| Title: | Mikania Micrantha Wilt Virus Alters Insect Vector's Host Preference to Enhance Its Own Spread |
| Author(s): | Wang RL; Zhu-Salzman K; Elzaki MEA; Huang QQ; Chen S; Ma ZH; Liu SW; Zhang JE; |
| Address: | "Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China. rlw2009@scau.edu.cn. Departments of Entomology, Texas A&M University, College Station, TX 77843, USA. ksalzman@tamu.edu. College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou 350000, China. alzaki_mohammed@yahoo.com. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China. cosplete@126.com. College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China. chenshi@scau.edu.cn. Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China. 13924082629@163.com. Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China. 13711379414@163.com. Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China. jeanzh@scau.edu.cn" |
| ISSN/ISBN: | 1999-4915 (Electronic) 1999-4915 (Linking) |
| Abstract: | "As an invasive weed, Mikaniamicrantha 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 Myzuspersicae (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" |
| Keywords: | Animals Aphids/drug effects/*physiology China Fabavirus/*growth & development Feeding Behavior/*drug effects *Host Microbial Interactions Host Specificity/*drug effects Insect Vectors/drug effects/physiology Mikania/*virology Pheromones/*metabolism Plant; |
| Notes: | "MedlineWang, Rui-Long Zhu-Salzman, Keyan Elzaki, Mohammed Esmail Abdalla Huang, Qiao-Qiao Chen, Shi Ma, Zhi-Hui Liu, Shi-Wei Zhang, Jia-En eng 31470576/National Natural Science Foundation of China/International 2017A030313188/Natural Science Foundation of Guangdong Province, China/International Research Support, Non-U.S. Gov't Switzerland 2019/04/12 Viruses. 2019 Apr 9; 11(4):336. doi: 10.3390/v11040336" |
