Published
2023-12-19
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Filamentous bacteria producing hydrolytic enzymes isolated from rhizospheres and a composting system

DOI: https://doi.org/10.22490/21456453.6594
Section
Área Ambiental
Victor Manuel Osorio Echeverri I.U. Colegio Mayor de Antioquia
Jessica Johanna Obando García Institución Universitaria Colegio Mayor de Antioquia
Elizabeth Ximena Castrillón Duque Institución Universitaria Colegio Mayor de Antioquia
José Gregorio Martínez Institución Universitaria Colegio Mayor de Antioquia

Contextualization: Hydrolases are some of the most widely used enzymes in different industrial processes and can be obtained from microorganisms such as bacteria and fungi. Filamentous bacteria are a group of microorganisms that inhabit diverse environments, and many of these species produce extracellular hydrolases that catalyze the breakdown of compounds such as proteins and polysaccharides. The most representative genus is Streptomyces, a bacterial group found in most soils that synthesizes enzymes of industrial interest and the main antibiotics of microbial origin.

Knowledge gap: The high diversity of soils in the country represents an opportunity for bioprospecting of native microorganisms with enzymatic potential; these can be found in different little-studied agroecosystems and their biochemical capacities could be associated with the environmental and nutritional conditions of the sites where they are found.

Results and conclusions: 43 isolates of filamentous bacteria were obtained, of which 36, 42, 39 and 30 presented amylase, cellulase, gelatinase and lipase activity, respectively. In all the samples, at least one isolate with some hydrolytic activity was found. The composting system and the rhizosphere of the living fence were the sites with the most bacterial isolates with the highest activity, possibly due to characteristics such as moisture and organic matter of the soils from which they were recovered.