毛竹慢性枯萎病病原鉴定

Identification of Pathogen of Moso Bamboo Chronic Wilt

连续3年调查发生慢性枯萎病不同发病程度的毛竹,进行了病原的分离、纯化及鉴定.结果表明,毛竹慢性枯萎病的病原菌是一种粘帚霉(Gliocladium sp.).该菌初生分生孢子梗轮枝状,长96～128 μm,顶端轮生4～5个细瓶形小梗,轮生小梗长约19.2～24μm;次生分生孢子梗青霉状,长64～128 μm,瓶梗大小(4.0～4.8)μm×(6.4～9.6)μm;分生孢子大小(2.4～6.2)μm×(1.9～3.2)μm.

Based on the 3 years observation of Phyllostachys edulis infected by chronic wilt disease, the pathogen was isolated purified and indentified. The result showed that the pathogen of moso bamboo chronic wilt was Gliocladium sp..Its primary conidiophore was Vertreillium-type braches,96~128μm tall,phiaides in whorls of 4~5,secondary,pericillate conidiophores,stipes 64~128μm long,phiaides(6.4~9.6)μm×(4.0~4.8)μm; the dimensions of conidia was (2.4~6.2)μm×(1.9~3.2)μm.