About: Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions.

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About: Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions. 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	Changes in the chloroplast ultrastructure and photochemical function were studied in detached barley (Hordeum vulgare L. cv. Akcent) leaf segments senescing in darkness or in continuous white light of moderate intensity (90 micromol m-2 s-1) for 5 days. A rate of senescence-induced chlorophyll degradation was similar in the dark- and light-senescing segments. The Chl a/b ratio was almost unchanged in the dark-senescing segments whereas in the light-senescing segments an increase in this ratio was observed indicating a preferential degradation of light-harvesting complexes of photosystem II. A higher level of thylakoid disorganization (especially of granal membranes) and a very high lipid peroxidation were observed in the light-senescing segments. In spite of these findings, both the maximal and actual photochemical quantum yields of the photosystem II were highly maintained in comparison with the dark-senescing segments. Changes in the chloroplast ultrastructure and photochemical function were studied in detached barley (Hordeum vulgare L. cv. Akcent) leaf segments senescing in darkness or in continuous white light of moderate intensity (90 micromol m-2 s-1) for 5 days. A rate of senescence-induced chlorophyll degradation was similar in the dark- and light-senescing segments. The Chl a/b ratio was almost unchanged in the dark-senescing segments whereas in the light-senescing segments an increase in this ratio was observed indicating a preferential degradation of light-harvesting complexes of photosystem II. A higher level of thylakoid disorganization (especially of granal membranes) and a very high lipid peroxidation were observed in the light-senescing segments. In spite of these findings, both the maximal and actual photochemical quantum yields of the photosystem II were highly maintained in comparison with the dark-senescing segments. (en)
Title	Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions. Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions. (en)
skos:prefLabel	Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions. Ultrastructural and functional changes in the chloroplasts of detached barley leaves senescing under dark and light conditions. (en)
skos:notation	RIV/61989592:15310/03:00001527!RIV/2004/GA0/153104/N
http://linked.open.../vavai/riv/strany	1051-1058
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GP522/01/P098), Z(MSM 153100010)
http://linked.open...iv/cisloPeriodika	N
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Novotný, Radko Ilík, Petr Skotnica, Jiří Nauš, Jan Špundová, Martina
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	631987
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/03:00001527
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	chloroplasts; ultrastructural changes; functional changes; (en)
http://linked.open.../riv/klicoveSlovo	chloroplasts functional changes ultrastructural changes
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[49475CA8390F]
http://linked.open...i/riv/nazevZdroje	Journal of Plant Physiology
http://linked.open...in/vavai/riv/obor	BO
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Effect of flight and plant integrity on functional and structural changes of thylakoid membranes during senescence
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	160
http://linked.open...iv/tvurceVysledku	Novotný, Radko Popelková, Hana Ilík, Petr Nauš, Jan Špundová, Martina Skotnica, Jiří
http://linked.open...n/vavai/riv/zamer	http://linked.opendata.cz/resource/domain/vavai/zamer/MSM%20153100010
issn	0176-1617
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	15310

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