Figure 3. Stability of recombinant CTB-TM-1 expressed in wheat seeds after long-term storage at ambient temperature (transgenic line: TM-1-2) . The recombinant CTB-TM-1 was extracted from seeds powder stored immediately after harvest and six months later as described in method and the expression level was quantified by western blot with anti-CTB antibody. NS: non-significant (P >0.05)