Photosynthetic water splitting. Annual progress report

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5356927

Greenbaum, E

It has been demonstrated that eukaryotic green algae (as represented by Chlamydomonas) are inherently rugged algae with respect to the biophotolysis of water. There also exists a potential for selecting subpopulations of wild-type algae with enhanced properties for hydrogen and oxygen production. Second, hydrogenase activity in macroscopic marine algae does not conform to the conventional dogma of the catalog of reactions that this enzyme is supposed to catalyze. A kinetic argument has been presented which suggests that, with respect to light activated reactions, hydrogenase in these organisms operates primarily in a hydrogen uptake mode. Third, the light saturation curves for the simultaneous photoproduction of hydrogen and oxygen do not have the same analytical shape. It is suggested that a Photosystem I-like hydrogen producing light reaction may be present in anaerobically adapted Scenedesmus which is uncoupled from the Z scheme.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5356927
• Report Number(s): CONF-820676-1; ON: DE82017315
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080106 -- Hydrogen-- Production-- Biosynthesis & Photochemical Processes
09 BIOMASS FUELS
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALGAE
AQUATIC ORGANISMS
BIOCONVERSION
BIOPHOTOLYSIS
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
ENZYMES
HYDROGEN COMPOUNDS
HYDROGEN PRODUCTION
HYDROGENASES
NONMETALS
OXIDOREDUCTASES
OXYGEN
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
PHOTOSYNTHESIS
PLANTS
SEAWEEDS
SYNTHESIS
WATER