A modular concept of plant foraging behaviour: the interplay between local responses and systemic control
A modular concept of plant foraging behaviour: the interplay between local responses and systemic control
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DOI：
10.1111/j.1365-3040.2009.01936.x
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发表时间：
2009-06-01
影响因子：
7.3
通讯作者：
Hutchings, Michael J.
中科院分区：
文献类型：
--
作者：
De Kroon, Hans;Visser, Eric J. W.;Hutchings, Michael J.
在本文中，我们研究的概念，植物觅食的资源在异质环境中必须涉及：（1）可塑性的水平上的个别模块在本地化的环境信号的反应;和（2）修改这些响应的可能性，无论是从连接模块，可能会暴露在不同的条件下，或由信号反映的整体资源状况的植物。提出了一个概念模型来说明植物觅食行为是如何通过这些过程的一致行动，从信号接收，通过信号转导的形态或生理反应。支持这一概念的证据进行审查，使用营养异质条件下的选择性根放置和茎和叶柄的伸长响应遮荫为例。我们讨论了如何通过这个模型可以促进觅食行为的生态意义的理解。我们还确定了一个需要扩大分子生理学和生态学的实验剧目，以增加我们的洞察觅食反应的调节和功能，以及它们与植物进化的环境异质性模式的关系。
In this paper we examined the notion that plant foraging for resources in heterogeneous environments must involve: (1) plasticity at the level of individual modules in reaction to localized environmental signals; and (2) the potential for modification of these responses either by the signals received from connected modules that may be exposed to different conditions, or by the signals reflecting the overall resource status of the plant. A conceptual model is presented to illustrate how plant foraging behaviour is achieved through these processes acting in concert, from the signal reception through signal transduction to morphological or physiological response. Evidence to support the concept is reviewed, using selective root placement under nutritionally heterogeneous conditions and elongation responses of stems and petioles to shade as examples. We discussed how the adoption of this model can promote understanding of the ecological significance of foraging behaviour. We also identified a need to widen the experimental repertoires of both molecular physiology and ecology in order to increase our insight into both the regulation and functioning of foraging responses, and their relationship with the patterns of environmental heterogeneity under which plants have evolved.