Hydrogen Production by CO Deprived Photoautotrophic Chlamydomonas reinhardtii Cultures.

Light-dependent hydrogen production by microalgae attracts attention of researchers because of the potential practical application. It is generally recognized that Calvin-Benson-Bassham cycle competes with hydrogen production process for electrons, and substrate (CO2) limitation of the cycle can increase hydrogen production rate. Furthermore, photosystem II is not destroyed by CO2 deficiency.