3.4. Anatomical observation
The cross section of fruit tissues before and after culture at
20, 25 and 30 8C for 3, 10 and 14 days are shown in Fig. 1
Anthocyanin particles were limited to the cells of the upper
layers of the flesh and skin. There were not many differences
among the untreated and the treated ones in term of anthocyanin
density on the third day after treatment. The size of the treated
cells, however, was greater than that of untreated cells. Cell size
continued to increase with time. Density of red color was
greater in the 20 and 25 8C treated discs than in those at 30 8C.