寡糖素诱导冬枣果实水杨酸信号变化的研究

The Research of Salicylic Acid Signal Transduction in Postharvest Jujube induced by Oligosaccharins

摘要:

以采后冬枣为实验对象，研究寡糖素诱导处理对冬枣果实抗病反应过程中水杨酸信号分子的影响。实验结果表明，冬枣果实在寡糖素诱导作用下，12 h内果实水杨酸含量升高，增加量达60.60%，至诱导后24 h果实内游离水杨酸含量急剧下降，水杨酸信号与果实钙离子通道的抑制作用相互协作，共同参与了寡糖素诱导的苯丙氨酸代谢酶活性升高过程。

Abstract:

The salicylic acid signal transduction pathways influence on postharvest fruit under oligosaccharins was studied in this paper. The results showed that, induced by exogenous inducer-oligosaccharins, endogenous salicylic acid content increased, which may play a role as signal molecules of antagonistic reaction in postharvest jujube. The signal transduction pathway of salicylic acid may be involved with the synthesis of nitric oxide, calcium ion channel and phenylalanine metabolism pathways and the PAL enzymes activities changed too.