昆虫葡萄糖氧化酶(glucose oxidase,GOX)主要由下唇腺产生,含量很高,经由吐丝器排出体外,是唾液中的主要酶类.越来越多的证据表明,昆虫唾液中的GOX在植食性昆虫与寄主植物的相互关系和协同进化中发挥重要的作用,是它们互作的纽带.在二者的互作中,植食性昆虫的GOX可以显著抑制寄主植物的防御反应,也可以诱导寄主植物的直接或间接防御;而不同的寄主植物对同一种昆虫或相同植物对不同种昆虫GOX的影响也存在较大差异,特别是植物中的营养物质,如蛋白质和糖,都会对GOX产生影响,这种影响发生在转录、翻译或翻译后水平.同时,植物中毒素对GOX的影响也不容忽视.主要综述了昆虫GOX的基本特性、与寄主植物防御之间的关系以及食物因子对GOX的影响,以期为深入探讨植食性昆虫与寄主植物的协同进化机理提供有价值的信息.%Glucose oxidase(GOX)is one of the most abundant enzymes of caterpillar labial salivary gland and saliva , produced mainly by the labial glands and secreted from the spinneret. More and more evidences have revealed that GOX plays an important role in herbivore-host plant interactions and co-evolution. It acts as a link between them. In the interactions,phytophagous caterpillar GOX of salivary labial gland can inhibit the defensive substances in plants,but can also induce direct or indirect host plant defences. The effects of different host plants on GOX of the same insect species or the same plant on GOX of different insect species are quite different,especially nutritions in plant,such as protein and carbohydrate,can affect transcript,translational and/or post-translational regulation of the GOX. The effect of plant toxins on GOX also can not be ignored. The present papers mainly focus on the current status of knowledge regarding the role of GOX. Besides a brief information on basic features ,the role played by GOX in the relationships between herbivore and host plant defence,and the effects of food factors on GOX are reviewed,in order to provide valuable information for further study on the mechanism of co-evolution between phytophagous insects and their host plants.
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