Xanthophyll Cycle Functionality in Chlorella fusca Acclimated to Different Light Regimes

  • Ernesto Garcia-Mendoza
  • Bernd M. A. Kroon
  • Hans C. P. Matthijs
  • Luuc R. Mur


Light in excess is a major stress factor in plant and algae, resulting in photo inhibition and photooxodation in photosynthetic tissues (1). Dissipation of absorbed energy by means of the interconvertion of violuanthin (V) into antheraxanthin (A) and zeaxanthin (Z), the so called xanthophyll cycle, is one of the most important photoadaptation processes (PP) in plant and algae. A correlation of this cycle and non photochemical thermal (NPQ) dissipation has been found in a wide range of environmental conditions (water stress, CO2 deficiency, etc.,) and in a wide range of photon flux densities (2–3). Less work has been done on the importance of this PP in light dynamic (LDR) environments. This type of work is fundamental to investigate the photosynthetic performance of free floating photosynthetic organisms that could experience light fluctuations in time scales of less than one hour. In this work the importance of the xanthophyll cycle as a PP in C. fusca is described in different light regimes. The focus of this contribution is on LDR (oscillating) conditions.


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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • Ernesto Garcia-Mendoza
    • 1
  • Bernd M. A. Kroon
    • 2
  • Hans C. P. Matthijs
    • 1
  • Luuc R. Mur
    • 1
  1. 1.ARISE/MBUniversity of AmsterdamAmsterdamThe Netherlands
  2. 2.Alfred Wegener Institute for Polar and Marine ResearchBremerhavenGermany

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