文献类型： 外文期刊

作者： Wang, Rui-Long ¹ ; Zhu-Salzman, Keyan ² ; Elzaki, Mohammed Esmail Abdalla ³ ; Huang, Qiao-Qiao ⁴ ; Chen, Shi ⁵ ; Ma ¹ ;

作者机构： 1.South China Agr Univ, Coll Nat Resources & Environm, Minist Agr, Key Lab Agroenvironm Trop, Guangzhou 510642, Guangdong, Peoples R China

2.Texas A&M Univ, Dept Entomol, College Stn, TX 77843 USA

3.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou 350000, Fujian, Peoples R China

4.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Hainan, Peoples R China

5.South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China

关键词： Mikania micrantha wilt virus; Myzus persicae; virus-induced plant volatile; virus-host plant-insect vector interactions; odor cues; Gentian mosaic virus; Fabavirus

期刊名称：VIRUSES-BASEL （ 影响因子：5.048； 五年影响因子：5.127 ）

ISSN： 1999-4915

年卷期： 2019 年 11 卷 4 期

页码：

收录情况： SCI

摘要： As an invasive weed, Mikania micrantha Kunth has caused serious damage to natural forest ecosystems in South China in recent years. Mikania micrantha wilt virus (MMWV), an isolate of the Gentian mosaic virus (GeMV), is transmitted by Myzus persicae (Sulzer) in a non-persistent manner and can effectively inhibit the growth of M. micrantha. To explore the MMWV-M. micrantha-M. persicae interaction and its impact on the invasion of M. micrantha, volatile compounds (VOCs) emitted from healthy, mock-inoculated, and MMWV-infected plants were collected, and effects on host preference of the apterous and alate aphids were assessed with Y-shaped olfactometers. Gas chromatography-mass spectrometry (GC-MS) analysis indicated that MMWV infection changed the VOC profiles, rendering plants more attractive to aphids. Clip-cages were used to document the population growth rate of M. persicae fed on healthy, mock-inoculated, or MMWV-infected plants. Compared to those reared on healthy plants, the population growth of M. persicae drastically decreased on the MMWV-infected plants. Plant host choice tests based on visual and contact cues were also conducted using alate M. persicae. Interestingly, the initial attractiveness of MMWV-infected plants diminished, and more alate M. persicae moved to healthy plants. Taken together, MMWV appeared to be able to manipulate its plant host to first attract insect vectors to infected plants but then repel viruliferous vectors to promote its own dispersal. Its potential application for invasive weed management is discussed.