Journalartikel

Jahr der Veröffentlichung: 1995

Seiten: 1029-1035

Zeitschrift: Comptes rendus de l'Académie des Sciences. Série 3, Sciences de la vie = Life sciences

Bandnummer: 318

Heftnummer: 10

ISSN: 0764-4469

Verlag: Elsevier

Abstract: 
In order to decrease the rare of postembryonic development of electroreceptor organs, excisions of epidermis and deafferentations were carried our in the gymnotid fish Eigenmannia virecens. Twenty-five days later, the epidermis showed electroreceptor organs without innervation. Some of these at the beginning of their development consisted of masses of identical cells, whereas others showed presumed sensory cells whose cytoplasm contained rudimentary synaptic structures. The epidermis also showed differentiated tuberous organs with a low number of sensory cells. In all these organs, radioactive thymidine was fixed in the nuclei of the platform accessory cells. Thirty-five-40 days after surgery, tuberous organs were identical to the functional organs, and thymidine was detected in the nuclei of the cavity accessory cells. These results show that the gymnotid electroreceptor organs can develop before any nervous contact occurs, and suggest that they might originate from epidermal cells.

Harvard-Zitierstil: BENSOUILAH, M., VERONRAVAILLE, M., BLAHSER, S. and DENIZOT, J. (1995) ON THE POSTEMBRYONIC DIFFERENTIATION OF A CUTANEOUS ELECTRORECEPTOR ORGAN, Comptes rendus de l'Académie des Sciences. Série 3, Sciences de la vie = Life sciences, 318(10), pp. 1029-1035

APA-Zitierstil: BENSOUILAH, M., VERONRAVAILLE, M., BLAHSER, S., & DENIZOT, J. (1995). ON THE POSTEMBRYONIC DIFFERENTIATION OF A CUTANEOUS ELECTRORECEPTOR ORGAN. Comptes rendus de l'Académie des Sciences. Série 3, Sciences de la vie = Life sciences. 318(10), 1029-1035.