在低浓度时，ROS能诱导防御基因的表达和引起适应反应；在高浓度时，引起细胞死亡。
At low concentrations ROS induce expression of defence genes and adaptive response, at high concentrations cell death is initiated.
着重叙述昆虫神经中枢对于植物理化特性所产生的感觉内导的综合作用，植物蒙受虫害后的补偿作用及由此诱导所产生的化学防御作用。
Emphasis is laid on the integration of sensory informations in the central nerve system of insects, plant compensation for insect damage, and induction of chemical defence in plants by herbivory.
结果表明：经植物激活蛋白诱导处理后，防御酶活性明显增强。
Results show the activities of defense enzyme in tomato leaves increased obviously.
本文重点对虫害诱导的防御反应途径、挥发物的合成、诱导挥发物释放的激发子等进行了综述。
Here, we give a review on the herbivore-induced signaling pathways resulting in a defense response, the production of volatiles and specific elicitors.
通过诱导因子激发植物本身的防御体系而获得的局部或系统的抗病能力，称植物诱导抗病性。
Local and systemic resistance to diseases triggered by various inducers is called induced disease resistance of plant.
近年发现，它能诱导中性粒细胞、巨噬细胞和肥大细胞等免疫细胞的凋亡，从而逃避宿主的第一道免疫防御机制。
Recently, it has been found that the bacteria can induce apoptosis of the immunocytes such as neutrophils, macrophages and mast cells to escape from the first immune defense mechanism of the host.
植物在遭受到机械损伤或昆虫取食后释放出的伤诱导挥发物，除了具有间接防御和直接防御功能外，还具有作为报警信号在植株间传递伤害信息的作用。
Both mechanical damage and insect herbivory make plants emit damage-induced volatiles which not only have the functions of indirect and direct defenses but also can server as interplant.
多种信号途径参与昆虫取食诱导的植物防御反应，它们之间的相互作用协同或拮抗。
Multiple signaling transduction pathways are involved in plant defense responses to insect herbivores, and they can interact with each other, either synergistically or antagonistically.
植食性昆虫取食诱导植物产生的防御作用具有空间和时间效应。
Plant defenses induced by herbivorous insects can be effective to some extent in space and time according to the research development in this field.
通过不同浓度和不同诱导时间两种处理方式，测定了壳低聚糖和L - C对黄瓜叶片中过氧化物酶、多酚氧化酶和苯丙氨酸解氨酶等防御酶的诱导效果。
Activities of the defense enzymes involved in POD, PPO and PAL induced by COS and L-C were measured by two different treatments of different concentrations and different induced time.
防御素或组成性表达或被细菌和炎症介质所诱导。
Defensins are either constitutively produced or induced by bacteria and inflammatory mediators.
目前农业研究领域中，对靶标害虫诱导寄主产生化感防御作用的研究是一个热点。
The research of plant allelopathy that caused by target pest is a hot subject in the agricultural research field now.
目前农业研究领域中，对靶标害虫诱导寄主产生化感防御作用的研究是一个热点。
The research of plant allelopathy that caused by target pest is a hot subject in the agricultural research field now.
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