Cited by 1,649Spectroscopy and Quantum Chemical StudiesPhotosynthetic Processes and MechanismsPhotochemistry and Electron Transfer Studies

Coherently wired light-harvesting in photosynthetic marine algae at ambient temperature

Collini, Elisabetta, Wong, Cathy Y., Wilk, Krystyna E., Curmi, Paul M. G., Brumer, Paul, Scholes, Gregory D.·2010·Nature

Abstract

Photosynthesis makes use of sunlight to convert carbon dioxide into useful biomass and is vital for life on Earth. Crucial components for the photosynthetic process are antenna proteins, which absorb light and transmit the resultant excitation energy between molecules to a reaction centre. The efficiency of these electronic energy transfers has inspired much work on antenna proteins isolated from photosynthetic organisms to uncover the basic mechanisms at play. Intriguingly, recent work has documented that light-absorbing molecules in some photosynthetic proteins capture and transfer energy according to quantum-mechanical probability laws instead of classical laws at temperatures up to 180 K. This contrasts with the long-held view that long-range quantum coherence between molecules cannot be sustained in complex biological systems, even at low temperatures. Here we present two-dimensional photon echo spectroscopy measurements on two evolutionarily related light-harvesting proteins isolated from marine cryptophyte algae, which reveal exceptionally long-lasting excitation oscillations with distinct correlations and anti-correlations even at ambient temperature. These observations provide compelling evidence for quantum-coherent sharing of electronic excitation across the 5-nm-wide proteins under biologically relevant conditions, suggesting that distant molecules within the photosynthetic proteins are 'wired' together by quantum coherence for more efficient light-harvesting in cryptophyte marine algae.

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Crossref · 10.1038/nature08811

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  • In 2010, independently by the Engel and Scholes groups, similar coherent oscillations were detected at physiological temperatures in FMO and light-harvesting complexes of two species of marine cryptophyte algae.

    “An important development was the detection in 2010, independently by the Engel [44] and Scholes [45] groups, of similar coherent oscillations at physiological temperatures in FMO and light-harvesting complexes of two species of marine cryptophyte algae, respectively.”

    From The future of quantum biology (2018) · cites this paper as [45]

  • There is some evidence for proton tunneling in enzymes.

    “there is some evidence for proton tunneling in enzymes (see e.g. [8])”

    From Vibrations, quanta and biology (2013) · cites this paper as [8]

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Authors
Collini, E., Wong, C. Y., Wilk, K. E., Curmi, P. M. G., Brumer, P., & Scholes, G. D.
Affiliations
  • University of Toronto (CA)
  • UNSW Sydney (AU)
Corresponding author
Scholes, Gregory D.
Venue
Nature
Published
2010-02
Volume
463
Issue
7281
Pages
644-647
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1980799223
Cited by
1,649
References
31
Citations by year
2026: 50 · 2025: 50 · 2024: 70 · 2023: 62 · 2022: 62 · 2021: 56 · 2020: 91 · 2019: 90 · 2018: 102 · 2017: 117 · 2016: 113 · 2015: 122 · 2014: 132 · 2013: 159 · 2012: 143
FWCI
90.17
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Padua Research Archive (University of Padova) (submittedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
Keywords
quantum coherence, light harvesting, cryptophyte algae, antenna proteins, excitation energy transfer, room-temperature quantum coherence, photosynthesis
MeSH terms
Light, Models, Molecular, Photosynthesis, Protein Conformation, Quantum Theory, Temperature, Photons, Algal Proteins, Cryptophyta, Light-Harvesting Protein Complexes

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