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Transcriptional reg...
Transcriptional regulation of photoprotection in dark-to-light transition : More than just a matter of excess light energy
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- Redekop, Petra (författare)
- Department of Plant Biology, The Carnegie Institution for Science, 260 Panama St, Stanford, CA 94305, USA.
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- Sanz-Luque, Emanuel (författare)
- Department of Plant Biology, The Carnegie Institution for Science, 260 Panama St, Stanford, CA 94305, USA.;Department of Biochemistry and Molecular Biology, University of Cordoba, 14071 Cordoba, Spain.
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- Yuan, Yizhong (författare)
- Université Grenoble Alpes, CNRS, CEA, INRAe, IRIG-LPCV, 38000 Grenoble, France.
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- Villain, Gaelle (författare)
- Université Grenoble Alpes, CNRS, CEA, INRAe, IRIG-LPCV, 38000 Grenoble, France.
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- Petroutsos, Dimitris (författare)
- Université Grenoble Alpes, CNRS, CEA, INRAe, IRIG-LPCV, 38000 Grenoble, France.
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- Grossman, Arthur R. (författare)
- Department of Plant Biology, The Carnegie Institution for Science, 260 Panama St, Stanford, CA 94305, USA.;Department of Biology, Stanford University, Stanford, CA 94305, USA.
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Department of Plant Biology, The Carnegie Institution for Science, 260 Panama St, Stanford, CA 94305, USA Department of Plant Biology, The Carnegie Institution for Science, 260 Panama St, Stanford, CA 94305, USA.;Department of Biochemistry and Molecular Biology, University of Cordoba, 14071 Cordoba, Spain. (creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2022
- 2022
- Engelska.
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Ingår i: Science Advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 8:22
- Relaterad länk:
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Abstract
Ämnesord
Stäng
- In nature, photosynthetic organisms are exposed to different light spectra and intensities depending on the time of day and atmospheric and environmental conditions. When photosynthetic cells absorb excess light, they induce nonphotochemical quenching to avoid photodamage and trigger expression of “photoprotective” genes. In this work, we used the green alga Chlamydomonas reinhardtii to assess the impact of light intensity, light quality, photosynthetic electron transport, and carbon dioxide on induction of the photoprotective genes (LHCSR1, LHCSR3, and PSBS) during dark-to-light transitions. Induction (mRNA accumulation) occurred at very low light intensity and was independently modulated by blue and ultraviolet B radiation through specific photoreceptors; only LHCSR3 was strongly controlled by carbon dioxide levels through a putative enhancer function of CIA5, a transcription factor that controls genes of the carbon concentrating mechanism. We propose a model that integrates inputs of independent signaling pathways and how they may help the cells anticipate diel conditions and survive in a dynamic light environment.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
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