About: Cytokinin-induced photomorphogenesis in dark-grown Arabidopsis: a proteomic analysis

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About: Cytokinin-induced photomorphogenesis in dark-grown Arabidopsis: a proteomic analysis Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	High concentrations of cytokinins (CKs) in the cultivation medium can induce partial photomorphogenesis in dark-grown Arabidopsis seedlings. However, no significant increases in endogenous CK levels have been found in de-etiolated mutants, suggesting that either parallel pathways are involved in the light and CK responses, or changes in the sensitivity to CKs occur during photomorphogenesis. Here it is shown that even modest increases in endogenous CK levels induced by transgenic expression of the CK biosynthetic gene, ipt, can lead to many typical features of light-induced de-etiolation, including inhibition of hypocotyl elongation and partial cotyledon opening. In addition, significant changes in expression of 37 proteins (mostly related to chloroplast biogenesis, a major element of light-induced photomorphogenesis) were detected by image and mass spectrometric analysis of two-dimensionally separated proteins. The identified chloroplast proteins were all up-regulated in response to increased CKs, an High concentrations of cytokinins (CKs) in the cultivation medium can induce partial photomorphogenesis in dark-grown Arabidopsis seedlings. However, no significant increases in endogenous CK levels have been found in de-etiolated mutants, suggesting that either parallel pathways are involved in the light and CK responses, or changes in the sensitivity to CKs occur during photomorphogenesis. Here it is shown that even modest increases in endogenous CK levels induced by transgenic expression of the CK biosynthetic gene, ipt, can lead to many typical features of light-induced de-etiolation, including inhibition of hypocotyl elongation and partial cotyledon opening. In addition, significant changes in expression of 37 proteins (mostly related to chloroplast biogenesis, a major element of light-induced photomorphogenesis) were detected by image and mass spectrometric analysis of two-dimensionally separated proteins. The identified chloroplast proteins were all up-regulated in response to increased CKs, an (en)
Title	Cytokinin-induced photomorphogenesis in dark-grown Arabidopsis: a proteomic analysis Cytokinin-induced photomorphogenesis in dark-grown Arabidopsis: a proteomic analysis (en)
skos:prefLabel	Cytokinin-induced photomorphogenesis in dark-grown Arabidopsis: a proteomic analysis Cytokinin-induced photomorphogenesis in dark-grown Arabidopsis: a proteomic analysis (en)
skos:notation	RIV/62156489:43210/08:00132733!RIV10-MSM-43210___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M06030), P(IAA600040612), P(IAA600040701), P(LC06034), Z(AV0Z50040507), Z(AV0Z50040702), Z(AV0Z50380511), Z(MSM0021622415)
http://linked.open...iv/cisloPeriodika	13
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Koukalová, Šárka Souček, Přemysl Brzobohatý, Břetislav Kiran, Nagavalli Subbanna
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	Mendelova univerzita v Brně / Agronomická fakulta
http://linked.open...dnocenehoVysledku	361891
http://linked.open...ai/riv/idVysledku	RIV/62156489:43210/08:00132733
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	cytokinin; proteome; Arabidopsis thaliana; photomorphogenesis; 2D electrophoresis (en)
http://linked.open.../riv/klicoveSlovo	cytokinin 2D electrophoresis photomorphogenesis Arabidopsis thaliana proteome
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[659AC7490EB8]
http://linked.open...i/riv/nazevZdroje	Journal of experimental botany
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Proteome dynamics in response to increased cytokinin levels in Arabidopsis Regulation of morphogenesis of plant cells and organs Functional genomics and proteomics for crop improvement Functional analysis of Shooting gene in Arabidopsis and tobacco
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	59
http://linked.open...iv/tvurceVysledku	Konečná, Hana Malbeck, Jiří Válková, Martina Zdráhal, Zbyněk Brzobohatý, Břetislav Souček, Přemysl Lochmanová, Gabriela Kiran, Nagavalli Subbanna Koukalová, Šárka
http://linked.open...n/vavai/riv/zamer	Biophysics of dynamic structures and functions of biological systems Genome and epigenome: 1D and 3D Structure, Dynamics, Interactions with Proteins and Functions Mechanismy regulace růstu a vývoje rostlin na úrovni buněk, orgánů a celých organismů: fyziologické, genetické a molekulárně biologické základy Molecular basis of cell and tissue regulations
issn	0022-0957
number of pages	15 (xsd:int)
http://localhost/t...ganizacniJednotka	43210

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