scholarly journals Breaking the Red Limit: Efficient Trapping of Long-Wavelength Excitations in Chlorophyll-f-Containing Photosystem I

Chem ◽  
2020 ◽  
Author(s):  
Martijn Tros ◽  
Vincenzo Mascoli ◽  
Gaozhong Shen ◽  
Ming-Yang Ho ◽  
Luca Bersanini ◽  
...  
Keyword(s):  
Photosystem I ◽  
Long Wavelength ◽  
Chlorophyll F

Photochemistry beyond the red limit in chlorophyll f–containing photosystems

Science ◽  
2018 ◽  
Vol 360 (6394) ◽  
pp. 1210-1213 ◽  
Author(s):  
Dennis J. Nürnberg ◽  
Jennifer Morton ◽  
Stefano Santabarbara ◽  
Alison Telfer ◽  
Pierre Joliot ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Charge Separation ◽  
Red Light ◽  
Oxygenic Photosynthesis ◽  
Long Wavelength ◽  
Photosystems I And Ii ◽  
Biophysical Studies ◽  
A Charge ◽  
Photosystem I And Ii ◽  
Chlorophyll F

Photosystems I and II convert solar energy into the chemical energy that powers life. Chlorophyll a photochemistry, using red light (680 to 700 nm), is near universal and is considered to define the energy “red limit” of oxygenic photosynthesis. We present biophysical studies on the photosystems from a cyanobacterium grown in far-red light (750 nm). The few long-wavelength chlorophylls present are well resolved from each other and from the majority pigment, chlorophyll a. Charge separation in photosystem I and II uses chlorophyll f at 745 nm and chlorophyll f (or d) at 727 nm, respectively. Each photosystem has a few even longer-wavelength chlorophylls f that collect light and pass excitation energy uphill to the photochemically active pigments. These photosystems function beyond the red limit using far-red pigments in only a few key positions.

The origin of the long-wavelength fluorescence emission band (77°K) from photosystem I

1984 ◽  
Vol 235 (2) ◽  
pp. 618-627 ◽  
Author(s):  
T.Y. Kuang ◽  
J.H. Argyroudi-Akoyunoglou ◽  
H.Y. Nakatani ◽  
J. Watson ◽  
C.J. Arntzen
Keyword(s):  
Photosystem I ◽  
Emission Band ◽  
Fluorescence Emission ◽  
Long Wavelength

Properties of the Long-Wavelength Emitting Chlorophylls in Isolated Photosystem I Particles of Synechococcus sp.

1995 ◽  
pp. 1173-1176
Author(s):  
Lars-Olof Pålsson ◽  
Eberhard Schlodder ◽  
Rienk van Grondelle ◽  
Jan P. Dekker
Keyword(s):  
Photosystem I ◽  
Long Wavelength ◽  
Synechococcus Sp
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