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Intrauterine development of the microfilariae of Dipetalonema viteae

Published online by Cambridge University Press:  05 June 2009

D. S. Ellis
Affiliation:
London School of Hygiene and Tropical Medicine, Keppel Street, London WCIE 7HT
Rosemary Rogers
Affiliation:
London School of Hygiene and Tropical Medicine, Keppel Street, London WCIE 7HT
A. E. Bianco
Affiliation:
London School of Hygiene and Tropical Medicine, Keppel Street, London WCIE 7HT
D. A. Denham
Affiliation:
London School of Hygiene and Tropical Medicine, Keppel Street, London WCIE 7HT

Abstract

The egg shell of Dipetalonema viteae separated from the oolemma and became highly convoluted at an early stage of development. No second oolemma or trilaminate membrane was seen. Channels containing electron dense material (thought to be nutrient material from the uterine wall) were formed between adjacent embryos. Many developing embryos died.

Microvilli were formed by the uterine wall and developing embryos were closely apposed to these (again presumably to obtain nutrient).

Embryos emerged from the egg in the uterus and were born as unsheathed microfilariae.

Type
Reasearch Papers
Copyright
Copyright © Cambridge University Press 1978

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References

REFERENCES

Harada, R., Maeda, T., Nakashima, A., Sadakata, Y., Ando, M., Yonamine, K., Otsuji, Y. and Sato, H. (1970) Electron-microscopical studies on the mechanism of oogenesis and fertilization in Dirofilaria immitis. In Recent Advances in Researches on Filariasis and Schistosomiasis in Japan (ed M, Sasa) pp. 99121. University Park Press: Baltimore, Maryland and Manchester.Google Scholar
Kagei, N. (1960) Morphological studies on thread worm Filarioidea, Report 1. Morphological structure of Setaria cervi: Report 2. Microstructure of the body wall and uterus of adult S. cervi. Acta Medica University Kagoshima, 1, 142149 and 150157.Google Scholar
Lee, C-C. (1975) Dirofilaria immitis: Ultrastructural aspects of oocyte development and zygote formation. Experimental Parasitology, 37, (3), 449468.Google Scholar
McLaren, D. J. (1972) Ultrastrucutural studies on microfilariae (Nematoda, Filariodea). Parasitology, 65, 317332.Google Scholar
McLaren, D. J. (1973) Oogenesis and fertilization in Dipetalonema viteae (Nematoda: Filarioidea). Parasitology, 66, 465472.CrossRefGoogle Scholar
Rogers, R., Ellis, D. S. and Denham, D. A. (1976) Studies with Brugia pahangi. 14. Intrauterine development of the microfilaria and a comparison with other filarial species. Journal of Helminthology, 50, 251257.Google Scholar
Terry, A., Terry, R. J. and Worms, N. J. (1961) Dipetalonema witei, filarial parasite of the jird, Meriones libycus. II. The reproductive system, gametogenesis and development of the microfilaria. Journal of Parasitology, 47, 703711.Google Scholar