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Updated: Jan 23, 2026
11:55
In Vitro Reconstitution of Light-harvesting Complexes of Plants and Green Algae
Published on: October 10, 2014
18.9K
Structural analysis and comparison of light-harvesting complexes I and II
Xiaowei Pan1, Peng Cao1, Xiaodong Su1
1National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, PR China.
Biochimica Et Biophysica Acta. Bioenergetics
|June 24, 2019
Summary
Photosynthesis relies on photosystem II (PSII) and photosystem I (PSI) light-harvesting complexes (LHCs) to capture solar energy. Their structural and pigment variations are reviewed, impacting energy transfer efficiency in plants and algae.
Area of Science:
- Biochemistry
- Plant Biology
- Structural Biology
Background:
- Photosynthesis converts solar energy to chemical energy via photosystems.
- Photosystem II (PSII) and Photosystem I (PSI) utilize antenna systems for light capture.
- Light-harvesting complexes (LHCs) like LHCII and LHCI are key components.
Purpose of the Study:
- To review structural features and pigment properties of LHCs in PSII and PSI.
- To highlight variations in antenna size and subunit composition across organisms.
- To synthesize knowledge on light-harvesting mechanisms in photosynthesis.
Main Methods:
- X-ray crystallography of plant and algal LHCII and LHCI.
- Single-particle cryo-electron microscopy of photosynthetic complexes.
- Comparative structural analysis of light-harvesting systems.
Main Results:
- Detailed structural insights into plant and algal LHCII and LHCI.
- Characterization of pigment composition and binding within LHCs.
- Understanding of how antenna size and composition differ between PSII and PSI.
Conclusions:
- LHCs exhibit diverse structures and pigment properties crucial for efficient light harvesting.
- Structural variations in LHCs influence energy transfer in PSII and PSI.
- This review consolidates structural data on light-harvesting complexes in photosynthetic organisms.
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