At	Arabidopsis thaliana
FL	fluctuating light
HL	high light
LL	low light
NPQ	non-photochemical quenching
npq1	Arabidopsis thaliana mutant, see description in Materials and methods
npq4	Arabidopsis thaliana mutant, see description in Materials and methods
PsbS	photoprotective protein from the light harvesting complex family
WT	wild type
Zx	zeaxanthin
Ax	antheraxanthin
Vx	violaxanthin
VDE	violaxanthin de-epoxidase