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Characterization of Neuropeptides from Spodoptera litura and Functional Analysis of NPF in Diet Intake.
- Source :
-
Journal of agricultural and food chemistry [J Agric Food Chem] 2024 May 08; Vol. 72 (18), pp. 10304-10313. Date of Electronic Publication: 2024 Apr 24. - Publication Year :
- 2024
-
Abstract
- Neuropeptides are involved in many biological processes in insects. However, it is unclear what role neuropeptides play in Spodoptera litura adaptation to phytochemical flavone. In this study, 63 neuropeptide precursors from 48 gene families were identified in S. litura , including two neuropeptide F genes ( NPFs ). NPFs played a positive role in feeding regulation in S. litura because knockdown of NPFs decreased larval diet intake. S. litura larvae reduced flavone intake by downregulating NPFs . Conversely, the flavone intake was increased if the larvae were treated with NPF mature peptides. The NPF receptor (NPFR) was susceptible to the fluctuation of NPFs. NPFR mediated NPF signaling by interacting with NPFs to regulate the larval diet intake. In conclusion, this study suggested that NPF signaling regulated diet intake to promote S. litura adaptation to flavone, which contributed to understanding insect adaptation mechanisms to host plants and provide more potential pesticidal targets for pest control.
- Subjects :
- Animals
Flavones metabolism
Flavones chemistry
Feeding Behavior
Amino Acid Sequence
Spodoptera physiology
Spodoptera metabolism
Neuropeptides metabolism
Neuropeptides genetics
Neuropeptides chemistry
Larva growth & development
Larva metabolism
Larva chemistry
Insect Proteins metabolism
Insect Proteins genetics
Insect Proteins chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1520-5118
- Volume :
- 72
- Issue :
- 18
- Database :
- MEDLINE
- Journal :
- Journal of agricultural and food chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 38657164
- Full Text :
- https://doi.org/10.1021/acs.jafc.4c01465