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Use of soil actinomycetes for pharmaceutical, food, agricultural, and environmental purposes

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Abstract

In this article, we reviewed the international scientific production of the last years on actinomycetes isolated from soil aiming to report recent advances in using these microorganisms for different applications. The most promising genera, isolation conditions and procedures, pH, temperature, and NaCl tolerance of these bacteria were reported. Based on the content analysis of the articles, most studies have focused on the isolation and taxonomic description of new species of actinomycetes. Regarding the applications, the antimicrobial potential (antibacterial and antifungal) prevailed among the articles, followed by the production of enzymes (cellulases and chitinases, etc.), agricultural uses (plant growth promotion and phytopathogen control), bioremediation (organic and inorganic contaminants), among others. Furthermore, a wide range of growth capacity was verified, including temperatures from 4 to 60 °C (optimum: 28 °C), pH from 3 to 13 (optimum: 7), and NaCl tolerance up to 32% (optimum: 0–1%), which evidence a great tolerance for actinomycetes cultivation. Streptomyces was the genus with the highest incidence among the soil actinomycetes and the most exploited for different uses. Besides, the interest in isolating actinomycetes from soils in extreme environments (Antarctica and deserts, for example) is growing to explore the adaptive capacities of new strains and the secondary metabolites produced by these microorganisms for different industrial interests, especially for pharmaceutical, food, agricultural, and environmental purposes.

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Funding

This study was financed in part by the National Council for Scientific and Technological (CNPq) (Projects Codes 403658/2020–9 and 140541/2021–7) and the Coordination for the Improvement of Higher Education Personnel (CAPES).

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Conceptualization: Mateus Torres Nazari; Methodology: Mateus Torres Nazari; Formal analysis and investigation: Mateus Torres Nazari, Bruna Strieder Machado, Giovana Marchezi, Larissa Crestani, Valdecir Ferrari; Writing—original draft preparation: Mateus Torres Nazari, Bruna Strieder Machado, Giovana Marchezi, Larissa Crestani; Writing—review and editing: Mateus Torres Nazari, Valdecir Ferrari; Luciane Maria Colla, Jeferson Steffanello Piccin; Supervision: Luciane Maria Colla, Jeferson Steffanello Piccin.

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Correspondence to Luciane Maria Colla.

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The authors have no relevant financial or non-financial interests to disclose.

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Nazari, M.T., Machado, B.S., Marchezi, G. et al. Use of soil actinomycetes for pharmaceutical, food, agricultural, and environmental purposes. 3 Biotech 12, 232 (2022). https://doi.org/10.1007/s13205-022-03307-y

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  • DOI: https://doi.org/10.1007/s13205-022-03307-y

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