Rizzini, L. et al. (2011) Perception of UV-B by the arabidopsis UVR8 protein. Science, 332(6025), pp. 103-106. (doi: 10.1126/science.1200660) (PMID:21454788)
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Abstract
To optimize their growth and survival, plants perceive and respond to ultraviolet-B ( UV-B) radiation. However, neither the molecular identity of the UV-B photoreceptor nor the photoperception mechanism is known. Here we show that dimers of the UVR8 protein perceive UV-B, probably by a tryptophan-based mechanism. Absorption of UV-B induces instant monomerization of the photoreceptor and interaction with COP1, the central regulator of light signaling. Thereby this signaling cascade controlled by UVR8 mediates UV-B photomorphogenic responses securing plant acclimation and thus promotes survival in sunlight
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Cloix, Dr Catherine and Kaiserli, Dr Eirini and Jenkins, Professor Gareth |
| Authors: | Rizzini, L., Favory, J.-J., Cloix, C., Faggionato, D., O'Hara, A., Kaiserli, E., Baumeister, R., Schafer, E., Nagy, F., Jenkins, G.I., and Ulm, R. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Molecular Biosciences |
| Journal Name: | Science |
| Publisher: | American Association for the Advancement of Science |
| ISSN: | 0036-8075 |
| ISSN (Online): | 1095-9203 |
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