Center for Integrative Genomics, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland; email:
Annu Rev Plant Biol. 2016 Apr 29;67:513-37. doi: 10.1146/annurev-arplant-043015-112252. Epub 2016 Feb 22.
Light is crucial for plant life, and perception of the light environment dictates plant growth, morphology, and developmental changes. Such adjustments in growth and development in response to light conditions are often established through changes in hormone levels and signaling. This review discusses examples of light-regulated processes throughout a plant's life cycle for which it is known how light signals lead to hormonal regulation. Light acts as an important developmental switch in germination, photomorphogenesis, and transition to flowering, and light cues are essential to ensure light capture through architectural changes during phototropism and the shade avoidance response. In describing well-established links between light perception and hormonal changes, we aim to give insight into the mechanisms that enable plants to thrive in variable light environments.
光是植物生命的关键，对光环境的感知决定了植物的生长、形态和发育变化。植物对光照条件的这种生长和发育的调整通常是通过激素水平和信号的变化来建立的。本综述讨论了植物生命周期中受光照调节的过程的例子，这些过程已知光照信号如何导致激素调节。光在种子萌发、光形态建成和向开花过渡中起着重要的发育开关作用，光信号对于通过向光性和避荫反应期间的结构变化来确保光捕获是必不可少的。在描述光感知和激素变化之间的既定联系时，我们旨在深入了解使植物能够在多变的光照环境中茁壮成长的机制。
