构建了一个适合在水稻中表达含有抗菌肽Ｂ基因的转化载体（ｐＣＢ１），应用基因枪转化法将其导入水稻未成熟胚，获得了一些转基因水稻植株。根据对选择标记基因和目的基因的分子检测和抗病性测定，证明抗菌肽Ｂ基因已整合入转化水稻基因组并在转基因水稻中表达了抗病性。 A transformation vector (pCB1) containing the antimicrobial peptide B gene in rice was constructed and introduced into immature embryos of rice by gene gun transformation. Some transgenic rice plants were obtained. According to the molecular detection and disease resistance determination of the selectable marker gene and the target gene, it was proved that the antimicrobial peptide B gene has been integrated into the transformed rice genome and expressed the disease resistance in the transgenic rice.