<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Larvae of tetraphyllidean cestodes have been recorded in several species of marine teleosts. However, little is known on parasite-host interactions. In view of this, the present study aims at i) determining the localization sites of a larval type, belonging to the Scolex group, in the digestive tract mucose; ii) describing the anatomo-pathological features of the larval lesions produced; and iii) evaluating the potential effect of parasite intensity on the body condition of the host. Our findings reveal that parasitic charges were more intense in the second portion of the digestive tract. In the area of contact between the parasite and the epithelium a compressive atrophy of the cells was observed with a marked lowering and disappearance of the epithelial layer. The condition factor of the samples analyzed was significantly affected by infection intensity, thus revealing an adverse effect on the growth and physical condition of the host.</p></abstract>

Larvae of tetraphyllidean cestodes have been recorded in several species of marine teleosts. However, little is known on parasite-host interactions. In view of this, the present study aims at i) determining the localization sites of a larval type, belonging to the Scolex group, in the digestive tract mucose; ii) describing the anatomo-pathological features of the larval lesions produced; and iii) evaluating the potential effect of parasite intensity on the body condition of the host. Our findings reveal that parasitic charges were more intense in the second portion of the digestive tract. In the area of contact between the parasite and the epithelium a compressive atrophy of the cells was observed with a marked lowering and disappearance of the epithelial layer. The condition factor of the samples analyzed was significantly affected by infection intensity, thus revealing an adverse effect on the growth and physical condition of the host.

Host-parasite relationships between Porichthys porosissimus (Pisces) and cestode larvae of the Scolex group

Laboratorio de Patología de Organismos Acuáticos, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, 8000, Bahía Blanca, Argentina

Helminthologia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Larvae of tetraphyllidean cestodes have been recorded in several species of marine teleosts. However, little is known on parasite-host interactions. In view of...

Host-parasite relationships between Porichthys porosissimus (Pisces) and cestode larvae of the Scolex group

Publié en ligne: 08 sept. 2009

Pages: 162 - 167

DOI: https://doi.org/10.2478/s11687-009-0031-x

Mots clés
Tetraphyllidea, Porichthys porosissimus, Pathology, Scolex group

© 2009 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Host-parasite relationships between Porichthys porosissimus (Pisces) and cestode larvae of the Scolex group

Publié en ligne: 08 sept. 2009

Pages: 162 - 167

DOI: https://doi.org/10.2478/s11687-009-0031-x

Mots clésTetraphyllidea, Porichthys porosissimus, Pathology, Scolex group

© 2009 Institute of Parasitology, SAS, Košice, Slovakia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Tetraphyllidea, Porichthys porosissimus, Pathology, Scolex group