Resumen

MARIN-CORTEZ, Adriana Rosabel et al. Use of a microbial consortium from the southeast of Coahuila with potential for its application as a biofertilizer. Rev. Mex. Cienc. Agríc [online]. 2025, vol.16, n.spe30, e4046.  Epub 23-Ene-2026. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v16i30.4046.

Environmental sustainability is becoming increasingly important, and in the case of agriculture, the aim is for resources to be economically sustainable, maximizing production and minimizing costs. Among the current options, biofertilizers have gained relevance as they are a promising alternative by improving plant nutrition and strengthening defenses with the use of beneficial microorganisms in the rhizosphere. Although biofertilizer production traditionally focuses on the selection, characterization, and formulation of individual isolates (strains) with desired traits to promote plant growth, evidence suggests that bioinoculants increase efficacy when using microbial communities (consortia). This work aimed to evaluate the biotechnological potential of a microbial consortium obtained from southeastern Coahuila, which was identified via massive sequencing of the 16S rRNA gene and the 18S rRNA gene and was made up mainly of the yeast genera Meyerozyma spp., Debaryomyces spp., and Kurtzmaniella spp., as well as bacteria of the genus Bacillus. The evaluation as a biofertilizer was carried out with three formulations, culture medium with consortium [Med+C] and two alternatives, molasses with consortium and culture medium plus molasses with consortium [Mel+C and Med+Mel+C]; they were evaluated under greenhouse conditions in Spinacia oleracea (spinach), and there were also a control (water) and a commercial product as treatments. The application of the different formulations, in particular Med+C, tends to increase the agronomic variables of the crop (height, stem diameter, leaf length and width, fresh weight and dry weight) and the amount of minerals (Fe, K and Cu) compared to the control treatment. The results obtained indicate that the application of microbial consortia significantly reduces the use of chemical fertilizers.

Palabras llave : Bioinoculant; Bacillus; Debaryomyces; Kurtzmaniella; yeasts; Meyerozyma.

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