Atypical lesions and infection sites of larval trematodes in marine gastropods from Argentina.
Dis Aquat Organ
; 130(3): 241-246, 2018 09 27.
Article
en En
| MEDLINE
| ID: mdl-30259876
ABSTRACT
This study documents the lesions caused by 9 digenean larvae parasitizing 6 marine gastropod species from Patagonia, Argentina. Most digeneans produce a lesion where the parthenitae replace the gonadal tissues and also occupy part of the digestive gland. Three atypical lesions and tropism were observed in (1) Trophon geversianus (Muricidae) infected by Renicolidae gen. et sp. 1, where the sporocysts occur inside the gonad acini which retain their general structure due to the persistence of the acinus wall, (2) Nacella magellanica (Nacellidae) infected by Renicolidae gen. et sp. 2, where the gonad is not affected and the sporocysts are located only among the digestive gland tubules, and (3) Siphonaria lessonii (Siphonariidae) infected by Schistosomatidae gen. et sp., where fully developed cercariae occur inside the digestive tubules. At high infection intensities or in double infections, larvae can invade other organs (mantle, foot or gill) and, on occasion, may elicit hemocytic encapsulation.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Trematodos
/
Infecciones por Trematodos
/
Gastrópodos
País/Región como asunto:
America do sul
/
Argentina
Idioma:
En
Revista:
Dis Aquat Organ
Asunto de la revista:
BIOLOGIA
/
MEDICINA VETERINARIA
/
MICROBIOLOGIA
Año:
2018
Tipo del documento:
Article