论文部分内容阅读
在长期的协同进化中,植物建立起应对昆虫取食为害的精密而又复杂的防御机制,植物转录组调控中防御应答基因的表达及防御物质的合成因不同的昆虫取食方式而异。一般来说,咀嚼式口器昆虫取食时造成大面积组织伤害,可诱导植物产生伤害反应;而刺吸式口器昆虫因其特殊的口针取食,诱导植物激活病原体相关的防御途径。不同的防御途径激活不同的识别机制和信号途径。本文从信号识别和转导上综述了不同食性的昆虫取食植物时所引发的防御反应,分析了昆虫-植物相互作用关系的分子机制。
In long-term co-evolution, plants establish a sophisticated and complex defense mechanism against insect infestation. The expression of defense response genes and the synthesis of defense substances in plant transcriptomes vary with different insect feeding patterns. In general, chewing insects consume large areas of tissue damage when ingested and can induce plant-induced injury reactions. However, spiked mouth-opening insects, due to their special needles, induce plant defense-related pathways that activate pathogens. Different defense pathways activate different recognition mechanisms and signaling pathways. This review summarizes the defense responses elicited by different feeding habits of insects on the basis of signal recognition and transduction, and analyzes the molecular mechanism of the insect-plant interaction.