Ascaris lumbricoides suum: Morphological characterization of apparent cuticular pores by ionic permeability and electron microscopy

The cuticle of the parasitic roundworm Ascaris lumbricoides suum has been found to contain apparent pores, using scanning and transmission electron microscopy. However, X-ray spectral analysis and dot mapping analysis of diffusing divalent cations in the cuticle found these ions to be randomly distr...

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Veröffentlicht in:	Experimental parasitology 1987-06, Vol.63 (3), p.329-336
Hauptverfasser:	Martin, Rex E., Foster, L.Ann, Kester, A.Stephen, Donahue, Manus J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals ASCARIS Ascaris - metabolism Ascaris - ultrastructure Ascaris lumbricoides Ascaris lumbricoides suum Barium - metabolism Biochemistry. Physiology. Immunology. Molecular biology Biological and medical sciences cations CUTICLE CUTICULA CUTICULE Diffusion Electron microscopy Fundamental and applied biological sciences. Psychology Invertebrates Ionic permeability MICROSCOPIA MICROSCOPIE MICROSCOPY Microscopy, Electron Microscopy, Electron, Scanning Nemathelminthia. Plathelmintha Nematode, parasitic PERMEABILIDAD PERMEABILITE PERMEABILITY Physiology. Development Pores ULTRAESTRUCTURA ULTRASTRUCTURE
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Zusammenfassung:	The cuticle of the parasitic roundworm Ascaris lumbricoides suum has been found to contain apparent pores, using scanning and transmission electron microscopy. However, X-ray spectral analysis and dot mapping analysis of diffusing divalent cations in the cuticle found these ions to be randomly distributed on the pseudocoelomic surface of the cuticle. This indicates that the pores seen with the electron microscope were not true structural pores and that the cuticle is homogeneously permeable to ions.
ISSN:	0014-4894 1090-2449
DOI:	10.1016/0014-4894(87)90180-9