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Trypanosoma (Megatrypanum) ornata sp. n., a Parasite of the Eurasian Water Shrew Neomys fodiens (Pennant, 1771)
並列摘要
Infection with the new trypanosome species Trypanosoma ornata sp. n. was detected in water shrews Neomys fodiens examined for presence of blood parasites in September 2003 and 2004 in Bialowieza Forest (eastern Poland). The prevalence of infection was about 36.3% (4 out of 11 shrews examined). The parasites were described based on light microscopic characteristics, from 100 parasites isolated from blood of four infected animals. The trypanosomes occurred as trypomastigote forms only. Body length ranged from 20.50-38.26 μm (mean 26.66 μm), and width from 1.93-4.12 μm (mean 3.06 μm), with the free flagellum 3.12±1.26 long, sometimes absent. Other morphological features of the species (small kinetoplast, sometimes the vermiform posterior end, the surface of the cell markedly striated with longitudinal ”myonemes”, short or absent free flagellum) support its affiliation to the Megatrypanum subgenus. The study provides the first detailed description of trypanosomes occurring in the Eurasian water shrew Neomys fodiens.
延伸閱讀
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