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Zhu X, Liu X, Yu Q, Liu Y, Wang L, Du W, Ng WL, Ren B, Chen Q. Coordinated mediation of the response to ethyl linoleate by two odorant-binding proteins in Plodia interpunctella larvae. Int J Biol Macromol 2025; 309:142759. [PMID: 40180082 DOI: 10.1016/j.ijbiomac.2025.142759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2025] [Revised: 03/09/2025] [Accepted: 03/31/2025] [Indexed: 04/05/2025]
Abstract
The Indian meal moth, Plodia interpunctella (Lepidoptera: Pyralidae), is a ubiquitous pest in stored products, with the larvae inflicting the most damage. The molecular mechanisms underlying larval olfaction and associated behaviors remain poorly understood. Reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis revealed two odorant binding proteins of P. interpunctella (PintOBPs) with antenna-biased expression in larvae. Competitive binding assays revealed that both PintOBP18 and PintOBP19 bind to a variety of volatile compounds emitted from stored food products, with ethyl linoleate identified as the best ligand for both proteins. According to RNA interference tests, the attractiveness of ethyl linoleate to P. interpunctella larvae was not significantly affected by the silencing of PintOBP18 or PintOBP19 separately. Nevertheless, the attractiveness of this odorant to larvae was severely impaired when both OBPs were knocked down. Furthermore, molecular docking and site-directed mutagenesis studies demonstrated that Ser66 in PintOBP18 and Val62 in PintOBP19 play crucial roles in binding ethyl linoleate. These findings advance our understanding of olfactory recognition in P. interpunctella larvae and provide potential targets for developing olfactory disruption strategies to control storage pests.
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Affiliation(s)
- Xiaoyan Zhu
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun 130024, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China; Jilin Provincial Engineering Laboratory of Avian Ecology and Conservation Genetics, Northeast Normal University, Changchun 130024, China
| | - Xiaofei Liu
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun 130024, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China; Jilin Provincial Engineering Laboratory of Avian Ecology and Conservation Genetics, Northeast Normal University, Changchun 130024, China
| | - Qiling Yu
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun 130024, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China; Jilin Provincial Engineering Laboratory of Avian Ecology and Conservation Genetics, Northeast Normal University, Changchun 130024, China
| | - Yi Liu
- School of Life Sciences and Engineering, Northwest Minzu University, China
| | - Li Wang
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun 130024, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China; Jilin Provincial Engineering Laboratory of Avian Ecology and Conservation Genetics, Northeast Normal University, Changchun 130024, China
| | - Wenmei Du
- Jilin Provincial International Cooperation Key Laboratory for Biological Control of Agricultural Pests, Jilin Province Technology Research Center of Biological Control Engineering, Institute of Biological Control, Jilin Agricultural University, Changchun 130118, China
| | - Wei Lun Ng
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, 43900 Sepang, Selangor, Malaysia
| | - Bingzhong Ren
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun 130024, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China; Jilin Provincial Engineering Laboratory of Avian Ecology and Conservation Genetics, Northeast Normal University, Changchun 130024, China
| | - Qi Chen
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, School of Life Sciences, Northeast Normal University, Changchun 130024, China; Key Laboratory of Vegetation Ecology, Ministry of Education, Northeast Normal University, Changchun 130024, China; Jilin Provincial Engineering Laboratory of Avian Ecology and Conservation Genetics, Northeast Normal University, Changchun 130024, China.
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Wang GY, Li YY, Shao KM, Li SL, Guan Y, Guo H, Chen L. Electrophysiological Responses and Field Attractants of Plutella xylostella Adults to Volatiles from Brassica oleracea. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2025; 73:8925-8934. [PMID: 40195004 DOI: 10.1021/acs.jafc.5c03182] [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: 04/09/2025]
Abstract
The diamondback moth (DBM), Plutella xylostella (Lepidoptera: Plutellidae), is a major pest of crucifers. Many volatile compounds emitted by cruciferous vegetables are known to mediate the attraction of DBM adults to host plant and oviposition sites. However, development of highly effective attractants for DBM management is still needed. Here, we first analyzed the volatile compounds emitted by macerated broccoli leaves with gas chromatographic-electroantennographic detection and gas chromatography/mass spectrometry. Eight compounds, including benzaldehyde, limonene, phenylacetaldehyde, acetophenone, linalool, 2-phenylethyl alcohol, methyl salicylate, and methyl 2-methoxybenzoate, elicited robust responses from the antennae. Then, we conducted multiple field trapping experiments involving the "addition approach" (individually adding components to the most abundant component, D-limonene) and the "subtraction approach" to evaluate the attractiveness of different blends. We found that a 3-component blend of D-limonene, 2-phenylethyl alcohol, and methyl 2-methoxybenzoate (3:2:1) is the most effective attractant. This blend holds great potential for monitoring and management of P. xylostella populations.
