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Cellular patterning and cyto-architectural organization of the skin of electric catfish (Malapterurus electricus, Siluriformes) with a particular emphasis on its ampullary electroreceptor.
El-Mansi, Ahmed A; Rady, Ahmed M; Ibrahim, Esam H; ElBealy, Eman.
Afiliación
  • El-Mansi AA; Biology Dept., Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia. Electronic address: elmansi@mans.edu.eg.
  • Rady AM; Biology Dept., Faculty of Science, King Saud University, Riyadh, Saudi Arabia.
  • Ibrahim EH; Biology Dept., Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia.
  • ElBealy E; Biology Dept., Faculty of Science, King Khalid University, Abha, 61421, Saudi Arabia.
Zoology (Jena) ; 163: 126159, 2024 Mar.
Article en En | MEDLINE | ID: mdl-38471427
ABSTRACT
The functional morphology of the skin of Malapteruridae is presumably evolved to cope with a diversified range of ambient physiological, environmental, and behavioral conditions. Herein, we firstly characterized the microstructures and intriguing patterning of the skin of twelve adult electric catfish (Malapterurus electricus, Malapteruridae) using histological, histochemical, immunofluorescent, and ELISA standard methodology. The skin comprises three sequentially-oriented layers the epidermis, dermis, and hypodermis with a significantly increased thickness of the former. The epidermis contains four types of cells the surface epithelial cells, mucous cells, granular cells, and club cells. We defined distinctive ampullary electroreceptors in the outer epidermis that possess flask-shaped sensory crypt containing electroreceptor cells together with vertical collagen rods. Dermis and hypodermis are composed of connective tissue; however, the former is much more coarse and dense with comparable reactivity for Masson-Goldner trichrome (MT). Placing our data in the context of the limited body of previous work, we showed subtle changes in the expression of mucin subunits together with cytoskeletal fractions of collagens, myosin, F-actin, keratins, and tubulins. Taken as a whole, our results convincingly showed that the skin of M. electricus shares some structural similarities to other Siluriformes, however, it has some functional modifications that are implicated in protection, defense, and foraging behavior.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bagres Límite: Animals Idioma: En Revista: Zoology (Jena) Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bagres Límite: Animals Idioma: En Revista: Zoology (Jena) Asunto de la revista: BIOLOGIA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania