Mechanisms of resistance to viruses

Resistance associated with a hypersensitive response (HR) and subsequent development of necrotic lesions (cell death) at the sites of virus infection can restrict virus movement in plants. Genes for HR are dominant and act on a gene-for-gene basis. Many viral proteins triggering HR have been identif...

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Main Author: J.P.T. Valkonen
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2002-06-01
Series:Plant Protection Science
Subjects:
Online Access:https://pps.agriculturejournals.cz/artkey/pps-200210-0011_mechanisms-of-resistance-to-viruses.php
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author J.P.T. Valkonen
author_facet J.P.T. Valkonen
author_sort J.P.T. Valkonen
collection DOAJ
description Resistance associated with a hypersensitive response (HR) and subsequent development of necrotic lesions (cell death) at the sites of virus infection can restrict virus movement in plants. Genes for HR are dominant and act on a gene-for-gene basis. Many viral proteins triggering HR have been identified. Also, several genes for HR-based virus resistance, or virus-induced cell death without resistance, have been isolated and characterized in plants, which provides novel insights to the mechanisms of virus resistance. Another international, major research frontier has formed more recently around RNA silencing, a universal RNA surveillance system and inducible virus defence mechanism in multicellular organisms. Many viral proteins interfere with different phases of RNA silencing. The data provide novel insights to break-down of resistance in mixed virus infections (viral synergism), resistance to virus movement, and recovery of plants from virus infection.
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spelling doaj.art-bc1b570b5966478fbd28fa65e404ef832023-02-23T03:43:39ZengCzech Academy of Agricultural SciencesPlant Protection Science1212-25801805-93412002-06-0138SI 1 - 6th Conf EFPPS132S13510.17221/10337-PPSpps-200210-0011Mechanisms of resistance to virusesJ.P.T. Valkonen0Department of Plant Biology, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden, and Department of Applied Biology, University of Helsinki, FIN-00014 Helsinki, FinlandResistance associated with a hypersensitive response (HR) and subsequent development of necrotic lesions (cell death) at the sites of virus infection can restrict virus movement in plants. Genes for HR are dominant and act on a gene-for-gene basis. Many viral proteins triggering HR have been identified. Also, several genes for HR-based virus resistance, or virus-induced cell death without resistance, have been isolated and characterized in plants, which provides novel insights to the mechanisms of virus resistance. Another international, major research frontier has formed more recently around RNA silencing, a universal RNA surveillance system and inducible virus defence mechanism in multicellular organisms. Many viral proteins interfere with different phases of RNA silencing. The data provide novel insights to break-down of resistance in mixed virus infections (viral synergism), resistance to virus movement, and recovery of plants from virus infection.https://pps.agriculturejournals.cz/artkey/pps-200210-0011_mechanisms-of-resistance-to-viruses.phpvirus resistancegene-for-gene interactionrna silencing
spellingShingle J.P.T. Valkonen
Mechanisms of resistance to viruses
Plant Protection Science
virus resistance
gene-for-gene interaction
rna silencing
title Mechanisms of resistance to viruses
title_full Mechanisms of resistance to viruses
title_fullStr Mechanisms of resistance to viruses
title_full_unstemmed Mechanisms of resistance to viruses
title_short Mechanisms of resistance to viruses
title_sort mechanisms of resistance to viruses
topic virus resistance
gene-for-gene interaction
rna silencing
url https://pps.agriculturejournals.cz/artkey/pps-200210-0011_mechanisms-of-resistance-to-viruses.php
work_keys_str_mv AT jptvalkonen mechanismsofresistancetoviruses