本世纪七十年代以来,经过科学工作者的不懈努力,玉米、水稻、小麦和棉花等作物的单细胞培养和原生质体培养相继取得成功。而且在再生植株的基础上,通过DNA的转化,已在水稻、玉米等作物上成功地获得了转基因植株。水稻组织培养工作始于1964年,古桥首次用水稻幼苗茎尖诱导出愈伤组织。随后,以 Since the seventies of this century, single cell culture and protoplast culture of crops such as corn, rice, wheat and cotton have succeeded one after another through the unremitting efforts of scientists. Moreover, on the basis of regenerated plants, transgenic plants have been successfully obtained on rice, corn and other crops by DNA transformation. Rice tissue culture began in 1964, the ancient bridge for the first time with rice shoot tips induced callus. Then, with