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The effect of irradiation on the susceptibility of Rhipicephalus appendiculatus ticks to Theileria parva infection

Published online by Cambridge University Press:  06 April 2009

A. S. Young ,
B. L. Leitch ,
A. D. Irvin  and
D. A. E. Dobbelaere
A. S. Young
Affiliation:
Veterinary Research Department, Kenya Agricultural Research Institute, Muguga, P.O. Box 32, Kikuyu, Kenya
B. L. Leitch
Affiliation:
Veterinary Research Department, Kenya Agricultural Research Institute, Muguga, P.O. Box 32, Kikuyu, Kenya
A. D. Irvin
Affiliation:
International Laboratory for Research on Animal Diseases, P.O. Box 30709, Nairobi, Kenya
D. A. E. Dobbelaere
Affiliation:
International Laboratory for Research on Animal Diseases, P.O. Box 30709, Nairobi, Kenya
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Summary

Irradiation doses of 800 rad. or less had no detectable effect on the subsequent development of unfed nymphal Rhipicephalus appendiculatus ticks. Doses of 1600 rad. or above impaired feeding and moulting and delayed the subsequent development of unfed nymphs. At 6400 rad. no ticks completed their moult. Unfed nymphal R. appendiculatus irradiated at 0, 400, 800 and 1600 rad. were applied to 3 cattle infected with T. parva (Kiambu 4). The Theileria infections in the salivary glands of the resultant adult ticks were assessed and it was found that irradiation doses of 800 rad. or less had little effect on the Theileria infections, but an–irradiation dose of 1600 rad. greatly reduced the level of infection. The numbers of salivary gland acini in ticks of this group were reduced but the percentage of infected acini was similar.

Type
Research Article
Information
Parasitology , Volume 82 , Issue 3 , June 1981 , pp. 473 - 479
Copyright
Copyright © Cambridge University Press 1981

