The novel elicitor COS‐OGA enhances potato resistance to late blight
Phytophthora infestans is the causal agent of potato late blight. This pathogen is usually controlled by fungicides, but new European regulations have imposed changes in crop protection management that have led to a search for alternative control measures. The induction of plant defence responses by...
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| Veröffentlicht in: | Plant pathology 2017-06, Vol.66 (5), p.818-825 |
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| creator | Clinckemaillie, A. Decroës, A. Aubel, G. Carrola dos Santos, S. Renard, M. E. Van Cutsem, P. Legrève, A. |
| description | Phytophthora infestans is the causal agent of potato late blight. This pathogen is usually controlled by fungicides, but new European regulations have imposed changes in crop protection management that have led to a search for alternative control measures. The induction of plant defence responses by elicitors is a promising new strategy compatible with sustainable agriculture. This study investigated the effect of eliciting a defence response in potato against P. infestans using a formulation of the COS‐OGA elicitor that combines cationic chitosan oligomers (COS) and anionic pectin oligomers (OGA). Trials were conducted under greenhouse conditions to assess the ability of COS‐OGA to control P. infestans. The results showed that three foliar applications with this elicitor significantly increased potato protection against late blight in controlled conditions. The activation of potato defence genes was also evaluated by RT‐qPCR during these trials. Two pathogenesis‐related proteins, basic PR‐1 and acidic PR‐2, were rapidly and significantly up‐regulated by the elicitor treatment. Therefore, these results suggest that the COS‐OGA elicitor increases the protection of potato against P. infestans and that this protection could be explained by an increase in the expression of potato defence genes rather than by biocide activity. |
| doi_str_mv | 10.1111/ppa.12641 |
| format | Article |
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E. ; Van Cutsem, P. ; Legrève, A.</creator><creatorcontrib>Clinckemaillie, A. ; Decroës, A. ; Aubel, G. ; Carrola dos Santos, S. ; Renard, M. E. ; Van Cutsem, P. ; Legrève, A.</creatorcontrib><description>Phytophthora infestans is the causal agent of potato late blight. This pathogen is usually controlled by fungicides, but new European regulations have imposed changes in crop protection management that have led to a search for alternative control measures. The induction of plant defence responses by elicitors is a promising new strategy compatible with sustainable agriculture. This study investigated the effect of eliciting a defence response in potato against P. infestans using a formulation of the COS‐OGA elicitor that combines cationic chitosan oligomers (COS) and anionic pectin oligomers (OGA). Trials were conducted under greenhouse conditions to assess the ability of COS‐OGA to control P. infestans. The results showed that three foliar applications with this elicitor significantly increased potato protection against late blight in controlled conditions. The activation of potato defence genes was also evaluated by RT‐qPCR during these trials. Two pathogenesis‐related proteins, basic PR‐1 and acidic PR‐2, were rapidly and significantly up‐regulated by the elicitor treatment. Therefore, these results suggest that the COS‐OGA elicitor increases the protection of potato against P. infestans and that this protection could be explained by an increase in the expression of potato defence genes rather than by biocide activity.