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dc.contributor.authorGómez-Munoz, Neus
dc.contributor.authorVelázquez, Karelia
dc.contributor.authorVives, María C.
dc.contributor.authorRuiz-Ruiz, Susana
dc.contributor.authorPina, José A.
dc.contributor.authorFlores, Ricardo
dc.contributor.authorMoreno, Pedro
dc.contributor.authorGuerri, José
dc.date.accessioned2018-05-09T16:30:58Z
dc.date.available2018-05-09T16:30:58Z
dc.date.issued2017
dc.identifier.citationGomez-Muñoz, N., Velazquez, K., Vives, M. C., Ruiz-Ruiz, S., Antonio Pina, J., Flores, R. et al. (2017). The resistance of sour orange to citrus tristeza virus is mediated by both the salicylic acid and RNA silencing defence pathways. Molecular Plant Pathology, 18(9), 1253-1266.
dc.identifier.issn1464-6722
dc.identifier.urihttp://hdl.handle.net/20.500.11939/6047
dc.description.abstractCitrus tristeza virus (CTV) induces in the field the decline and death of citrus varieties grafted on sour orange (SO) rootstock, which has forced the use of alternative decline-tolerant rootstocks in affected countries, despite the highly desirable agronomic features of the SO rootstock. Declining citrus plants display phloem necrosis below the bud union. In addition, SO is minimally susceptible to CTV compared with other citrus varieties, suggesting partial resistance of SO to CTV. Here, by silencing different citrus genes with a Citrus leaf blotch virus-based vector, we have examined the implication of the RNA silencing and salicylic acid (SA) defence pathways in the resistance of SO to CTV. Silencing of the genes RDR1, NPR1 and DCL2/DCL4, associated with these defence pathways, enhanced virus spread and accumulation in SO plants in comparison with non-silenced controls, whereas silencing of the genes NPR3/NPR4, associated with the hypersensitive response, produced a slight decrease in CTV accumulation and reduced stunting of SO grafted on CTV-infected rough lemon plants. We also found that the CTV RNA silencing suppressors p20 and p23 also suppress the SA signalling defence, with the suppressor activity being higher in the most virulent isolates.
dc.language.isoen
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleThe resistance of sour orange to Citrus tristeza virus is mediated by both the salicylic acid and RNA silencing defence pathwaysen
dc.typearticle
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.entidadIVIACentro de Protección Vegetal y Biotecnología
dc.identifier.doi10.1111/mpp.12488
dc.identifier.url
dc.journal.abbreviatedTitle
dc.journal.issueNumber9
dc.journal.titleMolecular Plant Pathology
dc.journal.volumeNumber18
dc.page.final1266
dc.page.initial1253
dc.source.typeelectronico
dc.type.hasVersionpublishedVersion


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