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疫霉属(Phytophthora spp)真菌是一属重要的植物病原菌,可造成蔬菜、园林苗木及其他各种植物的烂根、茎腐、落叶、萎蔫.上海郊区甜椒、番茄等作物发现有它的危害(见表).上海郊区蔬菜疫霉属病菌的种类及其寄主病原菌寄主辣椒疫霉(P.capsici) 甜椒(Capsicum annum)寄生疫霉(P.infestans) 番茄(Lycopvrsicon esculen tum)黄瓜疫霉(P.nelomis) 黄瓜(Cucunis sativus)韭葱疫霉(P.porri) 洋葱(Allium cepa)豇豆疫霉(P.vignae) 豇豆(Vigna sesquiped alis)为了在实验室条件下对病原菌进行形态特征及
Phytophthora spp is an important phytopathogenic fungus that causes rotten roots, stem rot, deciduous leaves and wilting of vegetables, garden seedlings and other various plants. It has been found in crops such as bell peppers and tomatoes in Shanghai suburbs Hazard (See Table.) Phytophthora capsici and its host pathogen host in Shanghai suburbs P.capsici Capsicum annum Psinfestans Tomato (Lycopvrsicon esculen tum) Cucumber Epidemic P.nelomis Cucunis sativus P.porri Onionium Allium cepa Vigna sesquiped alis To characterize pathogenic bacteria under laboratory conditions, and