Li Meijie, Ning Peng, Sun Yi, Luo Jie, Yang Jianming
Energy-Rich Compound Production by Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, Qingdao Agricultural University, Qingdao, China.
College of Life Sciences, Qingdao Agricultural University, Qingdao, China.
Front Bioeng Biotechnol. 2022 May 12;10:897003. doi: 10.3389/fbioe.2022.897003. eCollection 2022.
, a purple nonsulfur bacterium, is a bacterium with the properties of extraordinary metabolic versatility, carbon source diversity and metabolite diversity. Due to its biodetoxification and biodegradation properties, has been traditionally applied in wastewater treatment and bioremediation. is rich in various metabolites, contributing to its application in agriculture, aquaculture and livestock breeding as additives. In recent years, has been engineered as a microbial cell factory to produce valuable chemicals, especially photofermentation of hydrogen. The outstanding property of as a microbial cell factory is its ability to use a diversity of carbon sources. is capable of CO fixation, contributing to photoautotrophic conversion of CO into valuable chemicals. can assimilate short-chain organic acids and crude glycerol from industrial and agricultural wastewater. Lignocellulosic biomass hydrolysates can also be degraded by . Utilization of these feedstocks can reduce the industry cost and is beneficial for environment. Applications of for biopolymers and their building blocks production, and biofuels production are discussed. Afterward, some novel applications in microbial fuel cells, microbial electrosynthesis and photocatalytic synthesis are summarized. The challenges of the application of are analyzed, and possible solutions are suggested.
紫色非硫细菌是一种具有非凡代谢多样性、碳源多样性和代谢物多样性的细菌。由于其生物解毒和生物降解特性，传统上已应用于废水处理和生物修复。它富含各种代谢物，有助于其作为添加剂应用于农业、水产养殖和家畜养殖。近年来，它已被设计成一种微生物细胞工厂来生产有价值的化学品，特别是光发酵产氢。作为微生物细胞工厂的突出特性是其使用多种碳源的能力。它能够固定二氧化碳，有助于将二氧化碳光自养转化为有价值的化学品。它可以同化来自工农业废水的短链有机酸和粗甘油。木质纤维素生物质水解产物也可以被它降解。利用这些原料可以降低工业成本并有利于环境。讨论了其在生物聚合物及其构建块生产以及生物燃料生产中的应用。随后，总结了其在微生物燃料电池、微生物电合成和光催化合成中的一些新应用。分析了其应用面临的挑战，并提出了可能的解决方案。
