Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees

Beyond Xylella, Integrated Management Strategies for Mitigating Xylella fastidiosa Impact in Europe (BeXyl) (Grant Agreement 101060593). Partner/Coordinador principal: Blanca B. Landa del Castillo, Investigadora Científica del Instituto de Agricultura Sostenible (IAS-CSIC).

Detalles Bibliográficos
Autores: Zecharia, Noa, Miri, Vanunu, Dror, Orit, Hatib, Kamel, Holland, Doron, Dani, Shtienberg, Bahar, Ofir
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/386200
Acceso en línea:http://hdl.handle.net/10261/386200
https://api.elsevier.com/content/abstract/scopus_id/85197338649
Access Level:acceso abierto
Palabra clave:Seasonal distribution
Xylella fastidiosa
Almond
Almond leaf scorch
Diagnostics
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spelling Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond TreesZecharia, NoaMiri, VanunuDror, OritHatib, KamelHolland, DoronDani, ShtienbergBahar, OfirSeasonal distributionXylella fastidiosaAlmondAlmond leaf scorchDiagnosticsBeyond Xylella, Integrated Management Strategies for Mitigating Xylella fastidiosa Impact in Europe (BeXyl) (Grant Agreement 101060593). Partner/Coordinador principal: Blanca B. Landa del Castillo, Investigadora Científica del Instituto de Agricultura Sostenible (IAS-CSIC).This research focused on studying the dynamics of the bacterial pathogen Xylella fastidiosa in almond trees across different developmental stages. The objective was to understand the seasonal distribution and concentration of X. fastidiosa within almond trees. Different tree organs, including leaves, shoots, branches, fruits, flowers, and roots, from 10 X. fastidiosa-infected almond trees were sampled over 2 years. The incidence and concentration of X. fastidiosa were determined using qPCR and isolation. Throughout the study, X. fastidiosa was consistently absent from fruits, flowers, and roots, whereas it was detected in leaves as well as in shoots and branches. We demonstrate that the absence of X. fastidiosa in the roots is likely linked to the inability of this isolate to infect the peach-almond hybrid rootstock GF677. X. fastidiosa incidence in shoots and branches remained consistent throughout the year, whereas in leaf petioles, it varied across developmental stages, with lower detection during the early and late stages of the season. Similarly, viable X. fastidiosa cells were isolated from shoots and branches at all developmental stages, but no successful isolations were achieved from leaf petioles during the vegetative and nut growth stage. Studying the progression of almond leaf scorch symptoms in trees with initial infections showed that once symptoms emerged on one branch, symptomless branches were likely already infected by the bacterium. Therefore, selectively pruning symptomatic branches is unlikely to cure the tree. This study enhances our understanding of X. fastidiosa dynamics in almond trees and may have practical applications for its detection and control.Support was provided by the Chief Scientist of the Ministry of Agriculture and Rural Development of Israel and the Fruit Council (grant 20-02-0115) and by BeXyl project (Beyond Xylella, Integrated Management Strategies for Mitigating Xylella fastidiosa Impact in Europe; grant 101060593, from European Union's Horizon Europe “Food, Bioeconomy Natural Resources, Agriculture and Environment” Programme.Peer reviewedAmerican Phytopathological SocietyEuropean CommissionMinistry of Agriculture and Rural Development (Israel)202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/386200https://api.elsevier.com/content/abstract/scopus_id/85197338649reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/HE/101060593https://doi.org/10.1094/PHYTO-07-23-0240-RNoinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3862002026-05-22T06:33:51Z
dc.title.none.fl_str_mv Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
title Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
spellingShingle Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
Zecharia, Noa
Seasonal distribution
Xylella fastidiosa
Almond
Almond leaf scorch
Diagnostics
title_short Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
title_full Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
title_fullStr Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
title_full_unstemmed Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
title_sort Seasonal Dynamics and Distribution of Xylella fastidiosa in Infected Almond Trees
dc.creator.none.fl_str_mv Zecharia, Noa
Miri, Vanunu
Dror, Orit
Hatib, Kamel
Holland, Doron
Dani, Shtienberg
Bahar, Ofir
author Zecharia, Noa
author_facet Zecharia, Noa
Miri, Vanunu
Dror, Orit
Hatib, Kamel
Holland, Doron
Dani, Shtienberg
Bahar, Ofir
author_role author
author2 Miri, Vanunu
Dror, Orit
Hatib, Kamel
Holland, Doron
Dani, Shtienberg
Bahar, Ofir
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministry of Agriculture and Rural Development (Israel)
dc.subject.none.fl_str_mv Seasonal distribution
Xylella fastidiosa
Almond
Almond leaf scorch
Diagnostics
topic Seasonal distribution
Xylella fastidiosa
Almond
Almond leaf scorch
Diagnostics
description Beyond Xylella, Integrated Management Strategies for Mitigating Xylella fastidiosa Impact in Europe (BeXyl) (Grant Agreement 101060593). Partner/Coordinador principal: Blanca B. Landa del Castillo, Investigadora Científica del Instituto de Agricultura Sostenible (IAS-CSIC).
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/386200
https://api.elsevier.com/content/abstract/scopus_id/85197338649
url http://hdl.handle.net/10261/386200
https://api.elsevier.com/content/abstract/scopus_id/85197338649
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/HE/101060593
https://doi.org/10.1094/PHYTO-07-23-0240-R
No
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Phytopathological Society
publisher.none.fl_str_mv American Phytopathological Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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