Fig. 2From: Flavonoids and darkness lower PCD in senescing Vitis vinifera suspension cell culturesCell death in V. vinifera (cv. Limberger) suspension cell cultures evaluated by FDA staining. Panel a GSC (b, d) and RSC (a, c) were grown under light conditions for 6 days. After staining with FDA, they were analyzed under fluorescent (c, d) or visible (a, b) light. Panel b time-course of total cell death in GSC and RSC, grown under light or dark conditions, and sampled at day 0, 3 and 6, respectively. The percentage of dead cells was calculated by the ratio between FDA-stained and total cell number. Bars are means ± S.D. of at least three different experiments. Different letters indicate a significant difference (P ≤ 0.05), evaluated by ANOVA testBack to article page