The UVR8 photoreceptor accumulates in nuclei in response to UV-B in Arabidopsis thaliana (see Yin et al., 2016)
The single-celled green algae Chlamydomonas reinhardtii acclimate to UV-B (see Allorent et al., 2016)
HPTLC analysis of methanolic extracts from Arabidopsis seedlings showing flavonol glycoside accumulation in response to supplementary UV-B radiation (see Stracke et al., 2010)
UV-B perception and signalling in plants
Plant Molecular Biology
Sunlight is of utmost importance to plants, not only as energy source but also as an environmental signal regulating growth and development. An important and increasing part of the incident sunlight encompasses a segment of the ultraviolet-B region (UV-B; 280-315 nm) that is not entirely absorbed by the ozone layer in the stratosphere of the Earth. UV-B radiation is potentially harmful for any organism exposed to it, but is also used as an informational signal for which plants have evolved specific and sensitive UV-B perception systems promoting UV-B acclimation and tolerance. Our understanding of this UV-B sensory pathway is presently limited to a small number of major players, and even less is known on their interplay, regulations and mechanisms of action. The major aim of our laboratory is a better understanding of UV-B perception and signalling in plants that leads to UV-B acclimation and survival.
- Photoreceptor-mediated regulation of the COP1-SPA E3 ubiquitin ligase complex
Podolec, Roman and Ulm, Roman
Curr. Opin. Plant Biol. 45: 18-25, https://doi.org/10.1016/j.pbi.2018.04.018 MAY 2018
- Coping with 'Dark Sides of the Sun' through Photoreceptor Signaling
Demarsy, Emilie; Goldschmidt-Clermont, Michel; Ulm, Roman
TRENDS IN PLANT SCIENCE, 23 (3):260-271; https://doi.org/10.1016/j.tplants.2017.11.007 MAR 2018
- Perception of sunflecks by the UV-B photoreceptor UV RESISTANCE LOCUS 8
Victoria Moriconi, Melanie Binkert, María Cecilia Costigliolo Rojas, Romina Sellaro, Roman Ulm, Jorge Jose Casal
Plant Physiology, https://doi.org/10.1104/pp.18.00048
- How plants cope with UV-B: from perception to response
Yin, Ruohe; Ulm, Roman
CURRENT OPINION IN PLANT BIOLOGY, 37: 42-48, 10.1016/j.pbi.2017.03.013 JUN 2017
- Expression of the UVR8 photoreceptor in different tissues reveals tissue-autonomous features of UV-B signalling
Bernula, Peter; Crocco, Carlos Daniel; Arongaus, Adriana Beatriz; et al.
PLANT CELL AND ENVIRONMENT, 40 (7): 1104-1114, 10.1111/pce.12904 JUL 2017
- UV-B photoreceptor-mediated protection of the photosynthetic machinery in Chlamydomonas reinhardtii
Allorent, Guillaume; Lefebvre-Legendre, Linnka; Chappuis, Richard; et al.
ROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 113 (51): 14864-14869, 10.1073/pnas.1607695114 DEC 20 2016