Xanthophyll cycle pool size

Arsalane W, Rousseau EJ and Duval JC (1994) Influence ofthe pool size ofthe xanthophyll cycle on the effects of light stress and photoinhibition. Photochem Photobiol 60 237-243... 

C. Sun/Shade Acclimation, PS II Composition, and Functional Relevance of Xanthophyll Cycle Pool Size and Conversion State... 

Often, but not always, this is accompanied by an inaease in chlorophyll a/b ratio arising from a decline in LHCIIb content. The size ofthe pool, as a % total carotenoid varies from 15% to 30%. The upper limit might be defined by the number of binding sites on LHCII. It has been estimated that PS II in spinach (chlorophyll a/b = 3.5) has a binding site capacity of 18-21 xanthophyll cycle carotenoids Ruban et al., 1999). Measurements indicate... 

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