| Title: | A Faboideae-Specific Floral Scent Betrays Seeds to an Important Granivore Pest |
| Author(s): | Xu H; Chen S; Wang Y; Pan J; Liu X; Wang C; Wang X; Cui X; Chen X; Li J; Rasmann S; |
| Address: | "College of Plant Protection, Nanjing Agricultural University, No. 1 Weigang, Nanjing, Jiangsu 210095, China. Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou, Anhui 234000, China. Centre of Plant Protection, Fuyang Academy of Agricultural Sciences, Fuyang, Anhui 236000, China. Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences/Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, Jiangsu 210095, China. Suzhou Vocational and Technical College, Suzhou, Anhui 234000, China. Institute of Biology, University of Neuchatel, Rue-Emile-Argand 11, Neuchatel 2000, Switzerland" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "Seed predation by insect herbivores reduces crop production worldwide. Foraging on seeds at pre-dispersal generally means that females need to find the suitable host plant within a relatively short timeframe in order to synchronize larval development with seed production. The mechanistic understanding of host finding by seed pests can be harnessed for more sustainable pest management strategies. We here studied the chemical communication between the bean bug Riptortus pedestris, a major pest of legumes, and several crop species and cultivars in the Fabaceae. Via a comparative chemical analysis, we found that 1-octen-3-ol is the principal constituent of the floral scents of most species tested in the subfamily Faboideae, including soybean and faba bean. With field trapping and laboratory bioassays, including electroantennography, we further revealed that this compound can be perceived, and stimulate attraction responses, by R. pedestris nymphs and adults. The addition of 1-octen-3-ol to pheromone traps might therefore improve trapping efficacy for controlling populations of this important granivore pest on legumes" |
| Keywords: | *Odorants *Fabaceae Vegetables Seeds Pheromones Heteroptera chemical ecology kairomone population dynamics soybean pest stink bugs; |
| Notes: | "MedlineXu, Hao Chen, Shuwei Wang, Yueying Pan, Jinzhi Liu, Xingzhou Wang, Chaowei Wang, Xinxia Cui, Xiaoyan Chen, Xin Li, Jinbu Rasmann, Sergio eng 2023/08/17 J Agric Food Chem. 2023 Aug 30; 71(34):12668-12677. doi: 10.1021/acs.jafc.3c03196. Epub 2023 Aug 17" |
