Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 332982
Title Syncytium development: the result of a sophisticated manipulation of plant cells by cyst nematodes
Author(s) Goverse, A.; Karczmarek, A.; Pierzgalska, M.; Overmars, H.A.; Filipecki, M.; Bakker, J.; Helder, J.
Source In: Nematology Symposium abstracts Leiden : Brill Academic Publishers - p. 137 (044) - 138.
Department(s) Laboratory of Nematology
EPS-2
Publication type Abstract in scientific journal or proceedings
Publication year 2002
Abstract Potato cyst nematodes have evolved a sophisticated way to parasitise their host plants. They migrate intracellularly through the root, and an outer cortex cell is selected as a starting point for syncytium formation. The recruitment of plant cell wall-degrading enzymes by the nematode results in an expansion of the syncytium towards the vascular bundle via a so-called cortical bridge. A local accumulation of auxin is crucial for syncytium development.Analysis of cellulase expression patterns in tomato revealed that two auxin-inducible members (LECel7 and LE-Cel8) were speci¿ cally up-regulated during the onset of syncytium development. Intriguingly, nodule formation in legumes starts in the cortex, proliferates towards the stele and is also accompanied by a local accumulation of auxin. This process is preceded by the expression of ENOD40. To see whether this gene is also essential for syncytium development, the role of ENOD40 was investigated in the non-legumes tomato and Arabidopsis upon cyst nematode infection. To unravel the molecular mechanisms that underlie syncytium induction more thoroughly, a high throughput approach is needed. cDNA-AFLP was used to monitor the expression of auxin-regulated genes in cyst nematode-infected tomato roots, and some preliminary results will be presented.
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