Actividad Antifúngica de Compuestos Fenólicos de Tara (Caesalpinia Spinosa) Frente a Fusarium Graminearum

Translated title of the contribution: Antifungal Activity of Phenolic Compounds from Tara (Caesalpinia Spinosa) Against Fusarium Graminearum

Mateo David Leon Duran, Myriam Ximena Mancheno Cardenas

Research output: Contribution to journalArticle


Context: Fusarium graminearum is a field microorganism that affects grasses and causes great losses, particularly rice crops. To counteract these phytosanitary problems, excessive amounts of pesticides are applied, causing damage to health and the environment. An alternative is plant extracts with a high content of bioactive compounds. Knowledge gap: pyrogallol-type tannins contained in Caesalpinia spinosa pods have biological properties, inhibiting mycelial growth of Fusarium graminearum at low CFU/ml concentrations. Purpose of the study: the objective of this research was to determine in vitro the antifungal activity of the phenolic compounds of tara (Caesalpinia spinosa) against Fusarium graminearum. Methodology: first, phenolic compounds were extracted by maceration and heating (60 °C) using water and a water-ethanol mixture. The content of phenolic compounds in the extracts was determined by the Folin-Ciocalteu method. Second, a Fusarium strain obtained from a rice culture was isolated and identified by taxonomic keys; then, cell suspensions were made with 10⁷ and 10⁶ CFU/ml concentrations. For in vitro evaluation, a disc with inoculum from each suspension was placed in potato dextrose agar medium containing Caesalpinia spinosa extract. Results and conclusions: the aqueous extract by heating with a content of 5.88 g gallic acid/100 g dry sample inhibited 30 and 70% of mycelial growth of Fusarium graminearum at a concentration of 10⁷ and 10⁶ CFU/ml respectively. Phenolic compounds from Caesalpinia spinosa presented properties of interest for the control of Fusarium graminearum and can be tested in vivo and greenhouse.
Translated title of the contributionAntifungal Activity of Phenolic Compounds from Tara (Caesalpinia Spinosa) Against Fusarium Graminearum
Original languageSpanish (Ecuador)
Pages (from-to)1-12
Number of pages12
JournalRevista de Investigación Agraria y Ambiental
Issue number12
StatePublished - 30 Jun 2021


  • Fusarium graminearum
  • Inhibition
  • Phenolic compounds
  • Phyto_x0002_pathogen

CACES Knowledge Areas

  • 118A Agricultural and livestock production


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