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Aphid performance changes with plant defense mediated by Cucumber mosaic virus titer

文献类型： 外文期刊

作者： Shi, Xiaobin 1 ; Gao, Yang 1 ; Yan, Shuo 1 ; Tang, Xin 1 ; Zhou, Xuguo 3 ; Zhang, Deyong 1 ; Liu, Yong 1 ;

作者机构： 1.Hunan Acad Agr Sci, Key Lab Integrated Management Pests & Dis Hort Cr, Hunan Plant Protect Inst, Changsha 410125, Hunan, Peoples R China

2.Hunan Univ, Longping Branch, Grad Coll, Changsha 410125, Hunan, Peoples R China

3.Univ Kentucky, Dept Entomol, Lexin

关键词： Cucumber mosaic virus;Myzus persicae;Plant defense;Jasmonic acid;Salicylic acid

期刊名称：VIROLOGY JOURNAL （ 影响因子：4.099； 五年影响因子：3.719 ）

ISSN： 1743-422X

年卷期： 2016 年 13 卷

页码：

收录情况： SCI

摘要： Background: Cucumber mosaic virus (CMV) causes appreciable losses in vegetables, ornamentals and agricultural crops. The green peach aphid, Myzus persicae Sulzer (Aphididae) is one of the most efficient vectors for CMV. The transmission ecology of aphid-vectored CMV has been well investigated. However, the detailed description of the dynamic change in the plant-CMV-aphid interaction associated with plant defense and virus epidemics is not well known. Results: In this report, we investigated the relationship of virus titer with plant defense of salicylic acid (SA) and jasmonic acid (JA) during the different infection time and their interaction with aphids in CMV-infected tobacco plants. Our results showed that aphid performance changed with virus titer and plant defense on CMV-inoculated plants. At first, plant defense was low and aphid number increased gradually. The plant defense of SA signaling pathway was induced when virus titer was at a high level, and aphid performance was correspondingly reduced. Additionally, the winged aphids were increased. Conclusion: Our results showed that aphid performance was reduced due to the induced plant defense mediated by Cucumber mosaic virus titer. Additionally, some wingless aphids became to winged aphids. In this way CMV could be transmitted with the migration of winged aphids. We should take measures to prevent aphids in the early stage of their occurrence in the field to prevent virus outbreak.

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