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Exogenous strigolactone interacts with abscisic acid-mediated accumulation of anthocyanins in grapevine berries
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SYSNO ASEP 0489459 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Exogenous strigolactone interacts with abscisic acid-mediated accumulation of anthocyanins in grapevine berries Tvůrce(i) Ferrero, M. (IT)
Pagliarani, C. (IT)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Ferrandino, A. (IT)
Cardinale, F. (NL)
Visentin, I. (IT)
Schubert, A. (DE)Celkový počet autorů 7 Zdroj.dok. Journal of Experimental Botany. - : Oxford University Press - ISSN 0022-0957
Roč. 69, č. 9 (2018), s. 2391-2401Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova vitis-vinifera l. ; cabernet-sauvignon ; seed-germination ; drought stress ; nonclimacteric fruit ; lotus-japonicus ; gene-expression ; plant hormones ; analog gr24 ; biosynthesis ; ABA conjugation ; ABA hydroxylases ; ABA transporters ; abscisic acid ; anthocyanin ; grapevine ; gr24 ; ripening ; strigolactones Vědní obor RIV EF - Botanika Obor OECD Plant sciences, botany Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000430727000018 DOI 10.1093/jxb/ery033 Anotace Besides signalling to soil organisms, strigolactones (SLs) control above-and below-ground morphology, in particular shoot branching. Furthermore, SLs interact with stress responses, possibly thanks to a crosstalk with the abscisic acid (ABA) signal. In grapevine (Vitis vinifera L.), ABA drives the accumulation of anthocyanins over the ripening season. In this study, we investigated the effects of treatment with a synthetic strigolactone analogue, GR24, on anthocyanin accumulation in grape berries, in the presence or absence of exogenous ABA treatment. Experiments were performed both on severed, incubated berries, and on berries attached to the vine. Furthermore, we analysed the corresponding transcript concentrations of genes involved in anthocyanin biosynthesis, and in ABA biosynthesis, metabolism, and membrane transport. During the experiment time courses, berries showed the expected increase in soluble sugars and anthocyanins. GR24 treatment had no or little effect on anthocyanin accumulation, or on gene expression levels. Exogenous ABA treatment activated soluble sugar and anthocyanin accumulation, and enhanced expression of anthocyanin and ABA biosynthetic genes, and that of genes involved in ABA hydroxylation and membrane transport. Co-treatment of GR24 with ABA delayed anthocyanin accumulation, decreased expression of anthocyanin biosynthetic genes, and negatively affected ABA concentration. GR24 also enhanced the ABA-induced activation of ABA hydroxylase genes, while it down-regulated the ABA-induced activation of ABA transport genes. Our results show that GR24 affects the ABA-induced activation of anthocyanin biosynthesis in this non-climacteric fruit. We discuss possible mechanisms underlying this effect, and the potential role of SLs in ripening of non-ABA-treated berries. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2019
Počet záznamů: 1