摘要
从海南 13个地区分离获得的 17个 Colletotrichum musae分离菌系经测定 ,无论是菌丝生长还是孢子萌发均以 30℃为适温 ,p H值 6～ 7为最佳条件 ;菌丝生长的最佳碳源是葡萄糖 ,而孢子萌发最佳碳源则是蔗糖 ,5种碳源都可提高孢子萌发率 ;自然光照 ( 12 h光暗交替 )最有利于菌丝生长 ,30min紫外照射可使分生孢子致死。 17个菌系菌落形态特征、菌丝体生长速率和致病力均有很大差异 ,其中以屯昌 3、文昌 4、琼山 1和万宁 1等菌系的菌丝生长快 ,而临高 1、昌江 3和昌江 6则最为缓慢。
All Colletotrichum musae (Berk. & Curt)Arx isolated from 13 regions in Hainan. Seventeen tested isolates on biological characteristic showed 30℃ was the optimum temperature for mycelial growth and spore germination. The optimum pH value was 6-7. The mycelial grew best on media with glucose as C source, and condia germinated best on media with sucrose as C source. Alternate 12 h light and dark was the best for mycelial growth. There were evident difference on the morphologic characters, the growth rate and pathogenicity among these isolates.
出处
《植物病理学报》
CAS
CSCD
北大核心
2000年第4期337-342,共6页
Acta Phytopathologica Sinica
