Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description

Hassalstrongylus dollfusi (Díaz-Ungría, 1963) Durette-Desset, 1971 was described in a wild house mouse, Mus musculus, from Venezuela and, since then, has never been reported again in the type host or in any other host. In this work, specimens assignable to H. dollfusi were found at 10 localities in...

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Autores principales: Serrano, Paula Carolina, Digiani, María Celina, Gómez Muñoz, María de los Angeles, Notarnicola, Juliana, Robles, María del Rosario, Navone, Graciela Teresa
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Biología
Nippostrongylinae
Helminths
Sigmodontinae
Primary hosts
Northeast Argentina
Venezuela
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/130023
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-130023
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Nippostrongylinae
Helminths
Sigmodontinae
Primary hosts
Northeast Argentina
Venezuela
spellingShingle Biología
Nippostrongylinae
Helminths
Sigmodontinae
Primary hosts
Northeast Argentina
Venezuela
Serrano, Paula Carolina
Digiani, María Celina
Gómez Muñoz, María de los Angeles
Notarnicola, Juliana
Robles, María del Rosario
Navone, Graciela Teresa
Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description
topic_facet Biología
Nippostrongylinae
Helminths
Sigmodontinae
Primary hosts
Northeast Argentina
Venezuela
description Hassalstrongylus dollfusi (Díaz-Ungría, 1963) Durette-Desset, 1971 was described in a wild house mouse, Mus musculus, from Venezuela and, since then, has never been reported again in the type host or in any other host. In this work, specimens assignable to H. dollfusi were found at 10 localities in Northeast Argentina, in five species of sigmodontine rodents. The nematodes were attributed to H. dollfusi based on diagnostic characters such as: synlophe with 22–31 subequal ridges; in males, hypertrophy of right ray 4 of the male bursa, thickening of the dorsal ray and bases of rays 8, distal tip of the spicules bent and spoon shaped; and, in females, presence of subventral postvulvar alae supported by hypertrophied struts. The new host recorded are: Oligoryzomys fornesi, O. flavescens, O. nigripes, Holochilus chacarius and Akodon azarae. The parasite showed a strong preference for host species of Oligoryzomys, which appear to act as primary hosts. The parasite could be present, parasitizing different species of Oligoryzomys, in a geographic area from the type locality in Venezuela southward to north Corrientes in Argentina. It has not been reported from populations of Oligoryzomys spp. of the Argentinean and Brazilian Atlantic Forest, nor south of 28 S, which may be explained by constraints in the environmental conditions required by the free-living stages of the parasite. This study provides the first identification and redescription of H. dollfusi in southern South America, from autochthonous hosts, six decades after its description.
format Articulo
Articulo
author Serrano, Paula Carolina
Digiani, María Celina
Gómez Muñoz, María de los Angeles
Notarnicola, Juliana
Robles, María del Rosario
Navone, Graciela Teresa
author_facet Serrano, Paula Carolina
Digiani, María Celina
Gómez Muñoz, María de los Angeles
Notarnicola, Juliana
Robles, María del Rosario
Navone, Graciela Teresa
author_sort Serrano, Paula Carolina
title Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description
title_short Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description
title_full Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description
title_fullStr Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description
title_full_unstemmed Hassalstrongylus dollfusi (Nematoda, Heligmonellidae): rediscovery in native South American rodents, six decades after its description
title_sort hassalstrongylus dollfusi (nematoda, heligmonellidae): rediscovery in native south american rodents, six decades after its description
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/130023
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