[目的]研究1-MCP处理对毛笋贮藏期间活性氧代谢及木质化的影响.[方法]用25 μl/L的1-MCP密闭处理毛笋24 h,以来加处理的为对照,然后在10℃下贮藏10 d,对毛笋贮藏期间的相关指标进行测定.[结果]1-MCP处理降低了贮藏期间毛笋的乙烯生成,延缓了组织硬度的增加,抑制了MDA、H2O2和O2-·的积累,同时保持了较高的SOD、CAT和APX活性.[结论]1-MCP通过调控活性氧代谢平衡延缓毛笋采后木质化.%[ Objective ] To study the effect of 1 -MCP treatment on the active oxygen metabolism and lignification of bamboo shoots. [ Method ] The bamboo shoots were fumigated with 25 μl/L 1-MCP and stored at 10 ℃ for 10 days. The shoots without any reagent were used as control. The related indices of bamboo shoots were determined during the storage. [ Result ] 1 -MCP treatment effectively reduced the formation of ethylene and prevented an increase in shoots firmness. Furthermore, it also inhibited the accumulation of O2 -· ,MDA and H2O2 ,and maintained significantly higher activities of SOD,CAT and APX. [Conclusion] 1-MCP treatment may maintain the balance between the formation and detoxification of active oxygen species and delay the lipid peroxidation process,thereby preventing the development of flesh lignification of bamboo shoots.
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