Studies of photosynthetic energy conversion

Technical Report · Wed Jul 01 00:00:00 EDT 1981

OSTI ID:6352532

Clayton, R K

Spectroscopic studies are reported on the major pigmented components of bacterial photosynthetic membranes: antenna complexes and photochemical reaction centers of Rhodopseudomonas sphaeroides and related species. Through optical studies with polarized light, combining the techniques of linear dichroism and photoselection, the relative orientations have been determined of pigment molecules in reaction centers and antenna complexes and in relation to the photosynthetic membrane. Fairly complete angular coordinates have been obtained of bacterio-chlorophyll (bchl) and bacteriopheophytin in the reaction centers, and less detailed information about antenna pigments (bchl and carotenoids) and bound cytochromes. The result of this kind of work in several laboratories has been a more specific view of the molecular geometry of the reaction center, as related to its photochemical function.

• Research Organization: Cornell Univ., Ithaca, NY (USA)
• DOE Contract Number: AS02-76ER03162
• OSTI ID: 6352532
• Report Number(s): DOE/ER/03162-T1; COO-3162-56; ON: DE81028313
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
59 BASIC BIOLOGICAL SCIENCES
PHOTOSYNTHESIS
PHOTOSYNTHETIC BACTERIA
PIGMENTS
PHOTOSYNTHETIC MEMBRANES
OPTICAL PROPERTIES
PHOTOCHEMISTRY
CAROTENOIDS
CHLOROPHYLL
CYTOCHROMES
DICHROISM
MOLECULAR STRUCTURE
ORIENTATION
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHEMISTRY
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
MEMBRANES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHYSICAL PROPERTIES
PHYTOCHROMES
PORPHYRINS
SYNTHESIS
TERPENES
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)
550200 - Biochemistry
550700 - Microbiology