Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-25T05:45:30.903Z Has data issue: false hasContentIssue false

*The Parasitological and Pathological Significance of Arrested Development in Nematodes

Published online by Cambridge University Press:  05 June 2009

E. L. Taylor
Affiliation:
Ministry of Agriculture, Weybridge, England
J. F. Michel
Affiliation:
Ministry of Agriculture, Weybridge, England

Extract

In summarising, therefore, we conclude that a tendency to become dormant during the larval stage, which is so characteristic a feature of the free-living larvae of parasitic nematodes and is an essential requirement in their use of intermediate hosts is not an uncommon occurrence during their life in the final host. Its purpose in each instance is essentially the same, i.e. to carry it through a period in which the environment is unsuited to development; on the ground, for instance, where it waits for a suitable host, as a parasite of an intermediate host, where it waits for a suitable final host, or in a resistant final host where inhibited development serves the parasite in enabling it to wait until some depression of the host's state of resistance allows it to grow to maturity.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1953

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Fulleborn, F., 1921.—“Ascarisinfektion durch Verzehren eingekapselter Larven und über gelungene intrauterine Ascarisinfektion”. Arch. Schiffs-u. Tropenhyg., 25, 367375. (W.L. 1804.)Google Scholar
Gordon, H. Mc. L., 1949.—“Phenothiazine and Oesophagostomiasis”. Vet. Rec, 61, 509510. (W.L. 22523.)Google Scholar
Kotlan, A., 1952.—“The development and pathological significance of the histotropic phase in parasitic nematodes”. Rep. XIVth Int. Vet. Cong. 1949, 2, 61—64.Google Scholar
Schillinger, J. E. and Cram, E. B., 1923.—“Parasitic infestation of dogs before birth”. J. Amer. vet. med. Ass., 63, 200203. (W.L. 11022.)Google Scholar
Scott, J. Allen, 1928.—“An experimental study of the development of Ancylostoma caninum in normal and abnormal hosts”. Amer. J. Hyg., 8, 158204. (W.L. 600a.)Google Scholar
Seurat, L. G., 1916.—“Contributions à l'étude des formes larvaires des nématodes parasites hétéroxènes”. Bull. sci. Fr. Belg., 49, 297377. (W.L. 4854.)Google Scholar
Sprent, J. F. A., 1952.—“On the migratory behaviour of the larvae of various Ascaris species in white mice”. J. infect. Dis., 90, 165176. (W.L. 11250.)CrossRefGoogle ScholarPubMed
Taylor, E. L., 1938.—“An extension to the known longevity of gapeworm infection in earthworm? and snails”. Vet. J., 94, 327328. (W.L. 22518.)Google Scholar