Exploiting unconventional prokaryotic hosts for industrial biotechnology

Abstract

Developing cost-efficient biotechnological processes is a major challenge in replacing fossil-based industrial production processes. The remarkable progress in genetic engineering ensures efficient and fast tailoring of microbial metabolism for a wide range of bioconversions. However, improving intrinsic properties such as tolerance, handling, growth, and substrate consumption rates is still challenging. At the same time, synthetic biology tools are becoming easier applicable and transferable to nonmodel organisms. These trends have resulted in the exploitation of new and unconventional microbial systems with sophisticated properties, which render them promising hosts for the bio-based industry. Here, we highlight the metabolic and cellular capabilities of representative prokaryotic newcomers and discuss the potential and drawbacks of these hosts for industrial application.

Keywords: Bacillus methanolicus; Paenibacillus polymyxa; Pseudomonas taiwanensis; Vibrio natriegens; alternative carbon sources; bioprocess development; genetic engineering; industrial biotechnology; metabolic engineering; novel microbial systems; strain development; unconventional production hosts.