Microorganisms with extended substrate utilization range

摘要

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