Occurrence of Phytophthora citrophthora on Syringa vulgaris in Poland

Phytophthora citrophthora was isolated from dieback shoots, base of diseased stems and top parts of lilac plants during 3 vegetation periods. The species was detected from about 75 percent of analysed plant parts. On V8 juice agar and potato-dextrose agar the quickest growth of the species was obser...

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Bibliographic Details
Published in:Acta Mycologica 2005-01, Vol.40 (2), p.175-180
Main Authors: Orlikowski, L.B.,Research Institute of Pomology and Floriculture, Skierniewice (Poland), Szkuta, G.,Main Inspectorate of State Plant Health and Seed Inspection Service, Torun (Poland)
Format: Article
Language:English
Subjects:
Agar
AGENT PATHOGENE
BLIGHT
colonisation
DEPERISSEMENT
DEPERISSEMENT TERMINAL
Dextrose
DIEBACK
ENFERMEDADES DE LAS PLANTAS
Host plants
http://www.fao.org/aos/agrovoc#c_24017
http://www.fao.org/aos/agrovoc#c_27299
http://www.fao.org/aos/agrovoc#c_4788
http://www.fao.org/aos/agrovoc#c_5630
http://www.fao.org/aos/agrovoc#c_5962
http://www.fao.org/aos/agrovoc#c_7577
http://www.fao.org/aos/agrovoc#c_957
Leaves
lilac
MALADIE DES PLANTES
MARCHITEZ DESCENDENTE
METHODE
METHODS
METODOS
ORGANISMOS PATOGENOS
PATHOGENS
Phytophthora
PHYTOPHTHORA CITROPHTHORA
PLANT DISEASES
Plants (organisms)
Potatoes
Shoots
SYRINGA
Syringa vulgaris
TIZON
Zoosporangia
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Summary:Phytophthora citrophthora was isolated from dieback shoots, base of diseased stems and top parts of lilac plants during 3 vegetation periods. The species was detected from about 75 percent of analysed plant parts. On V8 juice agar and potato-dextrose agar the quickest growth of the species was observed at 25-30 deg C but development did not occur at 5 deg C and 35 deg C. Zoosporangia were mostly pappilate from spherical to ellipsoidal with average dimensions 45.6 x 31.5 mcm. P. citrophthora from 5 host plants caused necrosis development of leaves and stem parts of lilac but the quickest spread of disease occurred when plants or their parts were inoculated with isolates from Syringa vulgaris and Pieris japonica. It indicates that the pathogen may be transmissed in nurseries from diseased pieris grown near lilac
ISSN:0001-625X
2353-074X
DOI:10.5586/am.2005.015