US Patent 8986960 Microorganisms with extended substrate utilization range

Disclosed are microorganisms of the genus Cupriavidus or Ralstonia, which are genetically modified to express phosphomannose isomerase (EC5.3.1.8) and facilitated diffusion protein (EC1.3.1.74) for mannose uptake, and optionally mannofructokinase (EC2.7.1.4). The microorganisms also may be genetically modified to express xylose isomerase (EC 5.3.1.5), xylulokinase (E 2.7.1.17) and xylose proton symporter E or a high affinity ABC-transporter. The genetically modified microorganisms are capable of growing on mannose, xylose, arabinose, glucose, or galactose, or a combination thereof as the carbon source.