乙醇生产模式光自养蓝藻的代谢工程:优化策略和挑战

J. Pembroke, Patricia Armshaw, M. P. Ryan
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引用次数: 5

摘要

利用模式蓝藻生产光自养乙醇是一项有吸引力的技术,为可持续乙醇生产作为生物燃料提供了潜力。我们对聚囊菌PCC6803模型菌株进行了代谢工程改造,通过克隆的异源丙酮酸脱羧酶将丙酮酸转化为乙醛,通过克隆的同源或异源乙醇脱氢酶将乙醛转化为乙醇。虽然该技术现已得到证实,但需要通过代谢和基因工程提高乙醇水平的策略,此外,还需要生产和工艺策略,以使该过程可持续。在这里,我们讨论了遗传和分子策略与正在应用的下游策略相结合,同时也讨论了未来应用的挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Metabolic Engineering of the Model Photoautotrophic Cyanobacterium Synechocystis for Ethanol Production: Optimization Strategies and Challenges
Photoautotrophic ethanol production using model cyanobacteria is an attractive technol - ogy that offers potential for sustainable ethanol production as a biofuel. Model strains of Synechocystis PCC6803 have been metabolically engineered to convert central meta bolic intermediates such as pyruvate to acetaldehyde via cloned heterologous pyruvate decarboxylase and from acetaldehyde to ethanol via cloned homologous or heterologous alcohol dehydrogenase. While the technology is now proven, strategies are required to increase the ethanol levels through metabolic and genetic engineering and in addition, production and process strategies are required to make the process sustainable. Here we discuss both genetic and molecular strategies in combination with do wnstream strate gies that are being applied while also discussing challenges to future application.
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