黄瓜疫病菌菌系Ｐｍ７在铵氮培养液、黄瓜籽培养基、修改的Ｃｓ培养液和Ｐｌｉｃｈ＆Ｒｕｄｎｉｋｉ培养液中均能良好生长，其中以铵氮培养液和黄瓜籽培养基产毒能力较强。该菌系在适于生长的４种培养基中生长２０天所产生的培养滤液对１０个黄瓜种质有程度不同的毒性，该菌系培养滤液对辣椒、南瓜、茄子、番茄等蔬菜幼苗也有明显毒性 Cucumber Phytophthora strain Pm7 could grow well in ammonium nitrogen medium, cucumber seed medium, modified Cs medium and Plich & Rudniki medium. Among them, ammonium chloride medium and cucumber seed medium had stronger toxicogenic ability . The strain grew in four kinds of culture medium suitable for growth for 20 days, the culture filtrate on 10 cucumber germplasm have varying degrees of toxicity, the bacterial culture filtrate of pepper, pumpkin, eggplant, tomato and other vegetable seedlings also have Clearly toxic