Prevalence of enlarged salivary glands in wild populations of Glossina pallidipes in Kenya,with a note on the ultrastructure of the affected organ |
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Authors: | L.H. Otieno E.D. Kokwaro M. Chimtawi P. Onyango |
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Affiliation: | The International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya |
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Abstract: | Enlarged salivary gland was found to be widespread among wild populations of Glossina pallidipes in Kenya. The incidence of this abnormality varied from 0.9% in Meru National Park in Central Kenya to 5.4% in the Shimba hills area on the Kenya coast. Ultrastructurally, the enlarged glands were multinucleated with lumen reduced substantially in size. A large number of viruses filled both the lumen and the broken pieces of epithelial cytoplasm. In some cases Trypanosoma brucei trypanosomes were seen in the lumen of the enlarged glands. The epithelial cytoplasm was heavily vacuolated. Comment is made on the suitability of the diseased flies as transmitters of T. brucei. |
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Keywords: | Glossina pallidipes Trypanosoma brucei salivary gland, insect salivary gland, pathology of |
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