Figure 2.

ABA induces the expression of four RePRP genes in rice roots. A, Relative levels of RePRP mRNA (means ± sd) in different tissues of wild-type rice were determined by quantitative RT-PCR and normalized with the ACTIN mRNA. Rt, Root; Bl, blade; Sh, sheath; St, stem; Se, seed; Pa, young panicle. B, Roots were collected from 30 individuals of 2-week-old wild-type rice plants treated with 20 μm ABA for 0.5 to 3 d, and relative levels of RePRP mRNA (means ± sd) were determined by quantitative RT-PCR using gene-specific primers.