Effect of light exposure on the glycoalkaloid content of Solanum phureja tubers

被引:21
作者
Griffiths, DW [1 ]
Dale, MFB [1 ]
机构
[1] Scottish Crop Res Inst, Dundee DD2 5DA, Scotland
关键词
glycoalkaloids; alpha-solanine; alpha-chaconine; alpha-solamarine; light; tubers; leaves; sprouts;
D O I
10.1021/jf010656r
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
The individual glycoalkaloid contents of tubers from eleven Solanum phureja genotypes have been determined prior to and following exposure to light. In all genotypes, light exposure resulted in a statistically significant increase in total glycoalkaloid content. In nine of the genotypes studied, this was not only due to an increase in the. levels of the solanidine-based glycoalkaloids, oc-solanine and alpha -chaconine, but also due to the light-induced synthesis of a tomatidenol-based glycoalkaloid, alpha -solamarine. Those genotypes that accumulated alpha -solamarine in their tubers also contained tomatidenol-based glycoalkaloids in their leaves, but only solanidine-based glycoalkaloids were detected in the sprouts.
引用
收藏
页码:5223 / 5227
页数:5
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