Cryptosporidium fayeri n. sp. (Apicomplexa:Cryptosporidiidae) from the red kangaroo (Macropus rufus)

Una M. Ryan, Michelle Power, Lihua Xiao

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The morphology and infectivity of the oocysts of a new species of Cryptosporidium from the faeces of the red kangaroo (Macropus rufus) are described. Oocysts are structurally indistinguishable from those of Cryptosporidium parvum. Oocysts of the new species are passed fully sporulated, lack sporocysts, and measure 4.5-5.1 μm (mean=4.9) × 3.8-5.0 μm (mean=4.3 μm) with a length to width ratio 1.02:1.18 (mean 1.14) (n=50). Oocysts were not infectious for neonate ARC Swiss mice. Multi-locus analysis of numerous unlinked loci demonstrated this species to be distinct (90.64%-97.88% similarity) from C. parvum. Based on biological and molecular data, this Cryptosporidium infecting marsupials is proposed to be a new species Cryptosporidium fayeri n. sp.

LanguageEnglish
Pages22-26
Number of pages5
JournalJournal of Eukaryotic Microbiology
Volume55
Issue number1
DOIs
Publication statusPublished - Jan 2008

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Cryptosporidiidae
Macropus rufus
Apicomplexa
Macropodidae
Cryptosporidium
Oocysts
oocysts
Cryptosporidium parvum
new species
sporocysts (Protozoa)
loci
AIDS-Related Complex
Metatheria
Marsupialia
neonates
pathogenicity
Feces
feces
Miozoa
mice

Cite this

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title = "Cryptosporidium fayeri n. sp. (Apicomplexa:Cryptosporidiidae) from the red kangaroo (Macropus rufus)",
abstract = "The morphology and infectivity of the oocysts of a new species of Cryptosporidium from the faeces of the red kangaroo (Macropus rufus) are described. Oocysts are structurally indistinguishable from those of Cryptosporidium parvum. Oocysts of the new species are passed fully sporulated, lack sporocysts, and measure 4.5-5.1 μm (mean=4.9) × 3.8-5.0 μm (mean=4.3 μm) with a length to width ratio 1.02:1.18 (mean 1.14) (n=50). Oocysts were not infectious for neonate ARC Swiss mice. Multi-locus analysis of numerous unlinked loci demonstrated this species to be distinct (90.64{\%}-97.88{\%} similarity) from C. parvum. Based on biological and molecular data, this Cryptosporidium infecting marsupials is proposed to be a new species Cryptosporidium fayeri n. sp.",
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Cryptosporidium fayeri n. sp. (Apicomplexa:Cryptosporidiidae) from the red kangaroo (Macropus rufus). / Ryan, Una M.; Power, Michelle; Xiao, Lihua.

In: Journal of Eukaryotic Microbiology, Vol. 55, No. 1, 01.2008, p. 22-26.

Research output: Contribution to journalArticleResearchpeer-review

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