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Liu XL, Pei YW, Wu ZR, Zhang XQ, Lu M. Binding Properties of Odorant Binding Protein 37 in Plagiodera versicolora to Host Volatile, o-Cymene. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5682-5689. [PMID: 38446420 DOI: 10.1021/acs.jafc.3c09827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
The chemosensory system plays an important role in the host plants location. Plagiodera versicolora (Coleoptera: Chrysomelidae) is a worldwide leaf-eating forest pest that feeds exclusively on salicaceous trees. There is no function study of odorant binding proteins (OBPs) in P. versicolora. In the current study, we found that PverOBP37 has a high expression in male and female antennae, heads, and legs by quantitative real-time PCR. The binding properties of PverOBP37 to 18 host plant volatiles were determined by fluorescence competition binding assays. The results showed that PverOBP37 could bind to the host plant volatile, o-cymene. Furthermore, four candidate key amino acid residues (F8, Y50, F103, and R107) of PverOBP37 to o-cymene were identified by molecular docking. The functional assay to confirm Y50, F103, and R107 mutations were key amino acid residues of PverOBP37 involved in the binding to o-cymene. Knockdown of PverOBP37 and Y-tube behavioral bioassays of mated females led to a significantly reduced attraction to o-cymene. This study not only revealed the molecular mechanism of PverOBP37 but also suggested that PverOBP37 is essential to detect host plant volatiles as cues to search for egg-laying sites in P. versicolora.
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Affiliation(s)
- Xiao-Long Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Yi-Wen Pei
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Zhe-Ran Wu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Xiao-Qing Zhang
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education/Department of Entomology, Nanjing Agricultural University, Nanjing 210095, China
| | - Min Lu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
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Zou Y, Chen Y, Wang D, Xie X, Li G, Zheng C, Wen J, Su H, Liu X, Zeng L, Lu Y, Cao F. The Effects of Nine Compounds on Aldehyde-Oxidase-Related Genes in Bactrocera dorsalis (Hendel). Genes (Basel) 2023; 15:35. [PMID: 38254925 PMCID: PMC10815873 DOI: 10.3390/genes15010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/15/2023] [Accepted: 12/17/2023] [Indexed: 01/24/2024] Open
Abstract
Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) (B. dorsalis) is an important agricultural, major invasive, and quarantine pest that can cause significant damage to the economic value of the fruit and vegetable industry. Male bait is one of the most effective methods of surveying, monitoring, and controlling B. dorsalis. In our study, we constructed cDNA libraries using total RNA extracted independently from the antennae, mouthparts, and thoracic legs of male and female adults and the ovipositors of female adults and screened out four aldehyde-oxidase-related genes (AOX-related), C58800, C66700, C67485, and C67698. Molecular docking predictions showed that eight compounds, including 3,4-dimethoxycinnamyl alcohol, 3,4-dimethoxy-cinnamaldehyde, deet, ethyl N-acetyl-N-butyl-β-alaninate, n-butyl butyrate, n-butyl butyrate, ethyl butyrate, methyl eugenol, and ethyl acetate, could combine with proteins encoded by the four B. dorsalis AOX-related genes. Furthermore, QPCR was performed to confirm that four compounds, including 3,4-dimethoxy cinnamic aldehyde, butyl levulinic acid ethyl ester (mosquito repellent), butyl butyrate, and methyl eugenol, induced significant changes in the AOX-related genes of B. dorsalis. These results provide useful information and guidance for the batch screening of potentially useful compounds and the search for effective attractants of B. dorsalis.
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Affiliation(s)
- Yan Zou
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China; (Y.Z.); (X.X.); (J.W.); (X.L.)
| | - Yupeng Chen
- Department of Entomology, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (G.L.); (C.Z.); (H.S.); (L.Z.); (Y.L.)
| | - Duoduo Wang
- College of Life Sciences, Zhejiang Normal University, Jinhua 321004, China;
| | - Xiaowei Xie
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China; (Y.Z.); (X.X.); (J.W.); (X.L.)
| | - Gen Li
- Department of Entomology, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (G.L.); (C.Z.); (H.S.); (L.Z.); (Y.L.)
| | - Chunyan Zheng
- Department of Entomology, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (G.L.); (C.Z.); (H.S.); (L.Z.); (Y.L.)
| | - Jian Wen
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China; (Y.Z.); (X.X.); (J.W.); (X.L.)
| | - Hongai Su
- Department of Entomology, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (G.L.); (C.Z.); (H.S.); (L.Z.); (Y.L.)
| | - Xin Liu
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China; (Y.Z.); (X.X.); (J.W.); (X.L.)
| | - Ling Zeng
- Department of Entomology, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (G.L.); (C.Z.); (H.S.); (L.Z.); (Y.L.)
| | - Yongyue Lu
- Department of Entomology, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (G.L.); (C.Z.); (H.S.); (L.Z.); (Y.L.)
| | - Fengqin Cao
- School of Tropical Agriculture and Forestry, Hainan University, Haikou 570100, China; (Y.Z.); (X.X.); (J.W.); (X.L.)
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Li XM, Liu Q, Ma S, Yin MZ, Gu N, Qian LF, Zhang YN. Screening of behaviorally active compounds based on the interaction between two chemosensory proteins and mung bean volatiles in Callosobruchus chinensis. Int J Biol Macromol 2023; 250:126137. [PMID: 37544560 DOI: 10.1016/j.ijbiomac.2023.126137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/09/2023] [Accepted: 08/02/2023] [Indexed: 08/08/2023]
Abstract
Chemosensory proteins (CSPs) are involved in the earliest steps of the olfactory process by binding and transporting odorants and play a crucial role in the insect's search for food and egg-laying sites. In the present study, the tissue expression profiles showed that both CchiCSP3 and CchiCSP5 of Callosobruchus chinensis were highly expressed in the adult antennae. Subsequently, the recombinant CchiCSP3 and CchiCSP5 proteins were analysed using fluorescence competitive binding assays, and both showed binding affinities for the three mung bean volatiles. Molecular docking and site-directed mutagenesis revealed four key amino acid residues in CchiCSP3 (L47, W80, Y81, and L84) and CchiCSP5 (Y28, K46, L49, and I72). Electroantennogram (EAG) and dual-choice biobehavioral assays showed that the antennae of adult C. chinensis were electrophysiologically active in response to stimulation with all three behaviorally active compounds and that octyl 4-methoxycinnamate and β-ionone had a significant luring effect on adult C. chinensis, whereas vanillin had a significant avoidance effect. Our study screened three effective behaviorally active compounds based on the involvement of two CchiCSPs in the recognition of mung bean volatiles, providing an opportunity to develop an alternative control strategy using behavioral disruptors to limit the impact of pests.
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Affiliation(s)
- Xiao-Ming Li
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Qiang Liu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Sai Ma
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Mao-Zhu Yin
- Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou 234000, China
| | - Nan Gu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Li-Fu Qian
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Ya-Nan Zhang
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China.
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