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Eimeria telekii n.sp. (Apicomplexa: Coccidia) from Lemniscomys striatus (Rodentia: Muridae): morphology, pathology and phylogeny

Published online by Cambridge University Press:  21 May 2002

J.R. šLAPETA ,
D. MODRÝ ,
J. VOTÝPKA ,
M. JIRKŮ ,
M. OBORNÍK ,
J. LUKEš  and
B. KOUDELA
J.R. šLAPETA
Affiliation:
Department of Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno,Czech Republic
D. MODRÝ
Affiliation:
Department of Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno,Czech Republic Institute of Parasitology, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
J. VOTÝPKA
Affiliation:
Institute of Parasitology, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic Department of Parasitology, Faculty of Sciences, Charles University, Viničná 7, 128 44 Prague, Czech Republic
M. JIRKŮ
Affiliation:
Institute of Parasitology, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic Faculty of Biology, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
M. OBORNÍK
Affiliation:
Institute of Parasitology, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic Faculty of Biology, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
J. LUKEš
Affiliation:
Institute of Parasitology, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic Faculty of Biology, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
B. KOUDELA
Affiliation:
Department of Parasitology, University of Veterinary and Pharmaceutical Sciences, Palackého 1-3, 612 42 Brno,Czech Republic Institute of Parasitology, Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
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Abstract

Using a combination of morphological, life-cycle and molecular data, we describe a new apicomplexan parasite Eimeria telekii n.sp. from a striped grass mouse Lemniscomys striatus captured in Kenya. Oocysts are oval to spherical or ellipsoidal, 20·4×15·7 (15·5–25·0×12·0–20·0)μm with a colourless, smooth and bilayered wall. Sporocysts are ellipsoidal, 11·2×7·8 (10·0–12·0×7·0–9·0)μm with a small Stieda body and granular sporocyst residuum and contain 2 elongated, banana-shaped sporozoites with a single refractile body. Life-cycle, pathogenicity and host specificity of this parasite were studied in laboratory-bred Lemniscomys barbarus and BALB/c mice. Two asexual stages and the sexual phase took place within the enterocytes of the caecum and colon of L. barbarus but not in inoculated BALB/c mice. An infectious dose of 5000 oocysts caused severe clinical illness and mortality in 2/2 (100%) L. barbarus. Phylogenetic analysis of the small subunit rRNA gene of E. telekii and members of the genera Eimeria, Cyclospora and Isospora placed E. telekii within the eimerian rodent clade.The nucleotide sequence was deposited in the GenBankTM under the accession number AF246717.

Keywords

Eimeria telekii n.sp.coccidialife-cyclepathologygenetic analysisSSU rRNA
Type
Research Article
Information
Parasitology , Volume 122 , Issue 2 , February 2001 , pp. 133 - 143
Copyright
© 2001 Cambridge University Press

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