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本文报道了对江苏、江西苎麻疫病菌的鉴定结果及苎麻疫病的简便诊断方法。上述地区苎麻上分离的37个疫霉菌株被鉴定为3个种:苎麻疫霉(Phytophthora boehmeriae)、恶疫霉(P.cactorum)和Phytophora SP.(种名待定)。苎麻疫霉是江苏苎麻疫病的主要病原菌,恶疫霉是江西宜春地区苎麻疫霉的主要病原菌,Phytophthora SP.是首次在南京苎麻上分离的异宗配合疫霉种。通过保湿和组织透明镜检病组织表面及内部的孢子囊和卵孢子可以快速确诊苎麻疫病。
This paper reports the identification of ramets in Jiangxi and Jiangxi Province and the convenient diagnosis of ramie disease. Thirty-seven Phytophthora strains isolated on ramie were identified as three species: Phytophthora boehmeriae, P. cactorum and Phytophora sp. Phytophthora sp. Was the main pathogen of ramie blight in Jiangsu Province. Phytophthora sp. Was the main pathogen of Phytophthora blight in Yichun, Jiangxi Province. Phytophthora sp. Was the first heterophilous Phytophthora species isolated on Nanjing ramie. The ramie blight can be diagnosed rapidly by moisturizing and microscopically examining the sporocysts and oospores on the surface and inside the tissue.