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February 5, 2026Chemical Science2 citationsOpen Access

Dynamic-Structural-Distortion of Spheroidene Activates a Hidden 3A g − State Mediating Carotenoid-to-Bacteriochlorophyll Energy Transfer in Light-harvesting 2

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BPBo PengMCMingqing ChenTMTengfei Ma

Key Points

  • The study aims to explore how structural changes in spheroidene influence energy transfer to bacteriochlorophyll in photosynthesis.
  • Analyzed the energy transfer mechanisms in light-harvesting complex 2
  • Investigated the role of spheroidene and its structural dynamics
  • Explored the hidden S X intermediate state
  • Identified a hidden 3A g - state linked to enhanced energy transfer efficiency
  • Demonstrated that structural distortion of spheroidene is critical for activating the hidden state
  • Found that carotenoids are essential for extending the absorption range of photosynthesis

Abstract

Carotenoids extend the absorption range of photosynthesis and transfer excitation energy to (Bacterio-)chlorophylls with remarkable efficiency, yet the microscopic mechanism of this process, especially the role of the S X intermediate...

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Cite This Study

Peng et al. (2026) studied this question.

synapsesocial.com/papers/698435fff1d9ada3c1fb5786https://doi.org/10.1039/d5sc08508j
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