美国马萨诸塞州的国际生物技术公司的专家们宣布,他们首先将外源基因植入玉米中,使玉米具有抗虫性、抗除草剂、抗旱性和提高玉米营养价值已成为可能。植入的基因能成功地遗传给后代;这是世界上首次对单子叶的重要谷物,用遗传工程技术植入新性状的成功。公司宣称在移植到玉米细胞內的基因中,一种称为豇豆蛋白酶抑制因子,可促使玉米增强抗虫性,也有希望使一般玉米品种缺乏的色氨酸和赖氨酸基 Experts from international biotechnology companies in Massachusetts, USA, announced that it was possible to implant exogenous genes into maize first, to make them resistant to insects, to herbicides, to drought resistance and to the nutritional value of maize. The implanted gene can be successfully passed on to offspring; this is the first success in the world of implanting new traits with monocotyledonous cereals and genetic engineering techniques. The company claims that one of the genes transplanted into maize cells, called the cowpea inhibitor, promises corn to enhance its resistance to insects, as well as the tryptophan and lysine-deficient bases that general maize varieties lack