Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F19%3A00507913" target="_blank" >RIV/61389030:_____/19:00507913 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/19:73598615
Result on the web
<a href="http://dx.doi.org/10.1038/s41467-019-11483-4" target="_blank" >http://dx.doi.org/10.1038/s41467-019-11483-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-019-11483-4" target="_blank" >10.1038/s41467-019-11483-4</a>

Result language
angličtina
Original language name
Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots
Original language description
Directional organ growth allows the plant root system to strategically cover its surroundings. Intercellular auxin transport is aligned with the gravity vector in the primary root tips, facilitating downward organ bending at the lower root flank. Here we show that cytokinin signaling functions as a lateral root specific anti-gravitropic component, promoting the radial distribution of the root system. We performed a genome-wide association study and reveal that signal peptide processing of Cytokinin Oxidase 2 (CKX2) affects its enzymatic activity and, thereby, determines the degradation of cytokinins in natural Arabidopsis thaliana accessions. Cytokinin signaling interferes with growth at the upper lateral root flank and thereby prevents downward bending. Our interdisciplinary approach proposes that two phytohormonal cues at opposite organ flanks counterbalance each other’s negative impact on growth, suppressing organ growth towards gravity and allow for radial expansion of the root system.
Czech name
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Czech description
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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
10608 - Biochemistry and molecular biology

Project
<a href="/en/project/LO1204" target="_blank" >LO1204: Sustainable development of research in the Centre of the Region Haná</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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