| Title: | Role of jasmonate signaling in rice resistance to the leaf folder Cnaphalocrocis medinalis |
| Author(s): | Zhuang Y; Wang X; Llorca LC; Lu J; Lou Y; Li R; |
| Address: | "State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China. Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany. State Key Laboratory of Rice Biology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China. rli05@zju.edu.cn" |
| DOI: | 10.1007/s11103-021-01208-x |
| ISSN/ISBN: | 1573-5028 (Electronic) 0167-4412 (Linking) |
| Abstract: | "Jasmonate-induced accumulation of anti-herbivore compounds mediates rice resistance to the leaf folder Cnaphalocrocis medinalis. The rice leaf folder (LF), Cnaphalocrocis medinalis, is one of the most destructive insect pests in the paddy field. LF larvae induces leaf folding and scrapes the upper epidermis and mesophyll tissues reducing photosynthesis and yield in rice. Identifying plant defense pathways and genes involved in LF resistance is essential to understand better this plant-insect interaction and develop new control strategies for this pest. Jasmonate (JA) signaling controls a plethora of plant defenses against herbivores. Using RNA-seq time series analysis, we characterized changes in the transcriptome of wild-type (WT) leaves in response to LF damage and measured the dynamics of accumulation of JA phytohormone pools in time-course experiments. Genes related to JA signaling and responses, known to mediate resistance responses to herbivores, were induced by LF and were accompanied by an increment in the levels of JA pools in damaged leaves. The accumulation of defense compounds such as phenolamides and trypsin proteinase inhibitor (TPI) also increased after LF infestation in WT but not in JA mutant plants impaired in JA biosynthesis (aoc-2) and signaling (myc2-5). Consistent with all these responses, we found that LF larvae performed better in the JA mutant backgrounds than in the WT plants. Our results show that JA signaling regulates LF-induced accumulation of TPI and phenolamides and that these compounds are likely an essential part of the defense arsenal of rice plants against this insect pest" |
| Keywords: | Animals Cyclopentanes/metabolism Larva/metabolism *Moths/physiology *Oryza/metabolism Oxylipins/metabolism Defense response Jasmonate (JA) Phenolamide Rice leaf folder Trypsin proteinase inhibitor (TPI); |
| Notes: | "MedlineZhuang, Yunqi Wang, Xinjue Llorca, Lucas Cortes Lu, Jing Lou, Yonggen Li, Ran eng Netherlands 2021/10/29 Plant Mol Biol. 2022 Jul; 109(4-5):627-637. doi: 10.1007/s11103-021-01208-x. Epub 2021 Oct 28" |
