Cytokinin signalling regulates organ identity via AHK4 receptor in Arabidopsis.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F18%3A00101227" target="_blank" >RIV/00216224:14740/18:00101227 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1242/dev.163907" target="_blank" >http://dx.doi.org/10.1242/dev.163907</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1242/dev.163907" target="_blank" >10.1242/dev.163907</a>
Alternative languages
Result language
angličtina
Original language name
Cytokinin signalling regulates organ identity via AHK4 receptor in Arabidopsis.
Original language description
Mutual interactions of the phytohormones cytokinins and auxin determine root or shoot identity during postembryonic de novo organogenesis in plants. However, our understanding to the role of hormonal metabolism and perception during early stages of cell fate reprograming is still elusive. In the hypocotyl explant assay, auxin activated root formation while cytokinins mediated early loss of the root identity, primordia disorganization and initiation of shoot development. Exogenous but also endogenous cytokinins influenced the initiation of newly formed organs as well as the pace of organ developmental sequence. The process of de novo shoot apical meristem establishment was accompanied by accumulation of endogenous cytokinins, differential regulation of genes for individual cytokinin receptors, strong activation of AHK4-mediated signalling and induction of shoot-specific homeodomain regulator WUSCHEL. The latter associated with upregulation of isopentenyladenine-type cytokinins, revealing higher shoot-forming potential when compared with trans-zeatin. Moreover, AHK4-controlled cytokinin signalling negatively regulated root stem cell organizer WUSCHEL RELATED HOMEOBOX 5 in the root quiescent centre. We propose an important role of endogenous cytokinin biosynthesis and AHK4-mediated cytokinin signalling in the control of de novo induced organ identity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10605 - Developmental biology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Development
ISSN
0950-1991
e-ISSN
1477-9129
Volume of the periodical
145
Issue of the periodical within the volume
14
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000440421300010
EID of the result in the Scopus database
2-s2.0-85050750952