The relationship between multiple UV-B perception mechanisms and DNA repair pathways in plants

Jessica J. Biever, Gary Gardner

Research output: Contribution to journalReview articlepeer-review

21 Scopus citations


UV-B radiation (280-320 nm) is a component of sunlight and a natural environmental stimulus for plants. The characterization of UVR8 (UV Resistance Locus 8) demonstrated that plants contain at least one UV-B-specific photoreceptor and signaling pathway. In plants, DNA damage caused by UV-B and the subsequent responses, historically, have often been considered general stress or non-photomorphogenic. Other UV-B-specific signaling pathways that function independently of the UVR8 photoreceptor suggest that multiple perception mechanisms exist in plants. Recently, however, plant perception of UV-B radiation and the initiation of photomorphogenic responses outside of the UVR8 pathway have been largely overlooked. Plant responses to UV-B are highly varied. Therefore, the existence of multiple perception pathways seems logical. The objective of this review is to highlight that the absorption of UV-B occurs through a variety of ways, for example through DNA, and induces photomorphogenic responses specific to that absorption that are distinct from the UVR8 signaling pathway.

Original languageEnglish (US)
Pages (from-to)89-99
Number of pages11
JournalEnvironmental and Experimental Botany
StatePublished - Apr 1 2016

Bibliographical note

Funding Information:
The authors would like to thank the Minnesota Agricultural Experiment Station , the University of Minnesota Graduate School , and the Plant Biological Sciences Graduate Program for financial support.

Publisher Copyright:
© 2016 Elsevier B.V.


  • Arabidopsis
  • Cell-cycle arrest
  • DNA repair
  • Photodimers
  • Photomorphogenesis
  • UV-B


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