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A comparative study of the movement of some microphagous, plant-parasitic and animal-parasitic nematodes

Published online by Cambridge University Press:  06 April 2009

H. R. Wallace  and
C. C. Doncaster
H. R. Wallace
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts.
C. C. Doncaster
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts.
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Extract

Ciné film and direct observation showed that microphagous, plant and animal nematodes have the same basic wave pattern when moving. Their speed is linearly related to the product of their length and wave frequency during unrestricted movement in deep water. The speed, wave pattern and frequency of the plant nematode Ditylenchus dipsaci and the animal nematode Trichostrongylus colubriformis changed in a similar way in response to changes in water film thickness on the surface of agar of different concentrations. T. colubriformis like D. dipsaci were most mobile in a sand-water medium at a suction corresponding to the stage when most of the water has drained from the pores. The optimum temperature for activity of T. colubriformis and D. dipsaci was about 20° C. and both survived desiccation at 50% relative humidity and 24° C. for 32 days. T. colubriformis was attracted to and aggregated around grass roots (Phleum pratense). The results suggest that the free-living stages of microphagous, plant parasitic and animal parasitic nematodes move similarly and that nematodes can be divided arbitrarily into three groups: (1) those active enough to swim in deep water; (2) those able to swim in thick water films, escape from the soil and ascend plants above ground level; and (3) those too inactive to swim, the crawlers, which are largely confined to the soil. The habitat of free-living stages of nematodes, irrespective of their host or feeding habits, is probably related to their propulsive power.

We thank Dr D. Poynter for supplying the animal parasites used.

Type
Research Article
Information
Parasitology , Volume 54 , Issue 2 , May 1964 , pp. 313 - 326
Copyright
Copyright © Cambridge University Press 1964

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References

REFERENCES

Bird, A. F. (1962). Orientation of the larvae of Meloidogyne javanica relative to roots. Nematologica, 8, 275–87.CrossRefGoogle Scholar
Crofton, H. D. (1954). The vertical migration of infective larvae of strongyloid nematodes. J. Helminth. 28, 35–52.CrossRefGoogle ScholarPubMed
Goodey, T. (1922). Observations on the ensheathed larvae of some parasitic nematodes. Ann. appl. Biol. 9, 33–48.CrossRefGoogle Scholar
Gray, J. (1953). Undulatory propulsion. Quart. J. micr. Sci. 94, 551–78.Google Scholar
Henderson, V. E. & Katznelson, H. (1961). The effect of plant roots on the nematode population of the soil. Can. J. Microbiol. 7, 163–7.CrossRefGoogle ScholarPubMed
Lavallee, W. H. & Rohde, R. A. (1962). Attractiveness of plant roots to Pratylenchus penetrans (Cobb). Nematologica, 8, 252–60.Google Scholar
Robinson, J., Poynter, D. & Terry, R. J. (1962). The role of the fungus Pilobolus in the spread of the infective larvae of Dictyocaulus viviparus. Parasitology, 52, 17–18P.Google Scholar
Stewart, M. A. & Douglas, J. R. (1938). Studies on the bionomics of Trichostrongylus axei (Cobbold) and its seasonal influence on irrigated pastures. Parasitology, 30, 477–90.CrossRefGoogle Scholar
Wallace, H. R. (1958 a). Movement of eelworms. I. The influence of pore size and moisture content of the soil on the migration of larvae of the beet eelworm, Heterodera schachtii Schmidt. Ann. appl. Biol. 46, 74–85.CrossRefGoogle Scholar
Wallace, H. R. (1958 b). Movement of eelworms. II. A comparative study of the movement in soil of Heterodera schachtii Schmidt and of Ditylenchus dipsaci (Kühn) Filipjev. Ann. appl. Biol. 46, 86–94.CrossRefGoogle Scholar
Wallace, H. R. (1958 c). Movement of eelworms. III. The relationship between eelworm length, activity and mobility. Ann. appl. Biol. 46, 662–8.CrossRefGoogle Scholar
Wallace, H. R. (1959). The movement of eelworms in water films. Ann. appl. Biol. 47, 366–70.CrossRefGoogle Scholar
Wallace, H. R. (1960). Movement of eelworms. VI. The influence of soil type, moisture gradients and host plant roots on the migration of the potato root eelworm, Heterodera rostochiensis Wollenweber. Ann. appl. Biol. 48, 107–20.CrossRefGoogle Scholar
Wallace, H. R. (1961). The bionomics of the free-living stages of zoo-parasitic and phyto-parasitic nematodes—a critical survey. Helminth. Abstr. 30, 1–22.Google Scholar
Wallace, H. R. (1962). Observations on the behaviour of Ditylenchus dipsaci in soil. Nematologica, 7, 91–101.CrossRefGoogle Scholar
Wallace, H. R. & Greet, D. N. (1964). Observations on the taxonomy and biology of Tylenchorhynchus macrurus (Goodey, 1932) Filipjev, 1936 and Tylenchorhynchus icarus sp.nov. Parasitology, 54. 129–44.CrossRefGoogle Scholar