New species of Choleoeimeria (Apicomplexa: Eimeriidae), coccidia of bile-bladders of reptiles, illustrating a multiplicity of host cell-parasite interrelations.
Oocyst characteristics and histological features of the endogenous development of bile-bladder coccidia of the genus Choleoeimeria Paperna and Landsberg, 1989 are described and the main features for species differentiation are discussed for the following new species: C. allogamae n. sp. from Agama sp., Cameroon, West Africa; C. allogehyrae n. sp. from Gehyra australis, Magnetic Island (type) and mainland N Queensland, Australia; C. boulii n. sp. from Gehyra variegata, SW Queensland, Australia; C. calotesi n. sp. from Calotes mystaceus, Xiang-Mai, Thailand; C. heteronotis n. sp. from Heteronotia binoei, N Queensland, Australia; C. lygosomis n. sp. from Lygosoma buringi, Kon-Kaen, Thailand; C. sylvatica n. sp. from Carlia rhomboidalis, N Queensland, Australia, and C. xiangmaii n. sp. from Hemidactylus frenatus, Xiang-Mai, Thailand. Oocyst characteristic of Choleoeimeria are also reported from Oedura castelnaui, N Queensland. The described species demonstrate a diversity of associations with the bile-bladder epithelial lining, from a single parasite in a single hypertrophic host cell to multiple infections inducing the hypertrophied cells to form stratified layers, or merge into branched clumps.
Paperna
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Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences of the Hebrew University of Jerusalem, Rehovot 76-100, Israel. paperna@agri.huji.ac.il
D000818:Animals; D001646:Bile / Q000469:parasitology; D002163:Cameroon; D003048:Coccidiosis / Q000469:parasitology / Q000662:veterinary*; D021743:Eimeriidae / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification* / Q000502:physiology / Q000648:ultrastructure; D004848:Epithelium / Q000469:parasitology; D005243:Feces / Q000469:parasitology; D005704:Gallbladder / Q000469:parasitology* / Q000473:pathology; D005705:Gallbladder Diseases / Q000469:parasitology / Q000662:veterinary*; D006790:Host-Parasite Interactions; D006984:Hypertrophy; D008116:Lizards / Q000469:parasitology*; D033661:Oocysts / Q000648:ultrastructure; D011793:Queensland; D013045:Species Specificity; D013785:Thailand