RT-PCR analysis of chitinase (CHI2-1) gene expression on 2 days after treatments,
at various heat shock temperatures (40, 45, and 50 C) for 20 s for whole plants,
BIT (2-benzisothiazol-3(2H)-one,1,1-dioxide) treated, and non-treated control (NT)
plants. Numbers were normalized to the expression level of actin (Act). Error bars
indicate the standard error of four data replicates. Different letters indicate significant
difference between treatments.