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Published on: December 15, 2017
Toward engineered microbial chassis for growth-production balancing
Huanghui Xia1,2, Bingmei Wang1,2, Feng Qi1,2
1College of Life Sciences, Fujian Normal University, Fuzhou, China.
Synthetic and Systems Biotechnology
|August 15, 2026
Summary
Microbial cell factories face a growth-production trade-off due to limited resources. New strategies decouple these processes temporally, network-wise, and spatially, making the trade-off a programmable trait for enhanced performance.
Area of Science:
- Synthetic Biology
- Metabolic Engineering
- Microbial Biotechnology
Background:
- Cellular growth and product synthesis are often in conflict due to resource allocation limits and metabolic burden.
- Traditional methods to overcome this trade-off have limitations and can impact cellular fitness.
Purpose of the Study:
- To review emerging strategies for modulating the growth-production trade-off in microbial chassis.
- To reframe the trade-off from a fixed barrier to a tunable design parameter.
Main Methods:
- Summarizing four complementary strategies: temporal decoupling, network-level resource optimization, spatial reorganization, and digital/intelligent control.
- Discussing dynamic genetic circuits, phase-segregated cultivation, flux redistribution, enzyme colocalization, and AI-based optimization.
Main Results:
- Decoupling strategies reschedule, redistribute, or relocalize competition rather than eliminate it.
- These multi-dimensional approaches enable high production without compromising cellular robustness.
Conclusions:
- The growth-production trade-off can be transformed into a programmable engineering variable.
- Future work should focus on dynamic circuit simplification, genetic stability, non-model host tools, and engineering GRAS organisms for predictable trade-off management.
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