Mathieu A, Cournède P H, Letort V, Barthélémy D, de Reffye P
Ecole Centrale Paris, Laboratory of Applied Mathematics, Grande Voie des Vignes, 92295 Châtenay Malabry, France.
Ann Bot. 2009 Jun;103(8):1173-86. doi: 10.1093/aob/mcp054. Epub 2009 Mar 18.
The strong influence of environment and functioning on plant organogenesis has been well documented by botanists but is poorly reproduced in most functional-structural models. In this context, a model of interactions is proposed between plant organogenesis and plant functional mechanisms.
The GreenLab model derived from AMAP models was used. Organogenetic rules give the plant architecture, which defines an interconnected network of organs. The plant is considered as a collection of interacting 'sinks' that compete for the allocation of photosynthates coming from 'sources'. A single variable characteristic of the balance between sources and sinks during plant growth controls different events in plant development, such as the number of branches or the fruit load.
Variations in the environmental parameters related to light and density induce changes in plant morphogenesis. Architecture appears as the dynamic result of this balance, and plant plasticity expresses itself very simply at different levels: appearance of branches and reiteration, number of organs, fructification and adaptation of ecophysiological characteristics.
The modelling framework serves as a tool for theoretical botany to explore the emergence of specific morphological and architectural patterns and can help to understand plant phenotypic plasticity and its strategy in response to environmental changes.
植物学家已充分证明环境和功能对植物器官发生有强烈影响，但在大多数功能-结构模型中却难以再现。在此背景下，提出了一种植物器官发生与植物功能机制之间的相互作用模型。
使用源自AMAP模型的GreenLab模型。器官发生规则决定了植物结构，该结构定义了一个相互连接的器官网络。植物被视为一组相互作用的“库”，它们竞争来自“源”的光合产物的分配。植物生长过程中源与库之间平衡的单一可变特征控制着植物发育中的不同事件，如分枝数量或果实负载量。
与光照和密度相关的环境参数变化会引起植物形态发生的改变。植物结构表现为这种平衡的动态结果，植物可塑性在不同层面上的表现非常简单：分枝的出现与重复、器官数量、结果以及生态生理特征的适应。
该建模框架可作为理论植物学的工具，用于探索特定形态和结构模式的出现，并有助于理解植物表型可塑性及其应对环境变化的策略。
