Keywords
Proechimys iheringi
How to Cite
Abstract
The blood of wild rodents captured alive in the field station of Casa Grande, municipality of Salesópolís, State of São Paulo was examined for hemoparasites. Trypanosomas of the subgenus Herpetosoma were discovered in the blood of 4 specimens of Proechimsis iherinçi, The parasites showed an average size of 21.7 J.Lm and an average nuclear index equivalent to 1.9. Attempts to cultivate the trypanosomas in NNN, Lit and Ducrey media failed. However, when Ducrey medium was added 2% of blood of Proechim.us 'iheringi there was abundant growth of mastigotes. Inoculation of Mus mUBculus, Akodon sp., Oryzomys sp. and Cricetus auratus were negative; however, inoculation of laboratory-born and reared Proechimys iheringi was successful and there was circulation of the parasite in the blood.
It is suggested that the parasites isolated belong to a new species considering the behavior and specificity of the subgenus Herpetosoma to vertebrate hosts and the characteristics of the ísolates.
References
2. ARTIGAS, P. T. & PACHECO, G. - Trypanosoma myocastor n. sp, parasita do
Myocastor coypus. Ann. Fac. Med. Univ. S. Paulo, 10:317-8, 1934.
3. BARRETTO, M. P. & RIBEIRO, R. D. Tripanossomos do subgênero Herpetosoma
Doflein, 1901 em roedores silvestres, com a descrição de duas novas espécies. In: CONGRESSO BRASILEIRO DE PARASITOLOGIA, 5.°, Rio de Janeiro, 1980. p. 30. [Resumos de trabalhos]
4. BRENER, Z. - Contribuição ao estudo da terapêutica experimental da doença de Chaças, Belo Horizonte, 1961. p. 21-22. [Tese livre-doe. - Faculdade de Odontologia e Farmácia da Universidade de Minas Gerais]
5. CARINI, A. & MACIEL, J. - Sur une Hémogrégarine et un Trypanosome d'un muridé (Akadon fuliginosu8). Buli. Soc. Pathol. exot., 8: 165-9, 1915.
6. COUTINHO, J. O. & PATTOLLI, D. - Contribuição para o conhecimento dos tripa-
nosomos de roedores, com a descrição de duas novas espécies. Papo avulsos Dep . Zool. (S. Paulo), 16:217-27, 1964.
7. D'ALESSANDRO, A. -. Biology of Trypanosoma (Herpetoeoma ) rangeli Tejera, 1920. ln: LUMSDEN, W. H. R. & EVANS, D. A., ed. - Biology o] the Kinetoplastida, A biological monoqraph; London, Academic press, 1976. v. 1, p. 328.
8. DA VIS, B. S. apud HOARE, C. - The Trypanosomes of mammals. A ecological monograph. Oxford, Blackwell, 1972. p. 214-15.
9. DEANE, L. M. - Tripanosomideos de mamíferos da região amazônica. 1. Alguns flagelados encontrados no sangue de mamíferos silvestres do Estado do Pará. Rev, Inst. Med. Trop, S. Paulo, 3:15-28, 1961.
10. HOARE, C. A. - The trypanosomes o] mct'mmals. A zoolotrical. monograph. Oxford, Blackwell, 1972. p. 214.
11. MELLO, D. A. -- Trupomoeoma (Herpeioeoma) mariae n. sp., isolated from Calomue calloeus Rengger, 1830 (Rodentia - Cricetidae). Ann. Parasitol, Hurn, conip ; 53: 345-50, 1978.
12. MELLO, D. A. -Morphological and biological features of T'rypan080mct (Herpetosomct) l1wriae Mello, 1978 in experimental- ly infected Calomys callosus. Ann. Parasitol. HUl1'- comp., 57: 111-9, 1982.
13. MOLYNEUX, D. H. - Biology of trypanosomes of the subgenus Herpetoeoma, In : LUMSDEN, W. H. R. & EVANS, D. A., ed. - Biology o] the kinetoplastida. London, Academic, 1976. V. 1, p. 286.
14. PESSÔA, S. B. - Notas sobre alguns parasitas de ratos silvestres do Estado de São Paulo. Ice». Inst. Adolfo Lutz, 34:82-93, 1974.
15. TARGETT, G. A. T. & VIENS. P. - Irnmunity to TrypanoBoma (Herpetosouui ), Infections in rodents. In: LUMSDEN, W. H. R. & EVANS, D. A., ed. - Biology of the kinetoplastia. London, Academic press, 1979. V. 2, p. 462-3.
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