Šlapeta J.R., Modrý D.,
Votýpka J., Jirků M., Oborník M., Lukeš J. & Koudela B. (2001) Eimeria telekii
n.sp. (Apicomplexa: Coccidia) from Lemniscomys striatus (Rodentia: Muridae): morphology,
pathology and phylogeny. Parasitology 122: 133-143.
Keywords:
Eimeria telekii n.sp., coccidia, life-cycle, pathology, genetic analysis, SSU
rRNA
NATURALLY INFECTED HOSTS, DOMESTIC-FOWL, OOCYSTS, DNA, POLYMORPHISM, SEQUENCES,
REITHRODONTOMYS, ARIZONENSIS, TAXONOMY, MICE
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 ol al to spherical or ellipsoidal, 20.4
x 15.7 (15.5-25.0 x 12.0-20.0) mum with a colourless, smooth and bilayered wall.
Sporocysts are ellipsoidal, 11.2 x 7.8 (10.0-12.0 x 7.0-9.0) mum 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 rook 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.dagger.
ISSN 0031-1820
IF 1,944
UK