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Distribution of cobalt in parasitic helminths

Published online by Cambridge University Press:  05 June 2009

N. Chowdhury  and
R. Singh
N. Chowdhury
Affiliation:
Punjab Agricultural University, Department of Veterinary Parasitology, College of Veterinary Science, Ludhiana 141004, Punjab, India
R. Singh
Affiliation:
Punjab Agricultural University, Department of Veterinary Parasitology, College of Veterinary Science, Ludhiana 141004, Punjab, India
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Abstract

The distribution of cobalt in parasitic helminths belonging to the trematodes, cestodes or nematodes was determined by the use of an atomic absorption spectrophotometer. The results of these analyses have demonstrated that growing trematodes (smaller forms) with active oogenesis and spermatogenesis contained more cobalt than older forms (large or very old adults) with empty uteri and large lobulated testes. In cestodes, the neck region of cysticerci and immature proglottids of adults showed more cobalt than the cyst portion of cysticerci and hydatid or mature and gravid proglottids of worms. Similarly, the youngest endogenous daughter cysts of Echinococcus granulosus showed more cobalt in their walls than those of larger forms. The element was found more concentrated in nematode eggs than in adult females, irrespective of species of host.

Type
Research Note
Information
Journal of Helminthology , Volume 69 , Issue 3 , September 1995 , pp. 259 - 261
Copyright
Copyright © Cambridge University Press 1995

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