Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/17139 https://doi.org/file:///C|/Users/frei/AppData/Local/Microsoft/Windows/Temporary%20Internet%20Files/Content.Outlook/KFYT8LM9/dx.doi.org/10.1016/j.micres.2015.12.001 https://doi.org/10.1016/j.micres.2015.12.001 |
Resumo: | Fungi naturally present in olive trees were identified and tested for their antagonistic potential against Colletotrichum acutatum. A total of 14 isolates were identified, 12 belonged to genera Alternaria, Epicoccum, Fusarium, Aspergillus, Anthrinium, Chaetomium, Diaporthe, Nigrospora, one to family Xylariaceae and one was unclassified. All fungal isolates showed some inhibitory action over the growth of C. acutatum during dual culture growth, however, when agar-diffusible tests were performed only five fungal isolates caused C. acutatum growth inhibition: Alternaria sp. isolate 2 (26.8%), the fungus from Xylariaceae family (14.3%), Alternaria sp. isolate 1 (10.7%); Diaporthe sp. (10.7%), Nigrospora oryzae (3.5%). Volatile substances produced by these isolates were identified through gas-chromatography techniques, as phenylethyl alcohol, 4-methylquinazoline, benzothiazole, benzyl alcohol, lilial, galaxolide, among others. These inhibitory volatiles could play a significant role in reduction of C. acutatum expansion in olive and their study as potential biocontrol agents should be further explored. |
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Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatumOleae europaeaColletotrichum acutatumbiological controlantagonisticFungi naturally present in olive trees were identified and tested for their antagonistic potential against Colletotrichum acutatum. A total of 14 isolates were identified, 12 belonged to genera Alternaria, Epicoccum, Fusarium, Aspergillus, Anthrinium, Chaetomium, Diaporthe, Nigrospora, one to family Xylariaceae and one was unclassified. All fungal isolates showed some inhibitory action over the growth of C. acutatum during dual culture growth, however, when agar-diffusible tests were performed only five fungal isolates caused C. acutatum growth inhibition: Alternaria sp. isolate 2 (26.8%), the fungus from Xylariaceae family (14.3%), Alternaria sp. isolate 1 (10.7%); Diaporthe sp. (10.7%), Nigrospora oryzae (3.5%). Volatile substances produced by these isolates were identified through gas-chromatography techniques, as phenylethyl alcohol, 4-methylquinazoline, benzothiazole, benzyl alcohol, lilial, galaxolide, among others. These inhibitory volatiles could play a significant role in reduction of C. acutatum expansion in olive and their study as potential biocontrol agents should be further explored.Inalentejo ALENT-07-0324- FEDER-001747, OPERAC¸ ÃO: Gestão Integrada da Protec¸ ão do Olival Alentejano. Contributos para o seu desenvolvimento e implementac¸ ão. Carla Marisa R. Varanda is recipient of a PhD fellowship from Fundac¸ ão para a Ciência e a Tecnologia (FCT), SFRH/BPD/76194/2011, financed by QREN – POPH – Typology 4.1—co-financed by MES national funding and the European Social Fund. This work has been supported by FEDER and National funds, through the Programa Operacional Regional do Alentejo (InAlentejo) Operation ALENT-07-0262-FEDER-001871/Laboratório de Biotecnologia Aplicada e Tecnologias Agro-Ambientais.Microbiological Research2016-01-29T17:53:29Z2016-01-292016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/17139https://doi.org/file:///C|/Users/frei/AppData/Local/Microsoft/Windows/Temporary%20Internet%20Files/Content.Outlook/KFYT8LM9/dx.doi.org/10.1016/j.micres.2015.12.001http://hdl.handle.net/10174/17139https://doi.org/10.1016/j.micres.2015.12.001engLandum, M. C. Félix, M. R. Alho, J. Garcia R. Cabrita M.J. Rei, F. Varanda, C.M.R, 2016. Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum. Microbiological Research 183, 1-9ndmrff@uevora.ptndndmjbc@uevora.ptfrei@uevora.ptcarlavaranda@uevora.pt581Landum, MiguelFélix, RosárioAlho, JoanaGarcia, RaquelCabrita, JoãoRei, FernandoVaranda, Carlainfo: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:RCAAP2024-01-03T19:04:14Zoai:dspace.uevora.pt:10174/17139Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:09:17.796784Repositório 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 |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
title |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
spellingShingle |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum Landum, Miguel Oleae europaea Colletotrichum acutatum biological control antagonistic |
title_short |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
title_full |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
title_fullStr |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
title_full_unstemmed |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
title_sort |
Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum |
author |
Landum, Miguel |
author_facet |
Landum, Miguel Félix, Rosário Alho, Joana Garcia, Raquel Cabrita, João Rei, Fernando Varanda, Carla |
author_role |
author |
author2 |
Félix, Rosário Alho, Joana Garcia, Raquel Cabrita, João Rei, Fernando Varanda, Carla |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Landum, Miguel Félix, Rosário Alho, Joana Garcia, Raquel Cabrita, João Rei, Fernando Varanda, Carla |
dc.subject.por.fl_str_mv |
Oleae europaea Colletotrichum acutatum biological control antagonistic |
topic |
Oleae europaea Colletotrichum acutatum biological control antagonistic |
description |
Fungi naturally present in olive trees were identified and tested for their antagonistic potential against Colletotrichum acutatum. A total of 14 isolates were identified, 12 belonged to genera Alternaria, Epicoccum, Fusarium, Aspergillus, Anthrinium, Chaetomium, Diaporthe, Nigrospora, one to family Xylariaceae and one was unclassified. All fungal isolates showed some inhibitory action over the growth of C. acutatum during dual culture growth, however, when agar-diffusible tests were performed only five fungal isolates caused C. acutatum growth inhibition: Alternaria sp. isolate 2 (26.8%), the fungus from Xylariaceae family (14.3%), Alternaria sp. isolate 1 (10.7%); Diaporthe sp. (10.7%), Nigrospora oryzae (3.5%). Volatile substances produced by these isolates were identified through gas-chromatography techniques, as phenylethyl alcohol, 4-methylquinazoline, benzothiazole, benzyl alcohol, lilial, galaxolide, among others. These inhibitory volatiles could play a significant role in reduction of C. acutatum expansion in olive and their study as potential biocontrol agents should be further explored. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-29T17:53:29Z 2016-01-29 2016-01-01T00:00:00Z |
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 |
http://hdl.handle.net/10174/17139 https://doi.org/file:///C|/Users/frei/AppData/Local/Microsoft/Windows/Temporary%20Internet%20Files/Content.Outlook/KFYT8LM9/dx.doi.org/10.1016/j.micres.2015.12.001 http://hdl.handle.net/10174/17139 https://doi.org/10.1016/j.micres.2015.12.001 |
url |
http://hdl.handle.net/10174/17139 https://doi.org/file:///C|/Users/frei/AppData/Local/Microsoft/Windows/Temporary%20Internet%20Files/Content.Outlook/KFYT8LM9/dx.doi.org/10.1016/j.micres.2015.12.001 https://doi.org/10.1016/j.micres.2015.12.001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Landum, M. C. Félix, M. R. Alho, J. Garcia R. Cabrita M.J. Rei, F. Varanda, C.M.R, 2016. Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum. Microbiological Research 183, 1-9 nd mrff@uevora.pt nd nd mjbc@uevora.pt frei@uevora.pt carlavaranda@uevora.pt 581 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Microbiological Research |
publisher.none.fl_str_mv |
Microbiological Research |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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