To grow and develop optimally, all organisms need to perceive and process information from both their biotic and abiotic surroundings. A particularly important environmental cue is light, to which organisms respond in many different ways. Because they are photosynthetic and non-motile, plants need to be especially plastic in response to their light environment. The diverse responses of plants to light require sophisticated sensing of its intensity, direction, duration, and wavelength. The action spectra of light responses provided assays to identify three photoreceptor systems absorbing in the red/far-red, blue/near-ultraviolet, and ultraviolet spectral ranges. Following absorption of light, photoreceptors interact with other signal transduction elements, which eventually leads to many molecular and morphological responses. While a complete signal transduction cascade is not known yet, molecular genetic studies using the model plant Arabidopsis have led to substantial progress in dissecting the signal transduction network. Important gains have been made in determining the function of the photoreceptors, the terminal response pathways, and the intervening signal transduction components.

中文翻译：

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光控制植物的发育。

为了最佳地生长和发育，所有生物都需要从其生物和非生物环境中感知和处理信息。一个特别重要的环境提示是光，生物对光有多种不同的反应。因为它们是光合作用且不运动的，所以植物必须特别适合塑料以适应其光照环境。植物对光的不同响应需要对光的强度，方向，持续时间和波长进行复杂的检测。光响应的动作光谱提供了测定，以鉴定在红/远红，蓝/近紫外和紫外线光谱范围内吸收的三种感光系统。吸收光后，感光体与其他信号转导元件相互作用，最终导致许多分子和形态学反应。尽管尚不知道完整的信号转导级联反应，但使用模型植物拟南芥进行的分子遗传学研究已在解剖信号转导网络方面取得了实质性进展。在确定感光器的功能，末端反应途径和中间信号转导成分方面取得了重要进展。