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Yagoo A, Milton MCJ, Vilvest J. Exploring the bioactive potential leaves of Sphaeranthus indicus: Targeting immature stages of Aedes aegypti and Culex quinquefasciatus mosquito vectors through bioassay-guided screening and fraction isolation. Parasitol Int 2024; 98:102819. [PMID: 37863178 DOI: 10.1016/j.parint.2023.102819] [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: 08/04/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
Mosquito control is vital for combating mosquito-borne diseases, but concerns exist regarding the use of synthetic insecticides. This study aimed to explore eco-friendly alternatives derived from natural sources. The larvicidal, pupicidal, and ovicidal activities of various fractions obtained from the hexane leaf extract of Sphaeranthus indicus were investigated against two important mosquito vectors, Aedes aegypti and Culex quinquefasciatus. S. indicus leaves were extracted with hexane and column chromatography was performed with hexane, ethyl acetate, methanol, and their mixtures as eluents. Among the ten fractions (F1-F10) evaluated, fraction 'F-4' exhibited significant activity against third instar larvae, pupae, and eggs of both mosquito species, closely followed by 'F-5' . At a concentration of 10 ppm, 'F-4' achieved 100% mortality in larvae and displayed LC50 values of 5.08 ppm and 5.03 ppm for Ae. aegypti and Cx. quinquefasciatus larvae, respectively. The LC50 values for pupae were 6.12 ppm and 5.83 ppm for Ae. aegypti and Cx. quinquefasciatus, respectively. Regarding ovicidal activity, 'F-4' demonstrated percentages ranging from 63.2% to 64.8% against Ae. aegypti and Cx. quinquefasciatus eggs, respectively. These findings underscore the potent larvicidal, pupicidal, and ovicidal effects of fraction 'F-4' from S. indicus against the targeted mosquito species. Further research is warranted to identify the active compounds responsible for these effects and explore practical applications for sustainable mosquito control strategies.
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Affiliation(s)
- Alex Yagoo
- PG & Research Department of Advanced Zoology & Biotechnology, Loyola College (Autonomous), Chennai 600034, India.
| | - M C John Milton
- PG & Research Department of Advanced Zoology & Biotechnology, Loyola College (Autonomous), Chennai 600034, India
| | - Jelin Vilvest
- PG & Research Department of Advanced Zoology & Biotechnology, Loyola College (Autonomous), Chennai 600034, India
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Qie X, Ren Y, Chen X, Du Y, Dong K, Hu Z. Role of DSC1 in Drosophila melanogaster synaptic activities in response to haedoxan A. INSECT SCIENCE 2023; 30:1677-1688. [PMID: 36752392 DOI: 10.1111/1744-7917.13180] [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: 11/03/2022] [Revised: 01/12/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Drosophila sodium channel 1 (DSC1) encodes a voltage-gated divalent cation channel that mediates neuronal excitability in insects. Previous research revealed that DSC1 knockout Drosophila melanogaster conferred different susceptibility to insecticides, which indicated the vital regulation role of DSC1 under insecticide stress. Haedoxan A (HA) is a lignan compound isolated from Phryma leptostachya, and we found that HA has excellent insecticidal activity and is worthy of further study as a botanical insecticide. Herein, we performed bioassay and electrophysiological experiments to test the biological and neural changes in the larval Drosophila with/without DSC1 knockout in response to HA. Bioassay results showed that knockout of DSC1 reduced the sensitivity to HA in both w1118 (a common wild-type strain in the laboratory) and parats1 (a pyrethroid-resistant strain) larvae. Except for parats1 /DSC1-/- , electrophysiology results implicated that HA delayed the decay rate and increased the frequency of miniature excitatory junctional potentials of Drosophila from w1118 , parats1 , and DSC1-/- strains. Moreover, the neuromuscular synapse excitatory activities of parats1 /DSC1-/- larvae were more sensitive to HA than DSC1-/- larvae, which further confirmed the functional contribution of DSC1 to neuronal excitability. Collectively, these results indicated that the DSC1 channel not only regulated the insecticidal activity of HA, but also maintained the stability of neural circuits through functional interaction with voltage-gated sodium channels. Therefore, our study provides useful information for elucidating the regulatory mechanism of DSC1 in the neural system of insects involving the action of HA derived from P. leptostachya.
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Affiliation(s)
- Xingtao Qie
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi Province, China
- Department of Plant Protection, College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Yaxin Ren
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi Province, China
| | - Xueting Chen
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi Province, China
| | - Yuzhe Du
- Southern Insect Management Research Unit, Agricultural Research Service, United States Department of Agriculture, Stoneville, MS, USA
| | - Ke Dong
- Department of Biology, Duke University, Durham, NC, USA
| | - Zhaonong Hu
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi Province, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi Province, China
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Northwest A&F University, Yangling, Shanxi Province, China
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Pei Y, Cao W, Yu W, Peng C, Xu W, Zuo Y, Wu W, Hu Z. Identification and functional characterization of the dirigent gene family in Phryma leptostachya and the contribution of PlDIR1 in lignan biosynthesis. BMC PLANT BIOLOGY 2023; 23:291. [PMID: 37259047 DOI: 10.1186/s12870-023-04297-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/19/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Furofuran lignans, the main insecticidal ingredient in Phryma leptostachya, exhibit excellent controlling efficacy against a variety of pests. During the biosynthesis of furofuran lignans, Dirigent proteins (DIRs) are thought to be dominant in the stereoselective coupling of coniferyl alcohol to form ( ±)-pinoresinol. There are DIR family members in almost every vascular plant, but members of DIRs in P. leptostachya are unknown. To identify the PlDIR genes and elucidate their functions in lignan biosynthesis, this study performed transcriptome-wide analysis and characterized the catalytic activity of the PlDIR1 protein. RESULTS Fifteen full-length unique PlDIR genes were identified in P. leptostachya. A phylogenetic analysis of the PlDIRs classified them into four subfamilies (DIR-a, DIR-b/d, DIR-e, and DIR-g), and 12 conserved motifs were found among them. In tissue-specific expression analysis, except for PlDIR7, which displayed the highest transcript abundance in seeds, the other PlDIRs showed preferential expression in roots, leaves, and stems. Furthermore, the treatments with signaling molecules demonstrated that PlDIRs could be significantly induced by methyl jasmonate (MeJA), salicylic acid (SA), and ethylene (ETH), both in the roots and leaves of P. leptostachya. In examining the tertiary structure of the protein and the critical amino acids, it was found that PlDIR1, one of the DIR-a subfamily members, might be involved in the region- and stereo-selectivity of the phenoxy radical. Accordingly, LC-MS/MS analysis demonstrated the catalytic activity of recombinant PlDIR1 protein from Escherichia coli to direct coniferyl alcohol coupling into ( +)-pinoresinol. The active sites and hydrogen bonds of the interaction between PlDIR1 and bis-quinone methide (bisQM), the intermediate in ( +)-pinoresinol formation, were analyzed by molecular docking. As a result, 18 active sites and 4 hydrogen bonds (Asp-42, Ala-113, Leu-138, Arg-143) were discovered in the PlDIR1-bisQM complex. Moreover, correlation analysis indicated that the expression profile of PlDIR1 was closely connected with lignan accumulations after SA treatment. CONCLUSIONS The results of this study will provide useful clues for uncovering P. leptostachya's lignan biosynthesis pathway as well as facilitate further studies on the DIR family.
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Affiliation(s)
- Yakun Pei
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Wenhan Cao
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Wenwen Yu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Chaoyang Peng
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Wenhao Xu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Yayun Zuo
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Wenjun Wu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Zhaonong Hu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, 712100, Shaanxi, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, 712100, Shaanxi, China.
- Key Laboratory of Integrated Pest Management On Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, 712100, Shaanxi, China.
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Xu Z, Chen J, Shang R, Yang F, Xie C, Liu Y, Wen X, Fu J, Xiong W, Wu L. The Mosquito Larvicidal Activity of Lignans from Branches of Cinnamomum camphora chvar. Borneol. Molecules 2023; 28:molecules28093769. [PMID: 37175177 PMCID: PMC10179941 DOI: 10.3390/molecules28093769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The chemical investigation of branches of Cinnamomum camphora chvar. Borneol guided by mosquito larvicidal activity led to the isolation of fourteen known lignans (1-14). Their structures were elucidated unambiguously based on comprehensive spectroscopic analysis and comparison with the literature data. This is the first report of these compounds being isolated from branches of Cinnamomum camphora chvar. Borneol. Compounds 3-5 and 8-14 were isolated from this plant for the first time. All compounds isolated were subjected to anti-inflammatory, mosquito larvicidal activity and cytotoxic activity evaluation. Compounds (1-14) showed significant mosquito larvicidal activity against Culex pipiens quinquefasciatus with lethal mortality in 50% (LC50), with values ranging from 0.009 to 0.24 μg/mL. Among them, furofuran lignans(1-8) exhibited potent mosquito larvicidal activity against Cx. p. quinquefasciatus, with LC50 values of 0.009-0.021 μg/mL. From the perspective of a structure-activity relationship, compounds with a dioxolane group showed high mosquito larvicidal activity and have potential to be developed into a mosquitocide.
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Affiliation(s)
- Zhiyong Xu
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Junhui Chen
- Institute of Microbiology, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Ruifeng Shang
- School of Pharmaceutical Sciences, Jiangxi University of Chinese Medicine, Nanchang 330096, China
| | - Fan Yang
- College of Food Sciences and Engineering, Jiangxi Agricultural University, Nanchang 330096, China
| | - Chuanqi Xie
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Yunfei Liu
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Xuefang Wen
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Jianping Fu
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Wei Xiong
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Lei Wu
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, China
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Pei Y, Hao H, Zuo Y, Xue Y, Aioub AAA, Hu Z. Functional validation of CYP304A1 associated with haedoxan A detoxification in Aedes albopictus by RNAi and transgenic drosophila. PEST MANAGEMENT SCIENCE 2023; 79:447-453. [PMID: 36175391 DOI: 10.1002/ps.7213] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 08/18/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Insect cytochrome P450 monooxygenases play important roles in the detoxification metabolism of endogenous and exogenous compounds. Haedoxan A (HA) from Phryma leptostachya L. is a highly efficient natural pesticide used to control houseflies and mosquitos. CYP4C21 and CYP304A1 were previously demonstrated to be transcriptionally increased in Aedes albopictus in response to HA exposure, but their involvement in HA metabolism is unknown. RESULTS Our data showed that CYP304A1 expression levels in A. albopictus were highest in third-instar larvae, and the expression level of CYP4C21 decreased significantly with the growth of instars, with the lowest occurring in the pupal stage. Compared with the control, the silencing of CYP304A1 and CYP4C21 genes by chitosan nanoparticle-mediated RNA interference could deplete 58.2% and 54.0% of the expression of corresponding genes, respectively. The bioassay data showed that knocking down the expression of CYP304A1 increased the mortality of A. albopictus when exposed to HA at LC30 and LC50 doses, but did not significantly increase mortality after silencing CYP4C21. Our data demonstrated that CYP304A1, but not CYP4C21, may be involved in HA detoxification. Moreover, the resistance ratio of CYP304A1 overexpressing flies was approximately 2-fold higher than that of the control line. The metabolized product of HA by CYP304A1 needs to be further confirmed by in vitro expression. CONCLUSION This finding showed that inducibility was not always linked to detoxifying capabilities, and enhanced our understanding of the molecular basis of HA metabolic detoxification in A. albopictus. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yakun Pei
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, China
| | - Huanhuan Hao
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, China
| | - Yayun Zuo
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, China
| | - Yuxin Xue
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, China
| | - Ahmed A A Aioub
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Zhaonong Hu
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, China
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Yangling, China
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Li Y, Wang R, Pei Y, Yu W, Wu W, Li D, Hu Z. Phylogeny and functional characterization of the cinnamyl alcohol dehydrogenase gene family in Phryma leptostachya. Int J Biol Macromol 2022; 217:407-416. [PMID: 35841957 DOI: 10.1016/j.ijbiomac.2022.07.063] [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: 01/15/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 11/05/2022]
Abstract
Phryma leptostachya has attracted increasing attention because it is rich in furofuran lignans with a wide range of biological activities. Biosynthesis of furofuran lignans begins with the dimerization of coniferyl alcohol, one of the monolignol. Cinnamyl alcohol dehydrogenase (CAD) catalyzes the final step of monolignol biosynthesis, reducing cinnamyl aldehydes to cinnamyl alcohol. As it is in the terminal position of monolignol biosynthesis, its type and activity can cause significant changes in the total amount and composition of lignans. Herein, combined with bioinformatics analysis and in vitro enzyme assays, we clarified that CAD in P. leptostachya belonged to a multigene family, and identified nearly the entire CAD gene family. Our in-depth characterization about the functions and structures of two major CAD isoforms, PlCAD2 and PlCAD3, showed that PlCAD2 exhibited the highest catalytic activity, and coniferyl aldehyde was its preferred substrate, followed by PlCAD3, and sinapyl aldehyde was its preferred substrate. Considering the accumulation patterns of furofuran lignans and expression patterns of PlCADs, we speculated that PlCAD2 was the predominant CAD isoform responsible for furofuran lignans biosynthesis in P. leptostachya. Moreover, these CADs found here can also provide effective biological parts for lignans and lignins biosynthesis.
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Affiliation(s)
- Yankai Li
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China
| | - Rui Wang
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China
| | - Yakun Pei
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China
| | - Wenwen Yu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China
| | - Wenjun Wu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China
| | - Ding Li
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling, Shaanxi 712100, China.
| | - Zhaonong Hu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China; Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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Qie X, Du Y, Aioub AAA, Dong K, Hu Z. Negative cross-resistance of a pyrethroid-resistant Drosophila mutant to Phryma leptostachya-derived haedoxan A. INSECT SCIENCE 2022; 29:817-826. [PMID: 34547832 DOI: 10.1111/1744-7917.12973] [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: 04/09/2021] [Revised: 08/29/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Voltage-gated sodium channels are the primary target of pyrethroid insecticides. Mutations in sodium channel confer knockdown resistance (kdr) to pyrethroids in various arthropod pests. Haedoxan A (HA) is the major insecticidal component from Phryma leptostachya. It has been shown that HA alters electrical responses at the Drosophila neuromuscular junction and modifies the gating properties of cockroach sodium channels expressed in Xenopus oocytes. However, whether sodium channel mutations that confer pyrethroid resistance also affect the action of HA is unknown. In this study, we conducted bioassays using HA and permethrin in two Drosophila melanogaster strains: w1118 , an insecticide-susceptible strain, and parats1 , a pyrethroid-resistant strain due to a I265N mutation in the sodium channel, and identified a new case of negative cross-resistance (NCR) between permethrin and HA. Both parats1 larvae and adults were more resistant to permethrin, as expected. However, both parats1 larvae and adults were more sensitive to HA compared to w1118 . We confirmed that the I265N mutation reduced the sensitivity to permethrin of a Drosophila sodium channel variant, DmNav 22, expressed in Xenopus oocytes. Interestingly, the I265N mutation also abolished the effect of HA on sodium channels. Further characterization showed that I265 on the sodium channels is critical for the action of both pyrethroids and HA on sodium channels, pointing to an overlapping mode of action between pyrethroids and HA on the sodium channel. Overall, our results suggest an I265N-independnt mechanism(s) in parats1 flies that is responsible for the NCR between permethrin and HA at the whole insect level.
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Affiliation(s)
- Xingtao Qie
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi, 712100, China
| | - Yuzhe Du
- Southern Insect Management Research Unit, Agriculture Research Service, United States Department of Agriculture, 141 Experiment Station Road, Stoneville, MS, 38776, USA
| | - Ahmed A A Aioub
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Ke Dong
- Department of Biology, Duke University, Durham, NC, 27708, USA
| | - Zhaonong Hu
- Institution of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi, 712100, China
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Hao H, Zuo Y, Fang J, Sun A, Aioub AAA, Hu Z. Transcriptome Analysis of Aedes albopictus (Diptera: Culicidae) Larvae Exposed With a Sublethal Dose of Haedoxan A. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:2284-2291. [PMID: 33999150 DOI: 10.1093/jme/tjab089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Indexed: 06/12/2023]
Abstract
Aedes albopictus is the vector of arbovirus diseases including yellow fever, dengue, Zika virus, and chikungunya fever, and it poses an enormous threat to human health worldwide. Previous studies have revealed that haedoxan A (HA), which is an insecticidal sesquilignan from Phryma leptostachya L., is a highly effective natural insecticide for managing mosquitoes and houseflies; however, the mechanisms underlying the response of Ae. albopictus after treatment with sublethal concentrations of HA is not clear. Here, high-throughput sequencing was used to analyze the gene expression changes in Ae. albopictus larvae after treatment with the LC30 of HA. In total, 416 differentially expressed genes (DEGs) were identified, including 328 upregulated genes and 88 downregulated genes. Identification and verification of related DEGs were performed by RT-qPCR. The results showed that two P450 unigenes (CYP4C21 and CYP304A1), one carboxylesterase, and one ABC transporter (ABCG1) were induced by HA, which indicated that these detoxifying enzyme genes might play a major role in the metabolic and detoxification processes of HA. Additionally, acetylcholine receptor subunit ɑ2 (AChRα2), AChRα5, AChRα9, and the glutamate receptor ionotropic kainate 2 (GRIK2) were found to be upregulated in HA-treated larvae, suggesting that HA affected the conduction of action potentials and synaptic transmission by disrupting the function of neural receptors. These results provide a foundation for further elucidating the target of HA and the mechanism of detoxification metabolism in Ae. albopictus.
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Affiliation(s)
- Huanhuan Hao
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, Shaanxi, China
| | - Yayun Zuo
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, Shaanxi, China
| | - Jiameng Fang
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, Shaanxi, China
| | - Anqi Sun
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, Shaanxi, China
| | - Ahmed A A Aioub
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Zhaonong Hu
- Institute of Pesticide Science, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
- Key Laboratory for Botanical Pesticide R&D of Shaanxi Province, Yangling, Shaanxi, China
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, College of Plant Protection, Yangling, Shaanxi, China
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Chen Y, Xiao S, Huang J, Xue W, He S. A Synthetic View on Haedoxans and Related Neolignans From Phryma leptostachya. Front Chem 2020; 8:460. [PMID: 32626686 PMCID: PMC7311856 DOI: 10.3389/fchem.2020.00460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/04/2020] [Indexed: 11/30/2022] Open
Abstract
Haedoxans are a series of sesquilignan natural products isolated from the traditional insecticidal plant Phryma leptostachya. Given their significant insecticidal activity, haedoxans and related analogs have been considered as potential agents for plant defense. Moreover, these compounds also exhibit promising antifungal, antibacterial, and anticancer activities. The present paper is a review of the structure, biological activity, and chemical synthesis of naturally occurring haedoxan-like molecules.
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Affiliation(s)
- Yang Chen
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Guiyang, China
| | - Shu Xiao
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Guiyang, China
| | - Jian Huang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Guiyang, China
| | - Wei Xue
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University, Guiyang, China
| | - Shuzhong He
- Guizhou Engineering Laboratory for Synthetic Drugs, School of Pharmaceutical Sciences, Guizhou University, Guiyang, China
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Xia J, Liu Y, Zhou Y, Zhang J, Li C, Yin X, Tian X, Zhang X. Two novel alkaloids from Corydalis curviflora Maxim. and their insecticidal activity. PEST MANAGEMENT SCIENCE 2020; 76:2360-2367. [PMID: 32020760 DOI: 10.1002/ps.5772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/02/2020] [Accepted: 02/04/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Botanical pesticide plays an essential role in the control of agricultural pests. Corydalis curviflora Maxim. is used as a cholagogue and larvicide in the rural areas of Northwest China. In this study, our objective was to identify the insect active ingredients of C. curviflora extract. RESULTS Bioassay-guided isolation of the high active fraction led to the identification of two novel N-demethyl hexahydrobenzophenanthridine-type alkaloids, Curviflorain A (1) and Curviflorain B (2), together with nine known alkaloids, ambiguanine A (3), ambiguanine B (4), ambiguanine C (5), 6-acetylambinine (6), 1,1-dimethyl-6-methoxy-7-hydroxyl-1,2,3,4-tetrahydroisoquinoline (7), hendersine B (8), coryximine (9), isochotensine (10) and corysolidine (11). Compounds 1, 2, and 6 showed promising activity to the larvae of Culex pipiens pallens Coq. and Aedes albopictus Skuse. These compounds were also tested against the insect pests, Mythimna separata walker. and Schizaphis graminum Rondani. CONCLUSION These findings provide a better understanding of the insecticidal activity of C. curviflora extract and the active compounds. This has the potential to lead to a more effective botanical insecticide.
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Affiliation(s)
- JianKai Xia
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, China
| | - Yao Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, China
| | - Yu Zhou
- Research and Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - JiaYao Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, China
| | - ChunHuan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, China
| | - Xia Yin
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, China
| | - XiangRong Tian
- Research and Development Center of Biorational Pesticide, Northwest A&F University, Yangling, Shaanxi, China
| | - XiuYun Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi, China
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Effect of tiliamosine, a bis, benzylisoquinoline alkaloid isolated from Tiliacora acuminata (Lam.) Hook. f. & Thom on the immature stages of filarial mosquito Culex quinquefasciatus say (Diptera: Culicidae). Exp Parasitol 2019; 204:107719. [PMID: 31255572 DOI: 10.1016/j.exppara.2019.107719] [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: 04/20/2019] [Revised: 05/23/2019] [Accepted: 06/26/2019] [Indexed: 11/22/2022]
Abstract
The present study was aimed to check the mosquitocidal activity of tiliamosine isolated from Tiliacora acuminata (Lam.) Hook. f. & Thom against immature stages of Culex quinquefasciatus. Eggs and larvae of Cx. quinquefasciatus were exposed to different concentrations of tiliamosine - 0.5, 1.0, 1.5 and 2.0 ppm - prepared using DMSO. The compound tiliamosine showed good larvicidal activity with LC50 and LC90 values of 1.13 and 2.85 ppm respectively, against third-instar larvae of Cx. quinquefasciatus at 24 h. In control, the larvae exhibited normal movement. Tiliamosine exhibited 91% ovicidal activity at 2.0 ppm concentration after 120 h post-treatment. Lowest concentration of tiliamosine (0.5 ppm) showed 19% egg mortality. Histopathology study of the compound-treated larvae showed serious damage on the larval midgut cells. The treated larvae showed restless movement which was different from that of the control larvae. The larvae exhibited malformation in development. The compound tiliamosine was harmless to non-target organisms P. reticulata and Dragon fly nymph at tested concentrations. The compound was highly active and inhibited AChE in a concentration-dependent manner. Computational analysis of the tiliamosine had strong interaction with AChE1 of Cx. quinquefasciatus. This report clearly suggests that the isolated compound can be used as an insecticide to control mosquito population and thus prevent the spread of vector-borne diseases.
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Li Y, Wei J, Fang J, Lv W, Ji Y, Aioub AAA, Zhang J, Hu Z. Insecticidal Activity of Four Lignans Isolated from Phryma leptostachya. Molecules 2019; 24:molecules24101976. [PMID: 31121976 PMCID: PMC6572576 DOI: 10.3390/molecules24101976] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 05/19/2019] [Accepted: 05/20/2019] [Indexed: 11/16/2022] Open
Abstract
A new lignan (T4) and three known lignans (T1, T2, and T3) were isolated from the methanol extract of the roots of Phryma leptostachya using bioassay-guided method, and their structures were identified as phrymarolin I (T1), II (T2), haedoxan A (T3), and methyl 4-((6a-acetoxy-4-(6-methoxybenzo[d][1,3]dioxol-5-yl)tetrahydro-1H,3H-furo[3,4-c]furan-1-yl)oxy)-1-hydroxy-2,2-dimethoxy-5-oxocyclopent-3-ene-1-carboxylate (T4) byNMR and ESI-MS spectral data. Bioassay results revealed that haedoxan A exhibited remarkably high insecticidal activity against Mythimna separata with a stomach toxicity LC50 value of 17.06 mg/L and a topical toxicity LC50 value of 1123.14 mg/L at 24 h, respectively. Phrymarolin I and compound T4 also showed some stomach toxicity against M. separata with KD50 values of 3450.21 mg/L at 4 h and 2807.10 mg/L at 8 h, respectively. In addition, phrymarolin I and haedoxan A exhibited some stomach toxicity against Plutella xylostella with an LC50 value of 1432.05 and 857.28 mg/L at 48 h, respectively. In conclusion, this study demonstrated that lignans from P. leptostachya are promising as a novel class of insecticides or insecticide lead compounds for developing botanical pesticides.
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Affiliation(s)
- Yankai Li
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
| | - Jiaqi Wei
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
| | - Jiameng Fang
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
| | - Wenbo Lv
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
| | - Yufei Ji
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
| | - Ahmed A A Aioub
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
- Plant Protection Department, Faculty of Agriculture, Zagazig University, 44511 Zagazig, Egypt.
| | - Jiwen Zhang
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
- College of Chemistry & Pharmacy, Northwest A & F University, Yangling, Shaanxi 712100, China.
| | - Zhaonong Hu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling, Shaanxi 712100, China.
- Key Laboratory for Botanical Pesticide R & D of Shaanxi Province, Yangling, Shaanxi 712100, China.
- Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau, Ministry of Agriculture, Yangling, Shaanxi 712100, China.
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Raja TRW, Ganesan P, Gandhi MR, Duraipandiyan V, Paulraj MG, Balakrishna K, Al-Dhabi NA, Ignacimuthu S. Effect of compound Musizin isolated from Rhamnus wightii Wight and Arn on the immature stages of filarial vector mosquito Culex quinquefasciatus Say (Diptera: Culicidae) and its non-target studies. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Effect of compound isolated from Lawsonia inermis (L.) (Myrtales: Lythraceae) on the immature stages of filarial vector Culex quinquefasciatus Say (Diptera: Culicidae) and its docking analysis with Acetylcholinesterase (AChE1). BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Veni T, Pushpanathan T, Mohanraj J. Larvicidal and ovicidal activity of Terminalia chebula Retz. (Family: Combretaceae) medicinal plant extracts against Anopheles stephensi, Aedes aegypti and Culex quinquefasciatus. J Parasit Dis 2016; 41:693-702. [PMID: 28848262 DOI: 10.1007/s12639-016-0869-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 11/26/2016] [Indexed: 11/24/2022] Open
Abstract
Insect-borne diseases remain to this day a major source of illness and death worldwide. The resistance to chemical insecticides among mosquito species has been considered as a setback in vector control. Mosquito control programs, botanical origin may have the potential to eliminate eggs and larvae. So, the larvicidal and ovicidal activities of crude benzene, hexane, ethyl acetate, chloroform and methanol extracts of Terminalia chebula were assayed for their toxicity against three important vector mosquitoes, viz., Anopheles stephensi, Aedes aegypti, and Culex quinquefasciatus. The larval mortality was observed after 24 h of exposure. All extracts showed moderate larvicidal effects; however, the highest larval mortality was found in the methanol extract of T. chebula against the larvae of A. stephensi, A. aegypti, and C. quinquefasciatus with the LC50 values were 87.13, 93.24 and 111.98 ppm, respectively. Mean percent hatchability of the ovicidal activity was observed 48 h post treatment. The percent hatchability was inversely proportional to the concentration of extract and directly proportional to the eggs. All the five solvent extracts showed moderate ovicidal activity; however, the maximum egg mortality (zero hatchability) was observed in the methanol extract of T. chebula at 200 and 250 ppm against A. stephensi, A. aegypti and C. quinquefasciatus showed 100% mortality at 300 ppm. No mortality was recorded in the control. The finding of the present investigation revealed that the leaf extract of Terminalia chebula possesses remarkable larvicidal and ovicidal activity against medically important vector mosquitoes and make this plant product promising as an alternative to synthetic insecticide in mosquito control programs.
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Affiliation(s)
- Thangapandi Veni
- Department of Zoology, Kamaraj College, Tuticorin, Tamil Nadu 628003 India
| | - Thambusamy Pushpanathan
- Department of Zoology, St. Xavier's College (Autonomous), Palayamkottai, Tamil Nadu 627002 India
| | - Jeyaraj Mohanraj
- Department of Zoology, Kamaraj College, Tuticorin, Tamil Nadu 628003 India
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Reegan AD, Gandhi MR, Sivaraman G, Cecilia KF, Ravindhran R, Balakrishna K, Paulraj MG, Ignacimuthu S. Bioefficacy of ecbolin A and ecbolin B isolated from Ecbolium viride (Forsk.) Alston on dengue vector Aedes aegypti L. (Diptera: Culicidae). Parasite Epidemiol Control 2016; 1:78-84. [PMID: 29988190 PMCID: PMC5991860 DOI: 10.1016/j.parepi.2016.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 03/15/2016] [Accepted: 03/15/2016] [Indexed: 12/03/2022] Open
Abstract
Ecbolin A and ecbolin B were isolated from ethyl acetate extract of Ecbolium viride (Forsk.) Alston root and evaluated for larvicidal and growth disturbance activities against Aedes aegypti L. (Diptera: Culicidae). For larvicidal activity, the third instar larvae of A. aegypti were exposed to different concentrations viz., 1.0, 2.5, 5.0 and 10 ppm for each compound. Among the two compounds screened, ecbolin B recorded highest larvicidal activity with LC50 and LC90 values of 0.70 and 1.42 ppm, respectively. In control, the larval behaviour was normal. The active compound ecbolin B was tested for growth disruption activity at sub lethal concentrations viz., 0.5, 1.0 ppm and observed for malformation like larval gut elongation, larval longevity, intermediates, malformed adults, failed adult emergence and compared with methoprene. The results showed significant level of larva-pupa intermediates, pupa-adult intermediates, malformed adult emergence and less adult formation against A. aegypti. The histopathological results revealed a severe damage on the midgut epithelial columnar cells (CC) and cuboidal cells (CU) in ecbolin B treated larvae of A. aegypti. Similarly peritrophic membrane (pM) was also observed to be damaged in the treated larvae. The present results suggest that, ecbolin B could be used as a larvicidal agent against dengue vector A. aegypti.
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Affiliation(s)
- Appadurai Daniel Reegan
- Division of vector control, Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, India
- National Vector Borne Disease Control Programme, ROH&FW, Govt. of India, Besant Nagar, Chennai 600 090, Tamil Nadu, India
| | - Munusamy Rajiv Gandhi
- Division of vector control, Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, India
| | - Govindan Sivaraman
- Division of vector control, Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, India
| | | | - Ramalingam Ravindhran
- Department of Plant Biology and Biotechnology, Loyola College, Chennai 600 034, India
| | - Kedike Balakrishna
- Division of vector control, Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, India
| | - Michael Gabriel Paulraj
- Division of vector control, Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, India
| | - Savarimuthu Ignacimuthu
- Division of vector control, Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, India
- Visiting Professor Programme, Deanship of Research, King Saud University, Riyadh 11451, Saudi Arabia
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Yu BT, Ding YM, Mo XC, Liu N, Li HJ, Mo JC. Survivorship and fecundity of Culex pipiens pallens feeding on flowering plants and seed pods with differential preferences. Acta Trop 2016; 155:51-7. [PMID: 26739652 DOI: 10.1016/j.actatropica.2015.12.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/14/2015] [Accepted: 12/23/2015] [Indexed: 11/16/2022]
Abstract
Adult mosquitoes rely on ingestion of sugar from plants to survive, swarm and mate. Culex pipiens pallens Coguillett is the primary vector of lymphatic filariasis and epidemic encephalitis. Little is known about the effect of feeding on different sugar sources on the survivorship and fecundity of Cx. pipiens pallens. In the present study, newly emerged mosquitoes were exposed to several flowering plant and seed pod species with different olfactory preferences, and the survival times of mosquitoes exposed to these sugar sources were determined. The proportions of mosquitoes that ingested sugar from host plants were investigated by cold anthrone tests. The numbers of eggs per egg raft laid by mosquitoes were compared when they were provided with different sugar sources and one blood meal. The results revealed that feeding on different kinds of sugar sources significantly affected female and male mosquitoes' survival times. Cold anthrone tests indicated that the proportions of sugar-positive mosquitoes from different nutritional regimes within 24h corresponded to the preference rankings of Cx. pipiens pallens to these sugar sources, and rapid declines in the proportions of surviving individuals might be attributed to their insufficient ingestion of sugar from nutritional regimes. Feeding on different sugar sources strongly affected the proportions of engorged mosquitoes, and females that had fed on their preferred sugar sources laid more eggs than mosquitoes provided with less preferred sugar sources. The results would provide insights in developing mosquito control strategies that target the sugar feeding behavior of mosquitoes.
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Affiliation(s)
- Bao-Ting Yu
- Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, 388 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Yan-Mei Ding
- Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, 388 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Xiao-Chang Mo
- Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, 388 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Ning Liu
- Zhejiang Academy of Agricultural Sciences, 200 Shiqiao Road, Hangzhou, Zhejiang 310021, China
| | - Hong-Jie Li
- Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, 388 Yuhangtang Road, Hangzhou, Zhejiang 310058, China
| | - Jian-Chu Mo
- Ministry of Agriculture Key Laboratory of Agricultural Entomology, Institute of Insect Sciences, Zhejiang University, 388 Yuhangtang Road, Hangzhou, Zhejiang 310058, China.
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Insight into the Mode of Action of Haedoxan A from Phryma leptostachya. Toxins (Basel) 2016; 8:53. [PMID: 26907348 PMCID: PMC4773806 DOI: 10.3390/toxins8020053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/14/2016] [Accepted: 02/15/2016] [Indexed: 11/26/2022] Open
Abstract
Haedoxan A (HA) is a major active ingredient in the herbaceous perennial plant lopseed (Phryma leptostachya L.), which is used as a natural insecticide against insect pests in East Asia. Here, we report that HA delayed the decay rate of evoked excitatory junctional potentials (EJPs) and increased the frequency of miniature EJPs (mEJPs) on the Drosophila neuromuscular junction. HA also caused a significant hyperpolarizing shift of the voltage dependence of fast inactivation of insect sodium channels expressed in Xenopus oocytes. Our results suggest that HA acts on both axonal conduction and synaptic transmission, which can serve as a basis for elucidating the mode of action of HA for further designing and developing new effective insecticides.
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Tan F, Zheng S, Gao P, Li S, Hu Z, Wu W, Zhang J. Synthesis and Larvicidal Activity of Phrymarolin Derivatives against Culex Pipiens Pallens. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Twenty-eight new phrymarolin derivatives, including twenty-one ethers, six esters and a dehydroxy phrymarolin, were prepared from phrymarolin I and the structures of all the derivatives were confirmed by 1H NMR and 13C NMR spectroscopic and MS data analyses. Larvicidal activities of these phrymarolin analogues were assayed against 4th instar larvae of Culex pipiens pallens. The ester derivatives of phrymarolin showed lower larvicidal activity than phrymarolin I, but some of the ether derivatives and dehydroxy phrymarolin showed much higher activity. Two ether derivatives, 1–18 and 1–19, showed significant larvicidal activity with LC50 values of 1.89 and 7.78 mg/L, respectively.
