Figure 5

Differential expression of potassium absorption and assimilation related genes indicate their role under As and Si exposure in shoot and root of Oryza sativa var. IR64 at 7 and 15 d. Figure shows relative expression profile of potassium channel protein (KAT1) and potassium transporter protein (HAK10). All values are means of three replicates (n = 3, ±SD) and repeated twice. Different letters indicate the significant mean difference (p < 0.05) between each treatment. The small latter (i.e. a, b, c and d) indicates the significant difference between treatment in same tissue type while capital latter (i.e. A and B) indicates the significant difference between duration among the same treatment in same tissue type. The endogenous actin gene of rice was used to normalize the genes relative to control.