Microbial electro-photosynthesis

A microbial electrosynthesis cell apparatus comprising:

• a photobioreactor;
• a liquid disposed within the photobioreactor containing a microbe, wherein the microbe is a green sulfur bacterium, a green non-sulfur bacterium, a purple sulphur bacterium, a purple non-sulfur bacterium, a heliobacterium or an algae, comprising a mutation in a gene encoding a protein of Photosystem II (PSII), wherein PRI function in the microbe is minimal or absent;
• an electrode unit comprising an anode and a cathode, wherein the electrode unit is in fluid communication with the photobioreactor;
• a power source coupled to the electrode unit
• wherein, a source of electrons is generated in the electrode unit;
• and
• a redox mediator for shuttling electrons between the microbe and the cathode.