Morphological, morphometric, and molecular characterization of Hepatozoon spp. (Apicomplexa, Hepatozoidae) from naturally infected Caudisona durissa terrifica (Serpentes, Viperidae).

Autor(es): Moço Tatiana Cristina; da Silva Reinaldo José; Madeira Newton Goulart; Dos Santos Paduan Karina; Rubini Adriano Stefani; Leal Denise Dutra Menezes; O'Dwyer Lucia Helena

Resumo: Hepatozoon spp. are the most frequent intracellular protozoa in snakes. Considering the variety of parasites infecting specimens of Caudisona durissa terrifica and the divergent data in literature where only two species, Hepatozoon romani and Hepatozoon capsulata, are described, the aim of this study was to morphologically, morphometrically, and molecularly characterize Hepatozoon spp. from some naturally infected specimens of C. durissa terrifica, and observe changes caused by these protozoa in parasitized erythrocytes. Four snakes were examined. Two of them had two morphological distinct gamonts, while the other two had only one type of gamont. The six distinct gamonts were provisionally named gamonts A, B, C, D, E, and F. Statistical analysis, however, confirmed the existence of only four parasite populations, those which were capable of inducing significant alterations in determined red blood cells variables. Attempts to infect Aedes aegypti and Culex quinquefasciatus mosquitoes were done for each snake specimen. Some mosquitoes became infected and oocysts were recovered and measured. The detection of Hepatozoon DNA was obtained with success but the molecular characterization was unable to differentiate species of the samples, with respect to the fragment studied.

Palavras-Chave: Babesia; Vertebrate Host; Sporogonic Stage; Hepatozoon Species; Mature Oocyst

Imprenta: Parasitology Research, v. 110, n. 4, p. 1393-1401, 2012

Identificador do objeto digital: 10.1007/s00436-011-2639-2

Descritores: Aedes aegypti - Cell ; Aedes aegypti - DNA ; Aedes aegypti - Pathogenesis

Data de publicação: 2012