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 ASEP 0477122 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The 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 autorů 7 Zdroj.dok. New Phytologist - ISSN 0028-646X
Roč. 213, č. 4 (2017), s. 1818-1835Poč.str. 18 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova action potential ; carnivorous plant ; Drosera ; electrical signal ; enzymes ; jasmonates ; long-distance signalling ; sundew Vědní obor RIV EB - Genetika a molekulární biologie Obor OECD Plant sciences, botany CEP LO1204 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000397238600027 EID SCOPUS 85006716570 DOI 10.1111/nph.14352 Anotace The 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. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2018
Počet záznamů: 1