Cytokinins - regulators of de novo shoot organogenesis.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00133427" target="_blank" >RIV/00216224:14310/23:00133427 - isvavai.cz</a>
Result on the web
<a href="https://csebr.cz/plantmethods2023/" target="_blank" >https://csebr.cz/plantmethods2023/</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Cytokinins - regulators of de novo shoot organogenesis.
Original language description
Plants, unlike animals, possess a unique developmental plasticity, that allows them to adapt to changing environmental conditions. A fundamental aspect of this plasticity is their ability to undergo postembryonic de novo organogenesis. This strategy requires the presence of regulators that mediate specific spatiotemporal changes in developmental programs. The phytohormones cytokinins and auxin have been known as the principal regulators of plant development for a long time. In de novo organogenesis, auxin is the principal morphogen required to induce new organ onset, while cytokinins modulate the type of organogenic response. In in vitro regeneration assays, the presence of auxin alone or high auxin-to-cytokinin concentration ratio in media induces root regeneration from various plant tissues. On the other hand, if the auxin-to-cytokinin ratio is low, shoots are formed. The process of de novo shoot apical meristem initiation is accompanied by strong activation of AHK4-mediated cytokinin signalling and induction of shoot-specific homeodomain regulator WUSCHEL specifically in the regenerating organs. Exogenous but also endogenous cytokinins influence both the initiation of newly formed organs as well as the pace of organ developmental sequence, especially endogenous isopentenyladenine-type cytokinins. We propose an important role of cytokinin biosynthesis and metabolism in the control of de novo induced organ identity.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10600 - Biological sciences
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)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů