双斑蟋的胚胎发育

为了从组织胚胎学角度探究昆虫胚胎发育过程,以双斑蟋Gryllus bimaculatus de Geer的卵为实验材料,通过观察、记录蟋蟀胚胎每一天的形态变化并使用显微摄影方法记录胚胎发育过程,对蟋蟀卵胚胎发育全过程进行系统的观察和研究。根据胚胎形态的发育特点,可将整个胚胎发育过程分为7个阶段:卵裂期、囊胚期、原肠胚、无节幼体期Ⅰ、无节幼体期Ⅱ、无节幼体期Ⅲ、无节幼体期Ⅳ。经历14天,蟋蟀的头部、触角、3对足、尾部、腹部及背部都发育完全,整个胚胎发育随之结束。

Embryonic development of Gryllus bimaculatus

In order to probe into the process of insect embryonic development, we studied the whole embryonic development process of cricket (Gryllus bimaculatus), recording the change on morphology with microphotography everyday. The whole process included 7 phases: egg cleavage, blastula, gastrula, nauplius stage I, nauplius stage II, nauplius stageⅢ, and nauplius stageⅣ. In 14 days, head, antennae, legs, tail, abdomen and dorsal part developed completely, and then the process of embryonic development of G. bimaculatus completed.