Cytokinins control cell differentiation via negative regulation of secondary cell wall master regulators NST1 and NST3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F15%3A00080990" target="_blank" >RIV/00216224:14740/15:00080990 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Cytokinins control cell differentiation via negative regulation of secondary cell wall master regulators NST1 and NST3

Popis výsledku v původním jazyce

Control over the equilibrium between cell division and cell differentiation represents the core developmental regulation across all kingdoms Plant hormones cytokinins were shown to regulate both the process of cell differentiation and cell proliferation.However, the molecular mechanism of cytokinin-controlled cell differentiation is far from being understood. Here we present the role of cytokinins in the control of differentiation program of secondary cell wall-containing cells. We found that impairedcytokinin signaling disturbs apical/basal developmental gradient in the inflorescence stem of Arabidopsis. Attenuated cytokinin signaling results in formation of vascular bundles with changed protoxylem/metaxylem ratio and formation of tracheary elementswith reduced diameter and dramatically reduced water conductance. Increased lignification in both tracheary elements and xylem fibers suggested early cell differentiation.

Název v anglickém jazyce

Cytokinins control cell differentiation via negative regulation of secondary cell wall master regulators NST1 and NST3

Popis výsledku anglicky

Control over the equilibrium between cell division and cell differentiation represents the core developmental regulation across all kingdoms Plant hormones cytokinins were shown to regulate both the process of cell differentiation and cell proliferation.However, the molecular mechanism of cytokinin-controlled cell differentiation is far from being understood. Here we present the role of cytokinins in the control of differentiation program of secondary cell wall-containing cells. We found that impairedcytokinin signaling disturbs apical/basal developmental gradient in the inflorescence stem of Arabidopsis. Attenuated cytokinin signaling results in formation of vascular bundles with changed protoxylem/metaxylem ratio and formation of tracheary elementswith reduced diameter and dramatically reduced water conductance. Increased lignification in both tracheary elements and xylem fibers suggested early cell differentiation.

Druh

O - Ostatní výsledky

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-25280S" target="_blank" >GA13-25280S: Elucidating molecular mechanisms of cytokinins-ethylene crosstalk in the plant development</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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