Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2015000200007 |
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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Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânicacharcoal cankercork oakintraspecific variabilityNodulisporium spBiscogniauxia 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.Sociedade de Ciências Agrárias de Portugal2015-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2015000200007Revista de Ciências Agrárias v.38 n.2 2015reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2015000200007Henriques,JoanaNóbrega,FilomenaSousa,EdmundoLima,Arlindoinfo:eu-repo/semantics/openAccess2024-02-06T17:02:06Zoai:scielo:S0871-018X2015000200007Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:17:18.745012Repositório 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 |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
title |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
spellingShingle |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica Henriques,Joana charcoal canker cork oak intraspecific variability Nodulisporium sp |
title_short |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
title_full |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
title_fullStr |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
title_full_unstemmed |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
title_sort |
Diversidade morfológica e genética de Biscogniauxia mediterranea associada a Quercus suber na bacia mediterrânica |
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 |
charcoal canker cork oak intraspecific variability Nodulisporium sp |
topic |
charcoal canker cork oak intraspecific variability Nodulisporium sp |
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 |
2015 |
dc.date.none.fl_str_mv |
2015-06-01 |
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 |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2015000200007 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2015000200007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2015000200007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
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 |
Revista de Ciências Agrárias v.38 n.2 2015 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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1799137267543965696 |