Oral secretions from striped stem borer (Chilo suppressalis) induce defenses in rice.

Autor: Yu S; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China., Gong L; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China., Han YC; Laboratory for Quarantine of Alien Species, Integrated Technical Service Center of Jiangyin Customs, Jiangyin, China., Yang L; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China., Li J; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China., Hoffmann AA; School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Australia., Luo GH; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China., Yuan GR; Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China., Fang JC; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China., Ji R; Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety (State Key Laboratory Cultivation Base of Ministry of Science and Technology), Nanjing, China.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2024 Aug 17. Date of Electronic Publication: 2024 Aug 17.
DOI: 10.1002/ps.8376
Abstrakt: Background: The striped stem borer (SSB, Chilo suppressalis) is one of the most destructive insect pests on rice. As a chewing insect, SSB larval feeding causes a dramatic increase in rice defense responses. However, the effects of oral secretions (OSs) during SSB feeding on rice defense remain largely unexplored.
Results: In this study, based on transcriptome analysis results, treatment with SSB OSs regulated the expression of genes involved in the plant defense-related pathways of calcium, mitogen-activated protein kinases, reactive oxygen species, jasmonic acid (JA), herbivore-induced plant volatiles (HIPVs), and protease inhibitors. Unsurprisingly, treatment with SSB OSs elicited the accumulation of JA and JA-isoleucine in rice. The defense mechanisms activated by the cascade not only induced the expression of trypsin inhibitors, inhibiting the normal growth of SSB larvae but also induced HIPVs emission, rendering rice attractive to a common larval parasitoid. High-throughput proteome sequencing of SSB OSs led to 534 proteins being identified and 343 proteins with two or more unique peptides being detected.
Conclusion: The study demonstrates that SSB OSs trigger both direct and indirect defense mechanisms in rice, akin to the effects of SSB feeding. It identifies specific proteins in SSB OSs that may influence the interactions between SSB and rice during feeding, providing valuable insights for effectors research. © 2024 Society of Chemical Industry.
(© 2024 Society of Chemical Industry.)
Databáze: MEDLINE
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