
TY  - JOUR
A1  - Papagiannakis, Emmanouil 
A1  - Kennis, John T.M. 
A1  - van Stokkum, Ivo 
A1  - Cogdell, Richard J. 
A1  - van grondelle, rienk 
T1  - A new carotenoid-to-BChl energy transfer pathway in photosynthetic light harvesting
JF  - Science Access
JO  - 
Y1  - 2001
VL  - 3
IS  - 1
SP  - 
EP  - 
KW  - 
UR  - https://doi.org/10.1071/SA0403018 
N2  - Carotenoids play an important role in photosynthetic light harvesting and photoprotection. We have recently demonstrated that upon excitation of the carotenoid spirilloxanthin bound to the light harvesting complex of the purple photosynthetic bacterium Rs. rubrum, spirilloxanthin triplet states are generated with a high yield on a femtosecond to picosecond timescale (C.C. Gradinaru et al., (2001) Proc. Natl. Acad. Sci. (USA), 98, 2364-2369.). To obtain a better understanding of this surprising phenomenon, we have extended our studies to light harvesting complexes of different species of purple bacteria, and have performed a systematic study of the dynamic behavior of a range of carotenoids artificially incorporated into the LH complexes of the photosynthetic bacteria Rs. rubrum and Rhodobacter sphaeroides. 
ER  -

