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Freeze induced membrane permeability changes in winter rye secale cereale


, : Freeze induced membrane permeability changes in winter rye secale cereale. Cryo Letters 3(1): 27-34

The freezing and thawing in live and fully cold-hardened crowns of winter rye (S. cereale L.) can be described by 2 rate constants. The rates of freezing and thawing of the major fraction of tissue water increased sharply when the crowns were cooled below their killing temperature, -30.degree. C. The measurements, all made below -4.degree. C, suggest that the changes in the plasma membrane water permeability are associated with the frost damage and occur without fully thawing the tissue.

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