| Title: | Elevated O(3) enhances the attraction of whitefly-infested tomato plants to Encarsia formosa |
| Author(s): | Cui H; Su J; Wei J; Hu Y; Ge F; |
| Address: | "1] State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR of China [2] College of Life Science, Yangtze University, Hubei 434023, PR of China. State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR of China. Henan Academy of Agricultural Sciences, Henan 450002, PR of China" |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "We experimentally examined the effects of elevated O(3) and whitefly herbivory on tomato volatiles, feeding and oviposition preferences of whiteflies and behavioural responses of Encarsia formosa to these emissions on two tomato genotypes, a wild-type (Wt) and a jasmonic acid (JA) defence-enhanced genotype (JA-OE, 35S). The O(3) level and whitefly herbivory significantly increased the total amount of volatile organic compounds (VOCs), monoterpenes, green leaf volatiles (GLVs), and aldehyde volatiles produced by tomato plants. The 35S plants released higher amount of total VOCs and monoterpene volatiles than Wt plants under O(3)+herbivory treatments. The feeding and oviposition bioassays showed that control plants were preferred by adult whiteflies whereas the 35S plants were not preferred by whiteflies. In the Y-tube tests, O(3)+herbivory treatment genotypes were preferred by adult E. Formosa. The 35S plants were preferred by adult E. formosa under O(3), herbivory and O(3)+herbivory treatments. Our results demonstrated that elevated O(3) and whitefly herbivory significantly increased tomato volatiles, which attracted E. formosa and reduced whitefly feeding. The 35S plants had a higher resistance to B. tabaci than Wt plant. Such changes suggest that the direct and indirect defences of resistant genotypes, such as 35S, could strengthen as the atmospheric O(3) concentration increases" |
| Keywords: | "Aldehydes/metabolism Animals Biosynthetic Pathways/genetics Cyclopentanes/metabolism Disease Resistance/drug effects/genetics Dose-Response Relationship, Drug Feeding Behavior/drug effects/physiology Female Genotype Hemiptera/*parasitology/*physiology Hos;" |
| Notes: | "MedlineCui, Hongying Su, Jianwei Wei, Jianing Hu, Yongjian Ge, Feng eng Research Support, Non-U.S. Gov't England 2014/06/19 Sci Rep. 2014 Jun 18; 4:5350. doi: 10.1038/srep05350" |
