About: A subset of cytokinin two-component signaling system plays a role in cold temperature stress response in Arabidopsis

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About: A subset of cytokinin two-component signaling system plays a role in cold temperature stress response in Arabidopsis Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A multistep two-component signaling system is established as a key element of cytokinin (CK) signaling in Arabidopsis. AHK2 and AHK3 were found to be primarily involved in mediating cold to express A-type ARRs despite CK deficiency. Cold neither significantly induced AHK2 and AHK3 expression nor altered the CK contents of wild type within the 4 h during which the A-type ARRgenes exhibited peak expression in response to cold, indicating that cold might induce ARR expression via the AHK2 and AHK3 proteins. The overexpression of the cold-inducible ARR7 in Arabidopsis resulted in a hypersensitivity response to freezing temperatures under cold acclimated conditions. The ahk2 ahk3 and arr7 mutants showed hypersensitive response to abscisic acid (ABA) for germination. These results suggest that AHK2 and AHK3 and the cold-inducible A-type ARRs play a negative regulatory role in cold stress signaling via inhibition of ABA response, occurring independently of the cold acclimation pathway. A multistep two-component signaling system is established as a key element of cytokinin (CK) signaling in Arabidopsis. AHK2 and AHK3 were found to be primarily involved in mediating cold to express A-type ARRs despite CK deficiency. Cold neither significantly induced AHK2 and AHK3 expression nor altered the CK contents of wild type within the 4 h during which the A-type ARRgenes exhibited peak expression in response to cold, indicating that cold might induce ARR expression via the AHK2 and AHK3 proteins. The overexpression of the cold-inducible ARR7 in Arabidopsis resulted in a hypersensitivity response to freezing temperatures under cold acclimated conditions. The ahk2 ahk3 and arr7 mutants showed hypersensitive response to abscisic acid (ABA) for germination. These results suggest that AHK2 and AHK3 and the cold-inducible A-type ARRs play a negative regulatory role in cold stress signaling via inhibition of ABA response, occurring independently of the cold acclimation pathway. (en)
Title	A subset of cytokinin two-component signaling system plays a role in cold temperature stress response in Arabidopsis A subset of cytokinin two-component signaling system plays a role in cold temperature stress response in Arabidopsis (en)
skos:prefLabel	A subset of cytokinin two-component signaling system plays a role in cold temperature stress response in Arabidopsis A subset of cytokinin two-component signaling system plays a role in cold temperature stress response in Arabidopsis (en)
skos:notation	RIV/61389030:_____/10:00359299!RIV11-GA0-61389030
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA301/08/1649), Z(AV0Z50380511), Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	30
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Novák, Ondřej Strnad, 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	245005
http://linked.open...ai/riv/idVysledku	RIV/61389030:_____/10:00359299
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Histidine kinase; Gene-expression; Negative regulator (en)
http://linked.open.../riv/klicoveSlovo	Gene-expression Histidine kinase Negative regulator
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[33040A118F20]
http://linked.open...i/riv/nazevZdroje	Journal of Biological Chemistry
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	11 (xsd:int)
http://linked.open...vavai/riv/projekt	Modulation of cell division of normal and cancer cells by cyclin-dependent kinase inhibitors
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	285
http://linked.open...iv/tvurceVysledku	Novák, Ondřej Strnad, Miroslav Kim, J. Cho, D. J. Jeon, J. Kang, N. Y. Kim, N. Y. Kim, S. Ku, S. J. Lee, D. J. Lee, E. J.
http://linked.open...ain/vavai/riv/wos	000279999900070
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 Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0021-9258
number of pages	16 (xsd:int)

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