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Title: Antagonistic activity of fungi of Olea europaea L. against Colletotrichum acutatum
Authors: Landum, Miguel
Félix, Rosário
Alho, Joana
Garcia, Raquel
Cabrita, João
Rei, Fernando
Varanda, Carla
Editors: Elsevier
Keywords: Oleae europaea
Colletotrichum acutatum
biological control
Issue Date: 2016
Publisher: Microbiological Research
Citation: 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
Abstract: 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.
URI: file:///C|/Users/frei/AppData/Local/Microsoft/Windows/Temporary%20Internet%20Files/Content.Outlook/KFYT8LM9/
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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