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Affiliation(s)
- Guang-Yu Wang
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Hebei University, Baoding 071002, China
| | - Ya-Ya Li
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Hebei University, Baoding 071002, China
| | - Kai-Min Shao
- Department of Electronic Information and Electrical Engineering, Anyang Institute of Technology, Anyang 455099, China
| | - Shen-Lei Li
- Guangzhou Ruifeng Biotechnology Co. Ltd., Guangzhou 511370, China
| | - Yun Guan
- Guangzhou Ruifeng Biotechnology Co. Ltd., Guangzhou 511370, China
| | - Hao Guo
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Hebei University, Baoding 071002, China
| | - Li Chen
- College of Life Sciences/Hebei Basic Science Center for Biotic Interactions, Hebei University, Baoding 071002, China
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Wang W, He Y, Yu H, Yang X, Wu K. Evaluation of the Control Efficacy of Bt Maize Expressing Cry1Ab and Vip3Aa Proteins Against Agrotis ypsilon (Rottemberg). INSECTS 2025; 16:119. [PMID: 40003749 PMCID: PMC11856819 DOI: 10.3390/insects16020119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2025] [Revised: 01/21/2025] [Accepted: 01/24/2025] [Indexed: 02/27/2025]
Abstract
Bt maize is the main means to control many lepidopteran pests in the world, but its control efficacy against Agrotis ypsilon (Rottemberg), an important insect pest of maize seedlings, remains unclear until now. The interaction between the insect and Bt transgenic maize events (DBN9936 (expressing Cry1Ab), DBN9501 (expressing Vip3Aa), and DBN3601T (expressing Cry1Ab and Vip3Aa)) was investigated using bioassay and insect behavioral tests. The results show that the Cry1Ab contents in different tissues of DBN9936 were 47.78-82.60 μg·g-1, and the Vip3Aa contents in DBN9501 were 15.29-27.78 μg·g-1. The contents of Cry1Ab and Vip3Aa in DBN3601T were 32.08-79.08 and 10.16-17.52 μg·g-1, respectively. There was no significant difference in total Bt protein content between the leaves and stems; however, that the content in both was significantly higher than that in the roots. The larvae were most sensitive to the Vip3Aa protein, and the corrected mortalities of larvae feeding on DBN9501 and DBN3601T were greater than 89.65% at the seedling stage, significantly higher than those feeding on DBN9936 (16.46-76.13%). The corrected mortalities of the third to the fifth instar larvae feeding on Bt maize root were as follows: DBN3601T (54.00-96.60%) > DBN9501 (24.67-70.88%) > DBN9936 (6.67-53.31%). The results of behavioral tests for Bt/non-Bt maize plant selection indicated that the larvae mainly fed on non-Bt maize while showing antifeedant behavior toward Bt maize, and the moth preferred to lay eggs on undamaged or slightly damaged Bt maize. It is concluded that DBN3601T maize has a strong control efficacy for A. ypsilon, which can play an important role in building an integrated pest management strategy for the insect.
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Affiliation(s)
- Wenhui Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (W.W.); (Y.H.); (H.Y.); (X.Y.)
- Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yuting He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (W.W.); (Y.H.); (H.Y.); (X.Y.)
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Huan Yu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (W.W.); (Y.H.); (H.Y.); (X.Y.)
| | - Xianming Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (W.W.); (Y.H.); (H.Y.); (X.Y.)
| | - Kongming Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (W.W.); (Y.H.); (H.Y.); (X.Y.)
