title: Genome-wide transcriptional changes and defence-related chemical profiling of rice in response to infestation by the rice striped stem borer Chilo suppressalis.
abstract: How rice defends itself against pathogen infection is well documented, but little is known about how it defends itself against herbivore attack. We measured changes in the transcriptome and chemical profile of rice when the plant is infested by the striped stem borer (SSB) Chilo suppressalis. Infestation by SSBs resulted in changes in the expression levels of 4545 rice genes; this number accounts for about 8% of the genome and is made up of 18 functional groups with broad functions. The largest group comprised genes involved in metabolism, followed by cellular transport, transcription and cellular signaling. Infestation by SSBs modulated many genes responsible for the biosynthesis of plant hormones and plant signaling. Jasmonic acid (JA), salicylic acid (SA) and ethylene were the major hormones that shaped the SSB-induced defence responses of rice. Many secondary signal transduction components, such as those involved in Ca²⁺ signaling and G-protein signaling, receptor and non-receptor protein kinases, and transcription factors were involved in the SSB-induced responses of rice. Photosynthesis and ATP synthesis from photophosphorylation were restricted by SSB feeding. In addition, SSB infestation induced the accumulation of defence compounds, including trypsin proteinase inhibitors (TrypPIs) and volatile organic compounds. These results demonstrate that SSB-induced defences required rice to reconfigure a wide variety of its metabolic, physiological and biochemical processes.
authors.affiliation: National Key Laboratory of Rice Biology, Institute of Insect Science, Zhejiang University, Hangzhou 310029, China.
authors.forename: Guoxin
authors.initials: G
authors.lastname: Zhou
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Feng
authors.initials: F
authors.lastname: Yan
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Ran
authors.initials: R
authors.lastname: Li
authors.forename: Jiaan
authors.initials: J
authors.lastname: Cheng
authors.forename: Yonggen
authors.initials: Y
authors.lastname: Lou
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000378:metabolism; D003517:Cyclopentanes / Q000378:metabolism; D005030:Ethylenes / Q000096:biosynthesis; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D006790:Host-Parasite Interactions / Q000235:genetics; D007915:Lepidoptera / Q000502:physiology*; D012275:Oryza / Q000235:genetics* / Q000378:metabolism / Q000469:parasitology*; D054883:Oxylipins / Q000378:metabolism; D010937:Plant Growth Regulators / Q000235:genetics; D010940:Plant Proteins / Q000096:biosynthesis; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism; D020156:Salicylic Acid / Q000378:metabolism; D015398:Signal Transduction; D014158:Transcription, Genetic
chemical_list: D000975:Antioxidants; D003517:Cyclopentanes; D005030:Ethylenes; D054883:Oxylipins; D010937:Plant Growth Regulators; D010940:Plant Proteins; D012333:RNA, Messenger; D017382:Reactive Oxygen Species; C053376:pathogenesis-related proteins, plant; C011006:jasmonic acid; C036216:ethylene; D020156:Salicylic Acid