The Frost Hardiness of Several Solanum Species in Relation to the Freezing of Water, Melting Point Depression, and Tissue Water Content
- 1 December 1976
- journal article
- research article
- Published by University of Chicago Press in Botanical Gazette
- Vol. 137 (4), 313-317
- https://doi.org/10.1086/336877
Abstract
Pulsed NMR spectroscopy was used to study the freezing process in excised leaf tissues of several Solanium spp. [Solanum tuberosum ssp. tuberosum, S. multidissectum, S. acaule, S. chomatophilum and S. commersonii]. The amount of liquid water in the partially frozen leaf tissues at the killing temperature was 41-47% in susceptible genotypes of S. tuberosum, 43% in ''Alaska Frostless,'' and 22-36% in other more hardy species. The excised leaf tissues of all species froze as ideal solutions. There were no correlations between frost killing temperature and tissue water content or the melting point depression of cell sap. The major difference between the tender and hardy tissues was the ability of hardy tissue to tolerate more frozen water at frost killing temperatures.This publication has 3 references indexed in Scilit:
- Freezing Stresses and SurvivalAnnual Review of Plant Physiology, 1967
- Studies on the Chemistry of the Living Bark of the Black Locust in Relation to Its Frost Hardiness. III. The Validity of Plasmolysis and Desiccation Tests for Determining the Frost Hardiness of Bark TissuePlant Physiology, 1953
- THE RELATION OF CABBAGE HARDINESS TO BOUND WATER, UNFROZEN WATER, AND CELL CONTRACTION WHEN FROZENPlant Physiology, 1939