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Magsi FH, Cai X, Luo Z, Li Z, Bian L, Xiu C, Fu N, Li J, Hall DR, Chen Z. Identification, synthesis, and field evaluation of components of the female-produced sex pheromone of Helopeltis cinchonae (Hemiptera: Miridae), an emerging pest of tea. PEST MANAGEMENT SCIENCE 2024. [PMID: 38624134 DOI: 10.1002/ps.8129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 04/01/2024] [Accepted: 04/16/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Helopeltis cinchonae (Hemiptera: Miridae) is a major pest of tea plantations in Asia. Conventional control of pests with pesticides is unsustainable. Therefore, safe and eco-friendly alternatives, such as pheromones, are required to manage the pest. RESULTS In gas chromatography-electroantennographic detection (GC-EAD) analysis of whole-body extracts of virgin female H. cinchonae, two compounds elicited electroantennogram (EAG) responses from male antennae. These were identified as hexyl (R)-3-acetoxybutyrate and (R)-1-acetoxy-5-butyroxyhexane using gas chromatography-mass spectrometry (GC-MS) analysis compared to synthetic compounds. This is the first study to report 1-acetoxy-5-butyroxyhexane as an insect pheromone component. The synthetic compounds elicited dose-dependent EAG responses from the antennae of male H. cinchonae. In two field trapping experiments, the individual compounds were highly attractive to male H. cinchonae when dispensed from polyethylene vials. However, higher catches were obtained with blends of the two compounds in a 1:10 ratio. The blend of racemic compounds was as attractive as the blend of (R)-enantiomers. CONCLUSIONS We reported that 1-acetoxy-5-butyroxyhexane and hexyl 3-acetoxybutyrate are components of the female-produced sex pheromone of H. cinchonae, but further work is required on the blend and loading of pheromone and on trap design to provide an optimized system for monitoring and control of this pest. The results may also facilitate the identification of the pheromones of other Helopeltis species, which are major pests in many crops. © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Fida Hussain Magsi
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Xiaoming Cai
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Zongxiu Luo
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Zhaoqun Li
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Lei Bian
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Chunli Xiu
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Nanxia Fu
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Jianlong Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - David R Hall
- Natural Resources Institute, University of Greenwich, Kent, UK
| | - Zongmao Chen
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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Qian C, Su Z, Xie W, Dong X, Li Y, Yuan P, Wang S, Wen X, Wang C, Ma T. Structure, Synthesis, and Bioassays of Sex Pheromone for Pyrausta machaeralis (Lepidoptera: Crambidae). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3904-3912. [PMID: 38303158 DOI: 10.1021/acs.jafc.3c07182] [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: 02/03/2024]
Abstract
The leaf skeletonizer, Pyrausta machaeralis (Lepidoptera: Crambidae), is a serious insect pest of teak (Tectona grandis) in China. The application of insect pheromones is widely applied as an environmentally friendly technology for integrated pest management (IPM). In the present study, crude extracts of sex pheromone glands of calling P. machaeralis females were collected and then analyzed using gas chromatography/electroantennographic detection (GC/EAD) and gas chromatography-mass spectrometry (GC-MS). The combination of infrared spectroscopy (IR) and nuclear magnetic resonance (NMR) spectrometry was used for structure identification. Afterward, their electrophysiological and behavioral activity was evaluated in the laboratory and field. Herein, we eventually determined two active components, E-11-tetradecenyl acetate (E11-14:Ac) and Z-11-tetradecenyl acetate (Z11-14:Ac), at a ratio of 96:4, as the sex pheromone of P. machaeralis. The identification of sex pheromones would facilitate the development of efficient strategies for monitoring and controlling the field populations of P. machaeralis.
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Affiliation(s)
- Chenyu Qian
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Zhongqi Su
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Wenqi Xie
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Xiang Dong
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Yonghu Li
- Pherobio Technology Co. Ltd., Yangling 712100, China
| | - Pengyu Yuan
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Shengkun Wang
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
| | - Xiujun Wen
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Cai Wang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Tao Ma
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
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Souza JPA, Bandeira PT, Bergmann J, Zarbin PHG. Recent advances in the synthesis of insect pheromones: an overview from 2013 to 2022. Nat Prod Rep 2023; 40:866-889. [PMID: 36820746 DOI: 10.1039/d2np00068g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Covering: 2013 to June 2022Pheromones are usually produced by insects in sub-microgram amounts, which prevents the elucidation of their structures by nuclear magnetic resonance (NMR). Instead, a synthetic reference material is needed to confirm the structure of the natural compounds. In addition, the provision of synthetic pheromones enables large-scale field trials for the development of environmentally friendly pest management tools. Because of these potential applications in pest control, insect pheromones are attractive targets for the development of synthetic procedures and the synthesis of these intraspecific chemical messengers has been at the core of numerous research efforts in the field of pheromone chemistry. The present review is a quick reference guide for the syntheses of insect pheromones published from 2013 to mid-2022, listing the synthesized compounds and highlighting current methodologies in organic synthesis, such as carbon-carbon coupling reactions, organo-transition metal chemistry including ring-closing olefin metathesis, asymmetric epoxidations and dihydroxylations, and enzymatic reactions.
