一、肉孢子虫的简史和分类地位 Miescher氏(1843)首先在鼠体骨骼肌中见到肉孢子虫包囊。肉孢子虫属(Sarcocystis)由Lankester于1882年命名。此后已有70多个肉孢子虫种从多种爬行类、鸟类和哺乳类被命名。但其生活史一直未明,分类地位也不能确定。129年之后,直到Fayer(1972)从一只白头翁鸟的肉孢子虫包囊中,以其缓殖子(bradyzoite)进行组织培养,发现其球虫样的配子和卵囊发育期,同年,Rommel et a1.(1972)在餵食了羊肉中的包囊后的猫粪中发现卵囊,才弄清肉孢子虫有球虫样的生活史。近10年来国外对动物肉孢子虫生 A Brief History and Taxonomic Status of Sarcocystosis Miescher’s (1843) first saw sarcocystosis in mouse skeletal muscle. Sarcocystis was named after Lankester in 1882. Since then more than 70 species of Sarcocyst have been named from a wide range of reptiles, birds and mammals. But its life history has not been clear, the classification status can not be determined. 129 years later, Fayer (1972) found coccidia-like gametes and oocysts in a cyst culture from bradyzoite cysts of a Pulsatilla bird in the same year as Rommel et al. (1972) Oocysts were found in the encapsulated cat litter in lambs to clarify the coccidiosis-like life history of the sarcocystis. Nearly 10 years of animal sarcocystary worm