Exploring the role of cytokinins in organ initiation and phyllotaxis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00124831" target="_blank" >RIV/00216224:14310/19:00124831 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Exploring the role of cytokinins in organ initiation and phyllotaxis

Popis výsledku v původním jazyce

Development through the reiterative organogenesis is common in eukaryote development. In plants, new organs are periodically initiated in a regular pattern called phyllotaxis. Self-organization of phyllotaxis is driven by spatio-temporal distribution of the hormone auxin and the temporal robustness of the pattern is also under the influence of another hormone, cytokinin. We have found using expression analysis that several cytokinin biosynthetic enzymes from the LONELY GUY family (LOGs) are potentially upregulated by auxin in Arabidopsis. We have analyzed the expression of all LOGs in the shoot apical meristem and identified several LOGs differentially expressed in the meristem. Additionally, we have analyzed phyllotaxis of single log mutants to test their contribution to shoot apical meristem patterning. We have found mutants showing higher variability in divergence angles between successive organs, suggesting an involvement of cytokinin also in the robustness of angle specification in phyllotaxis.

Název v anglickém jazyce

Exploring the role of cytokinins in organ initiation and phyllotaxis

Popis výsledku anglicky

Development through the reiterative organogenesis is common in eukaryote development. In plants, new organs are periodically initiated in a regular pattern called phyllotaxis. Self-organization of phyllotaxis is driven by spatio-temporal distribution of the hormone auxin and the temporal robustness of the pattern is also under the influence of another hormone, cytokinin. We have found using expression analysis that several cytokinin biosynthetic enzymes from the LONELY GUY family (LOGs) are potentially upregulated by auxin in Arabidopsis. We have analyzed the expression of all LOGs in the shoot apical meristem and identified several LOGs differentially expressed in the meristem. Additionally, we have analyzed phyllotaxis of single log mutants to test their contribution to shoot apical meristem patterning. We have found mutants showing higher variability in divergence angles between successive organs, suggesting an involvement of cytokinin also in the robustness of angle specification in phyllotaxis.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

10600 - Biological sciences

Projekt

<a href="/cs/project/EF17_050%2F0008496" target="_blank" >EF17_050/0008496: MSCAfellow@MUNI</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů