Wplyw syntetycznych induktorow odpornosci nabytej na hamowanie rozwoju szarej plesni u pelargonii i poinsecji

• Autorzy: Floryszak-Wieczorek J , Kulek B.

Warianty tytułu

EN

The effect of synthetic inducers of systemic resistance in inhibiting grey mold development on geranium and poinsettia

• Języki publikacji: PL

Abstrakty

PL

Przetestowano kilka chemicznych aktywatorów odporności pod kątem oceny ich skuteczności w ograniczaniu rozwoju choroby powodowanej przez Botrytis cinerea na liściach pelargonii i poinsecji. Induktory szlaku sygnalnego kwasu salicylowego takie jak: kwas DL-b-aminomasłowy (BABA), kwas g-aminomasłowy (GABA) oraz benzotiadiazol (BTH) w zastosowanych dawkach istotnie hamowały, choć w różnym stopniu, rozwój szarej pleśni u obu gatunków roślin. Wymienione związki nie wykazywały toksycznego bądź ograniczającego wpływu na wzrost i rozwój grzyba w warunkach in vitro. Jedynie ester metylowy kwasu jasmonowego (Me-JA), potencjalny aktywator niezależnego szlaku przekazu sygnału, w zastosowanych ilościach (0.1-1.0 mg‧ml-1) wyraźnie wzmagał rozwój plam chorobowych, prawdopodobnie poprzez stymulację syntezy etylenu w roślinie. Me-JA, dodany do pożywki z B. cinerea wykazywał silne działanie antygrzybowe.

EN

Several chemical activators of resistance were tested to evaluate their efficiency in restricting development caused by Botryotinia fuckeliana (Botrytis cinerea) on geranium and poinsettia leaves. The used signal pathway inducers of salicylic acid, such as DL-a-aminobutyric aeid (BABA), g-aminobutyric acid (GABA) and benzothiadiazole (BTH), at the applied rates markedly inhibited the development of grey mould in the both plant species. The mentioned inducers showed no toxic or restricting effect on the fungus growth and development under in vitro conditions. Only methyl jasmonate (Me-JA), a potential activator of independent signal transduction pathway, at the applied quantities (0.1-1.0 mg‧ml-1), noticeably enhanced the disease spot development probably through stimulation of ethylene synthesis in plant Me-JA added to medium with B. cinerea showed a strong antifungal action, whereas ethylene significantly stimulated mycelium growth in the in vitro cultures.

Słowa kluczowe

PL

wilczomlecz nadobny; odpornosc nabyta; choroby roslin; pelargonia; induktory odpornosci; szara plesn; rozwoj choroby; infekcja grzybowa; Botrytis cinerea; ograniczanie chorob roslin; rosliny ozdobne

EN

poinsettia; systemic acquired resistance; plant disease; pelargonium; resistance inducer; grey mould; disease progression; fungal infection; Botrytis cinerea; plant disease control; ornamental plant

• Wydawca: -
• Czasopismo: Acta Agrobotanica
• Rocznik: 2002
• Tom: 55
• Numer: 1
• Opis fizyczny: s.69-78,rys.,bibliogr.

Twórcy

autor

Floryszak-Wieczorek J

• Akademia Rolnicza, ul.Wolynska 35, 60-637 Poznan

autor

Kulek B.

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