Nature Communications (Feb 2023)

Visible light-exposed lignin facilitates cellulose solubilization by lytic polysaccharide monooxygenases

  • Eirik G. Kommedal,
  • Camilla F. Angeltveit,
  • Leesa J. Klau,
  • Iván Ayuso-Fernández,
  • Bjørnar Arstad,
  • Simen G. Antonsen,
  • Yngve Stenstrøm,
  • Dag Ekeberg,
  • Francisco Gírio,
  • Florbela Carvalheiro,
  • Svein J. Horn,
  • Finn Lillelund Aachmann,
  • Vincent G. H. Eijsink

DOI
https://doi.org/10.1038/s41467-023-36660-4
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 12

Abstract

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Degradation of plant biomass, comprised of cellulose and polyaromatic lignin, is promoted by light. Here, the authors show that light promotes lignin-catalyzed generation of hydrogen peroxide, which is used by redox enzymes to degrade cellulose.