Počet záznamů: 1
Inositol Trisphosphate-Induced Ca2+ Signaling Modulates Auxin Transport and PIN Polarity
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SYSNO ASEP 0360769 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Inositol Trisphosphate-Induced Ca2+ Signaling Modulates Auxin Transport and PIN Polarity Tvůrce(i) Zhang, J. (BE)
Vanneste, S. (BE)
Brewer, P. B. (DE)
Michniewicz, M. (DE)
Grones, P. (BE)
Kleine-Vehn, J. (BE)
Löfke, Ch. (DE)
Teichmann, T. (DE)
Bielach, A. (DE)
Cannoot, B. (DE)
Hoyerová, Klára (UEB-Q) RID, ORCID
Chen, X. (CN)
Xue, H. W. (CN)
Benková, E. (BE)
Zažímalová, Eva (UEB-Q) RID, ORCID
Friml, J. (BE)Zdroj.dok. Developmental Cell. - : Cell Press - ISSN 1534-5807
Roč. 20, č. 6 (2011), s. 855-866Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova PIN polarity ; auxin distribution ; Inositol trisphosphate Vědní obor RIV ED - Fyziologie CEZ AV0Z50380511 - UEB-Q (2005-2011) UT WOS 000291763500013 DOI 10.1016/j.devcel.2011.05.013 Anotace Directional auxin flow within tissues depends on polar localization of PIN transporters. To explore regulation of PIN-mediated auxin transport, we screened for suppressors of PIN1 overexpression (supo) and identified an inositol polyphosphate 1-phosphatase mutant (supo1), with elevated inositol trisphosphate (InsP3) and cytosolic Ca2+ levels. Increases in InsP3 or Ca2+ levels also suppressed the PIN1 phenotypes and caused defects in basal PIN localization, auxin transport and auxin mediated development. Reductions in InsP3 levels and Ca2+ signaling antagonized the effects of the supo1 mutation and disrupted preferentially apical PIN localization. InsP3 and Ca2+ are evolutionarily conserved second messengers involved in various cellular functions, particularly stress responses. Our findings implicate them as modifiers of cell polarity and polar auxin transport, and highlight a potential integration point through which Ca2+ signaling-related stimuli could influence auxin-mediated development. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2012
Počet záznamů: 1