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A new species of <italic>Cystoisospora</italic> Frenkel, 1977 (Apicomplexa: Sarcocystidae) from <italic>Oecomys mamorae</italic> Thomas (Rodentia: Cricetidae) in the Brazilian Pantanal.

Authors :
Barreto, Wanessa Teixeira Gomes
de Andrade, Gisele Braziliano
Viana, Lúcio André
de Oliveira Porfírio, Grasiela Edith
Santos, Filipe Martins
Perdomo, Alessandra Cabral
do Carmo, Jéssica Soares
da Silva, Alanderson Rodrigues
Maltezo, Taynara Rocha
Herrera, Heitor Miraglia
Source :
Systematic Parasitology; May2018, Vol. 95 Issue 4, p383-389, 7p
Publication Year :
2018

Abstract

Despite the great diversity of coccidians, to our knowledge, no coccidian infections have been described in &lt;italic&gt;Oecomys&lt;/italic&gt; spp. In this context, we examined &lt;italic&gt;Oecomys mamorae&lt;/italic&gt; Thomas (Rodentia: Cricetidae) from the Brazilian Pantanal for infections with enteric coccidia. Nine individuals were sampled, and one was found to be infected. The o&#246;cysts were recovered through centrifugal flotation in sugar solution. Using morphological and morphometric features, we described a new species of &lt;italic&gt;Cystoisospora&lt;/italic&gt; Frenkel, 1977. Sporulated o&#246;cysts were ovoidal 20.0-29.1 &#215; 16.4-23.2 (26.7 &#215; 21.2) &#181;m and contained two sporocysts, 12.9-19.1 &#215; 9.4-13.9 (16.4 &#215; 12.4) &#181;m, each with four banana-shaped sporozoites. Polar granule and o&#246;cyst residuum were both absent. We documented the developmental forms in the small intestine and described the histopathological lesions in the enteric tract. Our results indicate that the prevalence of &lt;italic&gt;Cystoisospora mamorae&lt;/italic&gt; n. sp. in &lt;italic&gt;O&lt;/italic&gt;. &lt;italic&gt;mamorae&lt;/italic&gt; is low, and tissue damage in the enteric tract is mild, even in the presence of coccidian developmental stages. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01655752
Volume :
95
Issue :
4
Database :
Complementary Index
Journal :
Systematic Parasitology
Publication Type :
Academic Journal
Accession number :
128815725
Full Text :
https://doi.org/10.1007/s11230-018-9788-y