However, the genetically modified (GM) bacteria are not acceptable to use in food, medicine, and animal husbandry due to the presence of antibiotic resistance genes in plasmids.

• 这些微生物的克隆、表达载体往往含有1个或多个抗生素抗性筛选标记，其抗药性因子的可转移性将危害生物安全。