【摘要】 为了研究TDZ在植物器官发生中的生理作用，用不同浓度的TDZ替代MS中的BA，发现仅用1／50BA浓度（0．1mg／L）的TDZ处理，已相当于用BA处理所得芽数，可见它具有很强的细胞分裂素活性；但是TDZ又能显著促进乙烯形成，较低浓度时抑制莴苣的器官发生，可能此时乙烯起着主导作用。更多还原

【Abstract】 In order to study physiological function of TDZ in plant organogenesis, we used TDZ in different concentration as a substitute for BA in MS. We found that TDZ is the most active cytokinin, only 0.002 mg/L TDZ can get almost equal number of buds promoted in the medium with 0.1mg/L BA. But the formation of ethylene was found to be promoted greatly. The lower concentration of TDZ inhibited organogenesis of Lactuca sativa L. which might caused by ethylene.更多还原