3.2. Petal protein levels
The levels of water-soluble protein in the petals of control flowers
increased between day 2 and 3 (Fig. 1A), although the values
on day 1 and day 5 were not statistically different (statistical
not shown). The levels of water-insoluble proteins in the controls
slightly decreased (Fig. 1B). At the end of the experimental period
the levels were statistically different from the levels at the beginning
(statistical not shown). Ethylene treatment slightly altered
the levels of water-soluble proteins, but levels were the same at
the beginning and at the end of the experimental period (Fig. 1A).
Ethylene treatment, in contrast, resulted in a sharper decrease of
water-insoluble protein, compared to controls (Fig. 1B). Levels of
total protein in the petals were also slightly lower after ethylene
treatment (Fig. 1C)