Cryptosporidium macropodum n. sp is described. Oocysts of C. macropodum from the feces of kangaroos (Macropus spp.) are morphologically indistinguishable from other mammalian Cryptosporidium species, including C. parvum, C. hominis, C. suis, and C. canis. The oocysts are fully sporulated on excretion, lack sporocysts, and have an average width of 4.9 μm (4.5– 6.0), a length of 5.4 μm (5.0–6.0), and a length:width ratio of 1.1. Phylogenetic analyses of the 18S ribosomal RNA, actin, and heat shock protein 70 (HSP70) loci demonstrate that C. macropodum is genetically distinct from all described Cryptosporidium species, including others found in marsupials. The parasite seems to be highly host-specific, because it has been found only in marsupials to date. Therefore, based on biological and molecular data, we consider C. macropodum a new species.
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October 2008
Research Article|
October 01 2008
A New Species of Cryptosporidium (Apicomplexa: Cryptosporidiidae) from Eastern Grey Kangaroos (Macropus giganteus)
Michelle L. Power;
Michelle L. Power
Department of Biological Sciences, Macquarie University, North Ryde, New South Wales 2109, Sydney, Australia. mpower@els.mq.edu.au
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Una M. Ryan
Una M. Ryan
Department of Biological Sciences, Macquarie University, North Ryde, New South Wales 2109, Sydney, Australia. mpower@els.mq.edu.au
* Division of Veterinary and Biomedical Sciences, Murdoch University, Western Australia 6150, Murdoch, Australia
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J Parasitol (2008) 94 (5): 1114–1117.
Citation
Michelle L. Power, Una M. Ryan; A New Species of Cryptosporidium (Apicomplexa: Cryptosporidiidae) from Eastern Grey Kangaroos (Macropus giganteus). J Parasitol 1 October 2008; 94 (5): 1114–1117. doi: https://doi.org/10.1645/GE-1508.1
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