scholarly journals Harvesting far-red light: Functional integration of chlorophyll f into Photosystem I complexes of Synechococcus sp. PCC 7002

2020 ◽  
Vol 1861 (8) ◽  
pp. 148206 ◽  
Author(s):  
Martijn Tros ◽  
Luca Bersanini ◽  
Gaozhong Shen ◽  
Ming-Yang Ho ◽  
Ivo H.M. van Stokkum ◽  
...  
Keyword(s):  
Photosystem I ◽  
Functional Integration ◽  
Red Light ◽  
Synechococcus Sp ◽  
Chlorophyll F

scholarly journals The structure of Photosystem I acclimated to far-red light illuminates an ecologically important acclimation process in photosynthesis

2020 ◽  
Vol 6 (6) ◽  
pp. eaay6415 ◽  
Author(s):  
Christopher Gisriel ◽  
Gaozhong Shen ◽  
Vasily Kurashov ◽  
Ming-Yang Ho ◽  
Shangji Zhang ◽  
...  
Keyword(s):  
Photosystem I ◽  
Binding Sites ◽  
Structural Changes ◽  
Red Light ◽  
Oxygenic Photosynthesis ◽  
Cryo Electron Microscopy ◽  
Photosynthetic Proteins ◽  
Functional Differences ◽  
Light Utilization ◽  
Chlorophyll F

Phototrophic organisms are superbly adapted to different light environments but often must acclimate to challenging competition for visible light wavelengths in their niches. Some cyanobacteria overcome this challenge by expressing paralogous photosynthetic proteins and by synthesizing and incorporating ~8% chlorophyll f into their Photosystem I (PSI) complexes, enabling them to grow under far-red light (FRL). We solved the structure of FRL-acclimated PSI from the cyanobacterium Fischerella thermalis PCC 7521 by single-particle, cryo–electron microscopy to understand its structural and functional differences. Four binding sites occupied by chlorophyll f are proposed. Subtle structural changes enable FRL-adapted PSI to extend light utilization for oxygenic photosynthesis to nearly 800 nm. This structure provides a platform for understanding FRL-driven photosynthesis and illustrates the robustness of adaptive and acclimation mechanisms in nature.

Femtosecond infrared spectroscopy of chlorophyll f-containing photosystem I

2019 ◽  
Vol 21 (3) ◽  
pp. 1224-1234 ◽  
Author(s):  
Noura Zamzam ◽  
Marius Kaucikas ◽  
Dennis J. Nürnberg ◽  
A. William Rutherford ◽  
Jasper J. van Thor
Keyword(s):  
Infrared Spectroscopy ◽  
Photosystem I ◽  
Charge Separation ◽  
Light Harvesting ◽  
Red Light ◽  
Time Resolved ◽  
Time Resolved Infrared Spectroscopy ◽  
Chlorophyll F

Femtosecond time resolved infrared spectroscopy of far-red light grown photosystem I shows chlorophyll f contributions in light harvesting and charge separation.

scholarly journals Evidence that chlorophyll f functions solely as an antenna pigment in far-red-light photosystem I from Fischerella thermalis PCC 7521

2020 ◽  
Vol 1861 (5-6) ◽  
pp. 148184 ◽  
Author(s):  
Dmitry A. Cherepanov ◽  
Ivan V. Shelaev ◽  
Fedor E. Gostev ◽  
Arseniy V. Aybush ◽  
Mahir D. Mamedov ◽  
...  
Keyword(s):  
Photosystem I ◽  
Red Light ◽  
Antenna Pigment ◽  
Chlorophyll F

scholarly journals Quantitative assessment of chlorophyll types in cryo-EM maps of photosystem I adapted to far-red light

BBA Advances ◽  
2021 ◽  
pp. 100019
Author(s):  
Christopher J. Gisriel ◽  
Hao-Li Huang ◽  
Krystle Reiss ◽  
David A. Flesher ◽  
Victor S. Batista ◽  
...  
Keyword(s):  
Photosystem I ◽  
Quantitative Assessment ◽  
Red Light

scholarly journals PsaE Is Required for in Vivo Cyclic Electron Flow around Photosystem I in the Cyanobacterium Synechococcus sp. PCC 7002

1993 ◽  
Vol 103 (1) ◽  
pp. 171-180 ◽  
Author(s):  
L. Yu ◽  
J. Zhao ◽  
U. Muhlenhoff ◽  
D. A. Bryant ◽  
J. H. Golbeck
Keyword(s):  
Photosystem I ◽  
Electron Flow ◽  
Cyclic Electron Flow ◽  
Synechococcus Sp

scholarly journals Mobilization of Photosystem II Induced by Intense Red Light in the Cyanobacterium Synechococcus sp PCC7942

2005 ◽  
Vol 18 (2) ◽  
pp. 457-464 ◽  
Author(s):  
Mary Sarcina ◽  
Nikolaos Bouzovitis ◽  
Conrad W. Mullineaux
Keyword(s):  
Photosystem Ii ◽  
Red Light ◽  
Synechococcus Sp
Sign in / Sign up

Export Citation Format

Share Document