Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F16%3A00088005" target="_blank" >RIV/00216224:14740/16:00088005 - isvavai.cz</a>
Result on the web
<a href="http://onlinelibrary.wiley.com/doi/10.1111/nph.14049/abstract;jsessionid=06B6FBE103A10C93E72D3E2472F1E40A.f02t03" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/nph.14049/abstract;jsessionid=06B6FBE103A10C93E72D3E2472F1E40A.f02t03</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/nph.14049" target="_blank" >10.1111/nph.14049</a>

Result language
angličtina
Original language name
Cytokinins influence root gravitropism via differential regulation of auxin transporter expression and localization in Arabidopsis
Original language description
• Redirection of intercellular auxin fluxes via relocalization of the PIN3 and PIN7 auxin efflux carriers has been suggested to be necessary for the root gravitropic response. Cytokinins have also been proposed to play a role in controlling root gravitropism, but conclusive evidence is lacking. • We present a detailed study of the dynamics of root bending early after gravistimulation, which revealed a delayed gravitropic response in transgenic lines with depleted endogenous cytokinins (Pro35S:AtCKX) and cytokinin signaling mutants. Pro35S:AtCKX lines as well as a cytokinin receptor mutant ahk3 showed aberrations in the auxin response distribution in columella cells consistent with defects in the auxin transport machinery. • Using in vivo real-time imaging of PIN3-GFP and PIN7-GFP in AtCKX3 overexpression and ahk3 backgrounds, we observed wild type-like relocalization of PIN proteins in columella early after gravistimulation, with gravity-induced relocalization of PIN7 faster than that of PIN3.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EB - Genetics and molecular biology
OECD FORD branch
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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)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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