Although it is well known that plants respond to UV-B light, how UV-B regulates plant growth and development in an organ-specific manner remains unknown. Two recent reports by Yang et al. and Qian et al. show that the UV-B photoreceptor UVR8 interacts with different MYB transcription factors in arabidopsis (A. thaliana) cotyledons and roots to control cotyledon expansion and lateral root growth, respectively.

中文翻译：

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UV-B响应：当UVR8符合MYB时。

尽管众所周知植物对UV-B光有反应，但是UV-B如何以器官特异性方式调节植物的生长和发育仍然未知。Yang等人最近的两次报道。和钱等。结果表明，UV-B感光体UVR8与拟南芥子叶和根中的不同MYB转录因子相互作用，分别控制子叶的扩增和侧根的生长。