Figure 4.

Extracellular Ca²⁺ entry is primarily involved in response to honey. The Ca²⁺ response to 2% BH was significantly reduced in the 0Ca²⁺ condition. The arrow shows the addition of honey after 60 s. Data are means ± s.e.m. of [Ca²⁺]_i traces recorded in different cells. Number of cells: buckwheat honey: 40 cells from 3 exp; buckwheat honey 0Ca²⁺: 30 cells from 3 exp. Insert. Mean ± s.e.m. of the Ca²⁺ peak response. Number of cells as before. Asterisks on bars indicate statistical differences with respect to CTRL determined by a Two-Way ANOVA followed by Siddak test (* p < 0.05; **** p < 0.0001).