Light-harvesting pigments in photosynthetic bacteria

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · BioScience; (United States)

DOI:https://doi.org/10.2307/1308497· OSTI ID:6707033

Bolt, J D ^[1]; Hunter, C N; Niederman, R A; Sauer, K

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1. Columbia Univ., New York, NY

The major pigments of photosynthetic organisms occur in two functionally different roles in the photon-converting membranes. The major portion (typically up to 99% or more) serve as light-harvesting pigments to absorb the incident radiation and transfer the resulting electronic excitation to photosynthetic reaction centers. There, the second portion of the chlorophylls play an essential role in initiating the primary electron transfer. All of these pigments are thought to exist in specific complexes with proteins in the photosynthetic membranes. These pigments in the photosynthetic bacteria, Rhodopseudomonas sphaeroides, are briefly discussed in this paper. (JMT)

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6707033
• Journal Information: BioScience; (United States), Journal Name: BioScience; (United States); ISSN BISNA
• Country of Publication: United States
• Language: English

Related Subjects

550500 -- Metabolism
550700* -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ABSORPTION SPECTRA
BACTERIA
BIOCHEMISTRY
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHEMISTRY
CHLOROPHYLL
ELECTRON TRANSFER
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
MEMBRANES
MICROORGANISMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHOTOSYNTHETIC MEMBRANES
PHYTOCHROMES
PIGMENTS
PORPHYRINS
RHODOPSEUDOMONAS
SPECTRA
SYNTHESIS