Dr. Jianping Yu, research scientist in Photobiology Group at NREL, has proved certain cyanobacterium (Synechocystis sp. PCC 6803) can be genetically engineered to produce ethylene. In addition to increasing cyanobacterium-produced ethylene in laboratory to 35 mg/L/hr, Yu has been able to keep cyanobacterium producing ethylene even as said organism continues to grow. Going outside laboratory, Yu and his group want to design a photobioreactor and take this experiment outdoors.