The Photosynthetic Apparatus and Chlorophyll Fluorescence. An Introduction

  • G. Heinrich Krause
  • Engelbert Weis


An introduction to the basic relationship between chlorophyll a fluorescence yield and functioning of the photosynthetic apparatus is given. The principles governing the fluorescence decline by photochemical and non-photochemical mechanisms are summarized. Several ways of non-photochemical fluorescence quenching, related to the energization of the thylakoid membrane (qE), to the phosphorylation of the light harvesting complex of photosystem II (qT), and to photoinhibition of photosynthesis (qI) are discussed.

Key words

fluorescence of chlorophyll in vivo fluorescence quenching light harvesting complex photoinhibition of photosynthesis photosystem 





maximum fluorescence


initial fluorescence

FV = FM - FO

maximum variable fluorescence


light harvesting chlorophyll protein complex of photosystem II






primary and secondary quinone-type electron acceptors of photosystem II


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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • G. Heinrich Krause
    • 1
  • Engelbert Weis
    • 2
  1. 1.Institute for Biochemistry of PlantsUniversity of DüsseldorfDüsseldorf 1Germany
  2. 2.Institute for Ecological Plant PhysiologyUniversity of DüsseldorfGermany

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