The plant tissue is introduced to these genes via agrobacillus and in the callus culture, the callus resisting phytopathogen (bacteria and fungus) can be externally chosen.

• 植物组织通过农杆菌导入这些基因，并在愈伤组织期可以作体外选择抗植物病原菌（细菌和真菌）的愈伤组织；