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植物的“眼睛”
Authors
林荣呈
淮俊玲
Publication date
1 January 2019
Publisher
Abstract
相信读者对向日葵不会陌生,它最重要的特征就是花跟着太阳转,这也是其名字的由来。大家有没有思考过或者想知道其中的奥秘呢?科学家发现,这是由植物的向光性决定的。在向日葵的花茎中,含有一种植物激素——生长素,它就像跟太阳捉迷藏似的,喜欢在背光的一侧积累,刺激背光面的细胞迅速分裂生长,于是背光面就比向光面长得快,花盘自然而然地就朝着有太阳的方向弯曲。太阳光是由不同波长的可见光和不可见
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of Botany,Chinese Academy Of Sciences
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Last time updated on 09/06/2022