Hemoparasites of the genus Trypanosoma (Kinetoplastida: Trypanosomatidae) and hemogregarines in Anurans of the São Paulo and Mato Grosso do Sul States - Brazil



Título del documento: Hemoparasites of the genus Trypanosoma (Kinetoplastida: Trypanosomatidae) and hemogregarines in Anurans of the São Paulo and Mato Grosso do Sul States - Brazil
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000364759
ISSN: 0001-3765
Autors: 1
1
2
1
3
3
Institucions: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Biociencias, Botucatu, Sao Paulo. Brasil
2Universidade Federal de Vicosa, Instituto de Biotecnologia Aplicada a Agropecuaria, Vicosa, Minas Gerais. Brasil
3Centro de Ciencias Biologicas e da Saude, Departamento de Biologia-Ecologia, Campo Grande, Mato Grosso do Sul. Brasil
Any:
Període: Jun
Volum: 81
Número: 2
Paginació: 199-206
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés Wild animals are exposed to numerous pathogens, including hemoparasites. The Trypanosoma and hemogregarine group are frequently reported as parasites in anurans (frogs, tree frogs and toads). The identification of these hemoparasites is usually made through stage observation of their morphology in the peripheral blood of the host. There are no studies, however, based on the biological cycle of these hemoparasites. The objective of the present study was to evaluate the presence of hemogregarines and Trypanosoma spp. in anurans captured in the States of São Paulo and Mato Grosso do Sul – Brazil and to perform the morphological and morphometric characterization of these hemoparasites. The species of anurans examined were: Dendropsophus nanus, D. minutus, Leptodactylus chaquensis, L. podicipinus, L. labyrinthicus, L. fuscus, Bufo granulosus, B. schneideri, Phyllomedusa hypocondrialis, Trachicephalus venulosus, Scinax fuscovarius and Hypsiboas albopunctatus. Of the total of 40 animals studied, four (10%) were positive for hemogregarines and eight (20%) were positive for Trypanosoma spp. Hemogregarine gamonts showed variable morphology and, in addition to intra-erythrocytic forms, extra-erythrocytic forms were also observed. Extremely different forms of Trypanosomawere observed, as described in the literature, with the broad and oval forms being the most common
Disciplines Biología
Paraules clau: Anfibios y reptiles,
Parasitología,
Protozoarios,
Anuros,
Hemogregarinas,
Trypanosoma,
Hemoparásitos
Keyword: Biology,
Amphibians and reptiles,
Parasitology,
Protozoa,
Protozoans,
Anura,
Hemogregarine,
Trypanosoma,
Hemoparasites
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