In the spinal cord of Perca fluviatilis the Rohon-Beard cells differentiate early during the embryonal life but after the hatching gradually degenerate, therefore they are transient neurons. In new-born fishes 25 large neuroblasts are present in dorso-medial position and differentiate as supramedullary neurons in the adult Perea. These data indicate that the supramedullary neurons are not persistent Rohon-Beard cells.
Referenze Bibliografiche
[1] BENEDETTI I. e MARINI M., «Rend. Acc. Naz. Lincei», ser. VIII, 54 (1973).
[2] BENEDETTI I. e MARINI M., «Rend. Acc. Naz. Lincei», ser. VIII, 52, 101-105 (1972).
[3] MARINI M. e BENEDETTI L., «Rend. Acc. Naz. Lincei», ser. VIII, 52, 579-582 (1972).
[4] KOLSTER R., «Anat. Anz.», 14, 250-253 (1898).
[5] FRITSCH G., «Sitz.-ber. K. Preus. Akad. Wiss.» (Berlin), 2, 1145-1151 (1884).
[6] FRITSCH G., «Arch. mikr. Anat.», 27, 13-31 (1886).
[7] TAGLIANI G., «Monit. Zool. Ital.», 5, 248-258 (1894); 8, 264-275 (1897).
[8] TAGLIANI G., «Boll. Soc. Nat.» (Napoli), 9, 60-69 (1895).
[9] TAGLIANI G., «Anat. Anz.», 15, 234-237 (1898).
[10] DAHLGREN U., «Anat. Anz.», 15, 281-293 (1897).
[11] DAHLGREN U., «J. Comp. Neurol.», 8, 177-179 (1898).
[12] SARGENT P. E., «J. Comp. Neurol.», 8, 183-194 (1898).
[13] SARGENT P. E., «Anat. Anz.», 15, 212-225 (1898).
[14] Ved.: ARIENS KAPPERS C. U., HÜBER G. C. e CROSBY E. C., The comparative anatomy of the nervous system of Vertebrates, including Man. (Hafner Pu. Co., New York, 1960).
[15] Ved.: NIEUWENHUYS R., in: Progress in brain research, 11, 1-57 (1964) (Elsevier Pu. Co., Amsterdam, 1964).
Con il contributo del Ministero per i Beni e le Attività Culturali