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References

REFERENCES

Abramov, I. V. & Duranov, V. S. (1965). Effect of ionising radiation on Babesia ovis – the etiological agent of sheep babesiellosis. In Progress in Parasitology, Proceedings of the 2nd International Congress on Protozoology, London, pp. 178–9.Google Scholar
Bailey, K. P. (1960). Notes on the rearing of Rhipicephalus appendiculatus and their infection with Theileria parva for experimental transmission. Bulletin of Epizootic Diseases of Africa 8, 33–43.Google Scholar
Binnington, K. C. (1978). Sequential changes in salivary gland structure during attachment and feeding of the cattle tick, Boophilus microplus. International Journal for Parasitology 8, 97–115.Google Scholar
Blewett, D. A. & Branagan, D. (1973). The demonstration of Theileria parva infection in intact Rhipicephalus appendiculatus salivary glands. Tropical Animal Health and Production 5, 27–34.CrossRefGoogle Scholar
Burridge, M. J. & Kimber, C. D. (1972). The indirect fluorescent antibody test for experimental East Coast fever (Theileria parva infection of cattle). Evaluation of a cell culture schizont antigen. Research in Veterinary Science 13, 451–5.CrossRefGoogle ScholarPubMed
Chakhmatov, G. N. (1969). Etude de l'action des rayons ionisants sur les agents de la nuttalliose des souris et de la theileriose des bovides. Progress in Protozoology, Proceedings of the 3rd International Congress on Protozoology, Leningrad pp. 254–5.Google Scholar
Cunningham, M. P., Brown, C. G. D., Burridge, M. J., Musoke, A. J., Purnell, R. E. & Dargie, J. D. (1973). East Coast fever of cattle; 60Co-irradiation of infective particles of Theileria parva. Journal of Protozoology 20, 298–300.Google Scholar
Drummond, R. O., Medley, J. G. & Graham, O. H. (1966). Engorgement and reproduction of lone star ticks (Amblyomma americanum L.) treated with gamma irradiation. International Journal of Radiation Biology 10, 183–8.Google Scholar
Galun, R., Warburg, M. & Avivi, A. (1967). Studies on the application of the sterility method in the tick Ornithodorus tholozani. Entomologia experimentalis et applicata 10, 143–52.Google Scholar
Garnham, P. C. C. (1963). Factors influencing the development of Protozoa in their arthropodan hosts. In Host–Parasite Relationships in Invertebrate Hosts, (ed. Taylor, A. E. R.), pp. 33–50. Oxford: Blackwell Scientific Publications.Google Scholar
Irvin, A. D., Brocklesby, D. W. & Purnell, R. E. (1979). Radiation and isotopic techniques in the study and control of piroplasms of cattle: a review. Veterinary Parasitology 5, 17–28.CrossRefGoogle Scholar
Irvin, A. D., Boarer, C. D. H., Dobbelaere, D. A. E., Mahan, S. M., Masake, R. & Ocama, J. G. R. (1981). Monitoring Theileria parva infection in adult Rhipicephalus appendiculatu ticks. Parasitology 82, 137–47.Google Scholar
Irvin, A. D., Purnell, R. E., Brown, C. G. D., Cunningham, M. P., Ledger, M. A. & Payne, R. C. (1974). The application of an indirect method of infecting ticks with piroplasms for use in the isolation of field infections. British Veterinary Journal 130, 280–7.Google Scholar
Purnell, R. E. & Joyner, L. P. (1968). The development of Theileria parva in the salivary glands of the tick Rhipicephalus appendiculatus. Parasitology 58, 725–32.Google Scholar
Purnell, R. E., Dargie, J. D., Gilliver, B., Irvin, A. D. & Ledger, M. A. (1972 a). Some effects of irradiation on the tick Rhipicephalus appendiculatus. Parasitology 64, 429–40.Google Scholar
Purnell, R. E., Ledger, M. A. & Obatre, J. B. (1972 b). Some effects of irradiation on Theileria parva in the salivary glands of the tick Rhipicephalus appendiculatus. Parasitology 65, 23–6.Google Scholar
Purnell, R. E., Brown, C. G. D., Burridge, M. J., Cunningham, M. P., Emu, H., Irvin, A. D., Ledger, M. A., Njuguna, L. M., Payne, R. C. & Radley, D. E. (1974). East Coast fever: 60Co-irradiation of Theileria parva in its tick vector, Rhipicephalus appendiculatus. International Journal for Parasitology 4, 507–11.CrossRefGoogle ScholarPubMed
Schein, E., Warnecke, M. & Kirmse, P. (1977). Development of Theileria parva (Theiler, 1904) in the gut of Rhipicephalus appendiculatus (Neumann, 1901). Parasitology 75, 309–16.Google Scholar
Steel, R. G. D. & Torrie, J. H. (1960). Principles and Procedures of Statistics. New York: McGraw-Hill Book Company.Google Scholar
Till, W. M. (1961). A contribution to the anatomy and histology of the brown ear tick, Rhipicephalus appendiculatus Neumann. Memoirs of the Entomological Society of South Africa 6, 1–124.Google Scholar
Walker, A. R., McKellar, S. B., Bell, L. J. & Brown, C. G. D. (1979). Rapid quantitative assessment of Theileria infection in ticks. Tropical Animal Health and Production 11, 21–6.Google Scholar
Winston, R. W. & Bates, D. H. (1960). Saturated solutions for the control of humidity in biological research. Ecology 41, 232–6.Google Scholar
Young, A. S. & Leitch, B. L. (1980). A possible relationship between the development of Theileria species and the ecdysis of their host ticks. Journal of Parasitology 66, 356–9.Google Scholar
Young, A. S. & Leitch, B. L. (1981). The epidemiology of East Coast fever: some effects of temperature on the development of Theileria parva in its tick vector Rhipicephalus appendiculatus. Parasitology (in the Press).Google Scholar