</description><identifier>ISSN: 0032-0862</identifier><identifier>EISSN: 1365-3059</identifier><identifier>DOI: 10.1111/ppa.12641</identifier><language>eng</language><publisher>Oxford: Wiley Subscription Services, Inc</publisher><subject>Activation analysis ; Agricultural management ; Biocides ; Blight ; Chitosan ; Controlled conditions ; defence gene expression ; Foliar applications ; Fungicides ; Gene expression ; Genes ; Greenhouses ; induced resistance ; Late blight ; Oligomers ; Pathogenesis ; Pathogenesis-related proteins ; Pectin ; Phytophthora infestans ; plant defence elicitor ; Plant protection ; Potatoes ; Proteins ; Solanum tuberosum ; Sustainable agriculture ; Transcription activation</subject><ispartof>Plant pathology, 2017-06, Vol.66 (5), p.818-825</ispartof><rights>2016 British Society for Plant Pathology</rights><rights>Plant Pathology © 2017 British Society for Plant Pathology</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3321-280b0914cb85412b62f57ad4730e0950ff31d79015e6be199dee0432ae8bd6df3</citedby><cites>FETCH-LOGICAL-c3321-280b0914cb85412b62f57ad4730e0950ff31d79015e6be199dee0432ae8bd6df3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fppa.12641$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fppa.12641$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,27901,27902,45550,45551,46384,46808</link.rule.ids></links><search><creatorcontrib>Clinckemaillie, A.</creatorcontrib><creatorcontrib>Decroës, A.</creatorcontrib><creatorcontrib>Aubel, G.</creatorcontrib><creatorcontrib>Carrola dos Santos, S.</creatorcontrib><creatorcontrib>Renard, M. E.</creatorcontrib><creatorcontrib>Van Cutsem, P.</creatorcontrib><creatorcontrib>Legrève, A.</creatorcontrib><title>The novel elicitor COS‐OGA enhances potato resistance to late blight</title><title>Plant pathology</title><description>Phytophthora infestans is the causal agent of potato late blight. This pathogen is usually controlled by fungicides, but new European regulations have imposed changes in crop protection management that have led to a search for alternative control measures. The induction of plant defence responses by elicitors is a promising new strategy compatible with sustainable agriculture. This study investigated the effect of eliciting a defence response in potato against P. infestans using a formulation of the COS‐OGA elicitor that combines cationic chitosan oligomers (COS) and anionic pectin oligomers (OGA). Trials were conducted under greenhouse conditions to assess the ability of COS‐OGA to control P. infestans. The results showed that three foliar applications with this elicitor significantly increased potato protection against late blight in controlled conditions. The activation of potato defence genes was also evaluated by RT‐qPCR during these trials. Two pathogenesis‐related proteins, basic PR‐1 and acidic PR‐2, were rapidly and significantly up‐regulated by the elicitor treatment. Therefore, these results suggest that the COS‐OGA elicitor increases the protection of potato against P. infestans and that this protection could be explained by an increase in the expression of potato defence genes rather than by biocide activity.</description><subject>Activation analysis</subject><subject>Agricultural management</subject><subject>Biocides</subject><subject>Blight</subject><subject>Chitosan</subject><subject>Controlled conditions</subject><subject>defence gene expression</subject><subject>Foliar applications</subject><subject>Fungicides</subject><subject>Gene expression</subject><subject>Genes</subject><subject>Greenhouses</subject><subject>induced resistance</subject><subject>Late blight</subject><subject>Oligomers</subject><subject>Pathogenesis</subject><subject>Pathogenesis-related proteins</subject><subject>Pectin</subject><subject>Phytophthora infestans</subject><subject>plant defence elicitor</subject><subject>Plant protection</subject><subject>Potatoes</subject><subject>Proteins</subject><subject>Solanum tuberosum</subject><subject>Sustainable agriculture</subject><subject>Transcription activation</subject><issn>0032-0862</issn><issn>1365-3059</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kE1OwzAQhS0EEqWw4AaWWLFI67Hz52VV0YJUqZUoa8tJJjRViIPtgrrjCJyRk2AIW2YzmtE3740eIdfAJhBq2vd6AjyN4YSMQKRJJFgiT8mIMcEjlqf8nFw4t2cMEinzEVlsd0g784YtxbYpG28sna8fvz4-18sZxW6nuxId7Y3X3lCLrnH-Z0XD1GqPtGib552_JGe1bh1e_fUxeVrcbef30Wq9fJjPVlEpBIeI56xgEuKyyJMYeJHyOsl0FWeCIZMJq2sBVSbDc5gWCFJWiCwWXGNeVGlVizG5GXR7a14P6Lzam4PtgqWCPAhkwLMsULcDVVrjnMVa9bZ50faogKmfmFSISf3GFNjpwL43LR7_B9VmMxsuvgE7kWiH</recordid><startdate>201706</startdate><enddate>201706</enddate><creator>Clinckemaillie, A.</creator><creator>Decroës, A.