Attributes | Values |
---|
rdf:type
| |
Description
| - In this study, electron paramagnetic resonance spin-trapping technique was used to study the light-induced production of superoxide anion (O2?-) and carbon-centered (R?) radicals by Photosystem II (PSII). It is evidenced here that exposure of PSII membranes to high light (2000 micromol photons m-2 s-1) or heat (47 °C) treatments prior to the illumination suppressed O2?- production, while R? was formed. Formation of R? in the both high light- and heat-treated PSII membranes was enhanced by DCMU. Removal of molecular oxygen by glucose/glucose oxidase/catalase system and O2?- scavenging by exogenous superoxide dismutase completely suppressed carbon-centered radical formation. It is proposed here that the oxidation of polyunsaturated fatty or amino acid by O2?- on the electron acceptor side of PSII results in the formation of R?, known to initiate a cascade reaction leading to the lipid peroxidation and protein degradation.
- In this study, electron paramagnetic resonance spin-trapping technique was used to study the light-induced production of superoxide anion (O2?-) and carbon-centered (R?) radicals by Photosystem II (PSII). It is evidenced here that exposure of PSII membranes to high light (2000 micromol photons m-2 s-1) or heat (47 °C) treatments prior to the illumination suppressed O2?- production, while R? was formed. Formation of R? in the both high light- and heat-treated PSII membranes was enhanced by DCMU. Removal of molecular oxygen by glucose/glucose oxidase/catalase system and O2?- scavenging by exogenous superoxide dismutase completely suppressed carbon-centered radical formation. It is proposed here that the oxidation of polyunsaturated fatty or amino acid by O2?- on the electron acceptor side of PSII results in the formation of R?, known to initiate a cascade reaction leading to the lipid peroxidation and protein degradation. (en)
|
Title
| - Formation of superoxide anion and carbon-centered radicals by photosystem II under high light and heat stress-EPR spin-trapping study
- Formation of superoxide anion and carbon-centered radicals by photosystem II under high light and heat stress-EPR spin-trapping study (en)
|
skos:prefLabel
| - Formation of superoxide anion and carbon-centered radicals by photosystem II under high light and heat stress-EPR spin-trapping study
- Formation of superoxide anion and carbon-centered radicals by photosystem II under high light and heat stress-EPR spin-trapping study (en)
|
skos:notation
| - RIV/61989592:15310/13:33145242!RIV14-MSM-15310___
|
http://linked.open...avai/riv/aktivita
| |
http://linked.open...avai/riv/aktivity
| - P(ED0007/01/01), P(EE2.3.20.0057)
|
http://linked.open...iv/cisloPeriodika
| |
http://linked.open...vai/riv/dodaniDat
| |
http://linked.open...aciTvurceVysledku
| |
http://linked.open.../riv/druhVysledku
| |
http://linked.open...iv/duvernostUdaju
| |
http://linked.open...titaPredkladatele
| |
http://linked.open...dnocenehoVysledku
| |
http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/13:33145242
|
http://linked.open...riv/jazykVysledku
| |
http://linked.open.../riv/klicovaSlova
| - Redox potential; Reactive oxygen species; Photosystem II; Photoinhibition; Heat stress (en)
|
http://linked.open.../riv/klicoveSlovo
| |
http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
|
http://linked.open...ontrolniKodProRIV
| |
http://linked.open...i/riv/nazevZdroje
| - Journal of Bioenergetics and Biomembranes
|
http://linked.open...in/vavai/riv/obor
| |
http://linked.open...ichTvurcuVysledku
| |
http://linked.open...cetTvurcuVysledku
| |
http://linked.open...vavai/riv/projekt
| |
http://linked.open...UplatneniVysledku
| |
http://linked.open...v/svazekPeriodika
| |
http://linked.open...iv/tvurceVysledku
| - Pospíšil, Pavel
- Rác, Marek
- Tiwari, Arjun
|
http://linked.open...ain/vavai/riv/wos
| |
issn
| |
number of pages
| |
http://bibframe.org/vocab/doi
| - 10.1007/s10863-013-9523-y
|
http://localhost/t...ganizacniJednotka
| |