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Flight muscle ultrastructure of susceptible and refractory mosquitoes parasitized by larval Brugia pahangi

Published online by Cambridge University Press:  06 April 2009

M. J. Lehane  and
B. R. Laurence
M. J. Lehane
Affiliation:
Department of Entomology, London School of Hygiene and Tropical Medicine, Keppel Street, (Gower Street), London WC1E 7HT
B. R. Laurence
Affiliation:
Department of Entomology, London School of Hygiene and Tropical Medicine, Keppel Street, (Gower Street), London WC1E 7HT
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Extract

On parasitization with larval Brugia pahangi the infected flight muscle fibres of ‘resistant’ Anopheles labranchiae atroparvus undergo the following ultrastructural changes. The fibres become almost totally devoid of glycogen, their sarcoplasmic reticulum becomes elongate and closely associated with muscle fibrils. These fibrils degenerate and vesicles appear both within the degenerate fibril and within elements of the sarcoplasmic reticulum. Vesicles accumulate around the worm and degenerate to a uniform mass which eventually becomes melanized from its inner edge (next to the parasite) outwards.

The infected flight muscle fibres of both ‘resistant’ Aedes aegypti and ‘susceptible’ Aedes togoi are almost totally devoid of glycogen granules, but show no other ultrastructural change from the uninfected state.

Type
Research Article
Information
Parasitology , Volume 74 , Issue 1 , February 1977 , pp. 87 - 92
Copyright
Copyright © Cambridge University Press 1977

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