Fig. 6.

Delay of leaf senescence in the ore14-1 mutant during senescence accelerated by oxidative stress. The third and fourth rosette leaves were detached at the age of 12 d and incubated under continuous light in MES buffer alone (A) and with 15 mM hydrogen peroxide (B). Chlorophyll content and photochemical efficiency are presented as average per cent values ±SD, relative to those of leaves incubated in light (n=24). DAT, days after treatment.