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Effect of the nematicide oxamyl on lipid utilization and infectivity in Globodera rostochiensis

Published online by Cambridge University Press:  06 April 2009

D. J. Wright ,
I. T. J. Roberts  and
S. G. Evans
D. J. Wright
Affiliation:
Department of Pure and Applied Biology, Imperial College Silwood Park, Ascot, Berks. SL5 7PY
I. T. J. Roberts
Affiliation:
Department of Pure and Applied Biology, Imperial College Silwood Park, Ascot, Berks. SL5 7PY
S. G. Evans
Affiliation:
Department of Pure and Applied Biology, Imperial College Silwood Park, Ascot, Berks. SL5 7PY
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Summary

At field rates (ca 0·1–10 μg active ingredient/ml), non-fumigant nematicides such as oxamyl do not kill plant-parasitic nematodes directly but act by impairing neuromuscular activity. The present study has shown that neutral lipid levels in 2nd-stage (infective) juveniles of Globodera rostochiensis, which had been incubated with the oximecarbamate nematicide oxamyl (1 μg a.i./ml) for between 8 and 35 days, were significantly (P < 0·05) greater when compared with controls maintained in water alone. The difference between treatments was found to be due principally to changes in the lipid content in the posterior half of the body which appears to act as the major long-term lipid store. When nematodes were allowed to recover for 72 h following incubation for 35 days with oxamyl, their infectivity was not significantly (P > 0·05) different from that of controls. This work is discussed in relation to the action of oxamyl and similar nematicides and to the use of controlled-release formulations as a means of increasing their efficacy.

Keywords

Globodera rostochiensisnematicideoxamyllipid utilization.
Type
Research Article
Information
Parasitology , Volume 98 , Issue 1 , February 1989 , pp. 151 - 154
Copyright
Copyright © Cambridge University Press 1989

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References

Bhatt, B. D. & Rohde, R. A. (1970). The influence of environmental factors on the respiration of plantparasitic nematodes. Journal of Nematology 2, 277–85.Google ScholarPubMed
Birtle, A. J. & Wright, D. J. (1983). Prospects for improving the efficiency of pesticides with slow release formulations. Aspects of Applied Biology 2, 65–73.Google Scholar
Byrd, D. W., Kirkpatrick, T. & Barker, K. R. (1983). An improved technique for clearing and staining plant tissues for detection of nematodes. Journal of Nematology 15, 142–5.Google Scholar
Croll, N. A. (1972). Energy utilization of infective Ancylostoma tubaeforme larvae. Parasitology 64, 355–68.CrossRefGoogle ScholarPubMed
Evans, S. G. & Wright, D. J. (1983). Effects of the nematicide oxamyl on life cycle stages of Globodera rostochiensis. Annals of Applied Biology 100, 511–19.CrossRefGoogle Scholar
Kort, J., Ross, H., Rumpenhorst, H. J. & Stone, A. R. (1978). An international scheme for identifying and classifying pathotypes of potato cyst nematodes Globodera rostochiensis and G. pallida. Nematologica 23, 333–9.CrossRefGoogle Scholar
Lee, D. L. & Atkinson, H. J. (1976). The Physiology of Nematodes, 2nd edn. London: Macmillan.CrossRefGoogle Scholar
Mccuffog, D. R., Plowman, N. & Anderson, T. P. (1984). Controlled release formulations of chlorpyrifos in a thermoplastic granule matrix. Proceedings of the 1984 British Crop Protection Conference, Pests and Diseases, pp. 429–436.Google Scholar
Ogunfowora, A. O. (1979). Factors affecting emergence, survival and infectivity of Meloidogyne naasi. Nematologica 24, 72–80.CrossRefGoogle Scholar
Reversat, G. (1981). Consumption of food reserves by starved second-stage juveniles of Meloidogyne javanica under conditions inducing osmobiosis. Nematologica 27, 207–14.CrossRefGoogle Scholar
Robinson, M. P., Atkinson, H. J. & Perry, R. N. (1985). The effect of delayed emergence on infectivity of juveniles of the potato cyst nematode Globodera rostochiensis. Nematologica 31, 171–8.Google Scholar
Storey, R. M. J. (1983). The initial neutral lipid reserves of juveniles of Globodera spp. Nematologica 29, 144–50.CrossRefGoogle Scholar
Storey, R. M. J. (1984). The relationship between neutral lipid reserves and infectivity for hatched and dormant juveniles of Globodera spp. Annals of Applied Biology 104, 511–20.CrossRefGoogle Scholar
Storey, R. M. J., Glazer, I. & Orion, D. (1982). Lipid utilisation by starved and anhydrobiotic individuals of Pratylenchus thornei. Nematologica 28, 373–8.Google Scholar
Van Gundy, S. D., Bird, A. F. & Wallace, H. R. (1967). Ageing and starvation in larvae of Meloidogyne javanica and Tylenchulus semipenetrans. Phytopathology 57, 559–71.Google Scholar
Wallace, H. R. (1968). Dynamics of nematode movement. Annual Review of Phytopathology 6, 91–114.CrossRefGoogle Scholar
Wright, D. J. (1981). Nematicides: mode of action and new approaches to chemical control. In Plant Parasitic Nematodes, vol. 3, (ed.Zuckerman, B. M. and Rohde, R. A.), pp. 421–49. New York: Academic Press.Google Scholar
Wright, D. J., Birtle, A. J. & Roberts, I. T. J. (1984). Triphasic locomotor response of a plant-parasitic nematode to avermectin: inhibition by the GABA antagonists bicuculline and picrotoxin. Parasitology 88, 365–82.CrossRefGoogle ScholarPubMed