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Cao W, Zhang F, Li H, Zhang Y, Zhang Y, Zhang W, Guo X, Dong L, Li H, Zeng D, Li X, Yang X. A short neuropeptide F analog (sNPF), III-2 may particularly regulate juvenile hormone III to influence Spodoptera frugiperda metamorphosis and development. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 197:105653. [PMID: 38072528 DOI: 10.1016/j.pestbp.2023.105653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 12/18/2023]
Abstract
Allatostatin (AS) or Allatotropin (AT) is a class of insect short neuropeptide F (sNPF) that affects insect growth and development by inhibiting or promote the synthesis of juvenile hormone (JH) in different insects. III-2 is a novel sNPF analog derived from a group of nitroaromatic groups connected by different amino acids. In this study, we found that III-2 showed high insecticidal activity against S. frugiperda larvae with a LC50 of 18.7 mg L-1. As demonstrated by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), III-2 particularly facilitated JH III and hindered 20E synthesis in S. frugiperda. The results of RNA-Seq and quantitative real-time polymerase chain reaction (qPCR) showed that III-2 treatment promoted the expression of key genes such as SfCYP15C1 in JH synthesis pathway and inhibited the expression of SfCYP314A1 and other genes in the 20E synthetic pathway. Significant differences were also observed in the expression of the genes related to cuticle formation. We report for the first time that sNPF compounds specifically interfere with the synthesis and secretion of a certain JH in insects, thus affecting the ecdysis and growth of insects, and leading to death. This study may provide a new plant conservation concept for us to seek the targeted control of certain insects based on specific interference with different JH.
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Affiliation(s)
- Wenjing Cao
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Fu Zhang
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Haolin Li
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Yimeng Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yongheng Zhang
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Wenjie Zhang
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Xiaxia Guo
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Linxi Dong
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Honghong Li
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Dongqiang Zeng
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China
| | - Xuesheng Li
- Guangxi Key Laboratory of Agric-Environment and Agric-products Safety, Guangxi University, Nanning, Guangxi 530004, China.
| | - Xinling Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
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