虫えいの組織学的観察およびアントシアニン組成の調査

概要

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Insect galls and the anthocyanins distributed in the gall cells were observed with microscope. Anthocyanins were generally distributed in upper epidermal cells and/or 2-3 layers of parenchyma cells under epidermal cells. The distribution profiles are different in each gall cell and also different from those of sprout, young leaves and fall colored leaves with no parasite of the same plants. In addition, anthocyanins produced in insect galls were isolated and identified chromatographically. Seven anthocyanins with three types of aglycones, cyanidin, peonidin and pelargonidin were detected. Cyanidin 3-O-glucoside (chrysanthemin) was the most popular anthocyanin followed by cyanidin 3-O-rhamnosylglucoside (keracyanin) and cyanidin 3-O-xylosylglucoside (or cyanidin 3-O-galactoside, idaein) in order. Anthocyanin constituents of insect galls appeared at early stage of leaves were the same as those of young leaves with no parasite in Fagus crenata and Prunus jamasakura (Table 3). In contrast, anthocyanin constituents of the insect galls, which grow with leaf growth and are colored red at the mature stage of laeves, were different from those of young leaves with no parasite in Zelkova serrata and Prunus × yedoensis; their anthocyanin constituents in galls were the same as those of fall colored leaves.
国立科学博物館の論文
2005-12-26