Počet záznamů: 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
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevThe role of electrical and jasmonate signalling in the recognition of captured prey in the carnivorous sundew plant Drosera capensis
    Tvůrce(i) 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)
    Celkový počet autorů7
    Zdroj.dok.New Phytologist - ISSN 0028-646X
    Roč. 213, č. 4 (2017), s. 1818-1835
    Poč.str.18 s.
    Jazyk dok.eng - angličtina
    Země vyd.US - Spojené státy americké
    Klíč. slovaaction potential ; carnivorous plant ; Drosera ; electrical signal ; enzymes ; jasmonates ; long-distance signalling ; sundew
    Vědní obor RIVEB - Genetika a molekulární biologie
    Obor OECDPlant sciences, botany
    CEPLO1204 GA MŠk - Ministerstvo školství, mládeže a tělovýchovy
    Institucionální podporaUEB-Q - RVO:61389030
    UT WOS000397238600027
    EID SCOPUS85006716570
    DOI10.1111/nph.14352
    AnotaceThe 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.
    PracovištěÚstav experimentální botaniky
    KontaktDavid Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
    Rok sběru2018
Počet záznamů: 1