…Flowering is also a growth movement, and occurs due to the elongation of the cells of the perianth. The ecliptic movement of leaves occurs due to the difference in growth between the adaxial and abaxial sides of the petiole, but in the case of leaves with a pulvinus, it is based on the reversible change in the volume of the motor cells of the pulvinus in response to light. Well-known examples of movements that occur in response to a single stimulus such as electricity or vibration include the response movement of the leaves of Mimosa pudica and the closing movement of the trapping leaves of Venus flytraps and Welsh algae. … *Some of the terminology explanations that mention "motile cells" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…開花もまた生長運動であって花被の細胞の伸長生長によっておこる。葉の就眠運動は葉柄の向軸側と背軸側での生長差によっておこるが,葉枕(ようちん)をもつ葉の場合には葉枕の運動細胞motor cellの容積が光によって可逆的に変化することにもとづいている。電気や振動などの単一刺激でおこる運動として,オジギソウの葉の応答運動,ハエジゴクやムジナモの捕虫葉の閉鎖運動などがよく知られている。… ※「運動細胞」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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