Fig. 5.

Delay of leaf senescence in the ore14-1/arf2-10 mutant during senescence accelerated by phytohormones. The third and fourth rosette leaves were detached at the age of 12 d and incubated under continuous light in MES buffer alone (A), with 50 μM ACC (B), 100 μM MJ (C), or 50 μM ABA (D). Chlorophyll content and photochemical efficiency are presented as average percent values ±SD, relative to those of leaves incubated in light; n=24. DAT, days after treatment.