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Identification of the primary electron donor in PS II of the Chl d‐dominated cyanobacterium Acaryochloris marina
The primary electron donor of photosystem (PS) II in the chlorophyll (Chl) d‐dominated cyanobacterium Acaryochloris marina was confirmed by delayed fluorescence (DF) and further proved by pigment contents of cells grown under several light intensities, indicating that Chl a is required for water oxidation in PS II. Expand
Ultrafast excitation relaxation dynamics of lutein in solution and in the light-harvesting complexes II isolated from Arabidopsis thaliana.
Ultrafast excitation relaxation dynamics and energy-transfer processes in the light-harvesting complex II of Arabidopsis thaliana were examined at physiological temperature using femtosecond time-resolved fluorescence spectroscopy and energy migration processes among Chl a or Chl b molecules were clearly resolved by kinetic analysis. Expand
Excitation energy transfer in carotenoid-chlorophyll protein complexes probed by femtosecond fluorescence decays
Abstract An energy transfer pathway in a carotenoid-chlorophyll a protein complex of dinoflagellates was studied by the femtosecond up-conversion method. The energy levels of the S 2 state ofExpand
Molecular structure and optical properties of carotenoids for the in vivo energy transfer function in the algal photosynthetic pigment system
The origin of the fluorescence is the optically forbidden S 1 state and its radiative lifetime is longer than that of carotenoids without a keto group, which is discussed in relation to the excited state of polyenes. Expand
Fluorescence properties of the chlorophyll d-dominated cyanobacterium Acaryochloris sp. strain Awaji
Abstract Fluorescence properties of the newly discovered chlorophyll (Chl) d -dominated cyanobacterium, Acaryochloris sp. strain Awaji were examined by a combination of steady state and theExpand
Photovoltaic properties of self-assembled monolayers of porphyrins and porphyrin-fullerene dyads on ITO and gold surfaces.
A systematic series of ITO electrodes modified chemically with self-assembled monolayers (SAMs) of porphyrins and porphyrin-fullerene dyads have been designed to provide valuable insight into theExpand
Excited-state properties of hypericin: electronic spectra and fluorescence decay kinetics
Hypericin (Hyp), the parent chromophore of the photoreceptor protein (stentorin) participates in photophobic movements in Stentor coeruleus. The photoreactivity in the lowest singlet excited state (SExpand
Excitation energy transfer in phycobilisomes at −196°C isolated from the cyanobacterium Anabaena variabilis (M-3): evidence for the plural transfer pathways to the terminal emitters
Excitation energy transfer in phycobilisomes at −196°C was studied by means of the time-resolved fluorescence spectroscopy in the picosecond time-range. Supplemental data were obtained from theExpand
Excitation energy flow in chlorosome antennas of green photosynthetic bacteria
Energy flow in whole cells of the thermophilic green photosynthetic bacterium Chloroflexus aurantiacus was studied by measurements of time-resolved fluorescence spectra in the picosecond time range,Expand