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Table 1 Emerson enhancement of oxygen evolution measured on WT and lut2.1 leaves.

From: Lutein is needed for efficient chlorophyll triplet quenching in the major LHCII antenna complex of higher plants and effective photoprotection in vivounder strong light

genotypes State II State I
WT 5.7 ± 0.9 28.8 ± 2.8
lut2.1 15.3 ± 3.3 19.1 ± 4.8
  1. O2 evolution was measured with the photoacoustic method (see Experimental Procedures for details). The Emerson enhancement was determined by comparing state I (obtained after 10 min. illumination with far-red light) to state II (obtained after 10 min. illumination with blue-green light).