Kwon Seong Woo, Paari Kuppusamy Alagesan, Malaviya Alok, Jang Yu-Sin
Department of Agricultural Chemistry and Food Science Technology, Division of Applied Life Science (BK21 Plus Program), Institute of Agriculture & Life Science (IALS), Gyeongsang National University, Jinju, South Korea.
Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, India.
Front Bioeng Biotechnol. 2020 Apr 16;8:282. doi: 10.3389/fbioe.2020.00282. eCollection 2020.
Strains of genus are used for production of various value-added products including fuels and chemicals. Development of any commercially viable production process requires a combination of both strain and fermentation process development strategies. The strain development in sp. could be achieved by random mutagenesis, and targeted gene alteration methods. However, strain improvement in sp. by targeted gene alteration method was challenging due to the lack of efficient tools for genome and transcriptome engineering in this organism. Recently, various synthetic biology tools have been developed to facilitate the strain engineering of solventogenic . In this review, we consolidated the recent advancements in toolbox development for genome and transcriptome engineering in solventogenic . Here we reviewed the genome-engineering tools employing mobile group II intron, alleles exchange, and CRISPR/Cas9 with their application for strain development of sp. Next, transcriptome engineering tools such as untranslated region (UTR) engineering and synthetic sRNA techniques were also discussed in context of strain engineering. Application of any of these discussed techniques will facilitate the metabolic engineering of clostridia for development of improved strains with respect to requisite functional attributes. This might lead to the development of an economically viable butanol production process with improved titer, yield and productivity.
该属的菌株用于生产包括燃料和化学品在内的各种增值产品。任何商业上可行的生产工艺的开发都需要菌株和发酵工艺开发策略的结合。某菌种的菌株开发可以通过随机诱变和靶向基因改造方法来实现。然而,由于该生物体缺乏用于基因组和转录组工程的有效工具,通过靶向基因改造方法改善某菌种的菌株具有挑战性。最近,已经开发了各种合成生物学工具来促进产溶剂菌的菌株工程。在这篇综述中,我们总结了产溶剂菌基因组和转录组工程工具箱开发的最新进展。在这里,我们回顾了利用移动II组内含子、等位基因交换和CRISPR/Cas9的基因组工程工具及其在某菌种菌株开发中的应用。接下来,还在某菌种菌株工程的背景下讨论了转录组工程工具,如非翻译区(UTR)工程和合成sRNA技术。这些讨论的技术中的任何一种的应用都将促进梭菌的代谢工程,以开发具有所需功能属性的改良菌株。这可能会导致开发出一种经济上可行的丁醇生产工艺,其效价、产量和生产率都有所提高。