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Cuniolo A, Martin MV, Berón CM. Ferroptotic cyanobacteria as biocontrol agent of the southern house mosquito Culex quinquefasciatus. J Invertebr Pathol 2024; 207:108225. [PMID: 39455051 DOI: 10.1016/j.jip.2024.108225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 10/09/2024] [Accepted: 10/21/2024] [Indexed: 10/28/2024]
Abstract
Culex quinquefasciatus is a hematophagous mosquito, widely distributed around the world, that plays a crucial role in public and veterinary health. As an efficient vector of etiological agents, it exhibits a marked preference for urban environments and human blood. Despite advances in mosquito-borne disease control, managing mosquito populations remains an economically efficient and safe strategy to reduce the impact of epidemic outbreaks. However, achieving this goal requires ecologically acceptable tools that ensure sustainability and minimize adverse environmental impacts. In the present work, we investigated the effect of a non-toxigenic model cyanobacterium on Cx. quinquefasciatus larvae through regulated cell death. We observed that heat stress treatment of Synechocystis PCC 6803 inducing ferroptosis, results in larval lipid oxidation, leading to their death. This effect can be mitigated by rearing larvae in an environment containing canonical inhibitors of ferroptosis, such as ferrostatin 1, or antioxidants, like glutathione and ascorbic acid. Furthermore, larval cell death induced by ferroptotic cyanobacteria is closely linked to oxidative dysregulation and lipid peroxidation, both hallmarks of ferroptosis. Moreover, while ferroptotic Synechocystis significantly affects larval development, it does not influence oviposition site selection by gravid females.
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Affiliation(s)
- Antonella Cuniolo
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET), Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Argentina
| | - María Victoria Martin
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET), Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina.
| | - Corina M Berón
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC-CONICET), Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina.
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Jones RT, Fagbohun IK, Spencer FI, Chen-Hussey V, Paris LA, Logan JG, Hiscox A. A review of Musca sorbens (Diptera: Muscidae) and Musca domestica behavior and responses to chemical and visual cues. JOURNAL OF MEDICAL ENTOMOLOGY 2024; 61:845-860. [PMID: 38795384 DOI: 10.1093/jme/tjae070] [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: 12/20/2023] [Revised: 03/28/2024] [Accepted: 05/08/2024] [Indexed: 05/27/2024]
Abstract
Musca flies (Diptera: Muscidae) have been found culpable in the mechanical transmission of several infectious agents, including viruses, bacteria, protozoans, and helminths, particularly in low-income settings in tropical regions. In large numbers, these flies can negatively impact the health of communities and their livestock through the transmission of pathogens. In some parts of the world, Musca sorbens is of particular importance because it has been linked with the transmission of trachoma, a leading cause of preventable and irreversible blindness or visual impairment caused by Chlamydia trachomatis, but the contribution these flies make to trachoma transmission has not been quantified and even less is known for other pathogens. Current tools for control and monitoring of house flies remain fairly rudimentary and have focused on the use of environmental management, insecticides, traps, and sticky papers. Given that the behaviors of flies are triggered by chemical cues from their environment, monitoring approaches may be improved by focusing on those activities that are associated with nuisance behaviors or with potential pathogen transmission, and there are opportunities to improve fly control by exploiting behaviors toward semiochemicals that act as attractants or repellents. We review current knowledge on the odor and visual cues that affect the behavior of M. sorbens and Musca domestica, with the aim of better understanding how these can be exploited to support disease monitoring and guide the development of more effective control strategies.
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Affiliation(s)
- Robert T Jones
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
- Department of Disease Control, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK
| | - Ifeoluwa K Fagbohun
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
| | - Freya I Spencer
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
| | - Vanessa Chen-Hussey
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
| | - Laura A Paris
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
| | - James G Logan
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
- Department of Disease Control, London School of Hygiene & Tropical Medicine, Keppel Street, London, UK
| | - Alexandra Hiscox
- Arctech Innovation, The Cube, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, UK
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Chen ZL, Li XS, Wei S, Yu TH, Zhao HY, Xu Q, Li XF, Peng H, Tang R. Inundative practice for screening siRNA management candidates against a notorious predatory beetle using olfactory silencing. Int J Biol Macromol 2024; 254:127505. [PMID: 37863136 DOI: 10.1016/j.ijbiomac.2023.127505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/25/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023]
Abstract
Calosoma maximoviczi, a predatory pest beetle, poses a significant threat to wild silk farm production due to its predation on wild silkworms. Given the coexistence of this species with beneficial silkworms in the farm orchards, chemical pesticides are not an ideal solution for controlling its population. In this study, we employed a comprehensive multi-target RNA interference (RNAi) approach to disrupt the olfactory perception of C. maximoviczi through independently silencing 16 odorant receptors (ORs) in the respective genders. Specifically, gene-specific siRNAs were designed to target a panel of ORs, allowing us to investigate the specific interactions between odorant receptors and ligands within this species. Our investigation led to identifying four candidate siOR groups that effectively disrupted the beetle's olfactory tracking of various odorant ligands associated with different trophic levels. Furthermore, we observed sex-specific differences in innate RNAi responses reflected by subsequent gene expression, physiological and behavioral consequences, underscoring the complexity of olfactory signaling and emphasizing the significance of considering species/sex-specific traits when implementing pest control measures. These findings advance our understanding of olfactory coding patterns in C. maximoviczi beetles and establish a foundation for future research in the field of pest management strategies.
