASMIC MEMBRANE
AUTOR(ES)
Ono, Taka-Aki
RESUMO
The lipid phase of cytoplasmic membrane was studied by freeze-fracture electron microscopy in the chilling-susceptible blue-green alga, Anacystis nidulans. At growth temperatures, intramembrane particles were distributed at random in the fracture faces of cytoplasmic membrane, whereas, at chilling temperatures, the fracture faces were composed of particle-free and particle-containing regions. These findings indicate that lipids of the cytoplasmic membrane were in the liquid-crystalline state at the growth temperatures and in the phase-separation state at the chilling temperatures. Temperatures for the onset of phase separation were 5 and 16°C in cells grown at 28 and 38°C, respectively.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=426159Documentos Relacionados
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