双斑蟋若虫后足的再生观察

研究蟋蟀若虫是否具有再生的能力,在实验室内对直翅目蟋蟀科的双斑蟋Gryllus bimaculata de Geer若虫后足的再生情况进行初步观察。结果表明:双斑蟋若虫的后足确实具有再生的能力,且再生足的伸长生长与正常足一样,均出现于虫体蜕皮时。再生的过程主要分为3个阶段:突起期、“肢芽”期、短小足期。实验结果还表明:再生能力与断肢发生的时间及断肢部位有关;断肢部位离肢体越远,再生能力越强;断肢发生的时间越早,再生能力越强。

The hind leg regeneration in the nymphs of Gryllus bimaculatus

In order to explore the regeneration ability of hind leg of nymphs of Gryllus bimaculata de Geer, its regeneration process in our laboratory was observed preliminarily. The result showed that the hind legs of nymphs of G. bimaculatus have the ability of regeneration assuredly. Moreover, elongating growth of the regenerated legs only occurred in the process of molting, as same as normal legs. The process of regeneration consists of three phases, emergence phase, "limb bud" phase, and valgate phase. The regeneration ability was closely related with time and position of amputation; the farther amputation from body center, the stronger ability of regeneration; the earlier amputation, the stronger ability of regeneration.