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Affiliation(s)
- Zeng-Liang Chen
- Sericultural Institute of Liaoning Province, 108 Fengshan Road, Fengcheng 118100, China
| | - Xi-Sheng Li
- Sericultural Institute of Liaoning Province, 108 Fengshan Road, Fengcheng 118100, China
| | - Shuang Wei
- Guangzhou Customs Technology Center, Guangzhou 510632, China
| | - Ting-Hong Yu
- Sericultural Institute of Liaoning Province, 108 Fengshan Road, Fengcheng 118100, China
| | - Hong-Yu Zhao
- Sericultural Institute of Liaoning Province, 108 Fengshan Road, Fengcheng 118100, China
| | - Qiang Xu
- Guangzhou Customs Technology Center, Guangzhou 510632, China
| | - Xian-Feng Li
- Guangzhou Customs Technology Center, Guangzhou 510632, China
| | - Hui Peng
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China
| | - Rui Tang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China.
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Zhang C, Bai P, Kang J, Dong T, Zheng H, Zhang X. Deciphering the Chemical Fingerprint of Astragalus membranaceus: Volatile Components Attractive to Bruchophagus huonchili Wasps. INSECTS 2023; 14:809. [PMID: 37887821 PMCID: PMC10607655 DOI: 10.3390/insects14100809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023]
Abstract
Bruchophagus huonchili is a pest that poses a serious threat to the yield and quality of Astragalus membranaceus seeds. In this study, we employed solid-phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS) to identify volatile organic compounds (VOCs) in A. membranaceus pods during the pod-filled period. Additionally, we utilized a Y-tube olfactometer to measure the behavioral response of B. huonchili to different individual VOCs and specific VOC-based formulations. The most effective formulations were further evaluated for their effectiveness in attracting wasps in the field. Our findings revealed that A. membranaceus pods emit 25 VOCs, including green leaf volatiles (GLVs) and terpenoid and aromatic compounds. Among these compounds, five were found to be most attractive to B. huonchili at the following concentrations: 10 µg/µL cis-β-ocimene, 500 µg/µL hexyl acetate, 100 µg/µL hexanal, 1 µg/µL decanal, and 10 µg/µL β-caryophyllene, with respective response rates of 67.65%, 67.74%, 65.12%, 67.57%, and 66.67%. In addition, we evaluated 26 mixed VOC formulations, and three of them were effective at attracting B. huonchili. Furthermore, field experiments showed that one of the formulations was significantly more effective than the others, which could be used for monitoring B. huonchili populations.
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Affiliation(s)
- Chaoran Zhang
- College of Plant Protection, Shanxi Agricultural University, Jinzhong 030801, China; (C.Z.); (J.K.); (T.D.); (H.Z.)
| | - Penghua Bai
- Institute of Plant Protection, Tianjin Academy of Agricultural Sciences, Tianjin 300384, China;
| | - Jie Kang
- College of Plant Protection, Shanxi Agricultural University, Jinzhong 030801, China; (C.Z.); (J.K.); (T.D.); (H.Z.)
| | - Tian Dong
- College of Plant Protection, Shanxi Agricultural University, Jinzhong 030801, China; (C.Z.); (J.K.); (T.D.); (H.Z.)
| | - Haixia Zheng
- College of Plant Protection, Shanxi Agricultural University, Jinzhong 030801, China; (C.Z.); (J.K.); (T.D.); (H.Z.)
| | - Xianhong Zhang
- College of Plant Protection, Shanxi Agricultural University, Jinzhong 030801, China; (C.Z.); (J.K.); (T.D.); (H.Z.)
