The geometry of unfolding tree leaves
The geometry of unfolding tree leaves
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DOI：
10.1098/rspb.1998.0276
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发表时间：
1998-01-22
影响因子：
4.7
通讯作者：
Vincent, JFV
中科院分区：
文献类型：
--
作者：
Kobayashi, H;Kresling, B;Vincent, JFV
采用数值模拟方法，将鹅耳枥（Carpinus betulus）和山毛榉（Fagus sylvaticus）的叶片模拟为一级近似平面，具有直的平行褶皱。在这两个物种中，当叶子伸展时，侧脉与中心脉成30-50度角。较高的角度允许叶子在芽内折叠得更紧密，但需要更长的时间才能展开。这可以允许植物在生态和生理条件下优化叶展开的时机。
Leaves of hornbeam (Carpinus betulus) and beech (Fagus sylvaticus) were modelled to a first approximation as plane surfaces, with straight parallel folds, using numerical methods. In both species the lateral veins, when the leaves are outstretched, are angled at 30-50 degrees from the centre vein. A higher angle allows the leaf to be folded more compactly within the bud, but it takes longer to expand. This may allow the plant to optimize the timing of leaf deployment with ecological and physiological conditions.