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Chinese Bulletin of Botany >

2012 , Vol. 47 >Issue 6: 661 - 669

DOI: https://doi.org/10.3724/SP.J.1259.2012.00661

Arabidopsis UV-B Photoreceptor and Its Light Signal Transduction in Plants

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  • College of Life Sciences, Northeast Forestry University, Harbin 150040, China

Received date: 2012-03-27

  Revised date: 2012-06-24

  Online published: 2012-09-04

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Abstract

The Arabidopsis thaliana protein UVR8 is a photoreceptor for ultraviolet-B, mediating UV-B-induced photomorphogenesis. Under light conditions devoid of UV-B, UVR8 is localized in both the cytoplasm and nucleus as homodimers. Absorption of UV-B promotes the nuclear accumulation and instant monomerization of the photoreceptor, then interacts with CONSTITUTIVELY PHOTOMORPHOGENIC 1 to orchestrate a series of genes essential for UV-B protection. Besides being a UV-B-specific photoreceptor, UVR8 plays an important role in the cell to mediate the whole-plant UV-B response. This review focuses on recent understandings of the structure and physiological function of UVR8 and molecular mechanism of UVR8-mediated UV-B signal transduction.

Cite this article

Mingxue Liu, Mei Sun, Yu Wang, Yuhua Li . Arabidopsis UV-B Photoreceptor and Its Light Signal Transduction in Plants[J]. Chinese Bulletin of Botany, 2012 , 47(6) : 661 -669 . DOI: 10.3724/SP.J.1259.2012.00661

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