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Characterizations of botanical attractant of Halyomorpha halys and selection of relevant deorphanization candidates via computational approach. Sci Rep 2022; 12:4170. [PMID: 35264639 PMCID: PMC8907264 DOI: 10.1038/s41598-022-07840-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 01/27/2022] [Indexed: 12/13/2022] Open
Abstract
Halyomorpha halys has been recognized as a global cross-border pest species. Along with well-established pheromone trapping approaches, there have been many attempts to utilize botanical odorant baits for field monitoring. Due to sensitivity, ecological friendliness, and cost-effectiveness for large-scale implementation, the selection of botanical volatiles as luring ingredients and/or synergists for H. halys is needed. In the current work, botanical volatiles were tested by olfactometer and electrophysiological tests. Results showed that linalool oxide was a potential candidate for application as a behavioral modifying chemical. It drove remarkable attractiveness toward H. halys adults in Y-tube assays, as well as eliciting robust electroantennographic responsiveness towards antennae. A computational pipeline was carried out to screen olfactory proteins related to the reception of linalool oxide. Simulated docking activities of four H. halys odorant receptors and two odorant binding proteins to linalool oxide and nerolidol were performed. Results showed that all tested olfactory genes were likely to be involved in plant volatile-sensing pathways, and they tuned broadly to tested components. The current work provides insights into the later development of field demonstration strategies using linalool oxide and its molecular targets.
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Gil MF, Fassolari M, Battaglia ME, Berón CM. Culex quinquefasciatus larvae development arrested when fed on Neochloris aquatica. PLoS Negl Trop Dis 2021; 15:e0009988. [PMID: 34860833 PMCID: PMC8641890 DOI: 10.1371/journal.pntd.0009988] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/09/2021] [Indexed: 11/28/2022] Open
Abstract
Culex quinquefasciatus is a cosmopolitan species widely distributed in the tropical and subtropical areas of the world. Due to its long history of close association with humans, the transmission of arboviruses and parasites have an important role in veterinary and public health. Adult females feed mainly on birds although they can also feed on humans and other mammals. On the other hand, larvae are able to feed on a great diversity of microorganisms, including microalgae, present in natural or artificial breeding sites with a high organic load. These two particularities, mentioned above, are some of the reasons why this mosquito is so successful in the environment. In this work, we report the identification of a microalga found during field sampling in artificial breeding sites, in a group of discarded tires with accumulated rainwater. Surprisingly, only one of them had a bright green culture without mosquito larvae while the other surrounding tires contained a large number of mosquito larvae. We isolated and identified this microorganism as Neochloris aquatica, and it was evaluated as a potential biological control agent against Cx. quinquefasciatus. The oviposition site preference in the presence of the alga by gravid females, and the effects on larval development were analyzed. Additionally, microalga effect on Cx. quinquefasciatus wild type, naturally infected with the endosymbiotic bacterium Wolbachia (w+) and Wolbachia free (w−) laboratory lines was explored. According to our results, even though it is chosen by gravid females to lay their eggs, the microalga had a negative effect on the development of larvae from both populations. Additionally, when the larvae were fed with a culture of alga supplemented with balanced fish food used as control diet, they were not able to reverse its effect, and were unable to complete development until adulthood. Here, N. aquatica is described as a biological agent, and as a potential source of bioactive compounds for the control of mosquito populations important in veterinary and human health. Culex quinquefasciatus, known as a southern house mosquito, is a domestic and cosmopolitan species widely distributed in the tropical and subtropical regions of the Americas, Asia, Africa, and Oceania. It is strongly associated with humans and other vertebrates, and it has been given a relevant role in the transmission of arboviruses and parasitic diseases, some of them very important in veterinary and human health. Adult females feed mainly on birds, although they can also feed on humans and other mammals, being effective not only in surviving in the environment, but in vectoring pathogens as well. In addition, Culex pipiens and Cx. quinquefasciatus, members of the Cx. pipiens complex, coexist in a distribution hybrid zone and their mating produces viable offspring, expanding its distribution even more. Moreover, larvae can be developed in different environments, including standing water generated by humans and livestock, being able to exploit food sources found in them. This ability to get adapted to different conditions make it a successful host with great potential to initiate and facilitate the transmission of pathogens, therefore it is essential to develop environmentally friendly control systems that can be used in integrated vector management programs. In this context, the use of microorganisms, like microalgae, with the capability to alter or slow down the development of insects such as Cx. quinquefasciatus must be exhaustively explored.
