About: Quality Control of Photosystem II: Reactive Oxygen Species are Responsible for the Damage to Photosystem II under Moderate Heat Stress

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About: Quality Control of Photosystem II: Reactive Oxygen Species are Responsible for the Damage to Photosystem II under Moderate Heat Stress Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Moderate heat stress (40 °C for 30 min) on spinach thylakoid membranes induced cleavage of the reaction center-binding D1 protein of photosystem II, aggregation of the D1 protein with the neighboring polypeptides D2 and CP43, and release of three extrinsic proteins, PsbO, -P, and -Q. These heat-induced events were suppressed under anaerobic conditions or by the addition of sodium ascorbate, a general scavenger of reactive oxygen species. In accordance with this, singlet oxygen and hydroxyl radicals were detected in spinach photosystem II membranes incubated at 40 °C for 30 min with electron paramagnetic resonance spin-trapping spectroscopy. The moderate heat stress also induced significant lipid peroxidation under aerobic conditions. We suggest that the reactive oxygen species are generated by heat-induced inactivation of a water-oxidizing manganese complex and through lipid peroxidation. Although occurring in the dark, the damages caused by the moderate heat stress to photosystem II are quite similar Moderate heat stress (40 °C for 30 min) on spinach thylakoid membranes induced cleavage of the reaction center-binding D1 protein of photosystem II, aggregation of the D1 protein with the neighboring polypeptides D2 and CP43, and release of three extrinsic proteins, PsbO, -P, and -Q. These heat-induced events were suppressed under anaerobic conditions or by the addition of sodium ascorbate, a general scavenger of reactive oxygen species. In accordance with this, singlet oxygen and hydroxyl radicals were detected in spinach photosystem II membranes incubated at 40 °C for 30 min with electron paramagnetic resonance spin-trapping spectroscopy. The moderate heat stress also induced significant lipid peroxidation under aerobic conditions. We suggest that the reactive oxygen species are generated by heat-induced inactivation of a water-oxidizing manganese complex and through lipid peroxidation. Although occurring in the dark, the damages caused by the moderate heat stress to photosystem II are quite similar (en)
Title	Quality Control of Photosystem II: Reactive Oxygen Species are Responsible for the Damage to Photosystem II under Moderate Heat Stress Quality Control of Photosystem II: Reactive Oxygen Species are Responsible for the Damage to Photosystem II under Moderate Heat Stress (en)
skos:prefLabel	Quality Control of Photosystem II: Reactive Oxygen Species are Responsible for the Damage to Photosystem II under Moderate Heat Stress Quality Control of Photosystem II: Reactive Oxygen Species are Responsible for the Damage to Photosystem II under Moderate Heat Stress (en)
skos:notation	RIV/61989592:15310/08:00005291!RIV10-MSM-15310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA522/06/0979), Z(MSM6198959215)
http://linked.open...iv/cisloPeriodika	42
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Pospíšil, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	391176
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/08:00005291
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photosystem II; heat stress; free radicals (en)
http://linked.open.../riv/klicoveSlovo	free radicals heat stress photosystem II
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[A3A194003643]
http://linked.open...i/riv/nazevZdroje	Journal of Biological Chemistry
http://linked.open...in/vavai/riv/obor	CE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Mechanisms of plant resistance against ROS induced in photosynthetic apparatus by a photoinhibitory stress
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	283
http://linked.open...iv/tvurceVysledku	Pospíšil, Pavel Morita, Noriko Nijo, Nobuyoshi Yamamoto, Yasusi Yamamoto, Yoko Yamashita, Amu Aminaka, Ryota Takenaka, Daichi
http://linked.open...n/vavai/riv/zamer	Variabilita složek a interakcí v rostlinném patosystému a vliv faktorů prostředí na jejich projev
issn	0021-9258
number of pages	12 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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