Mechanically-injured wheat plants release greater amounts of the secondary metabolites linalool and linalool oxide

• Autorzy: Piesik D , Weaver D.K. , Peck G.E. , Morrill W.L.

Warianty tytułu

PL

Wplyw mechanicznego uszkadzania pszenicy na zwiekszona produkcje wtornych metabolitow linalolu i tlenku linalolu

• Języki publikacji: EN

Abstrakty

EN

Plants under attack of herbivores can emit increased amounts of volatile compounds from their leaves. Similarly, mechanically-injured plants can emit volatile chemicals that differ both quantitatively and qualitatively from undamaged plants. In this experiment, mechanical injury increased the release of the secondary metabolites linalool (3,7-dimethyl-1,6-octadien-3-ol) and linalool oxide (5-ethenyltetrahydro-2-furanmethanol) by wheat plants. The amounts released varied significantly with injury type and the period of time after injury. The time interval for the volatile collection within the photophase also influenced the amount collected for each day. The increased emission of these compounds, as a result of injury, may be explained as a defense mechanism against wounding. The role of these plant volatiles can be further investigated in the context of plant response to mechanical injury, within the broader context of all types of injury

PL

Rośliny pod wpływem ataku roślinożerców mogą emitować większe ilości lotnych związków ze swoich liści. Podobnie, mechanicznie uszkadzane rośliny emitują lotne związki różniące się ilościowo i jakościowo od roślin nie uszkadzanych. W tym eksperymencie mechaniczne uszkadzanie pszenicy spowodowało wzrost wydzielania wtórnych metabolitów, takich jak linalol (3,7-dimethyl-1,6- -octadien-3-ol) i tlenek linalolu (5-ethenyltetrahydro-2 furanmethanol). Uwolnione związki różniły się istotnie w odniesieniu do typów uszkodzeń i czasu jaki upłynął po uszkodzeniu roślin. Także czas pomiędzy kolejnymi kolekcjonowaniami istotnie wpływał na ilości uwalnianych lotnych związków. Wzrost emisji tych związków, jako rezultat uszkodzeń, może być tłumaczony jako mechanizm obronny przeciwko uszkadzaniu. Rola tychże związków powinna być dalej badana w kontekście reakcji roślin na rożne typy uszkodzeń.

Słowa kluczowe

EN

wheat plant; Triticum aestivum; secondary metabolite; linalool; linalool oxide; mechanical injury; odour; volatile compound

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2006
• Tom: 46
• Numer: 1
• Opis fizyczny: p.29-39,ref.

Twórcy

autor

Piesik D

• University of Technology and Agriculture, Kordeckiego 20, 85-255 Bydgoszcz, Poland

autor

Weaver D.K.

autor

Peck G.E.

autor

Morrill W.L.

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