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Affiliation(s)
- M. Florencia Gil
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC—CONICET); Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
| | - Marisol Fassolari
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC—CONICET); Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
| | - Marina E. Battaglia
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC—CONICET); Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
- * E-mail: (MEB); (CMB)
| | - Corina M. Berón
- Instituto de Investigaciones en Biodiversidad y Biotecnología (INBIOTEC—CONICET); Fundación para Investigaciones Biológicas Aplicadas (FIBA), Mar del Plata, Argentina
- * E-mail: (MEB); (CMB)
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10
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Robinson A, Bristow J, Holl MV, Makalo P, Alemayehu W, Bailey RL, Macleod D, Birkett MA, Caulfield JC, Sarah V, Pickett JA, Dewhirst S, Chen-Hussey V, Woodcock CM, D’Alessandro U, Last A, Burton MJ, Lindsay SW, Logan JG. Responses of the putative trachoma vector, Musca sorbens, to volatile semiochemicals from human faeces. PLoS Negl Trop Dis 2020; 14:e0007719. [PMID: 32126087 PMCID: PMC7069642 DOI: 10.1371/journal.pntd.0007719] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 03/13/2020] [Accepted: 01/13/2020] [Indexed: 12/12/2022] Open
Abstract
The putative vector of trachoma, Musca sorbens, prefers to lay its eggs on human faeces on the ground. This study sought to determine whether M. sorbens females were attracted to volatile odours from human faeces in preference to odours from the faeces of other animals, and to determine whether specific volatile semiochemicals mediate selection of the faeces. Traps baited with the faeces of humans and local domestic animals were used to catch flies at two trachoma-endemic locations in The Gambia and one in Ethiopia. At all locations, traps baited with faeces caught more female M. sorbens than control traps baited with soil, and human faeces was the most successful bait compared with soil (mean rate ratios 44.40, 61.40, 10.50 [P<0.001]; 8.17 for child faeces [P = 0.004]). Odours from human faeces were sampled by air entrainment, then extracts of the volatiles were tested by coupled gas chromatography-electroantennography with laboratory-reared female M. sorbens. Twelve compounds were electrophysiologically active and tentatively identified by coupled mass spectrometry-gas chromatography, these included cresol, indole, 2-methylpropanoic acid, butanoic acid, pentanoic acid and hexanoic acid. It is possible that some of these volatiles govern the strong attraction of M. sorbens flies to human faeces. If so, a synthetic blend of these chemicals, at the correct ratios, may prove to be a highly attractive lure. This could be used in odour-baited traps for monitoring or control of this species in trachoma-endemic regions.
