Institute of Molecular Plant Sciences, Edinburgh University, Edinburgh, UK.
Cold Spring Harb Perspect Biol. 2009 Dec;1(6):a001586. doi: 10.1101/cshperspect.a001586. Epub 2009 Nov 4.
Light is vital for plant growth and development: It provides energy for photosynthesis, but also reliable information on seasonal timing and local habitat conditions. Light sensing is therefore of paramount importance for plants. Thus, plants have evolved sophisticated light receptors and signaling networks that detect and respond to changes in light intensity, duration, and spectral quality. Environmental light signals can drive developmental transitions such as germination and flowering, but they also continuously shape development to allow adaptation to the local habitat and microclimate. The ability to respond to a changing and sometimes unfavorable environment underlies the huge success of plants. Much of this growth and developmental plasticity is achieved by light modulation of auxin signaling systems. In this article, we examine the connections between light and auxin that elicit local responses, long distance signaling, and coordinated growth between the shoot and root.
它为光合作用提供能量，但也为季节性时间和当地生境条件提供可靠信息。因此，光感测对植物至关重要。因此，植物已经进化出复杂的光受体和信号网络，可检测和响应光强、持续时间和光谱质量的变化。环境光信号可以驱动发育转变，如发芽和开花，但它们也不断塑造发育，以适应当地生境和微气候。植物对不断变化且有时不利的环境作出反应的能力是其巨大成功的基础。这种生长和发育可塑性的很大一部分是通过光对生长素信号系统的调节实现的。在本文中，我们研究了光与生长素之间的联系，这些联系引发了局部反应、长距离信号传递以及地上部和根部之间的协调生长。
