杧果大茎点菌Macrophoma mangiferae Hingoroai et Sharma是引起广西杧果象牙品种果腐病的病原菌之一。对杧果大茎点菌和罹病果肉组织,运用病理组织解剖方法,观察到杧果大茎点菌M.mangiferae的子实体在果肉组织中生长发育过程,需经过营养菌丝集结、菌丝球中心组织细胞分化、雏形分生孢子器形成、分生孢子器产生和释放分生孢子等4个阶段。此项研究结果揭示了该类病原菌子实体细胞学发育特点及致病机理。 Macrophoma mangiferae Hingoroai et Sharma is one of the pathogen causing fruit rot of ivory variety in Guangxi. On the large-point bacteria and infected diseased fruit flesh tissues, using pathological anatomy, the fruiting body of M.mangiferae was observed in the growth and development of pulp tissue, Central tissue cell differentiation, embryo conidia formation, conidia generation and conidia release and other four stages. The results of this study revealed the cytological development characteristics and pathogenesis of this kind of pathogen.