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Arabidopsis ABCG14 protein controls the acropetal translocation of root-synthesized cytokinins
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SYSNO ASEP 0429940 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Arabidopsis ABCG14 protein controls the acropetal translocation of root-synthesized cytokinins Tvůrce(i) Zhang, K. (US)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Wei, Z. (US)
Gou, M. (US)
Zhang, X. (US)
Yu, Y. (US)
Yang, H. (US)
Cai, Y. (US)
Strnad, Miroslav (UEB-Q) RID, ORCID
Liu, Ch.-J. (US)Zdroj.dok. Nature Communications. - : Nature Publishing Group
Roč. 5, FEB 2014 (2014)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova EQUILIBRATIVE NUCLEOSIDE TRANSPORTER ; EXPRESSION ANALYSIS ; MERISTEM ACTIVITY Vědní obor RIV EB - Genetika a molekulární biologie CEP LO1204 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000332667600021 DOI 10.1038/ncomms4274 Anotace Cytokinins are a major group of phytohormones regulating plant growth, development and stress responses. However, in contrast to the well-defined polar transport of auxins, the molecular basis of cytokinin transport is poorly understood. Here we show that an ATP-binding cassette transporter in Arabidopsis, AtABCG14, is essential for the acropetal (root to shoot) translocation of the root-synthesized cytokinins. AtABCG14 is expressed primarily in the pericycle and stelar cells of roots. Knocking out AtABCG14 strongly impairs the translocation of trans-zeatin (tZ)-type cytokinins from roots to shoots, thereby affecting the plant's growth and development. AtABCG14 localizes to the plasma membrane of transformed cells. In planta feeding of C-14 or C-13-labelled tZ suggests that it acts as an efflux pump and its presence in the cells directly correlates with the transport of the fed cytokinin. Therefore, AtABCG14 is a transporter likely involved in the long-distance translocation of cytokinins in planta. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2015
Počet záznamů: 1