Modular co‐culture engineering is an emerging approach for biosynthesis of complex natural products. In this study, microbial co‐cultures composed of two and three
Converting renewable feedstocks to aromatic compounds using engineered microbes offers a robust approach for sustainable, environment‐friendly, and cost‐effective production of these value‐added products without the reliance on petroleum. In this study, rationally designed
- Award ID(s):
- 1706058
- NSF-PAR ID:
- 10461388
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Engineering in Life Sciences
- Volume:
- 19
- Issue:
- 5
- ISSN:
- 1618-0240
- Page Range / eLocation ID:
- p. 389-395
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract Escherichia coli strains, respectively, are constructed for de novo biosynthesis of flavonoid acacetin, a value‐added natural compound possessing numerous demonstrated biological activities, from simple carbon substrate glucose. To this end, the heterologous biosynthetic pathway is divided into different modules, each of which is accommodated in a dedicatedE. coli strain for functional expression. After the optimization of the inoculation ratio between the constituent strains, the engineered co‐cultures show a 4.83‐fold improvement in production comparing to the mono‐culture controls. Importantly, cultivation of the three‐strain co‐culture in shake flasks result in the production of 20.3 mg L−1acacetin after 48 h. To the authors' knowledge, this is the first report on acacetin de novo biosynthesis in a heterologous microbial host. The results of this work confirm the effectiveness of modular co‐culture engineering for complex flavonoid biosynthesis. -
Bradford, Patricia A. (Ed.)
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