Cytokinins modulate auxin-induced organogenesis via regulation of the auxin efflux

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00039833" target="_blank" >RIV/00216224:14310/09:00039833 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Cytokinins modulate auxin-induced organogenesis via regulation of the auxin efflux
Original language description
Auxin and cytokinin (CK) are important regulators of the developmental fate of pluripotent plant cells. The molecular mechanism of their interaction in control of plant organogenesis is largely unknown. We show that auxin, but not CK, is able to induce organogenic response in hypocotyl explants. CK modulates auxin-induced organogenesis via regulation of intercellular auxin distribution. The auxin-induced organogenesis is accompanied with endogenous CKs production and tissue-specific activation of CK signalling. CK also reduces auxin efflux from cultured tobacco cells and regulates the expression of auxin efflux carriers from the PIN family in hypocotyl explants and are necessary to maintain intercellular auxin distribution in planta. We propose a model, in which auxin acts as a trigger of the organogenic processes, whose output is modulated by the endogenously produced CKs via regulation of expression of auxin efflux carriers.
Czech name
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Czech description
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Project
<a href="/en/project/LC06034" target="_blank" >LC06034: Regulation of morphogenesis of plant cells and organs</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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