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Leaf color and senescence phenotypes of the bcm nye quadruple mutant. A, Twenty-two-day-old plants were grown at 22°C under short-day conditions. B, Leaves before and 6 days after dark incubation. Seventh leaves from the top of 28-day-old plants grown at 22°C under short-day conditions were detached and incubated at 22°C in the dark. C and D, Changes in Chl content with time during dark incubation. Data indicate SPAD values and relative values to presenescent leaves. Scale bar: 1 cm.
