外源乙烯利、锌协同促进长春花叶片中长春碱的含量

Exogenous Ethephon and Zinc Synergistically Increased Vinblastine Levels in Catharanthus roseus Leaves

摘要: 药用植物长春花叶片中含有的长春碱在外源锌胁迫条件下其含量有一定程度上的增加。而在此基础上加入外源乙烯利后的协同作用下，更加促进了长春碱含量的增加，并且随着处理浓度的增加使之呈现出规律性变化。在外源锌和乙烯利的协同作用条件下，长春花叶片的干物质积累以及乙烯气体释放量等参数也有显著提高。

Abstract: Under Zinc (Zn) stress conditions, the production of vinblastine was increased in the medicinal plant Catharanthus roseus leaves. The combinational treatment with Zn and ethephon further promoted vinblastine accumulation in C. roseus leaves compared with Zn-stressed plants. This elevation of vinblastine induced by ethephon was dependent on the dose of exogenous ethephon. Besides, the dry biomass accumulation of leaves and ethylene release were also increased significantly in Catharanthus roseus seedlings affected by the combined treatment with exogenous Zn and ethephon.