Effect of elevated CO2 on the interaction between invasive thrips, Frankliniella occidentalis, and its host kidney bean, Phaseolus vulgaris
Effect of elevated CO2 on the interaction between invasive thrips, Frankliniella occidentalis, and its host kidney bean, Phaseolus vulgaris
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二氧化碳浓度升高对入侵蓟马、西花蓟马及其寄主芸豆、菜豆之间相互作用的影响
DOI：
10.1002/ps.5064
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Gui Fu-rong
中科院分区：
文献类型：
--
作者：
Qian Lei;He Shu-qi;Liu Xiao-wei;Huang Zu-jun;Chen Fa-jun;Gui Fu-rong
全球农作物生产中的有害入侵害虫。为了研究二氧化碳浓度升高如何影响以西花蓟马为食的菜豆，特别是植物防御和蓟马反防御之间的相互作用，测量了菜豆的营养成分和抗氧化酶活性，以及成年蓟马的解毒酶活性。
结果：二氧化碳浓度升高增加了未受蓟马侵害的植物中可溶性糖、可溶性蛋白和游离氨基酸的含量，并降低了这些植物中超氧化物歧化酶（SOD）和过氧化物酶（POD）的活性。蓟马取食降低了植物的营养成分，并提高了它们的SOD、过氧化氢酶和POD活性。植物营养成分和抗氧化酶活性的变化在蓟马取食时间上呈现相反的趋势。取食后，蓟马体内的乙酰胆碱酯酶、羧酸酯酶和混合功能氧化酶活性增加以对抗植物的防御。蓟马密度越大，诱导的植物防御越强，反过来，蓟马体内的解毒酶水平随着蓟马数量的增加而升高。
结论：我们的研究表明，西花蓟马不仅能诱导与抗氧化相关的植物防御，还能诱导蓟马体内的解毒酶。二氧化碳浓度升高可能既增强植物对蓟马攻击的防御，又增加蓟马对植物防御的反防御。
destructiveinvasive pest of crop production worldwide. Toinvestigate how elevated CO2 affects F. occidentalis fed withPhaseolus.vulgaris and, in particular, the interaction between plant defense and thrips anti-defense, nutrient content and antioxidant.enzyme activity of P. vulgaris were measured, as well as the detoxifying enzyme activity of adult thrips..RESULTS: Elevated CO2 increased the soluble sugar, soluble protein and free amino acid content in non thrip-infested plants,.and decreased superoxide dismutase (SOD) and peroxidase (POD) activity in these plants. Feeding thrips reduced the nutrient.content in plants, and increased their SOD, catalase and POD activity. Variations in nutrient content and antioxidant enzyme.activity in plants showed an opposite tendency over thrip feeding time. After feeding, acetylcholinesterase, carboxylesterase,.and mixed-function oxidase activity in thrips increased to counter the plant defenses. Greater thrip densities induced stronger.plant defenses and, in turn, detoxifying enzyme levels in thrips increased over thrip numbers..CONCLUSION: Our study revealed that F. occidentalis can induce not only an antioxidant-associated plant defense, but also.detoxifying enzymes in thrips. Elevated CO2 might both enhance plant defense against thrip attack, and increase thrip.anti-defense against plant defense