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Studies on Trypanosoma avium Danilewsky 1885 III. Life Cycle in vertebrate and invertebrate hosts

Published online by Cambridge University Press:  06 April 2009

J. R. Baker
J. R. Baker
Affiliation:
Department of Parasitology, London School of Hygiene and Tropical Medicine
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Extract

1. The life cycle of Trypanosoma avium in both its hosts is described.

2. In the vector (Ornithomyia avicularia) it undergoes a cyclical development in the alimentary canal. Multiplication occurs while the flagellate is in the crithi-dial stage, and, finally, pyriform haptomonad crithidia appear in the insect's hind-gut: these change into the infective metacyclic trypanosomes.

3. After penetrating the mucous membranes of the bird (following its ingestion of the louse-fly), the metacyclic trypanosomes probably invade the lymph system, and there develop (by growth alone) into the large forms seen in the bird's blood some 18–24 hr. later.

4. The trypanosomes persist in their natural hosts (but not in canaries) throughout the winter, more-or-less restricted to the bone-marrow. In the spring they reappear in the peripheral blood.

Type
Research Article
Information
Parasitology , Volume 46 , Issue 3-4 , November 1956 , pp. 335 - 352
Copyright
Copyright © Cambridge University Press 1956

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References

REFERENCES

Baker, J. R. (1956 a). Studies on Trypanosoma avium Danilewsky 1885. I. Incidence in some birds of Hertfordshire. Parasitology, 46, 308.CrossRefGoogle ScholarPubMed
Baker, J. R. (1956 b). Studies on Trypanosoma avium Danilewsky 1885. II. Its transmission by Ornithomyia avicularia L. Parasitology, 46, 321.CrossRefGoogle ScholarPubMed
Danilewsky, B. (1889). La Parasitologie Comparée du Sang. I. Nouvelles Recherches sur les Parasites du Sang des Oiseaux. Kharkoff.Google Scholar
Hewitt, R. (1940). Bird Malaria. (Amer. J. Hyg. Monograph no. 15. Baltimore: The Johns Hopkins Press.)Google Scholar
Hoare, C. A. (1923). An experimental study of the sheep trypanosome (T. melophagium Flu, 1908), and its transmission by the sheep-ked (Melophagus ovinus L.). Parasitology, 15, 365–424.CrossRefGoogle Scholar
Macfie, J. W. S. & Thomson, J. G. (1929). A trypanosome of the canary (Serinus canarius Koch). Trans. R. Soc. Trop. Med. Hyg. 23, 5–6, and 185–91.CrossRefGoogle Scholar
Minchin, E. A. (1909). The structure of Trypanosoma lewisi in relation to microscopical technique. Quart. J. Micr. Sci. 53, 755–808.Google Scholar
Minchin, E. A. & Woodcock, H. M. (1912). Studies on avian haemoprotozoa. No. II. Observations on the trypanosome of the little owl (Athene noctua), with remarks on the other protozoan blood-parasites occurring in this bird. Quart. J. Micr. Sci. 57, 141–85.Google Scholar
Nöller, W. (1920). Die neueren Ergebnisse der Haemoproteus-Forschung. Zugleich vor-läufige Mitteilung über das Kreuzschnabel-trypanosoma und über Züchtungsversuche an einigen anderen Trypanosomen. Arch. Protistenk. 41, 149–68.Google Scholar
Poindexter, H. A. (1933). Observations on the defense mechanism in Trypanosoma equiperdum and Trypanosoma lewisi infections in guinea-pigs and rats. Amer. J. Trop. Med. 13, 555–75.CrossRefGoogle Scholar
Rao, V. G. (1951). Studies on the problem of amoebiasis, with special reference to the genesis of hepatic abscess in experimental infections with Entamoeba histolytica. Ph.D. Thesis in Faculty of Science, University of London.Google Scholar
Schaudinn, F. (1904). Generations- und Wirtswechsel bei Trypanosoma und Spirochaete. (Vorläufige Mitteilung.) Arb. Gesundh Amt., Berl., 20, 387–439.Google Scholar
Sergent, Ed. & ÉT. (1904). Évolution des hématozoaires de l'Athene noctua, d'après F. Schaudinn. Recherches expérimentales. C.R. 6éme Congrès International de Zoologie, Berne, pp. 384–8.Google Scholar
Sergent, Ed. & ÉT. (1905). Hémamibes des oiseaux et moustiques. ‘Générations alternantes’ de Schaudinn. C.R. Soc. Biol., Paris, 57, 57–9.Google Scholar
Shortt, H. E. & Coopeb, W. (1948). Staining of microscopical sections containing protozoal parasites by modification of McNamara's method. Trans. R. Soc. Trop. Med. Hyg. 41, 427–8.Google Scholar
Thiroux, A. (1905). Recherches morphologiques et expérimentales sur Trypanosoma paddae (Laveran et Mesnil). Ann. Inst. Pasteur, 19, 65–82.Google Scholar
Woodcock, H. M. (1910). Studies on avian haemoprotozoa. I. On certain parasites of the chaffinch (Fringilla coelebs) and the redpoll (Linota rufescens). Quart. J. Micr. Sci. 55 (N.S.), 641–740.Google Scholar
Woodcock, H. M. (1914). Studies on avian haemoprotozoa. III. Observations on the development of Trypanosoma noctuae (of the little owl) in Culex pipiens; with remarks on the other parasites occurring. Quart. J. Micr. Sci. 60 (N.S.), 399–433.Google Scholar