Figure 6.
Effect of glycine betaine (GB, 0 and 50 mM) on the content of stevioside (A) and rebaudioside (Reb) A (B) and the expression level of the KAH (C), UGT74G1 (D), UGT76G1 (E), and UGT85C2 (F) genes of stevia leaves under NaCl (0, 25, and 50 mM) treatment. Values (means ± SD) followed by the same letter are not significantly different (p < 0.05; Duncan test).