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Changes in gene expression during stimulation and hatching of the potato cyst nematode Globodera rostochiensis

Published online by Cambridge University Press:  01 March 1997

J. T. JONES
Affiliation:
Department of Nematology, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA
L. ROBERTSON
Affiliation:
Department of Nematology, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA
R. N. PERRY
Affiliation:
Entomology and Nematology Department, IACR-Rothamsted, Harpenden, Herts AL5 2JQ
W. M. ROBERTSON
Affiliation:
Department of Nematology, Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA

Abstract

The potato cyst nematode (PCN) Globodera rostochiensis, like other parasitic nematodes, needs to synchronize its life-cycle with that of its host. This synchrony is achieved by the invasive-stage juvenile remaining dormant within its egg until stimulated to hatch by the presence of root diffusates of its host. Root diffusates may induce changes in gene expression in PCN, some of which may be important in the transition to a parasitic mode of existence. We have used a range of techniques including differential display to examine gene expression during stimulation and hatching of PCN. We find that few changes in gene expression appear to be induced directly by root diffusates. Instead, changes in gene expression seem to occur during or immediately after the hatching process. These results are discussed in the context of the host–parasite relationship.

Type
Research Article
Copyright
1997 Cambridge University Press

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