SEM study of Anisakis brevispiculata Dollfus, 1966 and Pseudoterranova ceticola (Deardoff and Overstreet, 1981) (Nematoda: Anisakidae), parasites of the pygmy sperm whale Kogia breviceps
Scanning Electron Microscopy (SEM) was used to study different topo-morphological characteristics of the architecture (cuticle, excretory pore, lips and adjacent structures, number and distribution patterns of caudal papillae and papillae-like structures) of the anisakid nematodes Anisakis brevispic...
| Published in: | Scientia Marina |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Consejo Superior de Investigaciones Científicas
2002
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| Subjects: | |
| Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/583 https://doi.org/10.3989/scimar.2002.66n3249 |
| Summary: | Scanning Electron Microscopy (SEM) was used to study different topo-morphological characteristics of the architecture (cuticle, excretory pore, lips and adjacent structures, number and distribution patterns of caudal papillae and papillae-like structures) of the anisakid nematodes Anisakis brevispiculata and Pseudoterranova ceticola, parasites in the stomach of the pygmy sperm whale Kogia breviceps. SEM micrographs herein help to accurately define the above surface topographical features by adding a more adequate 3-D picture to the original descriptions of both parasitic species. In A. brevispiculata the entire body cuticle structure, well-differentiated paracloacal papillae and the wrinkle cuticle of the papillae are clear examples that enhance the above differentiation of structures as seen by LM or SEM. Similarly, in P. ceticola the cuticle striations, bulky cloacal lips, rectangular distribution pattern of distal papillae and the absence of a groove separating paracloacal papillae which are obliquely arranged are all different to those features previously described. Se utilizó la técnica de Microscopía Electrónica de Barrido (MEB) para estudiar las diferentes características topo-morfológicas de la arquitectura (cutícula, poro excretor, labios y estructuras adyacentes, y el número y el patrón de distribución de las papilas caudales y de las estructuras papilares) de los nemátodos anisáquidos Anisakis brevispiculata y Pseudoterranova ceticola, parásitos en el estómago del cachalote pigmeo Kogia breviceps. Las microfotografías obtenidas al MEB permiten una mejor definición de las características topográficas de los nematodos, ya que añaden una visión tridimensional a las descripciones originales de ambas especies parásitas. En A. brevispiculata, los caracteres de la estructura cuticular corporal, las papilas paracloacales bien diferenciadas y la estriación cuticular de las papilas son claros ejemplos que muestran la diferenciación de las estructuras observadas a microscopía óptica de las observadas a ... |
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