RT info:eu-repo/semantics/article
T1 Self-Inhibitory Activity of Trichoderma Soluble Metabolites and Their Antifungal Effects on Fusarium oxysporum
A1 Álvarez García, Samuel
A1 Mayo Prieto, Sara
A1 Gutiérrez Martín, Santiago
A1 Casquero Luelmo, Pedro Antonio
A2 Fisiologia Vegetal
K1 Ingeniería agrícola
K1 Self-inhibition
K1 Autotoxicity
K1 Autoinhibition
K1 Membrane Assay
K1 Secondary Metabolites
K1 Di usible Metabolites
K1 Antifungal
K1 Fungi
K1 Trichoderma
K1 Fusarium
K1 2417.19 Fisiología Vegetal
AB [EN] Self-inhibitory processes are a common feature shared by di erent organisms. One ofthe main mechanisms involved in these interactions regarding microorganisms is the release oftoxic di usible substances into the environment. These metabolites can exert both antimicrobiale ects against other organisms as well as self-inhibitory ones. The in vitro evaluation of thesee ects against other organisms has been widely used to identify potential biocontrol agents againstphytopathogenic microorganisms. In the present study, we performed membrane assays to comparethe self-inhibitory e ects of soluble metabolites produced by several Trichoderma isolates and theirantifungal activity against a phytopathogenic strain of Fusarium oxysporum. The results demonstratedthat Trichoderma spp. present a high self-inhibitory activity in vitro, being a ected in both theirgrowth rate and the macroscopic structure of their colonies. These e ects were highly similar tothose exerted against F. oxysporum in the same conditions, showing no significant di erences inmost cases. Consequently, membrane assays may not be very informative by themselves to assessputative biocontrol capabilities. Therefore, di erent methods, or a combination of antifungal andself-inhibitory experiments, could be a better approach to evaluate the potential biocontrol activity ofmicrobial strains in order to pre-select them for further in vivo trials.
PB MDPI
LK https://hdl.handle.net/10612/20948
UL https://hdl.handle.net/10612/20948
NO Álvarez-García, S., Mayo-Prieto, S., Gutiérrez, S., & Casquero, P. A. (2020). Self-inhibitory activity of trichoderma soluble metabolites and their antifungal effects on fusarium oxysporum. Journal of Fungi, 6(3), 1-11. https://doi.org/10.3390/JOF6030176
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 6, 2024