STRUCTURE & EVOLUTION OF PLANT PHOTORECEPTOR PHYTOCHROME

能够适应外部光环境的变化 对植物的生存尤其重要，因为与动物不同， 植物依靠阳光进行光合作用，它们没有 神经肌肉系统，使他们能够移动到更理想的光线 环境。因此，植物具有独特的感光能力 光感受器分子光敏色素使它们能够感知 其强度、方向和光谱质量的频繁波动 它们周围环境中的光线。除了光合作用 细菌，光敏色素存在于所有光能自养生物中 将绿藻转化为高等植物。我们的研究试图提供新的见解 光敏色素感受器的结构和进化 通过光敏色素基因的比较分析 具有代表性的高等和低等植物种类。

The ability to adjust to changes in the external light environment is especially important to plant survival because, unlike animals, plants depend on sunlight for photosynthesis and they do not have a neuromuscular system which allows them to move to a more optimum light environment. Plants therefore possess the unique light-sensing photoreceptor molecule phytochrome which enables them to perceive the frequent fluctuations of intensity, direction and spectral quality of light in their environment. With the exception of photosynthetic bacteria, phytochrome is found in all photoautrophic organisms from green algae to higher plants. Our studies seek to provide new insight into the structure and evolution of the phytochrome photoreceptor through comparative analysis of the phytochrome genes from representative higher and lower plant species.