Literature DB >> 31201634

Singlet-triplet Fission of Carotenoid Excitation in the Purple Phototrophic Bacteria Thermochromatium tepidum.

I B Klenina1, A A Gryaznov1, Z K Makhneva1, I I Proskuryakov2.   

Abstract

Singlet fission of carotenoid excitation is studied in purple phototrophic bacterium Thermochromatium tepidum. Using time-resolved EPR and magnetic field-induced modulation of fluorescence yield it is shown that the concept of intramolecular excitation fission developed in a number of publications is not supported by the experimental results. The obtained data favor intermolecular fission mechanism involving two carotenoid molecules.

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Year:  2019        PMID： 31201634     DOI： 10.1134/S1607672919020169

Source DB:  PubMed          Journal:  Dokl Biochem Biophys        ISSN： 1607-6729            Impact factor:   0.788


  8 in total

1.  Carotenoid triplet states in vitro and in light-harvesting complexes of the phototrophic bacterium Allochromatium minutissimum.

Authors:  I B Klenina; Z K Makhneva; A A Moskalenko; I I Proskuryakov
Journal:  Dokl Biochem Biophys       Date:  2012-01-06       Impact factor: 0.788

2.  Singlet fission.

Authors:  Millicent B Smith; Josef Michl
Journal:  Chem Rev       Date:  2010-11-01       Impact factor: 60.622

3.  An unusual pathway of excitation energy deactivation in carotenoids: singlet-to-triplet conversion on an ultrafast timescale in a photosynthetic antenna.

Authors:  C C Gradinaru; J T Kennis; E Papagiannakis; I H van Stokkum; R J Cogdell; G R Fleming; R A Niederman; R van Grondelle
Journal:  Proc Natl Acad Sci U S A       Date:  2001-02-20       Impact factor: 11.205

4.  Triplet excited state spectra and dynamics of carotenoids from the thermophilic purple photosynthetic bacterium Thermochromatium tepidum.

Authors:  Dariusz M Niedzwiedzki; Masayuki Kobayashi; Robert E Blankenship
Journal:  Photosynth Res       Date:  2011-01-13       Impact factor: 3.573

5.  Carotenoid Singlet Fission Reactions in Bacterial Light Harvesting Complexes As Revealed by Triplet Excitation Profiles.

Authors:  Jie Yu; Li-Min Fu; Long-Jiang Yu; Ying Shi; Peng Wang; Zheng-Yu Wang-Otomo; Jian-Ping Zhang
Journal:  J Am Chem Soc       Date:  2017-10-26       Impact factor: 15.419

6.  The LH2 complexes are assembled in the cells of purple sulfur bacterium Ectothiorhodospira haloalkaliphila with inhibition of carotenoid biosynthesis.

Authors:  Aleksandr Ashikhmin; Zoya Makhneva; Andrey Moskalenko
Journal:  Photosynth Res       Date:  2013-10-27       Impact factor: 3.573

7.  Singlet-triplet fission of carotenoid excitation in light-harvesting LH2 complexes of purple phototrophic bacteria.

Authors:  I B Klenina; Z K Makhneva; A A Moskalenko; N D Gudkov; M A Bolshakov; E A Pavlova; I I Proskuryakov
Journal:  Biochemistry (Mosc)       Date:  2014-03       Impact factor: 2.487

8.  Carotenoid triplet yields in normal and deuterated Rhodospirillum rubrum.

Authors:  H Rademaker; A J Hoff; R van Grondelle; L N Duysens
Journal:  Biochim Biophys Acta       Date:  1980-09-05
  8 in total

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