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Plant hormones in defense response of Brassica napus to Sclerotinia sclerotiorum - Reassessing the role of salicylic acid in the interaction with a necrotroph

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    SYSNO ASEP0433554
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitlePlant hormones in defense response of Brassica napus to Sclerotinia sclerotiorum - Reassessing the role of salicylic acid in the interaction with a necrotroph
    Author(s) Nováková, Miroslava (UEB-Q) RID
    Šašek, Vladimír (UEB-Q) RID
    Dobrev, Petre (UEB-Q) RID, ORCID
    Valentová, O. (CZ)
    Burketová, Lenka (UEB-Q) RID, ORCID
    Source TitlePlant Physiology and Biochemistry. - : Elsevier - ISSN 0981-9428
    Roč. 80, JUL 2014 (2014), s. 308-317
    Number of pages10 s.
    Languageeng - English
    CountryFR - France
    KeywordsBrassica napus ; Chorismate mutase ; Defense signaling pathways
    Subject RIVGF - Plant Pathology, Vermin, Weed, Plant Protection
    R&D ProjectsGA13-26798S GA ČR - Czech Science Foundation (CSF)
    Institutional supportUEB-Q - RVO:61389030
    UT WOS000338004600037
    DOI10.1016/j.plaphy.2014.04.019
    AnnotationAccording to general model, jasmonic acid (JA) and ethylene (ET) signaling pathways are induced in Arabidopsis after an attack of necrotroph, Sclerotinia sclerotiorum (Lib.) de Bary. However, abscisic acid (ABA) and salicylic acid (SA) also seem to play a role. While signaling events in Arabidopsis have been intensively studied recently, information for the natural host Brassica napus is limited. In this study, multiple plant hormone quantification and expression analysis of marker genes of the signaling pathways was used to gain a complete view of the interaction of B. napus with S. sclerotiorum. Strong response of ET biosynthetic gene ACS2 was observed, accompanied by increases of SA and JA levels that correspond to the elevated expression of marker genes PR1 and LOX3. Interestingly, the level of ABA and the expression of its marker gene RD26 were also elevated. Furthermore, induction of the SA-dependent defense decreased disease symptoms. In addition, SA signaling is suggested as a possible target for manipulation by S. sclerotiorum. A gene for putative chorismate mutase SS1G_14320 was identified that is highly expressed during infection but not in vitro. Our results bring the evidence of SA involvement in the interaction of plant with the necrotroph that conflict with the current model.
    WorkplaceInstitute of Experimental Botany
    ContactDavid Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
    Year of Publishing2015