光敏素，是植物体内的一种蛋白。（光敏素+发色团=>光敏色素）有钝化型和活化型两种形式，分别吸收红光和远红光而相互转化。植物主要通过这种色素接收外界的光信号来调节本身的生长和发育。
In higher plants, there are at least three kinds of light receptors to capture light signal: phytochrome, cryptochromes and phototropin, which receptor absorb different spectrum of light.
在高等植物体内,至少存在三种光受体捕捉光信号:光敏素,蓝光/UV-A受体和UV-B受体,每一种光受体吸收不同光谱的光。
参考来源 - 光和赤霉素对拟南芥光形态建成及木质素生物合成的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
种子休眠机理主要围绕透性、抑制剂作用和光敏素转化等方面的研究而建立。
Seed dormancy mechanisms mainly focus on seed permeability, inhibitor action and photofrin transformation.
根据上述研究发现探讨了植物光敏素作用模式与不同向光性反应信号转导途径之间可能存在的相互关系。
Relation between phytochrome action modes and possible multiple pathways for phototropic signal transduction was analyzed based on the experiment results.
来自犹他州大学的日常食物处理专家Donald McMahon博士说到，牛奶是一种易受影响的物质，因为它含有的核黄素(维生素b2)是个光敏性物质。
Milk is especially susceptible because the riboflavin (vitamin B2) it contains ACTS as a photosensitizer, says Donald McMahon, PhD, an expert in dairy foods processing at Utah State University.
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