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PLASMA MEMBRANE ULTRASTRUCTURAL CHANGES CAUSED BY MECHANICAL STRESS IN THE FORMATION OF EXTRACELLULAR ICE AS A PRIMARY CAUSE OF SLOW FREEZING INJURY IN FRUIT BODIES OF BASIDIOMYCETES, LYOPHYLLUM ULMARIUM(FR) KUHNER.

Author(s) : FUJIKAWA S., MIURA K.

Type of article: Article

Summary

BY SLOW FREEZING, HYPHAE WERE SEVERELY DEFORMED BY THE FORMATION OF EXTRACELLULAR ICE. THE PLASMA MEMBRANE SHOWED DISTINCT INTRAMEMBRANE PARTICLE AGGREGATION IN THE REGIONS WHERE THE INNER SURFACES OF THE PLASMA MEMBRANE WERE BROUGHT INTO DIRECT CONTACT BY CELLULAR DEFORMATION RESULTING FROM THE FORMATION OF EXTRACELLULAR ICE. OSMOTIC MANIPULATIONOF HYPHAE WITHOUT FREEZING CAUSED NEITHER DISTINCT CELLULAR DEFORMATION NOR INTRAMEMBRANE PARTICLE AGGREGATION IN PLASMA MEMBRANE. THE PERCENTAGE OF HYPHAE SHOWING INTRAMEMBRANE PARTICLE AGGREGATION IN SLOWLY FROZEN SAMPLES SHOWED A CLOSE RELATION WITH THE PERCENTAGE DAMAGE AS MEASURED BY THE ION-LEAKAGE METHOD AFTER THAWING. THE PRIMARY CAUSE OF SLOW FREEZING INJURY WAS DUE TO MECHANICAL STRESS BY THE FORMATION OF EXTRACELLULAR ICE.

Details

  • Original title: PLASMA MEMBRANE ULTRASTRUCTURAL CHANGES CAUSED BY MECHANICAL STRESS IN THE FORMATION OF EXTRACELLULAR ICE AS A PRIMARY CAUSE OF SLOW FREEZING INJURY IN FRUIT BODIES OF BASIDIOMYCETES, LYOPHYLLUM ULMARIUM(FR) KUHNER.
  • Record ID : 1987-0374
  • Languages: English
  • Source: Cryobiology - vol. 23 - n. 4
  • Publication date: 1986

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