About: Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis

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About: Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Functional analyses of CK-deficient AtCKX overexpressers or atipt mutant provided direct evidence that CKs negatively regulate salt and drought stress signalings. All of the AtCKX overexpressers and the atipt1 3 5 7 mutant with reduced levels of various CKs exhibited a strong stress tolerant phenotype that was associated with increased cell membrane integrity and stability rather than stomatal density and ABA-mediated stomatal closure. Expression of all AtIPT genes and the majority of the AtCKX genes was repressed by stress and ABA treatments. Additionally, while CK deficiency increased sensitivity to exogenous ABA, it caused down-regulation of key ABA biosynthetic genes, leading to a significant reduction in endogenous ABA levels in CK-deficient plants relative to wild-type. These data demonstrate the importance of the ABA/CK ratio and a vital CK-dependent homeostatic control of ABA metabolism, ABA sensing and response. Functional analyses of CK-deficient AtCKX overexpressers or atipt mutant provided direct evidence that CKs negatively regulate salt and drought stress signalings. All of the AtCKX overexpressers and the atipt1 3 5 7 mutant with reduced levels of various CKs exhibited a strong stress tolerant phenotype that was associated with increased cell membrane integrity and stability rather than stomatal density and ABA-mediated stomatal closure. Expression of all AtIPT genes and the majority of the AtCKX genes was repressed by stress and ABA treatments. Additionally, while CK deficiency increased sensitivity to exogenous ABA, it caused down-regulation of key ABA biosynthetic genes, leading to a significant reduction in endogenous ABA levels in CK-deficient plants relative to wild-type. These data demonstrate the importance of the ABA/CK ratio and a vital CK-dependent homeostatic control of ABA metabolism, ABA sensing and response. (en)
Title	Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis (en)
skos:prefLabel	Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis (en)
skos:notation	RIV/61389030:_____/11:00365273!RIV12-AV0-61389030
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z50380511)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Vaňková, Radomíra
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	185631
http://linked.open...ai/riv/idVysledku	RIV/61389030:_____/11:00365273
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	TRANSGENIC TOBACCO PLANTS; WATER-STRESS; LEAF SENESCENCE (en)
http://linked.open.../riv/klicoveSlovo	LEAF SENESCENCE TRANSGENIC TOBACCO PLANTS WATER-STRESS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[47E668661028]
http://linked.open...i/riv/nazevZdroje	Plant Cell
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	13 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	23
http://linked.open...iv/tvurceVysledku	Nishiyama, R. Schmülling, T. Tran, L. S. P. Vaňková, Radomíra Watanabe, Y. Werner, T.
http://linked.open...ain/vavai/riv/wos	000293224200013
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	1040-4651
number of pages	15 (xsd:int)
http://bibframe.org/vocab/doi	10.1105/tpc.111.087395

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