Literature DB >> 2404276

Femtosecond dynamics of energy transfer in B800-850 light-harvesting complexes of Rhodobacter sphaeroides.

J K Trautman1, A P Shreve, C A Violette, H A Frank, T G Owens, A C Albrecht.   

Abstract

We report femtosecond transient absorption studies of energy transfer dynamics in the B800-850 light-harvesting complex (LHC) of Rhodobacter sphaeroides 2.4.1. For complexes solubilized in lauryldimethylamine-N-oxide (LDAO), the carotenoid to bacteriochlorophyll (Bchl) B800 and carotenoid to Bchl B850 energy transfer times are 0.34 and 0.20 ps, respectively. The B800 to B850 energy transfer time is 2.5 ps. For complexes treated with lithium dodecyl sulfate (LDS), a carotenoid to B850 energy transfer time of less than or equal to 0.2 ps is seen, and a portion of the total carotenoid population is decoupled from Bchl. In both LDAO-solubilized and LDS-treated complexes an intensity-dependent picosecond decay component of the excited B850 population is ascribed to excitation annihilation within minimal units of the LHC.

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Year:  1990        PMID： 2404276      PMCID： PMC53232          DOI： 10.1073/pnas.87.1.215

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  4 in total

1.  B850 pigment-protein complex of Rhodopseudomonas sphaeroides: Extinction coefficients, circular dichroism, and the reversible binding of bacteriochlorophyll.

Authors:  R K Clayton; B J Clayton
Journal:  Proc Natl Acad Sci U S A       Date:  1981-09       Impact factor: 11.205

2.  Molecular dynamics simulations of cooling in laser-excited heme proteins.

Authors:  E R Henry; W A Eaton; R M Hochstrasser
Journal:  Proc Natl Acad Sci U S A       Date:  1986-12       Impact factor: 11.205

Review 3.  How carotenoids function in photosynthetic bacteria.

Authors:  R J Cogdell; H A Frank
Journal:  Biochim Biophys Acta       Date:  1987

4.  Analysis of picosecond laser induced fluorescence phenomena in photosynthetic membranes utilizing a master equation approach.

Authors:  G Paillotin; C E Swenberg; J Breton; N E Geacintov
Journal:  Biophys J       Date:  1979-03       Impact factor: 4.033
  4 in total
  16 in total

1.  Quantum coherence spectroscopy reveals complex dynamics in bacterial light-harvesting complex 2 (LH2).

Authors:  Elad Harel; Gregory S Engel
Journal:  Proc Natl Acad Sci U S A       Date:  2012-01-03       Impact factor: 11.205

2.  Enhancement of carotenoid-to-chlorophyll singlet energy transfer by carotenoid-carotenoid interaction.

Authors:  J Zurdo; C Fernández-Cabrera; J M Ramírez
Journal:  Biophys J       Date:  1992-06       Impact factor: 4.033

3.  Polarized fluorescence measurements on ordered photosynthetic antenna complexes: Chlorosomes of Chloroflexus aurantiacus and B800-B850 antenna complexes of Rhodobacter sphaeroides.

Authors:  H van Amerongen; B van Haeringen; M van Gurp; R van Grondelle
Journal:  Biophys J       Date:  1991-05       Impact factor: 4.033

4.  Vibrational spectroscopy of excited electronic states in carotenoids in vivo. Picosecond time-resolved resonance Raman scattering.

Authors:  H Hayashi; T Noguchi; M Tasumi; G H Atkinson
Journal:  Biophys J       Date:  1991-07       Impact factor: 4.033

5.  Long-wavelength absorbing antenna pigments and heterogeneous absorption bands concentrate excitons and increase absorption cross section.

Authors:  H W Trissl
Journal:  Photosynth Res       Date:  1993-03       Impact factor: 3.573

6.  Spectral heterogeneity and carotenoid-to-bacteriochlorophyll energy transfer in LH2 light-harvesting complexes from Allochromatium vinosum.

Authors:  Nikki M Magdaong; Amy M LaFountain; Kirsty Hacking; Dariusz M Niedzwiedzki; George N Gibson; Richard J Cogdell; Harry A Frank
Journal:  Photosynth Res       Date:  2015-06-06       Impact factor: 3.573

7.  Fluorescence and photobleaching dynamics of single light-harvesting complexes.

Authors:  M A Bopp; Y Jia; L Li; R J Cogdell; R M Hochstrasser
Journal:  Proc Natl Acad Sci U S A       Date:  1997-09-30       Impact factor: 11.205

8.  Applications of spectral hole burning spectroscopies to antenna and reaction center complexes.

Authors:  N R Reddy; P A Lyle; G J Small
Journal:  Photosynth Res       Date:  1992-03       Impact factor: 3.573

9.  Direct observation of sub-picosecond equilibration of excitation energy in the light-harvesting antenna of Rhodospirillum rubrum.

Authors:  H M Visser; O J Somsen; F van Mourik; S Lin; I H van Stokkum; R van Grondelle
Journal:  Biophys J       Date:  1995-09       Impact factor: 4.033

10.  Communication: Coherences observed in vivo in photosynthetic bacteria using two-dimensional electronic spectroscopy.

Authors:  Peter D Dahlberg; Graham J Norris; Cheng Wang; Subha Viswanathan; Ved P Singh; Gregory S Engel
Journal:  J Chem Phys       Date:  2015-09-14       Impact factor: 3.488
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