Light harvesting in oxygenic photosynthesis: Structural biology meets spectroscopy

Roberta Croce*, Herbert van Amerongen

*Corresponding author for this work

Research output: Contribution to JournalReview articleAcademicpeer-review

Abstract

Oxygenic photosynthesis is the main process that drives life on earth. It starts with the harvesting of solar photons that, after transformation into electronic excitations, lead to charge separation in the reaction centers of photosystems I and II (PSI and PSII). These photosystems are large, modular pigment-protein complexes that work in series to fuel the formation of carbohydrates, concomitantly producing molecular oxygen. Recent advances in cryo–electron microscopy have enabled the determination of PSI and PSII structures in complex with light-harvesting components called “supercomplexes” from different organisms at near-atomic resolution. Here, we review the structural and spectroscopic aspects of PSI and PSII from plants and algae that directly relate to their light-harvesting properties, with special attention paid to the pathways and efficiency of excitation energy transfer and the regulatory aspects.

Original languageEnglish
Article numbereaay2058
Pages (from-to)1-1, 1-9
Number of pages10
JournalScience
Volume369
Issue number6506
DOIs
Publication statusPublished - 21 Aug 2020

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