Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.19084/rca.16910 |
Resumo: | Biscogniauxia mediterranea is a widespread fungus that causes charcoal disease on cork oak and other hardwood hosts. It had been considered a secondary pathogen causing the disease only in stressed hosts. However, its frequency and severity have been increasing, inclusive in young trees without other decline signs and developing atypical symptoms. The present work aims to assess the fungus' variability in the Mediterranean basin, following cork oak geographical distribution. A collection of 36 isolates originated from cork oak in Portugal and other Mediterranean countries, from other hosts and from trees with different ages and disease expression were analyzed by cultural characteristics, conidial dimensions, and growth rates at different temperatures and by microsatellite-primed PCR profiles. Clustering UPGMA analyses combining different parameters were preformed. All the approaches revealed high level of intraspecific polymorphism among Mediterranean isolates, not allowing relating the disease development with any analyzed features. The results highlighted the variability of this fungus that induces its adaptation ability in the present worrying scenario of climatic change. All the conditions are gathered to favor the aggravation of the disease in cork oak stands. |
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Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean BasinDiversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânicaGeralBiscogniauxia mediterranea is a widespread fungus that causes charcoal disease on cork oak and other hardwood hosts. It had been considered a secondary pathogen causing the disease only in stressed hosts. However, its frequency and severity have been increasing, inclusive in young trees without other decline signs and developing atypical symptoms. The present work aims to assess the fungus' variability in the Mediterranean basin, following cork oak geographical distribution. A collection of 36 isolates originated from cork oak in Portugal and other Mediterranean countries, from other hosts and from trees with different ages and disease expression were analyzed by cultural characteristics, conidial dimensions, and growth rates at different temperatures and by microsatellite-primed PCR profiles. Clustering UPGMA analyses combining different parameters were preformed. All the approaches revealed high level of intraspecific polymorphism among Mediterranean isolates, not allowing relating the disease development with any analyzed features. The results highlighted the variability of this fungus that induces its adaptation ability in the present worrying scenario of climatic change. All the conditions are gathered to favor the aggravation of the disease in cork oak stands.Biscogniauxia mediterranea é o fungo responsável pela doença do carvão do entrecasco em sobreiro e outros hospedeiros lenhosos. Tem sido considerado um patogénio secundário que causa doença apenas em hospedeiros debilitados. No entanto, a sua frequência e nocividade têm vindo a aumentar, inclusive em árvores jovens sem outros sinais de declínio e desenvolvendo sintomas atípicos. Este trabalho tem como objetivo avaliar a variabilidade do fungo na bacia mediterrânica, seguindo a distribuição geográfica sobreiro. Uma coleção de 36 isolados provenientes do sobreiro em Portugal e noutros países do Mediterrâneo, de outros hospedeiros e de árvores com diferentes idades e expressão da doença foram analisadas de acordo com as suas características culturais, dimensões de conídios, taxas de crescimento em diferentes temperaturas e por perfis de microsatellite-primed PCR. Foram realizadas análises de clusters UPGMA com diferentes parâmetros. Todas as abordagens revelaram elevado grau de polimorfismo intraespecífico entre os isolados, não permitindo relacionar o desenvolvimento da doença com as características analisadas. Estes resultados evidenciaram a variabilidade do fungo que induz a sua capacidade de adaptação no atual e preocupante cenário de alterações climáticas. Todas as condições estão reunidas para favorecer o agravamento da doença no montado.Sociedade de Ciências Agrárias de Portugal2019-01-23T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://doi.org/10.19084/rca.16910eng2183-041X0871-018XHenriques, JoanaNóbrega, FilomenaSousa, EdmundoLima, Arlindoinfo: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:RCAAP2022-09-06T09:25:02Zoai:ojs.revistas.rcaap.pt:article/16910Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:31:10.142881Repositório 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 |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
title |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin |
spellingShingle |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin Henriques, Joana Geral |
title_short |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin |
title_full |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin |
title_fullStr |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin |
title_full_unstemmed |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin |
title_sort |
Morphological and genetic diversity of Biscogniauxia mediterranea associated to Quercus suber in the Mediterranean Basin |
author |
Henriques, Joana |
author_facet |
Henriques, Joana Nóbrega, Filomena Sousa, Edmundo Lima, Arlindo |
author_role |
author |
author2 |
Nóbrega, Filomena Sousa, Edmundo Lima, Arlindo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Henriques, Joana Nóbrega, Filomena Sousa, Edmundo Lima, Arlindo |
dc.subject.por.fl_str_mv |
Geral |
topic |
Geral |
description |
Biscogniauxia mediterranea is a widespread fungus that causes charcoal disease on cork oak and other hardwood hosts. It had been considered a secondary pathogen causing the disease only in stressed hosts. However, its frequency and severity have been increasing, inclusive in young trees without other decline signs and developing atypical symptoms. The present work aims to assess the fungus' variability in the Mediterranean basin, following cork oak geographical distribution. A collection of 36 isolates originated from cork oak in Portugal and other Mediterranean countries, from other hosts and from trees with different ages and disease expression were analyzed by cultural characteristics, conidial dimensions, and growth rates at different temperatures and by microsatellite-primed PCR profiles. Clustering UPGMA analyses combining different parameters were preformed. All the approaches revealed high level of intraspecific polymorphism among Mediterranean isolates, not allowing relating the disease development with any analyzed features. The results highlighted the variability of this fungus that induces its adaptation ability in the present worrying scenario of climatic change. All the conditions are gathered to favor the aggravation of the disease in cork oak stands. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-23T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://doi.org/10.19084/rca.16910 |
url |
https://doi.org/10.19084/rca.16910 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2183-041X 0871-018X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
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 |
repository.mail.fl_str_mv |
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1799130177653964800 |