A senescence-inhibition chimeric gene containing the specific promoter of S
AG(12) and IPT gene was transferred into rice with the biolistic method. Re
sults of PCR, Dot blotting and Southern blotting indicated that the chimeri
c gene had been integrated into rice genome. Analyses of GUS activity and c
ytokinin content in transgenic plants of rice and the observation of T-1 ge
neration plant at grain formation stage indicated that the foreign gene was
expressed.