Mehlhorn H, Sénaud J, Chobotar B, Scholtyseck E
Z Parasitenkd. 1975;45(3):227-36. doi: 10.1007/BF00329375.
The origin and the development of the micronemes and rhoptries was investigated at the ultrastructural level in cyst stages of Sarcocystis tenella. During endodyogeny the micronemes appear in small vesicles distributed at the periphery of two large granular vacuoles in each daughter cell. Later, these vacuoles were divided into numerous vesicular spiral formation-centers, producing micronemes at the apical pole of young merozoites. Rhoptries were observed to originate from desnifications with in the same large vacuoles which gave rise to the micronemes.
在犬肉孢子虫包囊阶段，从超微结构层面研究了微线体和棒状体的起源与发育。在二分裂生殖期间，微线体出现在每个子细胞中两个大颗粒泡周边分布的小泡中。之后，这些泡被分成许多泡状螺旋形成中心，在年轻裂殖子的顶端极产生微线体。观察到棒状体起源于与产生微线体的相同大泡内的致密化过程。