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Affiliation(s)
- Ailie Robinson
- Department of Disease Control, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
| | - Julie Bristow
- Department of Disease Control, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | - Matthew V. Holl
- Department of Disease Control, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
| | - Pateh Makalo
- Medical Research Council Unit, The Gambia, The Gambia
| | | | - Robin L. Bailey
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - David Macleod
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Michael A. Birkett
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | - John C. Caulfield
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | - Virginia Sarah
- Global Partnerships Executive, The Fred Hollows Foundation, Crawford Mews, London, United Kingdom
| | - John A. Pickett
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | - Sarah Dewhirst
- ARCTEC, Chariot Innovations Ltd, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Vanessa Chen-Hussey
- ARCTEC, Chariot Innovations Ltd, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Christine M. Woodcock
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden, Hertfordshire, United Kingdom
| | | | - Anna Last
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Matthew J. Burton
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Steve W. Lindsay
- Department of Biosciences, Durham University, Durham, County Durham, United Kingdom
| | - James G. Logan
- Department of Disease Control, London School of Hygiene and Tropical Medicine, Keppel Street, London, United Kingdom
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11
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Wan F, Yin C, Tang R, Chen M, Wu Q, Huang C, Qian W, Rota-Stabelli O, Yang N, Wang S, Wang G, Zhang G, Guo J, Gu LA, Chen L, Xing L, Xi Y, Liu F, Lin K, Guo M, Liu W, He K, Tian R, Jacquin-Joly E, Franck P, Siegwart M, Ometto L, Anfora G, Blaxter M, Meslin C, Nguyen P, Dalíková M, Marec F, Olivares J, Maugin S, Shen J, Liu J, Guo J, Luo J, Liu B, Fan W, Feng L, Zhao X, Peng X, Wang K, Liu L, Zhan H, Liu W, Shi G, Jiang C, Jin J, Xian X, Lu S, Ye M, Li M, Yang M, Xiong R, Walters JR, Li F. A chromosome-level genome assembly of Cydia pomonella provides insights into chemical ecology and insecticide resistance. Nat Commun 2019; 10:4237. [PMID: 31530873 PMCID: PMC6748993 DOI: 10.1038/s41467-019-12175-9] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 08/20/2019] [Indexed: 01/27/2023] Open
Abstract
The codling moth Cydia pomonella, a major invasive pest of pome fruit, has spread around the globe in the last half century. We generated a chromosome-level scaffold assembly including the Z chromosome and a portion of the W chromosome. This assembly reveals the duplication of an olfactory receptor gene (OR3), which we demonstrate enhances the ability of C. pomonella to exploit kairomones and pheromones in locating both host plants and mates. Genome-wide association studies contrasting insecticide-resistant and susceptible strains identify hundreds of single nucleotide polymorphisms (SNPs) potentially associated with insecticide resistance, including three SNPs found in the promoter of CYP6B2. RNAi knockdown of CYP6B2 increases C. pomonella sensitivity to two insecticides, deltamethrin and azinphos methyl. The high-quality genome assembly of C. pomonella informs the genetic basis of its invasiveness, suggesting the codling moth has distinctive capabilities and adaptive potential that may explain its worldwide expansion. The codling moth, Cydia pomonella, is one of the major pests of pome fruit (apples and pears) and walnuts. Here, the authors sequence and analyze its genome, providing insights on olfactory and detoxification processes that may underlie its worldwide expansion.
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Affiliation(s)
- Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China. .,Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China.
| | - Chuanlin Yin
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Rui Tang
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Maohua Chen
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Yangling, 712100, China
| | - Qiang Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Cong Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Wanqiang Qian
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Omar Rota-Stabelli
- Department of Sustainable Agro-ecosystems and Bioresources, IASMA Research and Innovation Centre, Fondazione Edmund Mach, Via Mach 1, 38010, San Michele all'Adige (TN), Italy
| | - Nianwan Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Shuping Wang
- Technical Centre for Animal Plant and Food Inspection and Quarantine, Shanghai Custom, Shanghai, 200135, China
| | - Guirong Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Guifen Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jianyang Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Liuqi Aloy Gu
- Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, 66046, USA
| | - Longfei Chen
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Longsheng Xing
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Yu Xi
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Feiling Liu
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Kejian Lin
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Mengbo Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Wei Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Kang He
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Ruizheng Tian
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Yangling, 712100, China
| | | | - Pierre Franck
- INRA, Plantes et Systèmes de culture Horticole, 228 route de l'Aérodrome, 84914, Avignon Cedex 09, France
| | - Myriam Siegwart
- INRA, Plantes et Systèmes de culture Horticole, 228 route de l'Aérodrome, 84914, Avignon Cedex 09, France
| | - Lino Ometto
- Department of Sustainable Agro-ecosystems and Bioresources, IASMA Research and Innovation Centre, Fondazione Edmund Mach, Via Mach 1, 38010, San Michele all'Adige (TN), Italy.,Department of Biology and Biotechnology, University of Pavia, 27100, Pavia, Italy
