色蕪品種の色素発現機構について-2-

概要

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Since 1953, the authors have been studying on -the mode of coloring with a number of colored varieties of turnips grown in Japan. The present paper deals with the survey of anthocyan of colored turnips, using the paper chromatographic method. 1. Up to present, the results have shown that the colored varieties of turnip in Japan are classified into two groups, viz., cyanin group (redish purple_??_grayish purple) and pelargonin group (red group). And it was found that the essential anthocyan component of the former was nothing other than, cyanin (cyanidin 3:5 diglucoside), and the component of the latter, pelargonin (pelargonidin 3:5 diglucoside). On the chromatogram obtained from the crude anthocyan extract, we observed two colored features, of which one is free anthocyan, the other is a derivative of anthocyan, probably associated with an unknown organic acid. (It is obvious that it is malonic acid in the case of cyanin.) 2. We could not detect the difference of anthocyan component within the varieties of each group, judging from the features on the chromatogram. The same fact could be said as for the parts of organs (hypocotyl, stem and leaf, and root), and also, in each stage of plant growth.
園芸学会の論文