Glass transitions in soybean seed : relevance to anhydrous biology |
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| Authors: | Bruni F Leopold A C |
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| Affiliation: | Section of Plant Biology, Cornell University, Ithaca, New York 14853. |
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| Abstract: | We have investigated the mechanism by which anhydrobiotic organisms can survive severe dehydration. The method used was measurement of the rotational diffusion coefficient of a hydrophilic spin probe, inserted in the cytoplasm of soybean (Glycine max L.) axes, as a function of temperature and sample water content. Results indicate the existence of a hydration-dependent glass-like transition at physiological temperatures. No glass transitions have been observed in desiccation-intolerant samples, suggesting that the ability to withstand dehydration is associated with glass formation. |
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