植物のリズム運動に関する研究 : 第2報, 環境情報によるリズム生成挙動の計測

概要

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We investigated mutual relationships between rhythmic motions of plant organs (roots and stems of peas (Pisum sativum)) and environmental informations by stimulating an organ with the LED light and the sound, using the newly developed measuring system. This system can record 3-dimensional motions of two plant organs automatically by image processing, and in this system the overhead crane was equiped with the light stimulating instrument or the sound stimulating instrument, which can locally stimulate the necessary part only. As a result, when the tip of a stem was stimulated with the blue light (470[nm]), it grew toward the light source as the amplitude of the rhythms increased. When stimulating a stem with the white noise for 1[h], the amplitude of rhythms in it grew bigger after stopping the stimulation. In addition, we found some correlations between rhythmic motions of the stimulated organ (stem) and the other organ (main root) when the tip of a stem was irradiated with the blue LED light.
一般社団法人日本機械学会の論文
1998-05-25