Light signalling shapes plant-plant interactions in dense canopies.

Light signalling shapes plant-plant interactions in dense canopies.
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DOI:
10.1111/pce.13912
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发表时间:
2021-04
期刊:
Plant, cell & environment
影响因子:
--
通讯作者:
Pierik R
Pierik R
中科院分区:
其他
文献类型:
--
作者:
Huber M;Nieuwendijk NM;Pantazopoulou CK;Pierik R

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高密度生长的植物通过多种途径相互作用。在这里,我们提供了一个概述的机制和功能的后果,植物建筑反应引发的光线索,发生在茂密的植被。我们将回顾目前关于避荫的知识状况,以及它可能的应用。在个体水平上,植物主要通过光敏色素感知红光和远红光的光质和光量的邻居相关变化,以及隐花色素和向光蛋白感知蓝光的邻居相关变化。在这些光感受器的下游,与光敏色素相互作用因子、几种激素和其他调节剂发生复杂的信号传导和整合。这种信号导致避荫反应,包括低适应性,茎和叶柄伸长,顶端优势和生活史的调整。植物个体的结构变化对植物群落产生影响,影响冠层结构、物种组成和种群适合度。在这种情况下,我们强调避荫的生态,进化和农业的重要性。通过光信号传递植物信号的原因和后果:从基因到冠层。
Plants growing at high densities interact via a multitude of pathways. Here, we provide an overview of mechanisms and functional consequences of plant architectural responses initiated by light cues that occur in dense vegetation. We will review the current state of knowledge about shade avoidance, as well as its possible applications. On an individual level, plants perceive neighbour‐associated changes in light quality and quantity mainly with phytochromes for red and far‐red light and cryptochromes and phototropins for blue light. Downstream of these photoreceptors, elaborate signalling and integration takes place with the PHYTOCHROME INTERACTING FACTORS, several hormones and other regulators. This signalling leads to the shade avoidance responses, consisting of hyponasty, stem and petiole elongation, apical dominance and life cycle adjustments. Architectural changes of the individual plant have consequences for the plant community, affecting canopy structure, species composition and population fitness. In this context, we highlight the ecological, evolutionary and agricultural importance of shade avoidance. Causes and consequences of plant–plant signalling through light cues: from genes to canopies.
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影响因子: 6.4
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