| | - Gianfranco Anfora
- Department of Sustainable Agro-ecosystems and Bioresources, IASMA Research and Innovation Centre, Fondazione Edmund Mach, Via Mach 1, 38010, San Michele all'Adige (TN), Italy.,Centre Agriculture Food Environment (C3A), University of Trento, 38010, San Michele all'Adige (TN), Italy
| | - Mark Blaxter
- Edinburgh Genomics, and Institute of Evolutionary Biology, School of Biological Sciences, The King's Buildings, The University of Edinburgh, Edinburgh, EH9 3JT, UK
| | - Camille Meslin
- INRA, Institute of Ecology and Environmental Sciences of Paris, 78000, Versailles, France
| | - Petr Nguyen
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branišovská 31, 37005, České Budějovice, Czech Republic.,Faculty of Science, University of South Bohemia, Branišovská 1760, 37005, České Budějovice, Czech Republic
| | - Martina Dalíková
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branišovská 31, 37005, České Budějovice, Czech Republic.,Faculty of Science, University of South Bohemia, Branišovská 1760, 37005, České Budějovice, Czech Republic
| | - František Marec
- Biology Centre of the Czech Academy of Sciences, Institute of Entomology, Branišovská 31, 37005, České Budějovice, Czech Republic
| | - Jérôme Olivares
- INRA, Plantes et Systèmes de culture Horticole, 228 route de l'Aérodrome, 84914, Avignon Cedex 09, France
| | - Sandrine Maugin
- INRA, Plantes et Systèmes de culture Horticole, 228 route de l'Aérodrome, 84914, Avignon Cedex 09, France
| | - Jianru Shen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jinding Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jinmeng Guo
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiapeng Luo
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Bo Liu
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Wei Fan
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Likai Feng
- Institute of Plant Protection, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, 832000, China
| | - Xianxin Zhao
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xiong Peng
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Yangling, 712100, China
| | - Kang Wang
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Yangling, 712100, China
| | - Lang Liu
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Yangling, 712100, China
| | - Haixia Zhan
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Wanxue Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Guoliang Shi
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chunyan Jiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jisu Jin
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaoqing Xian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Sha Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Mingli Ye
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Meizhen Li
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Minglu Yang
- Xinjiang Production & Construction Corps Key Laboratory of Integrated Pest Management on Agriculture in South Xinjiang, Tarim University, Alar, 843300, China
| | - Renci Xiong
- Xinjiang Production & Construction Corps Key Laboratory of Integrated Pest Management on Agriculture in South Xinjiang, Tarim University, Alar, 843300, China
| | - James R Walters
- Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, 66046, USA.
| | - Fei Li
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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12
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Zhong YZ, Tang R, Zhang JP, Yang SY, Chen GH, He KL, Wang ZY, Zhang F. Behavioral Evidence and Olfactory Reception of a Single Alarm Pheromone Component in Halyomorpha halys. Front Physiol 2018; 9:1610. [PMID: 30483157 PMCID: PMC6243750 DOI: 10.3389/fphys.2018.01610] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 10/25/2018] [Indexed: 11/13/2022] Open
Abstract
Halyomorpha halys is a major herbivore insect in the fruit orchards of China that has become a devastating invasive pest in North America and Europe since its accidental introductions in the 1990s and 2000s, respectively. Like other hemipteran insects, H. halys releases defensive chemicals against natural enemies, including (E)-2-decenal, which is an aldehyde associated with alarm pheromones. In this study, a series of electrophysiological and behavioral tests were conducted to characterize the alarm functions of (E)-2-decenal among H. halys adults and nymphs. An antennal transcriptome was obtained from a Chinese H. halys population, and 44 odorant-binding protein (OBP) genes were annotated. Among them, five putative alarm pheromone-binding proteins were screened and were extremely consistent with their homologs from US populations. These five OBPs were later expressed in a heterologous expression system, harvested, and then challenged with (E)-2-decenal in a binding assay. All five OBPs showed high binding activities to (E)-2-decenal, which demonstrated its behavioral significance as a defensive component in H. halys, as well as being the first report of its olfactory reception. These findings will help develop behavioral-mediating tools as part of integrated pest management approaches to control this invasive pest.
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Affiliation(s)
- Yong-Zhi Zhong
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Rui Tang
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Centre for Agriculture and Biosciences International (CABI) East Asia, Beijing, China
| | - Jin-Ping Zhang
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Centre for Agriculture and Biosciences International (CABI) East Asia, Beijing, China
| | - Shi-Yong Yang
- Life Science College, Anhui Normal University, Wuhu, China
| | - Guo-Hua Chen
- College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Kang-Lai He
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhen-Ying Wang
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Feng Zhang
- MARA-CABI Joint Laboratory for Bio-safety, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Centre for Agriculture and Biosciences International (CABI) East Asia, Beijing, China
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