16) It showed that supplementation with the xanthophyll
carotenoids, including lutein, zeaxanthin, and meso-zeaxanthin, was consistently associated with significant increases in macular pigment optical density.
Influence of source and ratio of xanthophyll
pigments on broiler chicken pigmentation andperformance.
non photochemical quenching (NPQ) caused by xanthophyll
cycle via heat dissipation during transport form antenna to reaction centers of PSII (RCII) and it is caused by conformational changes in PSII complex (Horton & Ruban, 2005; Lavaud & Kroth, 2006).
The first is called xanthophyll
, which is yellow in colour.
Shifts in light ultimately cause tiny shifts in the structure of the xanthophyll
molecules--to make them either feed light to chlorophyll, or shunt light away.
Arabidopsis genotypes with differing levels of psbS expression differ in Photosystem II quantum yield, xanthophyll
cycle pool size, and aboveground growth.
Behaviour and a functional xanthophyll
cycle enhance photo-regulation mechanisms in the solar-powered sea slug Eysia tintida (Risso, 1818).
Diaz M, Bali E, Luttge U (1990) Stress-induced accumulation of the xanthophyll
rhodoxanthin in leaves of Aloe vera.
ASTAXANTHIN belongs to the xanthophyll
group of carotenoids, or the oxygenated carotenoids (see other members of the group in Fig.
However, when incident light energy exceeds that needed for photosynthesis, the carotenoids that compose the xanthophyll
cycle dissipate excess energy, thus avoiding damage to the photosynthetic system (Demmig-Adams and Adams, 1996).
Diatoxanthin and Diadino were both analysed to track diatoms as in their xanthophyll
cycle Diadino could be transformed to Diato at intensive light (Patoine & Leavitt 2006).
Carotenoid composition in Rhodophyta: insights into xanthophyll
regulation in Corallina elongata.