reviewPLANT PHYSIOLOGYFeb 10, 2016GREEN OA

Nonphotochemical Chlorophyll Fluorescence Quenching: Mechanism and Effectiveness in Protecting Plants from Photodamage

AVAlexander V. Ruban

Queen Mary University of London

PubMed
Indexed incrossrefpubmed

Abstract

We review the mechanism underlying nonphotochemical chlorophyll fluorescence quenching (NPQ) and its role in protecting plants against photoinhibition. This review includes an introduction to this phenomenon, a brief history of major milestones in our understanding of NPQ, definitions, and a discussion of quantitative measurements of NPQ We discuss the current knowledge and unknown aspects in the NPQ scenario, including the following: ΔpH, the proton gradient (trigger); light-harvesting complex II (LHCII), PSII light harvesting antenna (site); and changes in the antenna induced by ΔpH (change), which lead to the creation of the quencher We conclude that the minimum requirements for NPQ in vivo are ΔpH, LHCII…

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Authors

1
  • AV
    Alexander V. RubanCorresponding

    Queen Mary University of London

Topics & keywords

Topics
Keywords
  • Photoinhibition
  • Chlorophyll fluorescence
  • Quenching (fluorescence)
  • Non-photochemical quenching
  • Biophysics
  • Photoprotection
  • Chemistry
  • Chlorophyll
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