| Title: | Plant Volatiles Modulate Seasonal Dynamics between Hosts of the Polyphagous Mirid Bug Apolygus lucorum |
| Author(s): | Pan HS; Xiu CL; Williams L; Lu YH; |
| Address: | "Scientific Observing and Experimental Station of Crop Pests in Korla, Ministry of Agriculture and Rural Affairs, Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. USDA-ARS U.S. Vegetable Laboratory, Charleston, SC, 29414, USA. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. luyanhui@caas.cn" |
| DOI: | 10.1007/s10886-020-01236-9 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Plant-derived volatiles play a significant role in host selection of phytophagous insects, but their role in seasonal host shifts remain unclear. The polyphagous mirid bug Apolygus lucorum displays marked seasonal host alternation. During summer, volatiles from flowering plants play a key role in A. lucorum foraging. Though A. lucorum adults deposit overwintering eggs on jujube (Ziziphus jujuba) and grape (Vitis vinifera) during autumn, it is unclear whether plant volatiles equally mediate this host selection behavior. During 2015 and 2016, we found that population densities of A. lucorum adults on cotton (Gossypium hirsutum) during August were higher than those in September, whereas the opposite pattern was observed on fruit trees (i.e., jujube and grape). The dispersal factor of the adult population that dispersed from cotton fields during September was higher than in August, whereas opposite patterns were observed in the neighboring jujube/grape orchard. In Y-tube olfactometer trials, A. lucorum adults preferred cotton plant volatiles over fruit tree odors in August, whereas the opposite patterns were found in September. Three electro-physiologically active volatiles (butyl acrylate, butyl propionate and butyl butyrate) were identified from jujube and grape plants. During September, active volatiles are emitted in considerably greater amounts by jujube and grape than in August, while the amount of volatile emissions in cotton decreases in September. Temporal shifts in plant volatile emission thus may modulate host plant foraging of A. lucorum, and appear to guide its colonization of different host plants. Our findings help understand the role of plant volatiles in the host plant selection and seasonal dynamics of polyphagous herbivores" |
| Keywords: | Animals Female Gossypium *Herbivory Heteroptera/*physiology Magnoliopsida/chemistry/*metabolism Male Odorants Principal Component Analysis Seasons Vitis Volatile Organic Compounds/analysis/*metabolism Ziziphus Behavioral response Electroantennogram respon; |
| Notes: | "MedlinePan, Hong-Sheng Xiu, Chun-Li Williams, Livy 3rd Lu, Yan-Hui eng 31501645/National Natural Science Funds of China/ 2017YFD0201900/National Key Research and Development Program of China/ RSSQ00064481/High-level Talent Introduction Project/ 2017XS19/Tianshan Cedar Project/ 2021/01/07 J Chem Ecol. 2021 Jan; 47(1):87-98. doi: 10.1007/s10886-020-01236-9. Epub 2021 Jan 6" |
