Halomonas and Pathway Engineering for Bioplastics Production

Methods in Enzymology
Jiang Xiao-RanChen Guo-Qiang

Abstract

Traditional microbial chassis, including Escherichia coli, Bacillus subtilis, Ralstonia eutropha, and Pseudomonas putida, are grown under neutral pH and mild osmotic pressure for production of chemicals and materials. They tend to be contaminated easily by many microorganisms. To address this issue, next-generation industrial biotechnology employing halophilic Halomonas spp. has been developed for production of bioplastics polyhydroxyalkanoates (PHAs) and other chemicals. Halomonas spp. that can be grown contamination free under open and unsterile condition at alkali pH and high NaCl have been engineered to produce several PHA polymers in elongated or enlarged cells. New pathways can also be constructed both in plasmids and on chromosomes for Halomonas spp. Synthetic biology approaches and parts have been developed for Halomonas spp., allowing better control of their growth and product formation as well as morphology adjustment. Halomonas spp. and their synthetic biology will play an increasingly important role for industrial production of large volume chemicals.

Citations

Aug 21, 2020·International Journal of Systematic and Evolutionary Microbiology·Peixin GaoQinglong L Wu
Apr 29, 2021·International Journal of Systematic and Evolutionary Microbiology·Liping WangZongze Shao

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