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EFFECTS OF THE POLYMERIC CRYOPROTECTANT POLYVINYLPYRROLIDONE (PVP) ON THE RED ALGA DILSEA CARNOSA (SCHMIDEL) KUNZE.

Author(s) : ANDREN M., PEDERSEN M., ROOMANS G. M.

Type of article: Article

Summary

MORPHOLOGICAL AND PHYSIOLOGICAL EFFECTS OF DIFFERENT CONCENTRATIONS OF THE POLYMERIC CRYOPROTECTANT PVP ON THE RED ALGA WERE INVESTIGATED. ICE CRYSTAL DAMAGE AND SHRINKAGE WERE ASSESSED IN FREEZE-SUBSTITUTED SPECIMENS. X-RAY MICROANALYSIS SHOWED THAT PVP DOES NOT CAUSE LEAKAGE OF IONS FROM THE CELLS. PVP CONCENTRATIONS UP TO 25% DO NOT AFFECT THE PHOTOSYNTHETIC ACTIVITY. IT IS CONCLUDED THAT A SHORT TREATMENT WITH 25% PVP IN A SOLVENT OF LOW OSMOLARITY MIGHT BE THE MOST ACCEPTABLE WAY OF CRYOPROTECTION OF THIS TISSUE.

Details

  • Original title: EFFECTS OF THE POLYMERIC CRYOPROTECTANT POLYVINYLPYRROLIDONE (PVP) ON THE RED ALGA DILSEA CARNOSA (SCHMIDEL) KUNZE.
  • Record ID : 1983-2374
  • Languages: English
  • Source: Cryo-Letters - vol. 4 - n. 1
  • Publication date: 1983
  • Document available for consultation in the library of the IIR headquarters only.

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