Effect of Y-organ removal on limb regeneration and molting in the terrestrial crab, Sesarma haematocheir.
The effect of Y-organ removal on limb regeneration and molting was investigated in the crab, Sesarma haematocheir. Basal growth of regenerating limb bud was achieved independently of the Y-organs. However, bilateral removal of the Y-organ inhibited premolt growth and molting. It was also found that removal of the Y-organs from crabs at stage D2 inhibited further premolt growth of regenerating limb bud and molting. Ecdysterone injections in Y-organless crabs induced premolt growth of regenerating limb bud and gastrolith formation, but were insufficient to induce molting.
D000818:Animals; D003386:Brachyura / Q000033:anatomy & histology* / Q000502:physiology; D004441:Ecdysterone / Q000494:pharmacology; D004702:Endocrine Glands / Q000502:physiology; D005121:Extremities / Q000502:physiology; D012038:Regeneration / Q000187:drug effects
D004441:Ecdysterone