| Title: | O(3)-Induced Priming Defense Associated With the Abscisic Acid Signaling Pathway Enhances Plant Resistance to Bemisia tabaci |
| Author(s): | Guo H; Sun Y; Yan H; Li C; Ge F; |
| Address: | "State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China. CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China. College of Bioscience and Resource Environment/Key Laboratory of Urban Agriculture (North China), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing University of Agriculture, Beijing, China. State Key Laboratory of Plant Genomics, National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China" |
| ISSN/ISBN: | 1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking) |
| Abstract: | "Elevated ozone (O(3)) modulates phytohormone signals, which subsequently alters the interaction between plants and herbivorous insects. It has been reported that elevated O(3) activates the plant abscisic acid (ABA) signaling pathway, but its cascading effect on the performance of herbivorous insects remains unclear. Here, we used the ABA-deficient tomato mutant notabilis (not) and its wild type, Ailsa Craig (AC), to determine the role of ABA signaling in mediating the effects of elevated O(3) on Bemisia tabaci in field open-top chambers (OTCs). Our results showed that the population abundance and the total phloem-feeding duration of B. tabaci were decreased by O(3) exposure in AC plants compared with not plants. Moreover, elevated O(3) and B. tabaci infestation activated the ABA signaling pathway and enhanced callose deposition in AC plants but had little effect on those in not plants. The exogenous application of a callose synthesis inhibitor (2-DDG) neutralized O(3)-induced resistance to B. tabaci, and the application of ABA enhanced callose deposition and exacerbated the negative effects of elevated O(3) on B. tabaci. However, the application of 2-DDG counteracted the negative effects of O(3) exposure on B. tabaci in ABA-treated AC plants. Collectively, this study revealed that callose deposition, which relied on the ABA signaling pathway, was an effective O(3)-induced priming defense of tomato plants against B. tabaci infestation" |
| Keywords: | Bemisia tabaci abscisic acid callose elevated O3 priming defense; |
| Notes: | "PubMed-not-MEDLINEGuo, Honggang Sun, Yucheng Yan, Hongyu Li, Chuanyou Ge, Feng eng Switzerland 2020/03/27 Front Plant Sci. 2020 Feb 26; 11:93. doi: 10.3389/fpls.2020.00093. eCollection 2020" |
