星豹蛛精子的超微结构和精子发生（蜘蛛目：狼蛛科）

报道星豹蛛(Pardosa astrigera)的精子发生过程和成熟精子的超微结构。研究表明,星豹蛛的精子发生有下列特征与其他蜘蛛的研究结果相同:1.染色质浓缩;2.精子的囊内形成;3.顶体泡出现,并有一直穿到核管的顶体丝;5.轴丝为9×2+3型;6.精子成熟时盘曲;7.精子在输精管内进行包装。同时,我们在研究中获得如下新的资料:1.在精原细胞、精子细胞和精巢外层出现上皮细胞;2.中心粒在精子发生的前期为平行排列,到后期变为垂直排列;3.微管环在前期见于核膜外,随后消失;后期见于细胞膜下,最后消失;4.没有线粒体和鞭毛通道,但在胞质中有成群的电子致密圆泡和一膜状结构;5.顶体泡锥形,部分内陷到核内;6.精子包装为闭精武。上述研究结果为今后深入探讨蜘蛛目的系统发生提供了参考资料。

ULTRASTRUCTURE OF SPERMATOZOA AND SPERMATOGENESIS IN WOLF SPIDER PARDOSA ASTRIGERA (ARANEAE: LYCOSIDAE)

Spermatogenesis and ultrastructure of spermatozoon of Pardosa astrigera, a wolf spider, are described. The spermatogenesis of the species shares some characteristics with other spiders. But there are some new data in the species studied, mainly; 1) the occurrence of outer epithelial cell around the testis, spermatogoniunl and spermalocyyle; 2) (luring the spermiogenesis two centrioles lying parallel to each other early but perpendicularly later; 3 ) a microlubular manchette around the nucleus but under the cell membrane later, and no microtubule in mature sperm; 4) no flagellar tunnel and mitochondria but with some dense vacuoles and a large cisterna; 5) acrosomal vacuole cone-shaped and embedded partly in the nucleus; and 6) a sperm packaging pattern of cleistospermia.