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The involvement of cytokinins in a host–parasite relationship between the tomato (Lycopersicon esculentum) and a nematode (Meloidogyne javanica)

Published online by Cambridge University Press:  06 April 2009

A. F. Bird  and
B. R. Loveys
A. F. Bird
Affiliation:
C.S.I.R.O., Institute of Biological Resources, Division of Horticultural Research, G.P.O. Box 350, Adelaide, South Australia 5001
B. R. Loveys
Affiliation:
C.S.I.R.O., Institute of Biological Resources, Division of Horticultural Research, G.P.O. Box 350, Adelaide, South Australia 5001
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Summary

The influence of Meloidogyne javanica on cytokinins in the host Lycopersicon esculentum has been studied at different stages of the nematode's life-cycle. Marked differences were detected in cytokinin content of root homogenates between infected and control plants, particularly at the 3rd (32 day), 4th (39 day) and 5th (55 day) harvests. Most of the cytokinin detected appeared to be associated with root homogenates in which the nematode was in the rapid post-moult growth stage. The influence of these nematodes on cytokinins in the host's xylem exudate was not nearly so pronounced. The freshly hatched 2nd-stage infective larvae of M. javanica were themselves capable of exuding cytokinin-like substances.

Type
Research Article
Information
Parasitology , Volume 80 , Issue 3 , June 1980 , pp. 497 - 505
Copyright
Copyright © Cambridge University Press 1980

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References

Bird, A. F. (1973). Observations on chromosomes and nucleoli in syncytia induced by Meloidogyne javanica. Physiological Plant Pathology 3, 387–91.CrossRefGoogle Scholar
Bird, A. F., Sauer, M. R., Chapman, B. N. & Loveys, B. R. (1980). The influence of light quality on the growth and fecundity of Meloidogyne in the tomato. Nematologia mediterranea (in the Press).Google Scholar
Brueske, C. H. & Bergeson, G. B. (1972). Investigation of growth hormones in xylem exudates and root tissue of tomato infected with root-knot nematode. Journal of Experimental Botany 23, 14–22.CrossRefGoogle Scholar
Dimalla, G. G. & van Staden, J. (1977). Cytokinins in the root-knot nematode, Meloidogyne incognita. Plant Science Letters 10, 25–9.CrossRefGoogle Scholar
Dropkin, V. H., Helgeson, J. P. & Upper, C. D. (1969). The hypersensitivity reaction of tomatoes resistant to Meloidogyne incognita: reversal by cytokinins. Journal of Nematology 1, 55–61.Google ScholarPubMed
Jones, M. G. K. & Paine, H. L. (1978). Early stages of nematode-induced giant-cell formation in roots of Impatiens balsamina. Journal of Nematology 10, 70–84.Google ScholarPubMed
Kende, H. (1971). The cytokinins. International Review of Cytology 31, 301–38.CrossRefGoogle ScholarPubMed
Kochba, J. & Samish, R. M. (1971). Effects of kinetin and 1-naphthylacetic acid on root-knot nematodes in resistant and susceptible peach rootstocks. Journal of the American Society of Horticultural Science 96, 458–61.CrossRefGoogle Scholar
Miller, C. O. (1965). Evidence for the natural occurrence of zeatin and derivatives: compounds from maize which promote cell division. Proceedings of the National Academy of Sciences 54, 1052–8.CrossRefGoogle ScholarPubMed
van Staden, J. & Dimalla, G. G. (1977). A comparison of the endogenous cytokinins in the roots and xylem exudate of nematode-resistant and susceptible tomato cultivars. Journal of Experimental Botany 28, 1351–6.CrossRefGoogle Scholar
Wareing, P. F. & Phillips, I. D. J. (1978). The Control of Growth and Differentiation in Plants. Oxford: Pergamon Press.Google Scholar