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 431430
Title Phytophthora capsici-Arabidopsis, a model pathosystem for studying the role of lectin receptor kinases in Phytophthora disease resistance
Author(s) Wang, Y.; Bouwmeester, K.; Shan, W.; Govers, F.
Source In: Book of Abstracts Oomycete Molecular Genetics Network (OMGN), Nanjing, P.R. China, 26-28 May 2012. - - p. 25 - 25.
Event Oomycete Molecular Genetics Network (OMGN), 2012-05-26/2012-05-28
Department(s) Laboratory of Phytopathology
Publication type Abstract in scientific journal or proceedings
Publication year 2012
Abstract The oomycete pathogen Phytophthora capsici is able to infect a wide range of plants and causes extensive losses in Solanum and Cucurbita crop plants. To better understand the interactions between P. capsici and its host plants, information gained from model pathosystems will be instrumental. Here, we describe a novel pathosystem between P. capsici and Arabidopsis. We screened a large collection of Arabidopsis accessions with several isolates of P. capsici, and found interaction specificity among isolateaccession combinations. In compatible interactions, appressorium-mediated penetration was followed by formation of invasive hyphae, haustoria and sporulation on leaves and roots. In contrast, in incompatible interactions, Arabidopsis activated defense responses including callose deposition, strong accumulation of H2O2 and O2- and cell death resulting in early pathogen encasement. Defense-related genes involved in camaelxin and indole-glucosinolate pathways were strongly induced upon infection by P. capsici. Moreover, mutants impaired in these pathways showed compromised resistance to P. capsici. Previously, an Arabidopsis legume-like lectin receptor kinase (LecRK), LecRK-I.9, was identified to be essential for Phytophthora resistance. LecRK-I.9 is a member of a family consisting of 45 genes. How other family members contribute to oomycete disease resistance is not yet known. The Phytophthora capsici- Arabidopsis pathosystem will be used for functional characterization of LecRK genes.
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