Occurrence of Phytophthora citrophthora on Syringa vulgaris in Poland

Acta Mycologica

Grażyna Szkuta¹  Leszek B. Orlikowski² 

[1] Main Instpectorate of State Plant Health and Seed Instpection Service in Toruń;Research Institute of Pomology and Floriculture in Skierniewice;

关键词: lilac;    dieback;    blight;    Phytophthora;    colonisation;    host plants;   

DOI  :  10.5586/am.2005.015

来源: DOAJ

【 摘 要 】

Phytophora citrophora was isolated from dieback shoots, base of diseascd stems and top parts of lilac plants during 3 vegetation periods. The species was detected from about 75% of analysed plant parts. On V8 juice agar and potato-dextrose agar the quickest growth of the species was observed at 25·30°C but development did not occur at 5° and 35°C. Zoosporangia were mostly papillate from spherica1 to ellipsoidal with average dimensions 45.6 x 31.5 μm. P. citrophthora from 5 host plants caused necrosis development of leaves and stem pars 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.

【 授权许可】

Unknown