The correlative evidence suggesting that trehalose stabilizes membrane structure in the yeast Saccharomyces cerevisiae.
The contribution of trehalose and hsp104 to membrane fluidity and the mobility of non-freezing cell water were examined on the basis of whole cell NMR analysis of the yeast Saccharomyces cerevisiae. Membrane fluidity was dependent on the accumulation of trehalose not hsp104 and non-freezing cell water was dependent on the accumulation of hsp104 not trehalose. Thus, the correlative evidence suggesting that trehalose protects yeast cells from temperature extremes by stabilizing the membrane structure was observed in vivo.
National Institute of Bioscience and Human-Technology, Ibaraki, Japan.
H
H
Iwahashi
K
K
Obuchi
S
S
Fujii
Y
Y
Komatsu
D002462:Cell Membrane / Q000502:physiology* / Q000648:ultrastructure; D006360:Heat-Shock Proteins / Q000378:metabolism; D006358:Hot Temperature; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D008560:Membrane Fluidity; D012441:Saccharomyces cerevisiae / Q000502:physiology* / Q000648:ultrastructure; D029701:Saccharomyces cerevisiae Proteins; D013696:Temperature; D013997:Time Factors; D014199:Trehalose / Q000378:metabolism*
D006360:Heat-Shock Proteins; D029701:Saccharomyces cerevisiae Proteins; C070972:HsP104 protein, S cerevisiae; D014199:Trehalose