Colligative Effects of Solutions of Low-Molecular Sugars and Their Role in Plants under Hypothermia

The colligative effects of endogenous highly concentrated sugar solutions on frost-resistant plants subjected to negative temperatures are reviewed. These effects prevent cell dehydration and formation of intercellular ice; they decrease the protoplast freezing point and neutralize toxic products. S...

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Bibliographic Details
Published in:Biology bulletin of the Russian Academy of Sciences 2021-12, Vol.48 (Suppl 3), p.S29-S37
Main Authors: Deryabin, A. N., Trunova, T. I.
Format: Article
Language:English
Subjects:
Biochemistry
Biomedical and Life Sciences
Cell Biology
Deactivation
Dehydration
Ecology
Energy metabolism
Freezing
Hypothermia
Life Sciences
Lipids
Plant Physiology
Reactive oxygen species
Zoology
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Summary:The colligative effects of endogenous highly concentrated sugar solutions on frost-resistant plants subjected to negative temperatures are reviewed. These effects prevent cell dehydration and formation of intercellular ice; they decrease the protoplast freezing point and neutralize toxic products. Several protective activities of plant sugars occurring under hypothermia are discussed. These are structural stabilization of membranes, lipids and proteins, deactivation of reactive oxygen species, participation in signaling, and involvement in metabolism as both energy sources and precursors for synthesis of different protective compounds.
ISSN:1062-3590
1608-3059
DOI:10.1134/S1062359021060042