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花的分形形式源于花基因网络的干扰
Eugenio Azpeitia1, Gabrielle Tichtinsky2, Marie Le Masson2
1Laboratoire de Reproduction et Développement des Plantes, Univ. Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69364 Lyon, France.
Science (New York, N.Y.)
|July 10, 2021
概括
由于植物的发展"记忆"可以形成碎形图案,如花. 这项研究解释了花发育和生长动态的干扰如何产生这些复杂的,自我相似的结构.
科学领域:
- 植物发育生物学
- 生物系统的数学建模
- 自然中的碎形几何学
背景情况:
- 植物系统通常以精确的模式 (螺旋,相反,旋转) 组织器官.
- 花表现出复杂的,多尺度的分形和自相似的螺旋结构.
- 在此之前,人们还不知道花的发育机制是如何形成的.
研究的目的:
- 阐明花花样结构中的碎形自我相似性的发展基础.
- 调查花状态记忆在花组织中的作用.
- 探索发育程序中的扰动如何影响植物形态.
主要方法:
- 一种类似花菜的突变植物的实验分析.
- 用计算机建模模拟系统行为.
- 影响美体发育和生长的突变的遗传分析.
主要成果:
- 花中的梅系统自我相似性源于不能形成花朵,保留短暂的花状态的"记忆".
- 影响体生长的额外突变可以产生类似于罗曼尼斯科西兰花的形,碎形结构.
- 这项研究将花发育和生长动态的特定扰乱与碎形态联系起来.
结论:
- 在已建立的发育路径中出现碎形植物形式.
- 短暂的花状态的 Meristem 记忆是产生花的自我相似结构的一个关键因素.
- 了解这些机制可以了解复杂的生物形式的发展.
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