[Demonstration of the dorsal character of the body wall of the aneurogenic regenerate of Nereis pelagica L. (Annelida, Polychaeta)].
In Nereis pelagica, graft of dorsal or ventral parts of a regenerate edified in the absence of nerve cord (=aneurogenic) on the ventral or dorsal face of a normal host demonstrates a completely dorsal nature of the body wall in these special regenerates. The results indicate that the nerve cord is involved in setting up regenerate dorso-ventral polarity by fixing differentiation of the ventral characters in the area located near by; without it , only the dorsal character is expressed.
D000818:Animals; D005121:Extremities / Q000294:innervation / Q000502:physiology; D009024:Morphogenesis; D011077:Polychaeta / Q000502:physiology*; D012038:Regeneration
Mise en évidence de la nature dorsale de la paroi de corps du régénérat aneurogeénique de Nereis pelagica L. (Annélide Polychète)