RBBI genes are wound inducible. The conserved region of RBBI2-3 (350 bp) was used as a probe to detect transcripts of all of the RBBI2 and RBBI3 members after the onset of wound induction. 1 through 5, Wound-treated samples after 0, 0.5, 1, 4, and 12 h of culture, respectively, in Murashige and Skoog liquid medium; C, the wound-treated sample after a 4-h culture in distilled water as control.