Advances and prospects in metabolic engineering of Zymomonas mobilis
2018
Wang, Xia | He, Qiaoning | Yang, Yongfu | Wang, Jingwen | Haning, Katie | Hu, Yun | Wu, Bo | He, Mingxiong | Zhang, Yaoping | Bao, Jie | Contreras, Lydia M. | Yang, Shihui
Biorefinery of biomass-based biofuels and biochemicals by microorganisms is a competitive alternative of traditional petroleum refineries. Zymomonas mobilis is a natural ethanologen with many desirable characteristics, which makes it an ideal industrial microbial biocatalyst for commercial production of desirable bioproducts through metabolic engineering. In this review, we summarize the metabolic engineering progress achieved in Z. mobilis to expand its substrate and product ranges as well as to enhance its robustness against stressful conditions such as inhibitory compounds within the lignocellulosic hydrolysates and slurries. We also discuss a few metabolic engineering strategies that can be applied in Z. mobilis to further develop it as a robust workhorse for economic lignocellulosic bioproducts. In addition, we briefly review the progress of metabolic engineering in Z. mobilis related to the classical synthetic biology cycle of “Design-Build-Test-Learn”, as well as the progress and potential to develop Z. mobilis as a model chassis for biorefinery practices in the synthetic biology era.
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