Growth Inhibition of Phytopathogenic Fungi and Oomycetes by Basidiomycete Irpex lacteus and Identification of its Antimicrobial Extracellular Metabolites

• Published in: Polish journal of microbiology Vol. 70; no. 1; pp. 131 - 136
• Main Authors: Pineda-Suazo, Daisy, Montero-Vargas, Josaphat Miguel, Ordaz-Ortiz, José Juan, Vázquez-Marrufo, Gerardo
• Format: Journal Article
• Language: English
• Published: Poland De Gruyter Poland 01.03.2021; Exeley Inc; Sciendo
• Subjects: Aldehydes; Aldehydes - chemistry; Aldehydes - metabolism; Aldehydes - pharmacology; antagonism; Antibiosis; antifungal; Antifungal activity; Antifungal Agents - chemistry; Antifungal Agents - metabolism; Antifungal Agents - pharmacology; Antiinfectives and antibacterials; Antimicrobial agents; Biological control; extracellular metabolites; Filtrate; Fungi; Fungicides; Fusarium - drug effects; Fusarium - growth & development; Irpex lacteus; Mass Spectrometry; Metabolites; Microbiology; Microorganisms; mycelium; Oomycetes - drug effects; Oomycetes - growth & development; Phytopathogenic fungi; Phytophthora - drug effects; Phytophthora - growth & development; Plant Diseases - microbiology; Polyporales - chemistry; Polyporales - metabolism; Quinazolines - chemistry; Quinazolines - metabolism; Quinazolines - pharmacology; Software; Terpenes; Terpenes - chemistry; Terpenes - metabolism; Terpenes - pharmacology; mycelium; antifungal; antagonism; extracellular metabolites; terpenes
• ISSN: 2544-4646; 1733-1331; 2544-4646
• DOI: 10.33073/pjm-2021-014

In dual culture confrontation assays, basidiomycete efficiently antagonized spp., spp., and spp. phytopathogenic strains, with growth inhibition percentages between 16.7-46.3%. Antibiosis assays evaluating the inhibitory effect of soluble extracellular metabolites indicated strain inhibited phytopathogens growth between 32.0-86.7%. Metabolites in the extracellular broth filtrate, identified by UPLC-QTOF mass spectrometer, included nine terpenes, two aldehydes, and derivatives of a polyketide, a quinazoline, and a xanthone, several of which had antifungal activity. strain and its extracellular metabolites might be valuable tools for phytopathogenic fungi and oomycete biocontrol of agricultural relevance.