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Affiliation(s)
- João P A Souza
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
| | - Pamela T Bandeira
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil. .,Departamento de Química, Universidade Federal de Santa Maria, Avda. Roraima, 1000, Santa Maria, RS, Brazil
| | - Jan Bergmann
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330, Valparaíso, Chile.
| | - Paulo H G Zarbin
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
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Magsi FH, Luo Z, Zhao Y, Li Z, Cai X, Bian L, Chen Z. Electrophysiological and Behavioral Responses of Dasychira baibarana (Lepidoptera: Lymantriidae) to Tea Plant Volatiles. ENVIRONMENTAL ENTOMOLOGY 2021; 50:589-598. [PMID: 33677497 DOI: 10.1093/ee/nvab016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Indexed: 06/12/2023]
Abstract
Tea black tussock moth, Dasychira baibarana (Matsumura) (Lepidoptera: Lymantriidae), is a devastating pest species of the tea plant in China. Here, we evaluated the responses of D. baibarana to tea plant volatiles using gas chromatography coupled electroantennographic detection (GC-EAD), eleclectroantennography (EAG), and a Y-tube olfactometer. In total, 11 of 18 analyzed compounds elicited GC-EAD responses from test insects. GC-EAD bio-active compounds were further investigated using EAG and behavioral responses. In the EAG analysis, male moths had significantly greater responses to four compounds [(Z)-3-hexenyl butyrate, (Z)-3-hexen-1-ol, ocimene and benzyl alcohol] than female moths. For females, maximum EAG amplitudes, were recorded in response to linalool, (Z)-3-hexenyl hexanoate and (Z)-jasmone. In EAG and behavioral bio-assays, the responses of both sexes were dose independent. In behavioral bio-assays male moths responding significantly to (Z)-3-hexen-1-ol, ocimene, (Z)-3-hexenyl butyrate, linalool, benzyl alcohol, and (Z)-jasmone at various concentrations. For females, significant behavioral responses were observed to (Z)-3-hexenyl hexanoate, followed by (Z)-jasmone, linalool, ocimene, and benzyl alcohol. However, neither sex was sensitive to 4 of the 11 tested compounds, phenyethyl alcohol, phenylacetonitrile, (E)-nerolidol, and indole. The present results showed that tea plant volatiles influenced the behavior of D. baibarana moths, which will greatly contribute in developing eco-friendly control strategies for D. baibarana, through the application of a blend of compounds that showed significant EAG and behavioral responses or a blend combined with female-produced sex pheromones.
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Affiliation(s)
- Fida Hussain Magsi
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
| | - Zongxiu Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
| | - Yingjie Zhao
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
| | - Zhaoqun Li
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
| | - Xiaoming Cai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
| | - Lei Bian
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
| | - Zongmao Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Xihu District, Hangzhou, China
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Xihu District, Hangzhou, China
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Ando T, Yamamoto M. Semiochemicals containing lepidopteran sex pheromones: Wonderland for a natural product chemist. JOURNAL OF PESTICIDE SCIENCE 2020; 45:191-205. [PMID: 33304188 PMCID: PMC7691580 DOI: 10.1584/jpestics.d20-046] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 08/30/2020] [Indexed: 06/12/2023]
Abstract
Since the first identification of bombykol, sex pheromones of about 700 moth species have been elucidated. Additionally, field evaluations of synthetic pheromones and their related compounds have revealed the male attraction of another 1,300 species. These pheromones and attractants are listed on the web-sites, "Pheromone Database, Part I." Pheromone components are classified according to their chemical structures into two major groups (Types I and II) and miscellaneous. Based on our previous review published in 2004, studies reported during the last two decades are highlighted here to provide information on the structure characteristics of newly identified pheromones, current techniques for structure determination, new enantioselective syntheses of methyl-branched pheromones, and the progress of biosynthetic research. Besides the moth sex pheromones, various pheromones and allomones from many arthropod species have been uncovered. These semiochemicals are being collected in the "Pheromone Database, Part II." The chemical diversity provides a wonderland for natural product chemists.
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Affiliation(s)
- Tetsu Ando
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
| | - Masanobu Yamamoto
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology
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