Number of the records: 1  

The role of electrical and jasmonate signalling in the recognition of captured prey in the carnivorous sundew plant Drosera capensis

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    SYSNO ASEP0477122
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleThe role of electrical and jasmonate signalling in the recognition of captured prey in the carnivorous sundew plant Drosera capensis
    Author(s) Krausko, M. (SK)
    Perůtka, M. (CZ)
    Šebela, M. (CZ)
    Šamajová, O. (CZ)
    Šamaj, J. (CZ)
    Novák, Ondřej (UEB-Q) RID, ORCID, SAI
    Pavlovič, A. (SK)
    Number of authors7
    Source TitleNew Phytologist - ISSN 0028-646X
    Roč. 213, č. 4 (2017), s. 1818-1835
    Number of pages18 s.
    Languageeng - English
    CountryUS - United States
    Keywordsaction potential ; carnivorous plant ; Drosera ; electrical signal ; enzymes ; jasmonates ; long-distance signalling ; sundew
    Subject RIVEB - Genetics ; Molecular Biology
    OECD categoryPlant sciences, botany
    R&D ProjectsLO1204 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Institutional supportUEB-Q - RVO:61389030
    UT WOS000397238600027
    EID SCOPUS85006716570
    AnnotationThe carnivorous sundew plant (Drosera capensis) captures prey using sticky tentacles. We investigated the tentacle and trap reactions in response to the electrical and jasmonate signalling evoked by different stimuli to reveal how carnivorous sundews recognize digestible captured prey in their traps. We measured the electrical signals, phytohormone concentration, enzyme activities and Chla fluorescence in response to mechanical stimulation, wounding or insect feeding in local and systemic traps. Seven new proteins in the digestive fluid were identified using mass spectrometry. Mechanical stimuli and live prey induced a fast, localized tentacle-bending reaction and enzyme secretion at the place of application. By contrast, repeated wounding induced a nonlocalized convulsive tentacle movement and enzyme secretion in local but also in distant systemic traps. These differences can be explained in terms of the electrical signal propagation and jasmonate accumulation, which also had a significant impact on the photosynthesis in the traps. The electrical signals generated in response to wounding could partially mimic a mechanical stimulation of struggling prey and might trigger a false alarm, confirming that the botanical carnivory and plant defence mechanisms are related. To trigger the full enzyme activity, the traps must detect chemical stimuli from the captured prey.
    WorkplaceInstitute of Experimental Botany
    ContactDavid Klier,, Tel.: 220 390 469
    Year of Publishing2018
Number of the records: 1  

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