…The positive phototaxis of the photosynthetic protozoan Euglena, which gathers in the presence of light, is also called clinotaxis. The second type, which does the same thing using a pair of receptors, is called tropotaxis (or stimulus symmetry). The positive phototaxis of diurnal insects is a good example of this, in which the insects gather near a light source as a result of the movement of their wings so that the light intensity hitting both compound eyes is the same. … *Some of the terminology that mentions "tropotaxis" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…光合成を行う原生動物ミドリムシが,光のあるところに集まる正の光走性も,クリノタクシスである。 第2はこれと同じことを左右対になった受容器によって行うもので,トロポタクシスtropotaxis(転向走性または刺激相称性)とよばれる。昼行性の昆虫の正の光走性はこれのよい例で,両側の複眼にあてる光の強さが同じになるように左右の羽が動くという反応の結果,虫は光源に集まってくるのである。… ※「tropotaxis」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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