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How do cryptochrome...
How do cryptochromes and UVR8 interact in natural and simulated sunlight?
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- Rai, Neha (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland
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- Neugart, Susanne (author)
- Research Area of Plant Quality and Food Security, Leibniz Institute of Vegetable and Ornamental Crops e. V., Grossbeeren, Germany
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- Yan, Yan (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland
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- Wang, Fang (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland
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- Siipola, Sari M. (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland
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- Lindfors, Anders V. (author)
- Finnish Meteorological Institute, Helsinki, Finland
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- Winkler, Jana Barbro (author)
- Research Unit Environmental Simulation, Helmholtz Zentrum München, Neuherberg, Germany
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- Albert, Andreas (author)
- Research Unit Environmental Simulation, Helmholtz Zentrum München, Neuherberg, Germany
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- Brosché, Mikael (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland
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- Lehto, Tarja (author)
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
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- Morales, Luis Orlando, 1974- (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland,Molecular Biochemistry
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- Aphalo, Pedro J. (author)
- Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland
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Organismal and Evolutionary Biology Research Programme, Viikki Plant Science Centre (ViPS), University of Helsinki, Helsinki, Finland Research Area of Plant Quality and Food Security, Leibniz Institute of Vegetable and Ornamental Crops e V., Grossbeeren, Germany (creator_code:org_t)
- 2019-05-17
- 2019
- English.
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In: Journal of Experimental Botany. - : Oxford University Press. - 0022-0957 .- 1460-2431. ; 70:18, s. 4975-4990
- Related links:
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https://doi.org/10.1...
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Abstract
Subject headings
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- Cryptochromes (CRYs) and UV RESISTANCE LOCUS 8 (UVR8) photoreceptors perceive UV-A/blue (315–500 nm) and UV-B (280–315 nm) radiation in plants, respectively. While the roles of CRYs and UVR8 have been studied in separate controlled environment experiments, little is known about the interaction between these photoreceptors. Here, Arabidopsis thaliana wild-type Ler, CRYs and UVR8 photoreceptor mutants (uvr82, cry1cry2 and cry1cry2uvr82), and a flavonoid biosynthesis defective mutant (tt4) were grown in a sun simulator. Plants were exposed to filtered radiation for 17 d or for 6 h, to study the effects of blue, UV-A and UV-B radiation. Both CRYs and UVR8 independently enabled growth and survival of plants under solar levels of UV, while their joint absence was lethal under UV-B. CRYs mediated gene expression under blue light. UVR8 mediated gene expression under UV-B radiation, and in the absence of CRYs, also under UV-A. This negative regulation of UVR8-mediated gene expression by CRYs was also observed for UV-B. The accumulation of flavonoids was also consistent with this interaction between CRYs and UVR8. In conclusion, we provide evidence for an antagonistic interaction between CRYs and UVR8 and a role of UVR8 in UV-A perception.
Subject headings
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Keyword
- Arabidopsis thaliana
- blue light
- cryptochromes
- flavonoids
- photoreceptor interaction
- sun simulator
- solar radiation
- transcript abundance
- ultraviolet radiation
- UVR8
- Biology
- Biologi
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Rai, Neha
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Neugart, Susanne
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Yan, Yan
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Wang, Fang
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Siipola, Sari M.
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Lindfors, Anders ...
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show more...
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Winkler, Jana Ba ...
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Albert, Andreas
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Brosché, Mikael
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Lehto, Tarja
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Morales, Luis Or ...
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Aphalo, Pedro J.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Genetics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Botany
- Articles in the publication
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Journal of Exper ...
- By the university
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Örebro University