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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F09%3A00035261%21RIV11-MSM-14310___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Auxin and cytokinin (CK) are important regulators of the developmental fate of pluripotent plant cells. The molecular nature of their interactions is largely unknown. Here we show that CK modulates auxin-induced organogenesis (AIO) via regulation of efflux-dependent, intercellular auxin distribution. Auxin, but not CK, is capable to trigger organogenesis in hypocotyl explants. AOI is accompanied with endogenous CKs production and tissue-specific activation of CK signalling. CK affects differential auxin distribution and the CK-mediated modulation of organogenesis is simulated by inhibition of polar auxin transport. CK reduces auxin efflux from cultured tobacco cells and regulates expression of auxin efflux carriers from the PIN family in hypocotyl explants. Endogenous CK levels influence PIN transcription and are necessary to maintain intercellular auxin distribution in planta. Auxin and cytokinin (CK) are important regulators of the developmental fate of pluripotent plant cells. The molecular nature of their interactions is largely unknown. Here we show that CK modulates auxin-induced organogenesis (AIO) via regulation of efflux-dependent, intercellular auxin distribution. Auxin, but not CK, is capable to trigger organogenesis in hypocotyl explants. AOI is accompanied with endogenous CKs production and tissue-specific activation of CK signalling. CK affects differential auxin distribution and the CK-mediated modulation of organogenesis is simulated by inhibition of polar auxin transport. CK reduces auxin efflux from cultured tobacco cells and regulates expression of auxin efflux carriers from the PIN family in hypocotyl explants. Endogenous CK levels influence PIN transcription and are necessary to maintain intercellular auxin distribution in planta.
dcterms:title
Cytokinins modulate auxin-induced organogenesis in plants via regulation of the auxin efflux Cytokinins modulate auxin-induced organogenesis in plants via regulation of the auxin efflux
skos:prefLabel
Cytokinins modulate auxin-induced organogenesis in plants via regulation of the auxin efflux Cytokinins modulate auxin-induced organogenesis in plants via regulation of the auxin efflux
skos:notation
RIV/00216224:14310/09:00035261!RIV11-MSM-14310___
n4:aktivita
n8:Z n8:S n8:P
n4:aktivity
P(GD204/08/H054), P(LC06034), S, Z(AV0Z50040702), Z(AV0Z50380511), Z(MSM0021622415)
n4:cisloPeriodika
no. 9
n4:dodaniDat
n9:2011
n4:domaciTvurceVysledku
n7:3742695 n7:4390644 n7:3730832 n7:3807703 n7:2461773 n7:9205462 n7:9683887 n7:2027178 n7:8935483 n7:6662072
n4:druhVysledku
n12:J
n4:duvernostUdaju
n6:S
n4:entitaPredkladatele
n19:predkladatel
n4:idSjednocenehoVysledku
308824
n4:idVysledku
RIV/00216224:14310/09:00035261
n4:jazykVysledku
n13:eng
n4:klicovaSlova
PIN expression; two-component signalling; root meristem; auxin maxima
n4:klicoveSlovo
n10:PIN%20expression n10:auxin%20maxima n10:root%20meristem n10:two-component%20signalling
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[E62B8BF1AB92]
n4:nazevZdroje
Proceedings of the National Academy of Sciences of the United States of America
n4:obor
n18:EB
n4:pocetDomacichTvurcuVysledku
10
n4:pocetTvurcuVysledku
12
n4:projekt
n14:GD204%2F08%2FH054 n14:LC06034
n4:rokUplatneniVysledku
n9:2009
n4:svazekPeriodika
vol. 106
n4:tvurceVysledku
Hejátko, Jan Pernisová, Markéta Válková, Martina Reichman, Pavel Hoyerová, Klára Zažímalová, Eva Malbeck, Jiří Dubová, Jaroslava Souček, Přemysl Friml, Jiří Klíma, Petr Horák, Jakub
n4:wos
000263844100111
n4:zamer
n5:MSM0021622415 n5:AV0Z50380511 n5:AV0Z50040702
s:issn
0027-8424
s:numberOfPages
6
n11:organizacniJednotka
14310