| Title: | Herbivore-induced rice resistance against rice blast mediated by salicylic acid |
| Author(s): | Zhang KL; Liu QS; Kang HX; Liu XM; Chen XP; Peng YF; Li YH; |
| Address: | "College of Environment and Plant Protection, Hainan University, Haikou, China. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China. College of Life Sciences, Xinyang Normal University, Xinyang, Henan, China" |
| ISSN/ISBN: | 1744-7917 (Electronic) 1672-9609 (Linking) |
| Abstract: | "In agro-ecosystems, plants are important mediators of interactions between their associated herbivorous insects and microbes, and any change in plants induced by one species may lead to cascading effects on interactions with other species. Often, such effects are regulated by phytohormones such as jasmonic acid (JA) and salicylic acid (SA). Here, we investigated the tripartite interactions among rice plants, three insect herbivores (Chilo suppressalis, Cnaphalocrocis medinalis or Nilaparvata lugens), and the causal agent of rice blast disease, the fungus Magnaporthe oryzae. We found that pre-infestation of rice by C. suppressalis or N. lugens but not by C. medinalis conferred resistance to M. oryzae. For C. suppressalis and N. lugens, insect infestation without fungal inoculation induced the accumulation of both JA and SA in rice leaves. In contrast, infestation by C. medinalis increased JA levels but reduced SA levels. The exogenous application of SA but not of JA conferred resistance against M. oryzae. These results suggest that pre-infestation by C. suppressalis or N. lugens conferred resistance against M. oryzae by increasing SA accumulation. These findings enhance our understanding of the interactions among rice plant, insects and pathogens, and provide valuable information for developing an ecologically sound strategy for controlling rice blast" |
| Keywords: | Animals Disease Resistance/physiology Hemiptera/*physiology *Herbivory Magnaporthe/*physiology Moths/*physiology Oryza/*microbiology Plant Diseases/*microbiology Salicylic Acid/*metabolism induced defense jasmonic acid plant-insect-pathogen interaction ri; |
| Notes: | "MedlineZhang, Kai-Li Liu, Qing-Song Kang, Hou-Xiang Liu, Xiao-Mei Chen, Xiu-Ping Peng, Yu-Fa Li, Yun-He eng 2016ZX08011-001/National GMO New Variety Breeding Program of the People's Republic of China/ Xinyang Normal University/ Australia 2018/07/13 Insect Sci. 2020 Feb; 27(1):49-57. doi: 10.1111/1744-7917.12630. Epub 2018 Aug 23" |
