A transmission electron microscopical study of the tegument of Maritrema feliui (Digenea: Microphallidae)

• Autorzy: Swiderski Z. , Montoliu I. , Feliu C. , Gibson D. I. , Miquel J.
• Języki publikacji: EN

Abstrakty

EN

The tegument of the microphallid digenean Maritrema feliui, examined by means of TEM, is described as a syncytial epithelium organised into two layers. The outer layer is an external anucleate, cytoplasmic region connected to a second region composed of nucleate perikarya (cytons) deeply embedded in the surrounding cortical parenchyma. The surface layer of the tegument is covered by a plasma membrane with many deep invaginations, which are apparently pinocytotic. This layer also bears numerous large, electron-dense spines of two types, which are intracellular and attached to the basal plasma membrane. Its cytoplasm is rich in free ribosomes, contains numerous mitochondria, disc-shaped granules frequently arranged in a rouleau, and several large, moderately electron-dense, membranous bodies. The subtegumentary perikarya and their nuclei, which are both flattened, are described in detail, as are their connections with the surface tegument. These perikarya appear to be the source of the disc-shaped granules and some of the other inclusions present in the surface layer. The main characteristics of the tegumental structure of M. feliui are commented upon in relation to the findings of previous publications and their suggested functions.

Słowa kluczowe

EN

Microphallidae; Digenea; Maritrema feliui; trematode; tegument; plasma membrane; ultrastructure; perikaryon; Golgi complex; endoplasmic reticulum; transmission electron microscopy

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 2013
• Tom: 58
• Numer: 4
• Opis fizyczny: p.478-485,fig.,ref.

Twórcy

autor

Swiderski Z.

• W. Stefanski Institute of Parasitology, Polish Academy of Sciences, 51/55 Twarda Street, 00-818 Warsaw, Poland

autor

Montoliu I.

• Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitaries, Facultat de Farmacia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain

autor

Feliu C.

• Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitaries, Facultat de Farmacia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain

autor

Gibson D. I.

• Department of Life Sciences, Natural History Museum, London SW7 5BD, U.K.

autor

Miquel J.

• Laboratori de Parasitologia, Departament de Microbiologia i Parasitologia Sanitaries, Facultat de Farmacia, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain

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