| Title: | Airborne host-plant manipulation by whiteflies via an inducible blend of plant volatiles |
| Author(s): | Zhang PJ; Wei JN; Zhao C; Zhang YF; Li CY; Liu SS; Dicke M; Yu XP; Turlings TCJ; |
| Address: | "Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 310018 Hangzhou, China. State Key Laboratory of Integrated Management of Pest Insects & Rodents, Institute of Zoology, Chinese Academy of Sciences, 100080 Beijing, China. State Key Laboratory of Plant Genomics, Institute of Genetics & Developmental Biology, Chinese Academy of Sciences, 100101 Beijing, China. Institute of Insect Sciences, Zhejiang University, 310058 Hangzhou, China. Laboratory of Entomology, Wageningen University, 6700 AA Wageningen, The Netherlands. Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, 310018 Hangzhou, China; yxp@cjlu.edu.cn. Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of Biology, University of Neuchatel, CH-2000 Neuchatel, Switzerland" |
| ISSN/ISBN: | 1091-6490 (Electronic) 0027-8424 (Print) 0027-8424 (Linking) |
| Abstract: | "The whitefly Bemisia tabaci is one of the world's most important invasive crop pests, possibly because it manipulates plant defense signaling. Upon infestation by whiteflies, plants mobilize salicylic acid (SA)-dependent defenses, which mainly target pathogens. In contrast, jasmonic acid (JA)-dependent defenses are gradually suppressed in whitefly-infested plants. The down-regulation of JA defenses make plants more susceptible to insects, including whiteflies. Here, we report that this host-plant manipulation extends to neighboring plants via airborne signals. Plants respond to insect attack with the release of a blend of inducible volatiles. Perception of these volatiles by neighboring plants usually primes them to prepare for an imminent attack. Here, however, we show that whitefly-induced tomato plant volatiles prime SA-dependent defenses and suppress JA-dependent defenses, thus rendering neighboring tomato plants more susceptible to whiteflies. Experiments with volatiles from caterpillar-damaged and pathogen-infected plants, as well as with synthetic volatiles, confirm that whiteflies modify the quality of neighboring plants for their offspring via whitefly-inducible plant volatiles" |
| Keywords: | Animals Hemiptera/*physiology Host-Parasite Interactions/*physiology *Solanum lycopersicum/metabolism/parasitology Salicylic Acid/*metabolism Volatile Organic Compounds/*metabolism herbivore-induced plant volatiles jasmonic acid salicylic acid tomato whit; |
| Notes: | "MedlineZhang, Peng-Jun Wei, Jia-Ning Zhao, Chan Zhang, Ya-Fen Li, Chuan-You Liu, Shu-Sheng Dicke, Marcel Yu, Xiao-Ping Turlings, Ted C J eng Research Support, Non-U.S. Gov't 2019/03/27 Proc Natl Acad Sci U S A. 2019 Apr 9; 116(15):7387-7396. doi: 10.1073/pnas.1818599116. Epub 2019 Mar 25" |
