Cerebrosides in grapevine leaves: distinct composition of sphingoid bases among the grapevine species having different tolerances to freezing temperature |
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| Authors: | Kawaguchi M Imai H Naoe M Yasui Y Ohnishi M |
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| Affiliation: | Tokachi-Ikeda Research Institute for Viticulture and Enology, Ikeda, Hokkaido, Japan. |
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| Abstract: | Cerebrosides from leaves of three grapevine species were analyzed in detail. The relative proportions of 8-E/Z isomers of 4-hydroxy-8-sphingenines [i.e. 8-E/Z t18:1(8E) and (8Z)] differed amongst the species in respect to freezing tolerance. This suggests that the occurrence of high levels of t18:1(8Z) in cerebrosides is correlated with freezing tolerance in these species. |
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