Intrahepatic growth and maturation of Gnathostoma turgidum in the natural definitive opossum host, Didelphis virginiana
Por:
Díaz-Camacho S.P., Delgado-Vargas F., Willms K., de la Cruz-Otero, MD, Rendon-Maldonado, JG, Robert L., Antuna S., Nawa Y.
Publicada:
1 sep 2010
Resumen:
Gnathostoma turgidum is a gastric nematode parasite of opossums found in the Americas. We recently found that G. turgidum juveniles appear in the liver of the opossums where they become mature adults and almost synchronously move to the stomach during certain months of the year, suggesting the importance of the liver for the growth and maturation of this species in the final hosts. In this study we attempted to detect G. turgidum larvae in the liver of opossums, Didelphis virginiana that are the natural final hosts. The results show that tiny (<3 mm in length) third stage larvae (L3) appeared in the liver of opossums around November and December. Also in the liver, we found large L3 of up to about 10 mm in length together with juveniles and mature adults from February to March. In spite of their length, large L3 have 4 rows of hooklets, and their gonads remained undeveloped. Morphological features of the small and large L3 of G. turgidum are described including scanning electron micros
Filiaciones:
Díaz-Camacho S.P.:
Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, Mexico
Delgado-Vargas F.:
Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, Mexico
Willms K.:
Univ Nacl Autonoma Mexico, Dept Microbiol & Parasitol, Fac Med, Mexico City 04510, DF, Mexico
Robert L.:
Univ Nacl Autonoma Mexico, Dept Microbiol & Parasitol, Fac Med, Mexico City 04510, DF, Mexico
Antuna S.:
Univ Nacl Autonoma Mexico, Dept Biol Celular & Tisular, Fac Med, Mexico City 04510, DF, Mexico
Nawa Y.:
Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, Mexico
Division of Parasitology, Department of Infectious Diseases, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
|