中华蝈螽与中华螽斯精子超微结构研究(直翅目,螽斯总科)

研究了中华蝈螽Gampsocleis sinensis与中华螽斯Tettigonia chinensis精子的超微结构.两种精子的顶体复合体侧生于核上且包裹了核的一部分,顶体复合体横切面两侧角分离或两侧角与细胞核远离,或仅见其一侧角;中华蝈螽顶体外层在顶体本体两侧角外多呈晕圈状;轴丝为典型的9 9 2型;轴丝两侧的副纤维结构为2副微管;轴丝与线粒体衍生体之间的连接带3条;中华蝈螽有的横切面中两扁平膜池连接在一起;两种精子的中心粒侧体部位具五纵层细胞器.

A COMPARISION OF SPERMATOZOA OF GAMPSOCLEIS SINENSIS AND TETTIGONIA CHINENSIS IN TETTIGONIIDAE (ORTHOPTERA, TETTIGONIOIDEA)

The aim of this study is to find out the differences of ultrastructures of spermatozoa between Gampsocleis sinensis and Tettigonia chinensis. Spermatozoa of the both have been examined by transmission electron microscopy, after double fixation of live material in glutaric-aldehyde and osmic acid. Their acrosomal complexes lies laterally to the flat nucleus and embrance it partially. In some cross-sections, one side of their acrosomal complexes separate from the other, or both side of ones are distant from nucleus, even only one side can be observed. Axoneme is typical 9+9+2 pattern. Two lateral additional fibrous structures are accessory tubules. Cross-sections of mitochondrial derivatives of the former are trianglar, and ones of the latter are ellipse-shaped. There are three connecting bands between mitochondrial derivatives and axoneme. Two flat membranous cisterns closing to mitochondrial derivatives are connected in Gampsocleis sinensis,in some cross-sections. The pentalaminar oganelle in the centriolar adjunct was observed in the two species.