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Impact of Colletotrichum acutatum Pathogen on Olive Phenylpropanoid Metabolism

Author

Listed:
  • Irene Gouvinhas

    (Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, 5000-901 Vila Real, Portugal)

  • Paula Martins-Lopes

    (School of Life and Environment Sciences, University of Trás-os-Montes and Alto Douro, 5000-901 Vila Real, Portugal
    BioISI–Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal)

  • Teresa Carvalho

    (National Institute for Agricultural and Veterinary Research, I. P. (INIAV), Estrada de Gil Vaz, 7351-901 Elvas, Portugal)

  • Ana Barros

    (Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, 5000-901 Vila Real, Portugal)

  • Sónia Gomes

    (School of Life and Environment Sciences, University of Trás-os-Montes and Alto Douro, 5000-901 Vila Real, Portugal
    BioISI–Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal)

Abstract

Olive anthracnose caused by the hemibiotrophic fungal pathogen Colletotrichum acutatum is a serious threat to the olive sector. Olive oil and fruit production is severely constrained by Colletotrichum spp. infection, being C. acutatum the most distributed pathogen in Portuguese olive orchards. To understand the impact of C. acutatum on phenylpropanoids biosynthesis, the enzyme activity, phenolic compounds, ortho -diphenols, and flavonoids content were determined and correlated with the expression of gene encoding key enzymes within phenylpropanoids metabolism in susceptible and tolerant olive fruits, during maturation and when infected with C. acutatum . Differences between cultivars was observed, the tolerant olive cv. Picual presented a higher basal value and a stable phenolic content throughout the infection process, supporting its high C. acutatum tolerance, whereas in the susceptible olive cv. Galega these secondary metabolites were significantly increased only after the elicitation with C. acutatum .

Suggested Citation

  • Irene Gouvinhas & Paula Martins-Lopes & Teresa Carvalho & Ana Barros & Sónia Gomes, 2019. "Impact of Colletotrichum acutatum Pathogen on Olive Phenylpropanoid Metabolism," Agriculture, MDPI, vol. 9(8), pages 1-15, August.
    • Handle: RePEc:gam:jagris:v:9:y:2019:i:8:p:173-:d:255113
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    References listed on IDEAS

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