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DESTABILISATION OF THE PLASMA MEMBRANE OF ISOLATED PLANT PROTOPLASTS DURING A FREEZE-THAW CYCLE: THE INFLUENCE OF COLD ACCLIMATION.

Author(s) : STEPONKUS P. L., DOWGERT M. F., GORDON-KAMM W. J.

Type of article: Article

Summary

ISOLATED PROTOPLASTS ARE AN EXCELLENT ARENA IN WHICH DESTABILIZATION OF THE PLASMA MEMBRANE CAN BE DIRECTLY OBSERVED DURING A FREEZE-THAW CYCLE BY CRYOMICROSCOPY: INTRACELLULAR ICE FORMATION, LOSS OF OSMOTIC RESPONSIVENESS, OR EXPANSION-INDUCED LYSIS. IN ALL CASES COLD ACCLIMATION DIRECTLY INCREASES THE STABILITY OF THE PLASMA MEMBRANE TO THE MULTIPLE STRESSES. SUCH OBSERVATIONS PROVIDE FOR FUNCTIONAL DIFFERENCES IN THE PLASMA MEMBRANE THAT MAY NOW BE USED TO CONSIDER THE SIGNIFICANCE OF ANY COMPOSITIONAL CHANGES IN THE MEMBRANE THAT MIGHT BE DETERMINED.

Details

  • Original title: DESTABILISATION OF THE PLASMA MEMBRANE OF ISOLATED PLANT PROTOPLASTS DURING A FREEZE-THAW CYCLE: THE INFLUENCE OF COLD ACCLIMATION.
  • Record ID : 1984-1232
  • Languages: English
  • Source: Cryobiology - vol. 20 - n. 4
  • Publication date: 1983

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