Avocado is one of the most in-demand fruits worldwide and the trend towards its sustainable production, regulated by international standards, is increasing. One of the most economically important diseases is root rot, caused by . Regarding this problem, antagonistic microorganism use is an interesting alternative due to their phytopathogen control efficiency. Therefore, the interaction of arbuscular mycorrhizal fungi of the phylum Glomeromycota, native to the Peruvian coast (GWI) and jungle (GFI), and avocado rhizospheric bacteria, and , was evaluated in terms of their biocontrol capacity against in the "Zutano" variety of avocado plants. The results showed that the GWI and combination increased the root exploration surface by 466.36%. increased aerial biomass by 360.44% and increased root biomass by 433.85%. Likewise, rhizobacteria showed the highest nitrogen (24.60 mg ∙ g DM) and sulfur (2.60 mg ∙ g DM) concentrations at a foliar level. The combination of GWI and was the treatment that presented the highest calcium (16.00 mg ∙ g DM) and magnesium (8.80 mg ∙ g DM) concentrations. The microorganisms' multifunctionality reduced disease severity by 85 to 90% due to the interaction between mycorrhizae and rhizobacteria. In conclusion, the use of growth promoting microorganisms that are antagonistic to represents a potential strategy for sustainable management of avocado cultivation.
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| http://dx.doi.org/10.3390/microorganisms12040721 | DOI Listing |
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