Zhang Angela, Carroll Austin L, Atsumi Shota
Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA 95616, USA.
FEMS Microbiol Lett. 2017 Sep 1;364(16). doi: 10.1093/femsle/fnx165.
Atmospheric CO2 levels have reached an alarming level due to industrialization and the burning of fossil fuels. In order to lower the level of atmospheric carbon, strategies to sequester excess carbon need to be implemented. The CO2-fixing mechanism in photosynthetic organisms enables integration of atmospheric CO2 into biomass. Additionally, through exogenous metabolic pathways in these photosynthetic organisms, fixed CO2 can be routed to produce various commodity chemicals that are currently produced from petroleum. This review will highlight studies and modifications to different components of cyanobacterial CO2-fixing systems, as well as the application of these systems toward CO2-derived chemical production. 2,3-Butanediol is given particular focus as one of the most thoroughly studied systems for conversion of CO2 to a bioproduct.
由于工业化和化石燃料的燃烧，大气中的二氧化碳水平已达到令人担忧的程度。为了降低大气中的碳含量，需要实施固存过量碳的策略。光合生物中的二氧化碳固定机制能够将大气中的二氧化碳整合到生物质中。此外，通过这些光合生物中的外源代谢途径，固定的二氧化碳可以被引导用于生产目前由石油生产的各种商品化学品。本综述将重点介绍对蓝藻二氧化碳固定系统不同组成部分的研究和改进，以及这些系统在二氧化碳衍生化学品生产中的应用。作为将二氧化碳转化为生物产品研究最深入的系统之一，2,3-丁二醇受到了特别关注。
