Genetic manipulation of carotenoid biosynthesis and photoprotection.

  title={Genetic manipulation of carotenoid biosynthesis and photoprotection.},
  author={Barry James Pogson and Heather M. Rissler},
  journal={Philosophical transactions of the Royal Society of London. Series B, Biological sciences},
  volume={355 1402},
There are multiple complementary and redundant mechanisms to provide protection against photo-oxidative damage, including non-photochemical quenching (NPQ). NPQ dissipates excess excitation energy as heat by using xanthophylls in combination with changes to the light-harvesting complex (LHC) antenna. The xanthophylls are oxygenated carotenoids that in addition to contributing to NPQ can quench singlet or triplet chlorophyll and are necessary for the assembly and stability of the antenna. We… CONTINUE READING


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