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The Solanum lycopersicum WRKY3 Transcription Factor SlWRKY3 Is Involved in Salt Stress Tolerance in Tomato

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    SYSNO ASEP0477137
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleThe Solanum lycopersicum WRKY3 Transcription Factor SlWRKY3 Is Involved in Salt Stress Tolerance in Tomato
    Author(s) Hichri, I. (BE)
    Muhovski, Y. (BE)
    Žižková, Eva (UEB-Q) ORCID
    Dobrev, Petre (UEB-Q) RID, ORCID
    Gharbi, E. (BE)
    Franco-Zorrilla, J.M. (ES)
    Lopez-Vidriero, I. (ES)
    Solano, R. (ES)
    Clippe, A. (NL)
    Errachid, A. (BE)
    Motyka, Václav (UEB-Q) RID, ORCID
    Lutts, S. (BE)
    Number of authors12
    Article number1343
    Source TitleFrontiers in Plant Science. - : Frontiers Research Foundation - ISSN 1664-462X
    Roč. 8, JUL 31 (2017)
    Number of pages18 s.
    Languageeng - English
    CountryCH - Switzerland
    Keywordsagrobacterium-mediated transformation ; transgenic arabidopsis plants ; dna-binding ; salinity tolerance ; defense responses ; drought tolerance ; abiotic stresses ; water-stress ; genes ; tobacco ; Solanum lycopersicum ; SlWRKY3 ; transcription factor ; salinity tolerance ; plant physiology
    Subject RIVEF - Botanics
    OECD categoryPlant sciences, botany
    R&D ProjectsGA16-14649S GA ČR - Czech Science Foundation (CSF)
    Institutional supportUEB-Q - RVO:61389030
    UT WOS000406846000001
    DOI10.3389/fpls.2017.01343
    AnnotationSalinity threatens productivity of economically important crops such as tomato (Solanum lycopersicum L.). WRKY transcription factors appear, from a growing body of knowledge, as important regulators of abiotic stresses tolerance. Tomato SlWRKY3 is a nuclear protein binding to the consensus CGTTGACC/T W box. SlWRKY3 is preferentially expressed in aged organs, and is rapidly induced by NaCl, KCl, and drought. In addition, SlWRKY3 responds to salicylic acid, and 35S::SlWRKY3 tomatoes showed under salt treatment reduced contents of salicylic acid. In tomato, overexpression of SlWRKY3 impacted multiple aspects of salinity tolerance. Indeed, salinized (125 mM NaCl, 20 days) 35S:: SlWRKY3 tomato plants displayed reduced oxidative stress and proline contents compared to WT. Physiological parameters related to plant growth (shoot and root biomass) and photosynthesis (stomatal conductance and chlorophyll a content) were retained in transgenic plants, together with lower Na+ contents in leaves, and higher accumulation of K+ and Ca2+. Microarray analysis confirmed that many stress-related genes were already up-regulated in transgenic tomatoes under optimal conditions of growth, including genes coding for antioxidant enzymes, ion and water transporters, or plant defense proteins. Together, these results indicate that SlWRKY3 is an important regulator of salinity tolerance in tomato.
    WorkplaceInstitute of Experimental Botany
    ContactDavid Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
    Year of Publishing2018
Number of the records: 1  

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