Abstract
Natural products (NPs) produced by bacteria and fungi are often used as therapeutic agents due to their complex structures and wide range of bioactivities. Enzymes that build NPs are encoded by co-localized biosynthetic gene clusters (BGCs), and genome sequencing has recently revealed that many BGCs are “silent” under standard laboratory conditions. There are numerous methods used to activate “silent” BGCs that rely either upon altering culture conditions or genetic modification. In this review, we discuss several recent microbial cultivation methods that have been used to expand the scope of NPs accessible in the laboratory. These approaches are divided into three categories: addition of a physical scaffold, addition of small molecule elicitors, and co-cultivation with another microbe.
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Funding is gratefully acknowledged from the Natural Sciences and Engineering Research Council of Canada (RGPIN-2015-06078) (Discovery Grant to ACR) and Queen’s University (Research Initiation Grant to ACR and Graduate award to LU).
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Tomm, H.A., Ucciferri, L. & Ross, A.C. Advances in microbial culturing conditions to activate silent biosynthetic gene clusters for novel metabolite production. J Ind Microbiol Biotechnol 46, 1381–1400 (2019). https://doi.org/10.1007/s10295-019-02198-y
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DOI: https://doi.org/10.1007/s10295-019-02198-y