</creator><creator>Aubel, G.</creator><creator>Carrola dos Santos, S.</creator><creator>Renard, M. 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E. ; Van Cutsem, P. ; Legrève, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3321-280b0914cb85412b62f57ad4730e0950ff31d79015e6be199dee0432ae8bd6df3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Activation analysis</topic><topic>Agricultural management</topic><topic>Biocides</topic><topic>Blight</topic><topic>Chitosan</topic><topic>Controlled conditions</topic><topic>defence gene expression</topic><topic>Foliar applications</topic><topic>Fungicides</topic><topic>Gene expression</topic><topic>Genes</topic><topic>Greenhouses</topic><topic>induced resistance</topic><topic>Late blight</topic><topic>Oligomers</topic><topic>Pathogenesis</topic><topic>Pathogenesis-related proteins</topic><topic>Pectin</topic><topic>Phytophthora infestans</topic><topic>plant defence elicitor</topic><topic>Plant protection</topic><topic>Potatoes</topic><topic>Proteins</topic><topic>Solanum tuberosum</topic><topic>Sustainable agriculture</topic><topic>Transcription activation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Clinckemaillie, A.</creatorcontrib><creatorcontrib>Decroës, A.</creatorcontrib><creatorcontrib>Aubel, G.</creatorcontrib><creatorcontrib>Carrola dos Santos, S.</creatorcontrib><creatorcontrib>Renard, M. E.</creatorcontrib><creatorcontrib>Van Cutsem, P.</creatorcontrib><creatorcontrib>Legrève, A.</creatorcontrib><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><jtitle>Plant pathology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Clinckemaillie, A.</au><au>Decroës, A.</au><au>Aubel, G.</au><au>Carrola dos Santos, S.</au><au>Renard, M. E.</au><au>Van Cutsem, P.</au><au>Legrève, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The novel elicitor COS‐OGA enhances potato resistance to late blight</atitle><jtitle>Plant pathology</jtitle><date>2017-06</date><risdate>2017</risdate><volume>66</volume><issue>5</issue><spage>818</spage><epage>825</epage><pages>818-825</pages><issn>0032-0862</issn><eissn>1365-3059</eissn><abstract>Phytophthora infestans is the causal agent of potato late blight. This pathogen is usually controlled by fungicides, but new European regulations have imposed changes in crop protection management that have led to a search for alternative control measures. The induction of plant defence responses by elicitors is a promising new strategy compatible with sustainable agriculture. This study investigated the effect of eliciting a defence response in potato against P. infestans using a formulation of the COS‐OGA elicitor that combines cationic chitosan oligomers (COS) and anionic pectin oligomers (OGA). Trials were conducted under greenhouse conditions to assess the ability of COS‐OGA to control P. infestans. The results showed that three foliar applications with this elicitor significantly increased potato protection against late blight in controlled conditions. The activation of potato defence genes was also evaluated by RT‐qPCR during these trials. Two pathogenesis‐related proteins, basic PR‐1 and acidic PR‐2, were rapidly and significantly up‐regulated by the elicitor treatment. Therefore, these results suggest that the COS‐OGA elicitor increases the protection of potato against P. infestans and that this protection could be explained by an increase in the expression of potato defence genes rather than by biocide activity.</abstract><cop>Oxford</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/ppa.12641</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Activation analysis Agricultural management Biocides Blight Chitosan Controlled conditions defence gene expression Foliar applications Fungicides Gene expression Genes Greenhouses induced resistance Late blight Oligomers Pathogenesis Pathogenesis-related proteins Pectin Phytophthora infestans plant defence elicitor Plant protection Potatoes Proteins Solanum tuberosum Sustainable agriculture Transcription activation |
| title | The novel elicitor COS‐OGA enhances potato resistance to late blight |
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