Taste for protein: Chemical signal from prey stimulates enzyme secretion through jasmonate signalling in the carnivorous plant Venus flytrap
Jazyk angličtina Země Francie Médium print-electronic
Typ dokumentu časopisecké články
PubMed
31734521
DOI
10.1016/j.plaphy.2019.11.013
PII: S0981-9428(19)30470-X
Knihovny.cz E-zdroje
- Klíčová slova
- Action potential, Carnivorous plant, Chitinase, Digestive enzyme, Jasmonic acid, Protease, Venus flytrap,
- MeSH
- cyklopentany MeSH
- Droseraceae * MeSH
- oxylipiny MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- cyklopentany MeSH
- jasmonic acid MeSH Prohlížeč
- oxylipiny MeSH
Hunting cycle of the carnivorous plant Venus flytrap (Dionaea muscipula Ellis) is comprised of mechanism for rapid trap closure followed by slow hermetical sealing and activation of gene expression responsible for digestion of prey and nutrient uptake. In the present study, we focus on the late phase of Venus's flytrap hunting cycle when mechanical stimulation of the prey ceases and is replaced by chemical cues. We used two nitrogen-rich compounds (chitin and protein) in addition to mechanostimulation to investigate the electrical and jasmonate signalling responsible for induction of enzyme activities. Chemical stimulation by BSA protein and chitin did not induce any additional spontaneous action potentials (APs). However, chemical stimulation by protein induced the highest levels of jasmonic acid (JA) and its isoleucine conjugate (JA-Ile) as well as the expression of studied gene encoding a cysteine protease (dionain). Although chitin is probably the first chemical agent which is in direct contact with digestive glands, presence of protein in the secured trap mimics the presence of insect prey best.
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