Figure 2

Effect of small molecule inhibitors of ethylene signaling on flower senescence of cut roses. (A) Images of cut roses treated with senescence inhibitors silver nitrate or NOP-1, respectively. Representative photos of rose ornamentals treated with 1 mM silver nitrate or 0.5 mM NOP-1 on DAT 0, 3, 6, 9, 12 and 15. Controls treated with buffer only are depicted in the upper row. (B) Quantitative analysis of color change in petals after treatment with silver salt, NOP-1 peptide or buffer-only. Asterisks indicate significance level (**95%) using Student’s t-test.