Figure 4From: Ethylene is involved in pistil fate by modulating the onset of ovule senescence and the GA-mediated fruit set in ArabidopsisGUS expression under the control of the SAG12 gene promoter during unfertilised pistil development in ethylene signalling mutants. (A) GUS histochemical assay in unfertilised pistils of the SAG12:GUS line reveals onset of ovule senescence at 2 DPA, and that senescence progressed acropetally over the next two days. (B and C) GUS histochemical assay in the unfertilised pistils of the SAG12:GUS line in (B) ein2-5, and (C) ctr1-1. The onset of ovule senescence is delayed by 1 day in ein2-5 and is advanced by 1 day in ctr1-1. Senescence progression follows a similar kinetics as in the wild-type plant (A). Plants were in the cer6-2 background.Back to article page