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Hydrogen peroxide c...
Hydrogen peroxide contributes to the ultraviolet-B (280-315 nm) induced oxidative stress of plant leaves through multiple pathways
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- Czegeny, G. (författare)
- Institute of Biology, University of Pécs, Pécs, Hungary; Institute of Plant Biology, Biological Research Centre, Szeged, Hungary
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- Wu, Min, 1986 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden
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- Der, A. (författare)
- Institute of Biophysics, Biological Research Centre, Szeged, Hungary
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- Eriksson, Leif A, 1964 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden
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- Strid, Åke, 1960- (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Biokemi
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- Hideg, E. (författare)
- Institute of Biology, University of Pécs, Pécs, Hungary
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(creator_code:org_t)
- 2014-05-17
- 2014
- Engelska.
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Ingår i: Febs Letters. - : Wiley. - 0014-5793 .- 1873-3468. ; 588:14, s. 2255-2261
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Solar UV-B (280-315 nm) radiation is a developmental signal in plants but may also cause oxidative stress when combined with other environmental factors. Using computer modeling and in solution experiments we show that UV-B is capable of photosensitizing hydroxyl radical production from hydrogen peroxide. We present evidence that the oxidative effect of UV-B in leaves is at least twofold: (i) it increases cellular hydrogen peroxide concentrations, to a larger extent in pyridoxine antioxidant mutant pdx1.3-1 Arabidopsis and; (ii) is capable of a partial photo-conversion of both 'natural' and 'extra' hydrogen peroxide to hydroxyl radicals. As stress conditions other than UV can increase cellular hydrogen peroxide levels, synergistic deleterious effects of various stresses may be expected already under ambient solar UV-B. (C) 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Biologi -- Cellbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Cell Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biofysik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biophysics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Nyckelord
- Arabidopsis
- Computer modeling
- Hydrogen peroxide
- Hydroxyl radical
- Leaf
- Oxygen radicals
- Plant
- ELECTRON-SPIN RESONANCE
- UV-B
- REACTIVE OXYGEN
- THYLAKOID MEMBRANES
- PHOTOSYSTEM-II
- RADIATION
- PHOTOLYSIS
- RADICALS
- PHOTOSYNTHESIS
- CHLOROPLASTS
- Biochemistry & Molecular Biology
- Biophysics
- Cell Biology
- Arabidopsis; Computer modeling; Hydrogen peroxide; Hydroxyl radical; Leaf; Oxygen radicals; Photosynthesis; Plant; Terephthalic acid; UV photobiology
- Biokemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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