Conclusion: Agrobacterium rhizogene can induce hairy roots from autotetraploid Isatis indigotica, and the obtained hairy roots can develop into regenerated plants.

• 结论:发根农杆菌可以诱导四倍体菘蓝长出毛状根，经诱导出的毛状根具有再生完整植株的能力。