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Screening Microorganisms for Bioactive Compounds

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The Marine Microbiome

Abstract

Novel bioactive compounds are in high demand due to the development of microbial antibiotic resistance, increase in age-related diseases, and requirements for optimized manufacturing processes. The bioactive compounds can act as specific antitumor, anti-inflammatory, and antifungal compounds as well as pharmaceuticals against metabolic diseases. Bioprospecting from marine microorganisms has a tremendous potential for the discovery of novel bioactive compounds as enzymes and complex secondary metabolites for industrial as well as for biotechnological and therapeutic applications. A bioprospecting process usually begins with the isolation of a native microorganism, extraction of compounds from a culture sample, or with the isolation of environmental DNA for either heterologous expression or sequencing. Extracts from live microorganisms can be screened for bioactivity in function-based screening assays, while DNA from either the isolated microorganisms or from the environment can be screened with sequence-based screening methods or genome mining. Once a desired activity has been detected, the bioactive compound should be purified, the structure should be elucidated, and preferably its mechanism of action should be described. In this chapter, we give an overview of the bioprospecting process with special focus on compounds with therapeutic properties from marine microorganisms, and we evaluate some of the most commonly used strategies that have been used at different steps in the bioprospecting processes when searching for novel bioactive compounds.

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Acknowledgments

The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007–2013) under grant agreement no 311975. This publication reflects the views only of the author, and the European Union cannot be held responsible for any use which may be made of the information contained therein (CS, FC, and MST). SG was funded by an Early Stage Researchers Grant, “BacTory”, from the People Programme (Marie Curie Actions) No. 317058 of the European Union’s Seventh Framework Programme FP7-People-2012-ITN.

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Correspondence to Lone Gram .

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© 2016 Springer International Publishing Switzerland

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Giubergia, S. et al. (2016). Screening Microorganisms for Bioactive Compounds. In: Stal, L., Cretoiu, M. (eds) The Marine Microbiome. Springer, Cham. https://doi.org/10.1007/978-3-319-33000-6_13

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