Plant-pathogen interactions within the esca disease complex

Detalhes bibliográficos
Autor(a) principal: Ingrá, Chiara
Data de Publicação: 2021
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/25447
Resumo: Mestrado em Engenharia de Viticultura e Enologia (Double degree) / Instituto Superior de Agronomia. Universidade de Lisboa / Faculdade de Ciências. Universidade do Porto
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spelling Plant-pathogen interactions within the esca disease complexgrapevine trunk diseasestresssecondary metabolitesphenolic compoundsphytoalexinsMestrado em Engenharia de Viticultura e Enologia (Double degree) / Instituto Superior de Agronomia. Universidade de Lisboa / Faculdade de Ciências. Universidade do PortoThis thesis presents an overview of the esca complex, a predominant grapevine trunk disease worldwide. Esca is one of the main causes of reduction of yield, plant decline and death of grapevines in most viticultural areas of the world. In recent years, research on esca has led to considerable progress in understanding the etiology, epidemiology and physiology of the disease and revealed its great complexity. This work covers the symptomatology in the trunk, leaves and berries, of each syndrome belonging to the esca complex and the characteristics of the different fungal species involved in the decline of the vine. Due to the effects of climate change, increasing attention is being paid to the impact that abiotic factors have on the development of plant diseases and on the mechanisms that can alter the relationship between pathogens and plants. Abiotic stresses, like drought or rainfall, can influence the tolerance or susceptibility of the plant to pathogens with consequences on plant-pathogen interactions, sometimes leading to a greater tendency to show symptoms, especially foliar ones. For this reason, this thesis compiles the available knowledge on the impact of host-pathogen-environment in the progress of the esca disease complex. To date, there is no certainty about the effects that abiotic factors have on plant-pathogen interaction but measurable evidences from several studies emphasize how they play a fundamental role in the definition of vine/pathogen interaction. Grapevines have developed a plethora of defence mechanisms to face pathogen attempts to attack and infect, which are activated as soon as they can detect their presence. Based on the available evidence we evaluated the ability of the plant to respond to biotic stresses through the production, locally or systematically, of defensive compounds derived from secondary metabolism, in particular phenolic compounds. Phytoalexins are the most prominent compounds that accumulate at the site of infection, reaching toxic concentrations for pathogens. Despite this, the role of phenolic compounds, including those that are synthesized constitutively, in the protection of plant against pathogens is not yet completely clear. The knowledge of plant-pathogen interaction can have useful implications in the determination of field infections and contribute to the development of new control strategies. In addition, if the plant’s innate defensive abilities could be stimulated, the use of fungicides could be reduced, along with the toxic effects for the environment, for man and for the plant.s.n.Ferreira, Ricardo BoavidaRepositório da Universidade de LisboaIngrá, Chiara2022-09-09T08:41:16Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/25447TID:203082150engIngrá, C. - Plant-pathogen interactions within the esca disease complex. Lisboa: ISA, 2021, 77 p.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:55:00Zoai:www.repository.utl.pt:10400.5/25447Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:09:19.097506Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Plant-pathogen interactions within the esca disease complex
title Plant-pathogen interactions within the esca disease complex
spellingShingle Plant-pathogen interactions within the esca disease complex
Ingrá, Chiara
grapevine trunk disease
stress
secondary metabolites
phenolic compounds
phytoalexins
title_short Plant-pathogen interactions within the esca disease complex
title_full Plant-pathogen interactions within the esca disease complex
title_fullStr Plant-pathogen interactions within the esca disease complex
title_full_unstemmed Plant-pathogen interactions within the esca disease complex
title_sort Plant-pathogen interactions within the esca disease complex
author Ingrá, Chiara
author_facet Ingrá, Chiara
author_role author
dc.contributor.none.fl_str_mv Ferreira, Ricardo Boavida
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Ingrá, Chiara
dc.subject.por.fl_str_mv grapevine trunk disease
stress
secondary metabolites
phenolic compounds
phytoalexins
topic grapevine trunk disease
stress
secondary metabolites
phenolic compounds
phytoalexins
description Mestrado em Engenharia de Viticultura e Enologia (Double degree) / Instituto Superior de Agronomia. Universidade de Lisboa / Faculdade de Ciências. Universidade do Porto
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01T00:00:00Z
2022-09-09T08:41:16Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/25447
TID:203082150
url http://hdl.handle.net/10400.5/25447
identifier_str_mv TID:203082150
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ingrá, C. - Plant-pathogen interactions within the esca disease complex. Lisboa: ISA, 2021, 77 p.
dc.rights.driver.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 s.n.
publisher.none.fl_str_mv s.n.
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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