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Journal Article
Review
Oxygenic Photosynthesis in Far-Red Light: Strategies and Mechanisms.
Annual Review of Physical Chemistry 2024 Februrary 22
Oxygenic photosynthesis, the process that converts light energy into chemical energy, is traditionally associated with the absorption of visible light by chlorophyll molecules. However, recent studies have revealed a growing number of organisms capable of using far-red light (700-800 nm) to drive oxygenic photosynthesis. This phenomenon challenges the conventional understanding of the limits of this process. In this review, we briefly introduce the organisms that exhibit far-red photosynthesis and explore the different strategies they employ to harvest far-red light. We discuss the modifications of photosynthetic complexes and their impact on the delivery of excitation energy to photochemical centers and on overall photochemical efficiency. Finally, we examine the solutions employed to drive electron transport and water oxidation using relatively low-energy photons. The findings discussed here not only expand our knowledge of the remarkable adaptation capacities of photosynthetic organisms but also offer insights into the potential for enhancing light capture in crops. Expected final online publication date for the Annual Review of Physical Chemistry , Volume 75 is April 2024. Please see https://www.annualreviews.org/page/journal/pubdates for revised estimates.
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