Telome theory

Japanese: telome theory(英語表記)telometheory
Telome theory

…The leaves of most vascular plants, on the other hand, are called megaphyll. Megaphyll originally formed from a single shoot, and the evolution from shoot to megaphyll is explained by the telome theory. Primitive land plants had shoots with three-dimensional bifurcated branches like those of the pinecone, with the axis of division rotating 90 degrees each time. This single telome branch evolved into a leaf through repeated processes of flattening, uniaxialization, fusion, and simplification. …

*Some explanations of terms that refer to "telome theory" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…大部分の維管束植物の葉は,これに対して大葉megaphyllといわれる。大葉はもとは一つの苗条からつくられたものであるが,苗条から大葉への進化はテロム説telome theoryで説明される。原始陸上植物は1回ごとに分裂の軸が90度回転して,マツバランのような立体的な二叉分岐をした苗条をもっていたが,この1単位のテロム枝が,扁平化,単軸化,融合,単純化などの進化をくり返して葉となった。…

※「telome theory」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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