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Enhancing solar spectrum utilization in photosynthesis: exploring exciton and site energy shifts as key mechanisms.
Timpmann, Kõu; Rätsep, Margus; Freiberg, Arvi.
Afiliação
  • Timpmann K; Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411, Tartu, Estonia.
  • Rätsep M; Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411, Tartu, Estonia.
  • Freiberg A; Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411, Tartu, Estonia. arvi.freiberg@ut.ee.
Sci Rep ; 13(1): 22299, 2023 12 15.
Article em En | MEDLINE | ID: mdl-38102394
ABSTRACT
Photosynthesis is a critical process that harnesses solar energy to sustain life across Earth's intricate ecosystems. Central to this phenomenon is nuanced adaptation to a spectrum spanning approximately from 300 nm to nearly 1100 nm of solar irradiation, a trait enabling plants, algae, and phototrophic bacteria to flourish in their respective ecological niches. While the Sun's thermal radiance and the Earth's atmospheric translucence naturally constrain the ultraviolet extent of this range, a comprehension of how to optimize the utilization of near-infrared light has remained an enduring pursuit. This study unveils the remarkable capacity of the bacteriochlorophyll b-containing purple photosynthetic bacterium Blastochloris viridis to harness solar energy at extreme long wavelengths, a property attributed to a synergistic interplay of exciton and site energy shift mechanisms. Understanding the unique native adaptation mechanisms offers promising prospects for advancing sustainable energy technologies of solar energy conversion.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article