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Título
Morphological, ultrastructural and histochemical investigation of epipodial sensory structures of Haliotis tuberculata (Gastropoda: Haliotidae)
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Acta Zoologica
Cita Bibliográfica
Molist, P., Álvarez Nogal, R. & Collado, G.A. (2016). Morphological, ultrastructural and histochemical investigation of epipodial sensory structures of Haliotis tuberculata (Gastropoda: Haliotidae). Acta Zoológica , 97, 67-75
https://doi.org/10.1111/AZO.12106
Editorial
Wiley
Fecha
2016
ISSN
0001-7272
Resumen
[EN] In this study, we describe the microstructure and ultrastructure of the epipodialpapillae and epipodial tentacles of Haliotis tuberculata using light and electronmicroscopy. The epipodial papillae vary morphologically; they are subdividedinto several subpapillae whose surface is covered by small micropapillae. Theepipodial tentacles are large extendable conically elongated structures whose sur-face is differentiated in two regions: the dorsal region with long corrugated folds,and a ventral region composed of three parts, a basal part with the same struc-ture as the dorsal, a middle part with shorter corrugated folds and an apical partwith large micropapillae. Although the thin sections and ultrastructure examina-tion show that the epithelium of both organs is morphologically similar and com-posed of supporting cells, sensory cells and different types of secretory cells,there is a certain specialization in their secretory product. Although the epithe-lium of both structures was positive for acidic glycoconjugates, the tentacle epi-thelium was also positive for neutral sugars. Further specific differences wererevealed by lectin histochemistry. Because papillae and tentacles can be extendedor retracted depending on environmental conditions, they probably have tactileand olfactory functions
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