Abstract:
In this research,the ipt gene driven by 35S promoter was transferred into Eucommia ulmoides Oliv. via agrobacteriummediated transformation, and the influence of exogenous gene on shoot regeneration was further investigated in the current work. The results showed that compared with control (iptfree) line (0.93%), no significant difference in shoot regeneration efficiency was obtained from the ipt transgenic lines (0.96%). However, ipt gene enhanced the shoot number per explant, which was 31, obviously higher than that of control (1.9). Thus ipt gene enhanced shoot inductivity of E. ulmoides , which was 2.95%, evidently high than CK 1.68%. The present research firstly prove that ipt gene can substantially enhance shoot regeneration of E. ulmoides and this lays a foundations for promoting genetic transformation efficiency of E. ulmoides.