Wplyw antybiotykow na wystepowanie objawow karlowatosci magnolii

• Autorzy: Kaminska M , Sliwa H.

Warianty tytułu

EN

The influence of antibiotics on the appearance of magnolia stunting symptoms

• Języki publikacji: PL

Abstrakty

EN

Treatment of diseased magnolia plants with oxytetracycline, baytril and tylan did not reduce the number of symptomatic plants. However, the sprays with antibiotics promoted the shoot growth, development of symptomless leaves and flower buds. The most efficient were baytril at the concentration of 500 ppm, tylan 200 ppm and oxytetracycline at the concentration of 500 or 1000 ppm. Lower concentrations of baytril and oxytetracycline were not so much effective; higher 'concentration of tylan decreased the magnolia shoot growth. The effect of antibiotics lasted one season. Ali the antibiotic treated and control plants, randomly sted by PCR-RFLP, showed the presence of A Y (16SrI) phytoplasma and some f them were affected with phytoplasma related with apple proliferation hytoplasma group (16SrX). The obtained results indicated that l) magnolia is a natural host plant of phytoplasmas belonging to aster yellows phytoplasma group d apple proliferation group and 2) they support the suggestion that phytoplasmas the casual agents of magnolia stunting disease.

PL

Traktowanie chorych magnolii roztworami oksytetracykliny, baytrilu i tylanu miało dodatni wpływ na wzrost pędów, liczbę liści bez symptomów oraz zawiązywanie pąków kwiatowych. Największy wpływ miały baytril w stężeniu 500 lub 1000 ppm, tylan 200 ppm i oksytetracyklina 500 lub 1000 ppm. Niższe stężenia baytrilu i oksytetracykliny nie były tak efektywne, zaś wyższa dawka tylanu hamowała rozwój pędów. Pozytywny wpływ antybiotyków obserwowano tylko w pierwszym roku ich stosowania. Wszystkie losowo wybrane i testowane przy pomocy analizy PCR-RFLP magnolie, zarówno traktowane antybiotykami jak i kontrolne, wykazały obecność fitoplazm z grupy żółtaczki astra (16SrI). Niektóre krzewy były porażone także fitoplazmą z grupy proliferacji jabłoni (16SrX). Wyniki niniejszych badań wykazały więc, że 1). magnolia jest naturalnym gospodarzem fitoplazm z grup żółtaczki astra i proliferacji jabłoni, oraz 2). potwierdzają przypuszczenie, że fitoplazmy są przyczyną choroby karłowatości magnolii.

Słowa kluczowe

PL

oksytetracyklina; baytril; tylan; magnolia; wplyw nastepczy; rosliny ozdobne; choroby roslin; objawy chorobowe; wystepowanie; czynniki chorobotworcze; fitoplazmy; antybiotyki; karlowatosc

EN

oxytetracycline; magnolia; residual effect; antibiotic; ornamental plant; pathogenic symptom; occurrence; pathogenic factor; phytoplasma; dwarfism

• Wydawca: -
• Czasopismo: Acta Agrobotanica
• Rocznik: 2002
• Tom: 55
• Numer: 1
• Strony: 107-117
• Opis fizyczny: s.107-117,rys.,fot.,bibliogr.

Twórcy

autor

Kaminska M

• Instytut Sadownictwa i Kwiaciarstwa, ul.Pomologiczna 18, 100 Skierniewice

autor

Sliwa H.

Bibliografia

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