利用转座子Tn5诱变技术对荧光假单胞菌(Pseudomonas fluorescens)进行遗传改良,得到的基因工程菌株、在田间试验中防治小麦全蚀病(Gaeumannomyces graminis var.trtici)取得显著的防病增产效果,这在国内外还是第一次。 近十年来、粮食、经济作物的土传病害发生十分普遍,为害逐年加重,已成为作物稳产高产的重要限制因素。小麦全蚀病等重要土传病害.既没有象小麦锈病那样的抗病品种,又缺乏经 Genetic engineering of Pseudomonas fluorescens was carried out by using the transposon Tn5 mutagenesis technique. In the field experiment, the control of Gaeumannomyces graminis var. Trtici achieved remarkable disease-resistant and yield-increasing Effect, this is the first time at home and abroad. Over the past decade, soil-borne diseases of food and cash crops have become very common and their harm has been increasing year by year, which has become an important limiting factor for the steady and high-yield crops. Wheat eclogite and other important soil-borne diseases.No wheat disease like wheat disease-resistant varieties, but also the lack of