Morphology and ultrastructure of the esophagus during the ontogeny of the spider crab Maja brachydactyla (Decapoda, Brachyura, Majidae)
Visualitza/Obre
Data de publicació
2018-03-01ISSN
0362-2525
Resum
The esophagus of the eucrustaceans is known as a short tube that connects the mouth with the stomach but has generally received little attention by the carcinologists, especially during the larval stages. By this reason, the present study is focused on the morphology and ultrastructure of the esophagus in the brachyuran Maja brachydactyla during the larval development and adult stage. The esophagus shows internally four longitudinal folds. The simple columnar epithelium is covered by a thick cuticle. The epithelial cells of the adults are intensively interdigitated and show abundant apical mitochondria and bundles of filamentous structures. The cuticle surface has microspines and mutually exclusive pores. Three muscle layers surrounded by the connective tissue are reported: circular muscles forming a broad continuous band, longitudinal muscle bundles adjacent to the circular muscles, and dilator muscles crossing the connective tissue vertically toward the epithelium. The connective tissue has rosette glands. The esophagus of the larvae have epithelial cells with big vesicles but poorly developed interdigitations and filamentous structures, the cuticle is formed by a procuticle without differentiated exocuticle and endocuticle, the connective layer is thin and the rosette glands are absent. The observed features can be explained by his role in the swallowing of the food.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
English
Matèries (CDU)
639 - Caça. Pesca. Piscicultura
Pàgines
38
Publicat per
Wiley
Publicat a
Journal of Morphology
Citació
Castejón, Diego, Guiomar Rotllant, Enric Ribes, Mercè Durfort, and Guillermo Guerao. 2018. "Morphology And Ultrastructure Of The Esophagus During The Ontogeny Of The Spider Crab Maja Brachydactyla (Decapoda, Brachyura, Majidae)". Journal Of Morphology 279 (6): 710-723. Wiley. doi:10.1002/jmor.20805.
Número de l'acord de la subvenció
INIA/Programa Nacional de Proyectos de Investigación Fundamental/RTA2011‐00004‐00‐00/ES/Optimización del cultivo larvario de Maja brachydactyla: parámetros ambientales y nutrición/
Programa
Aqüicultura
Aquest element apareix en la col·lecció o col·leccions següent(s)
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