Growth of the Genital Primordium as a Marker to Describe a Time Course for the Heterogonic Larval Development in Strongyloides stercoralis

A time course for the heterogonic development of Strongyloides stercoralis is described and a method for distinguishing the early larval stages of this nematode is proposed. The number of cells in the developing gonad were counted at various time intervals of incubation, along with the percentage of...

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Bibliographic Details
Published in:The Journal of parasitology 2000-08, Vol.86 (4), p.882-883
Main Authors: Mark Lopez, P, Nolan, Thomas, Schad, G. A
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Body length
Feces
Fundamental and applied biological sciences. Psychology
Genitalia
Gonads
Gonads - growth & development
Hatching
Invertebrates
Larva - growth & development
Larval development
Life cycle. Embryology. Development
Molting
Nemathelminthia. Plathelmintha
Nematode larvae
Nematodes
Physiology. Development
RESEARCH NOTES
Somatic cells
Strongyloides stercoralis - growth & development
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Description
Summary:A time course for the heterogonic development of Strongyloides stercoralis is described and a method for distinguishing the early larval stages of this nematode is proposed. The number of cells in the developing gonad were counted at various time intervals of incubation, along with the percentage of larvae in molt at each interval. The time course of growth of the gonad follows a pattern comparable to that reported for body length in an idealized general nematode. A model for the heterogonic development of S. stercoralis is proposed, which, although similar to other nematode developmental models, is stage specific for S. stercoralis, allowing the otherwise morphologically similar rhabditiform stages (L1, L2) to be distinguished.
ISSN:0022-3395
1937-2345
DOI:10.1645/0022-3395(2000)086[0882:GOTGPA]2.0.CO;2