以健壮燕麦 ( Avena sativa L.)为供体 ,宁春 4号小麦为受体 ,采用花粉管通道法进行外源 DNA导入。结果表明 ,变异株系在生育期、株高、穗长、结实小穗数、千粒重等性状上产生了明显的变异 ;酯酶和过氧化物酶同工酶谱带数与受体相比增加或减少 ,叶绿素含量和瞬间光合速率偏向供体或受体 ;并筛选到对小麦条锈病免疫或高抗的部分变异株 ,表明燕麦 DNA已导入到小麦中 ,并得到表达。 Avena sativa L. was used as donor, and Ningchun 4 was used as recipient. Pollen tube pathway was used to introduce exogenous DNA. The results showed that mutants had obvious variation in growth period, plant height, spike length, number of spikelets per spike and grain weight per 1000. The number of esterase and peroxidase isozyme bands was increased Or decreased, chlorophyll content and transient photosynthetic rate bias to the donor or acceptor; and screened to the wheat stripe rust immune or high resistance of some mutants, indicating that the oat DNA has been introduced into wheat and expressed.