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Photochemical reactions in biological light perception and regulation

  • Lars Olof Björn
  • Lars Olof Björn
Publishing year: 2008
Language: English
Pages: 197-222
Document type: Book chapter
Publisher: Springer

Abstract english

Many photochemical reactions involved in the sensing of and regulation by light and ultraviolet radiation by organisms consist of cis-trans (and trans-cis) isomerisations. This chapter starts with a description of these, and then goes on to the blue-light receptors crypto-chrome and phototropin, which use other chemical mechanisms, and concludes with a discus-sion of ultraviolet-B receptors.


  • Biological Sciences
  • Urocanic acid Cis-trans isomerization Trans-cis isomerization Eukaryotic Rhodopsin Archaean PYP Photoactive yellow protein Xanthopsin Phytochrome Cyanobacteria Chromatic adaptation Violaxanthin Stomata Stomatal regulation Cryptochrome Phototropin Blue-light sensor UV-B receptor Action spectrum


  • Photobiology
  • Photobiology-lup-obsolete
  • ISBN: 978-0-387-72654-0
Lars Olof Björn
E-mail: lars_olof [dot] bjorn [at] biol [dot] lu [dot] se

Professor emeritus

Molecular Cell Biology

+46 46 222 72 53