ArticleParasitology research2019
Integrative taxonomic approach of trypanosomes in the blood of rodents and soricids in Asian countries, with the description of three new species.
Article in Parasitology research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 15 citations in OpenAlex.
- Blood parasites and bacteria of Muroidea rodents of the Chornobyl Exclusion Zone.International journal for parasitology. Parasites and wildlife · 2026Article
- Haemosporidian and trypanosomatid diversity in a high-latitude island ecosystem, including the first record of Zelonia in the Nearctic.Parasitology research · 2025Article
- Article
- Novel trypanosomatid species detected in Mongolian pikas (Ochotona pallasi) and their fleas in northwestern China.Parasites & vectors · 2024Article
- First record of Trypanosoma (Ornithotrypanum) infecting Neotropical birds.Parasitology research · 2024Article
- Trypanosome diversity in small mammals in Uganda and the spread of Trypanosoma lewisi to native species.Parasitology research · 2023Article
- Euglenozoa: taxonomy, diversity and ecology, symbioses and viruses.Open biology · 2021Review
- Novel organization of mitochondrial minicircles and guide RNAs in the zoonotic pathogen Trypanosoma lewisi.Nucleic acids research · 2020Article
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Authors and funding
9 authors at 9 institutions in 5 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Trypanosoma lewisi (Kinetoplastea: Trypanosomatida: Trypanosomatidae) with a cosmopolitan distribution is the type species of the subgenus Herpetosoma, which includes ca. 50 nominal species isolated mainly from rodents. Since members of Herpetosoma in different host species have an almost identical morphology of bloodstream forms, these trypanosomes are referred to as 'T. lewisi-like', and the molecular genetic characterization of each species is necessary to verify their taxonomy. In the present study, we collected blood samples from 89 murid rodents of 15 species and 11 soricids of four species in Indonesia, Philippines, Vietnam, Taiwan, and mainland China for the detection of hemoprotozoan infection. T. lewisi and T. lewisi-like trypanosomes were found in the blood smears of 10 murid animals, which included Bandicota indica (two rats), Rattus argentiventer (one rat), and Rattus tiomanicus (two rats) in Indonesia; Rattus rattus (one rat) in the Philippines; and Niviventer confucianus (four rats) in mainland China. Furthermore, large- or medium-sized non-T. lewisi-like trypanosomes were detected in two soricids, Crocidura dracula in Vietnam and Anourosorex yamashinai in Taiwan, respectively. Molecular genetic characterization of the small subunit (SSU) ribosomal RNA gene (rDNA) and glycosomal glyceraldehyde-3-phosphate dehydrogenase (gGAPDH) gene indicated that the trypanosomes from all the murid hosts had identical SSU rDNA or gGAPDH gene nucleotide sequences except for those in N. confucianus in mainland China. These N. confucianus-infecting trypanosomes also showed several unique morphological features such as smaller bodies, anteriorly positioned nuclei, and larger rod-shaped kinetoplasts when compared with T. lewisi trypomastigotes. Trypanosoma (Herpetosoma) niviventerae n. sp. is erected for this new species. Similarly, based on morphological and molecular genetic characterization, Trypanosoma sapaensis n. sp. and Trypanosoma anourosoricis n. sp. are proposed for the trypanosomes in C. dracula in Vietnam and A. yamashinai in Taiwan, respectively. More effort directed toward the morphological and molecular genetic characterization of the trypanosomes of rodents and soricids is required to fully understand the real biodiversity of their hemoflagellates.
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