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  • Title: Regeneration of fin rays in teleosts: a histochemical, radioautographic, and ultrastructural study.
    Author: Becerra J, Junqueira LC, Bechara IJ, Montes GS.
    Journal: Arch Histol Cytol; 1996 Mar; 59(1):15-35. PubMed ID: 8727360.
    Abstract:
    Regeneration followed partial amputation of the tail fin in three representative species of teleosts. A systematic study, using histochemical methods, radioautography and transmission electron microscopy, disclosed the essentials of the natural history of regeneration of the fin soft-rays. At about 24 hours, epidermal cells had completely covered the cut edge. By the second day an apical epidermal cap was established. Beneath this cap a blastema was formed by about three days after amputation. A collagenous lepidotrichial matrix had begun to develop by 4 days after excision. Actinotrichia were first detected in the regenerates at 5 days. During these processes, the basal lamina of the epidermis played an important morphogenetic role. The cells responsible for the regenerate underwent regressive changes after form and function had been restored.
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