Počet záznamů: 1
Hormonal control of the shoot stem-cell niche
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SYSNO ASEP 0349183 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hormonal control of the shoot stem-cell niche Tvůrce(i) Zhao, Z. (DE)
Andersen, S.U. (DE)
Ljung, K. (SE)
Doležal, Karel (UEB-Q) RID, ORCID
Miotk, A. (DE)
Schultheiss, S.J. (DE)
Lohmann, J.U. (DE)Zdroj.dok. Nature. - : Palgrave Macmillan - ISSN 0028-0836
Roč. 465, č. 7301 (2010), s. 1089-1093Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova cytokinin ; auxin ; ARR7 ; ARR15 Vědní obor RIV CE - Biochemie CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000279056900055 DOI 10.1038/nature09126 Anotace The classic phytohormones cytokinin and auxin play essential roles in the maintenance of stem-cell systems embedded in shoot and root meristems, and exhibit complex functional interactions(1-4). Here we show that the activity of both hormones directly converges on the promoters of two A-type ARABIDOPSIS RESPONSE REGULATOR (ARR) genes, ARR7 and ARR15, which are negative regulators of cytokinin signalling(5) and have important meristematic functions(3). Whereas ARR7 and ARR15 expression in the shoot apical meristem (SAM) is induced by cytokinin, auxin has a negative effect, which is, at least in part, mediated by the AUXIN RESPONSE FACTOR5/MONOPTEROS (MP) transcription factor(6). Our results provide a mechanistic framework for hormonal control of the apical stem-cell niche and demonstrate how root and shoot stem-cell systems differ in their response to phytohormones. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2011
Počet záznamů: 1