[Increased permeability of the intracellular membranes in the dehydration and rehydration of Saccharomyces cerevisiae yeasts].
A considerable quantity of potassium and magnesium ions was found to be released from Saccharomyces cerevisiae cells being in the state of anabiosis upon their rehydration. The nearly maximal (for each of the experiments) quantity of ions was released as early as when cells dehydrated to a residual humidity of ca. 20% were rehydrated. A further decrease of the residual humidity down to 8-10% did not increase the leakage of the ions when the cells were rehydrated. It was concluded that the permeability of the cytoplasmic and vacuolar membranes for the ions increased when the cells were dehydrated and that this phenomenon should be attributed to the removal of free water from the cells.
D002463:Cell Membrane Permeability; D003890:Desiccation; D007425:Intracellular Membranes / Q000502:physiology*; D008274:Magnesium / Q000378:metabolism; D011188:Potassium / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000502:physiology*; D014617:Vacuoles / Q000378:metabolism; D014867:Water / Q000378:metabolism*
D014867:Water; D008274:Magnesium; D011188:Potassium
O povyshenii pronitsaemosti vnutrikletochnykh membran pri obezvozhivanii-regidratatsii drozhzheĭ Saccharomyces cerevisiae.