Abstract

Gluconobacter oxydans have been widely used in industrial compound production for their incomplete oxidation ability. However, they are often subjected to a wide variety of severe environmental stresses, such as extreme pH, high temperature, osmotic pressure, and organic solvents, which greatly repress microbial growth viability and productivity. As typical biocatalysis chassis cells with a high tolerance to external environmental stresses, it is extremely important to construct highly tolerant chassis cells and understand the tolerance mechanisms of G. oxydans and how different stresses interact with the cell: membranes, phospholipid bilayers, transporters, and chaperone proteins. In this review, we discuss and summarize the mechanisms of environmental stress tolerance in G. oxydans, and the promising strategies that can be used to further construct tolerant strains are prospected.

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