摘要
菌株存放６～２４个月、菌丝损伤、土壤浸出液和绿色木霉（Ｔｒｉｃｈｏｄｅｒｍａｖｉｒｉｄｅ）可诱导槐生疫霉（Ｐｈｙｌｏｐｈｔｈｏｒａｒｏｂｉｎｉｃｏｌａ）、掘氏疫霉（Ｐ．ｄｒｅｃｈｓｌｅｒｉ）和烟草疫霉（Ｐ．ｎｉｃｏｌｉａｎａｅ）部分Ａ＿２交配型菌株产生卵孢子，表现同宗配合特性，而Ａ＿１交配型菌株一般较稳定。樟疫霉（Ｐ．ｃｉｎｎａｍｏｍｉ）仅在土壤浸出液和绿色木霉的刺激下，部分Ａ＿２交配型菌株才形成卵孢子。但是，根据Ｚｅｎｔｍｙｅｒ方法制备的刺槐和雪松的根浸液对上述４种疫霉的卵孢子产生均无诱导作用。
Homothallic oospore formation in some A2 mating types of Phytophthora
robinicola,P.drechsleri and P. nicotianae on black locust was induced by storage of 6～24
months,damage to hyphae,soil extracts and Trichoderma viride,but that in A1 mating types not
generally induced.Furthermore,homothallic oospore production in some A2 mating types of P.
cinnamomi from deodar cedar was stimu-lated only by soil extracts and T. viride. The
experiment showed that the root extracts of hosts prepared byZentmyer's method could not
stimulated the sexual reproduction in four Phytophthora speciesabove-mentioned.
出处
《江苏农学院学报》
CSCD
1994年第2期51-55,共5页
Jiangsu Agricultural Research
