A new species of Trichuris from Thrichomys apereoides (Rodentia: Echimyidae) in Brazil: Morphological and histological studies

A new species of Trichuris from Thrichomys apereoides (Rodentia: Echimyidae) in Brazil: Morphological and histological studies

Trichuris thrichomysi n. sp., recovered from the cecum of the wild rodent Thrichomys apereoides from a transition zone between the Atlantic Forest and Cerrado morfoclimatic domains, and its life cycle observed under experimental conditions are described. This new species is closely related to Trichu...

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Bibliographic Details
Published in:Veterinary parasitology Vol. 176; no. 2-3; pp. 226 - 235
Main Authors: Torres, Eduardo J. Lopes, Nascimento, Ariel P.F., Menezes, Aleksandra O., Garcia, Juberlan, dos Santos, Marcos Antônio José, Maldonado, Arnaldo, Miranda, Kildare, Lanfredi, Reinalda M., de Souza, Wanderley
Format: Journal Article
Language:English
Published: Netherlands Elsevier B.V 10-03-2011
Amsterdam; New York: Elsevier
Subjects:
Animals
Brazil - epidemiology
Female
FESEM
Histology
Male
Nematoda
Pantanal
Rodent Diseases - epidemiology
Rodent Diseases - parasitology
Rodentia - parasitology
SEM
Species Specificity
Trichuriasis - epidemiology
Trichuriasis - parasitology
Trichuriasis - veterinary
Trichuris
Trichuris - anatomy & histology
Trichuris - classification
Brazil
Pantanal
Histology
SEM
Nematoda
FESEM
Trichuris
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Summary:Trichuris thrichomysi n. sp., recovered from the cecum of the wild rodent Thrichomys apereoides from a transition zone between the Atlantic Forest and Cerrado morfoclimatic domains, and its life cycle observed under experimental conditions are described. This new species is closely related to Trichuris travassosi, Trichuris chiliensis and Trichuris fulvi, but can be distinguished from them mainly by differences in the posterior end of males. Details of the surface such as the bacillary gland, cuticular inflations and several morphological details obtained by scanning electron microscopy and field emission scanning electron microscopy confirmed the characteristics that differentiate the new species. The histopathology of the intestinal wall of naturally infected rodents is also reported. The present study extends the geographical distribution of T. thrichomysi n. sp to the Pantanal ecosystem and reports a new host, Thrichomys pachiurus.
Bibliography:http://dx.doi.org/10.1016/j.vetpar.2010.10.053
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0304-4017
1873-2550
DOI:10.1016/j.vetpar.2010.10.053