Alteration of ABA and SA Levels in ABR1-OX Transgenic Arabidopsis Plants.
Endogenous ABA (A) and SA (B) levels in leaves of wild-type (WT) and ABR1-OX (line #1) plants inoculated with Pst DC3000 and Pst DC3000 (avrRpm1) (5× 104 cfu mL−1). Data are the means ± sd from three independent experiments. Asterisks indicate significant differences in ABA and SA levels, as determined by the two-tailed t test (P < 0.05). Total SA, free SA plus its glucoside (SAG); FW, fresh weight.