Počet záznamů: 1
Arabidopsis WAT1 is a vacuolar auxin transport facilitator required for auxin homoeostasis
- 1.
SYSNO ASEP 0421943 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Arabidopsis WAT1 is a vacuolar auxin transport facilitator required for auxin homoeostasis Tvůrce(i) Ranocha, P. (FR)
Dima, O. (BE)
Nagy, R. (CH)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Goffner, D. (FR)Celkový počet autorů 18 Zdroj.dok. Nature Communications. - : Nature Publishing Group
Roč. 4, č. 2013 (2013)Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova BINDING PROTEIN-1 ; POLAR TRANSPORT ; PLANTS Vědní obor RIV EF - Botanika CEP LK21306 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000326472200014 DOI 10.1038/ncomms3625 Anotace The plant hormone auxin (indole-3-acetic acid, IAA) has a crucial role in plant development. Its spatiotemporal distribution is controlled by a combination of biosynthetic, metabolic and transport mechanisms. Four families of auxin transporters have been identified that mediate transport across the plasma or endoplasmic reticulum membrane. Here we report the discovery and the functional characterization of the first vacuolar auxin transporter. We demonstrate that WALLS ARE THIN1 (WAT1), a plant-specific protein that dictates secondary cell wall thickness of wood fibres, facilitates auxin export from isolated Arabidopsis vacuoles in yeast and in Xenopus oocytes. We unambiguously identify IAA and related metabolites in isolated Arabidopsis vacuoles, suggesting a key role for the vacuole in intracellular auxin homoeostasis. Moreover, local auxin application onto wat1 mutant stems restores fibre cell wall thickness. Our study provides new insight into the complexity of auxin transport in plants and a means to dissect auxin function during fibre differentiation. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2014
Počet záznamů: 1