Trapping Dynamics in Photosystem I-Light Harvesting Complex I of Higher Plants Is Governed by the Competition Between Excited State Diffusion from Low Energy States and Photochemical Charge Separation

2017 ◽  
Vol 121 (42) ◽  
pp. 9816-9830 ◽  
Author(s):  
Egle Molotokaite ◽  
William Remelli ◽  
Anna Paola Casazza ◽  
Giuseppe Zucchelli ◽  
Dario Polli ◽  
...  
Keyword(s):  
Excited State ◽  
Photosystem I ◽  
Charge Separation ◽  
Complex I ◽  
Light Harvesting ◽  
Higher Plants ◽  
Low Energy ◽  
Light Harvesting Complex ◽  
State Diffusion ◽  
Energy States

Structure of plant photosystem I‐light harvesting complex I supercomplex at 2.4 Å resolution

2021 ◽  
Author(s):  
Jie Wang ◽  
Long‐Jiang Yu ◽  
Wenda Wang ◽  
Qiujing Yan ◽  
Tingyun Kuang ◽  
...  
Keyword(s):  
Photosystem I ◽  
Complex I ◽  
Light Harvesting ◽  
Light Harvesting Complex

scholarly journals Green Plant Photosystem I Binds Light-Harvesting Complex I on One Side of the Complex†

Biochemistry ◽  
2001 ◽  
Vol 40 (4) ◽  
pp. 1029-1036 ◽  
Author(s):  
Egbert J. Boekema ◽  
Poul Erik Jensen ◽  
Eberhard Schlodder ◽  
Jan F. L. van Breemen ◽  
Henny van Roon ◽  
...  
Keyword(s):  
Photosystem I ◽  
Complex I ◽  
Light Harvesting ◽  
Green Plant ◽  
Light Harvesting Complex

Influence of the Photosystem I−Light Harvesting Complex I Antenna Domains on Fluorescence Decay

Biochemistry ◽  
2006 ◽  
Vol 45 (22) ◽  
pp. 6947-6955 ◽  
Author(s):  
Enrico Engelmann ◽  
Giuseppe Zucchelli ◽  
Anna Paola Casazza ◽  
Doriano Brogioli ◽  
Flavio M. Garlaschi ◽  
...  
Keyword(s):  
Photosystem I ◽  
Complex I ◽  
Light Harvesting ◽  
Fluorescence Decay ◽  
Light Harvesting Complex

The structure of the Physcomitrium Patens Photosystem I Reveals a Unique Lhca2 Paralogue replacing Lhca4

2021 ◽  
Author(s):  
Yuval Mazor ◽  
Christopher Gorski ◽  
Reece Riddle ◽  
Hila Toporik ◽  
Zhen Da ◽  
...  
Keyword(s):  
Photosystem I ◽  
Light Harvesting ◽  
Higher Plants ◽  
Algal Species ◽  
Low Light ◽  
Light Harvesting Complex ◽  
Light Harvesting Complex Ii ◽  
Ancient Plants ◽  
Colonization Of Land ◽  
Green Lineage

The moss Physcomitrium patens diverged from green algae shortly after the colonization of land by ancient plants. This colonization posed new environmental challenges which drove evolutionary processes. The photosynthetic machinery of modern flowering plants is adapted to the high light conditions on land. Red shifted Lhca4 antennae are present in the photosystem I light harvesting complex of many green lineage plants but absent from P. patens. The Cryo-EM structure of the P. patens photosystem I light harvesting complex I supercomplex (PSI-LHCI) at 2.8 Å reveals that Lhca4 is replaced by a unique Lhca2 paralogue in moss. This PSI-LHCI supercomplex also retains the PsaM subunit, present in cyanobacteria and several algal species but lost in higher plants, and the PsaO subunit responsible for binding light harvesting complex II. The blue shifted Lhca2 paralogue and chlorophyll b enrichment relative to higher plants make the P. patens PSI-LHCI spectroscopically unique among other green lineage supercomplexes. Overall, the structure represents an evolutionary intermediate PSI with the crescent shaped LHCI common in higher plants and contains a unique Lhca2 paralogue which facilitates the mosses adaptation to low light niches.

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