About: Local induction of senescence by darkness in Cucurbita pepo (zucchini) cotyledons or the primary leaf induces opposite effects in the adjacent illuminated organ

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About: Local induction of senescence by darkness in Cucurbita pepo (zucchini) cotyledons or the primary leaf induces opposite effects in the adjacent illuminated organ Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Local darkening of zucchini cotyledons or the adjacent leaf affected in an organ-specific manner the adjacent ones which remained under the initial light regime. Darkening of the pair of cotyledons induced a reduction of total cytokinin (CK) levels and increase CK oxidase/dehydrogenase (CKX) activity in the adjacent illuminated primary leaf. Content of abscisic acid (ABA) was increased which correlated with reduced stomatal aperture. In contrast, darkening of adjacent primary leaf led to the increase in total CK levels in parallel with decreased CKX activity, decrease of ABA content in correlation with increased stomatal aperture. Three photosynthesis-related genes psbA, psaB and rbcL remained almost unaffected in both illuminated organs. Results indicate involvement of CKX and ABA signaling in the control of communication mechanisms between cotyledons and the primary leaf which could operate in response to changing environmental factors. Local darkening of zucchini cotyledons or the adjacent leaf affected in an organ-specific manner the adjacent ones which remained under the initial light regime. Darkening of the pair of cotyledons induced a reduction of total cytokinin (CK) levels and increase CK oxidase/dehydrogenase (CKX) activity in the adjacent illuminated primary leaf. Content of abscisic acid (ABA) was increased which correlated with reduced stomatal aperture. In contrast, darkening of adjacent primary leaf led to the increase in total CK levels in parallel with decreased CKX activity, decrease of ABA content in correlation with increased stomatal aperture. Three photosynthesis-related genes psbA, psaB and rbcL remained almost unaffected in both illuminated organs. Results indicate involvement of CKX and ABA signaling in the control of communication mechanisms between cotyledons and the primary leaf which could operate in response to changing environmental factors. (en)
Title	Local induction of senescence by darkness in Cucurbita pepo (zucchini) cotyledons or the primary leaf induces opposite effects in the adjacent illuminated organ Local induction of senescence by darkness in Cucurbita pepo (zucchini) cotyledons or the primary leaf induces opposite effects in the adjacent illuminated organ (en)
skos:prefLabel	Local induction of senescence by darkness in Cucurbita pepo (zucchini) cotyledons or the primary leaf induces opposite effects in the adjacent illuminated organ Local induction of senescence by darkness in Cucurbita pepo (zucchini) cotyledons or the primary leaf induces opposite effects in the adjacent illuminated organ (en)
skos:notation	RIV/61389030:_____/11:00368552!RIV12-AV0-61389030
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M06030), P(IAA600380701), P(IAA600380805), P(LC06034), Z(AV0Z50380511)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Motyka, Václav Dobrev, Petre Malbeck, Jiří Kamínek, Miroslav
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	Ústav experimentální botaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	209797
http://linked.open...ai/riv/idVysledku	RIV/61389030:_____/11:00368552
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Abscisic acid; Cotyledons; Cytokinins (en)
http://linked.open.../riv/klicoveSlovo	Cytokinins Abscisic acid Cotyledons
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[60C929FD1E06]
http://linked.open...i/riv/nazevZdroje	Plant Growth Regulation
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Alternative ways regulating intra- and extracellular concentrations and activities of isoprenoid cytokinins in plants Regulation of morphogenesis of plant cells and organs Functional genomics and proteomics for crop improvement Metabolic regulations of root to shoot hormonal signaling in plants
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	65
http://linked.open...iv/tvurceVysledku	Dobrev, Petre Malbeck, Jiří Motyka, Václav Kamínek, Miroslav Ananiev, E. D. Ananieva, K. Doncheva, S. Mishev, K. Stefanov, D.
http://linked.open...n/vavai/riv/zamer	Mechanismy regulace růstu a vývoje rostlin na úrovni buněk, orgánů a celých organismů: fyziologické, genetické a molekulárně biologické základy
issn	0167-6903
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s10725-011-9616-8

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