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Trypanosoma cf. varani in an imported ball python (Python reginus) from Ghana.

Hiroshi Sato¹, Ai Takano, Hiroki Kawabata

¹Laboratory of Veterinary Parasitology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan. sato7dp4@yamaguchi-u.ac.jp

The Journal of Parasitology

|January 6, 2010

Summary

This summary is machine-generated.

A ball python imported from Ghana was found to be infected with trypanosomes closely related to Trypanosoma varani. This suggests reptiles may share trypanosome species, necessitating further research into African reptile trypanosomes.

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Area of Science:

Parasitology
Herpetology
Molecular Biology

Background:

Trypanosomes are protozoan parasites that infect a wide range of vertebrates.
Reptiles are known hosts for various Trypanosoma species, but their diversity and host specificity in Africa remain incompletely understood.

Purpose of the Study:

To identify and characterize trypanosomes isolated from the peripheral blood of a ball python (Python reginus).
To investigate the phylogenetic relationship of the isolated trypanosomes to known species, particularly Trypanosoma varani.

Main Methods:

Isolation and culturing of trypanosomes from python blood using Barbour-Stoenner-Kelly (BSK) medium.
Molecular phylogenetic analysis using small subunit ribosomal DNA (rDNA) sequences.
Gene sequencing of glycosomal glyceraldehyde-3-phosphate dehydrogenase.
Morphological examination of Giemsa-stained blood smears.

Main Results:

Culturing yielded trypanosomes with diverse morphologies.
Phylogenetic analysis indicated the isolate is closely related to Trypanosoma varani.
Sequence analysis of the glyceraldehyde-3-phosphate dehydrogenase gene showed minimal differences between isolates.
Blood smear examination revealed trypomastigotes resembling T. varani or T. voltariae.

Conclusions:

The ball python was infected with a trypanosome species closely related to Trypanosoma varani.
Reptiles, including lizards and snakes, may share trypanosome species.
Further research is needed to clarify trypanosome species diversity and relationships in African reptiles.