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Affiliation(s)
- Fangfang Tan
- College of Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Shaojun Zheng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China
| | - Peng Gao
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China
| | - Shengkun Li
- Shaanxi Province Key Laboratory of Research and Development of Botanic Pesticide, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhaonong Hu
- Shaanxi Province Key Laboratory of Research and Development of Botanic Pesticide, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenjun Wu
- Shaanxi Province Key Laboratory of Research and Development of Botanic Pesticide, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiwen Zhang
- College of Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
- Shaanxi Province Key Laboratory of Research and Development of Botanic Pesticide, Northwest A&F University, Yangling, Shaanxi 712100, China
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Kayashima Y, Murata S, Sato M, Matsuura K, Asanuma T, Chimoto J, Ishii T, Mochizuki K, Kumazawa S, Nakayama T, Yamakawa-Kobayashi K. Tea polyphenols ameliorate fat storage induced by high-fat diet in Drosophila melanogaster. Biochem Biophys Rep 2015; 4:417-424. [PMID: 29124233 PMCID: PMC5669444 DOI: 10.1016/j.bbrep.2015.10.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 09/27/2015] [Accepted: 10/28/2015] [Indexed: 11/17/2022] Open
Abstract
Background Polyphenols in tea are considered beneficial to human health. However, many such claims of their bioactivity still require in vitro and in vivo evidence. Results Using Drosophila melanogaster as a model multicellular organism, we assess the fat accumulation-suppressing effects of theaflavin (TF), a tea polyphenol; epitheaflagallin (ETG), which has an unknown function; and epigallocatechin gallate (EGCg), a prominent component of green tea. Dietary TF reduced the malondialdehyde accumulation related to a high-fat diet in adult flies. Other physiological and genetic responses induced by the high-fat diet, such as lipid accumulation in the fat body and expression of lipid metabolism-related genes, were ameliorated by the addition of TF, ETG, and EGCg, in some cases approaching respective levels without high-fat diet exposure. Continuous ingestion of the three polyphenols resulted in a shortened lifespan. Conclusion We provide evidence in Drosophila that tea polyphenols have a fat accumulation-suppressing effect that has received recent attention. We also suggest that tea polyphenols can provide different desirable biological activities depending on their composition and the presence or absence of other chemical components. Tea polyphenols have a fat accumulation-suppressing effect in Drosophila. Dietary theaflavin ameliorates high-fat diet-induced hydroperoxidase accumulation. The novel tea polyphenol epitheaflagallin strongly suppresses lipid accumulation. The beneficial effects of tea polyphenols can be enhanced by altering composition.
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Affiliation(s)
- Yasunari Kayashima
- Department of Food and Nutrition, Yamanashi Gakuin Junior College, 2-4-5 Sakaori, Kofu-shi, Yamanashi 400-8575, Japan
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
- Corresponding author at: Department of Food and Nutrition, Yamanashi Gakuin Junior College, 2-4-5 Sakaori, Kofu-shi, Yamanashi 400-8575, Japan. Fax: +81 55 224 1396.Department of Food and Nutrition, Yamanashi Gakuin Junior College2-4-5 SakaoriKofu-shiYamanashi400-8575Japan
| | - Shinichi Murata
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Misaki Sato
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kanako Matsuura
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshimichi Asanuma
- Industrial Research Institute of Shizuoka Prefecture, 2078 Makigaya, Aoi-ku, Shizuoka 421-1298, Japan
| | - Junko Chimoto
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takeshi Ishii
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kazuo Mochizuki
- Industrial Research Institute of Shizuoka Prefecture, 2078 Makigaya, Aoi-ku, Shizuoka 421-1298, Japan
| | - Shigenori Kumazawa
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Tsutomu Nakayama
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kimiko Yamakawa-Kobayashi
- School of Food and Nutritional Sciences, Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Liang Y, Li X, Gu Z, Qin P, Ji M. Toxicity of amorphigenin from the seeds of Amorpha fruticosa against the larvae of Culex pipiens pallens (Diptera: Culicidae). Molecules 2015; 20:3238-54. [PMID: 25690287 PMCID: PMC6272459 DOI: 10.3390/molecules20023238] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/05/2015] [Accepted: 02/10/2015] [Indexed: 11/16/2022] Open
Abstract
The larvicidal activity of the crude petroleum ether, ethyl acetate, acetone, chloroform and ethanol extracts of Amorpha fruticosa seeds was individually assayed for toxicity against the early fourth-instar larva of the mosquito, Culex pipiens pallens after 24 h exposure. Of the tested extracts, the ethanol one exhibited the highest larvicidal activity (LC50 = 22.69 mg/L). Amorphigenin (8'-hydroxyrotenone), a rotenoid compound which exhibits a strong larvicidal activity with LC50 and LC90 values of 4.29 and 11.27 mg/L, respectively, was isolated from the ethanol extract by column chromatograpy. Its structure was elucidated by 1H-NMR, UV and IR spectral data. Furthermore, investigation of amorphigenin's effects on mitochondrial complex I activity and protein synthesis in C. pipiens pallens larvae reveals that amorphigenin decreases mitochondrial complex I activities to 65.73% at 10.45 μmol/L, compared to the control, when NADH were used as the substrate. Meanwhile, amorphigenin at 10.45 μmol/L also caused a 1.98-fold decrease in protein content, compared to the control larvae treated with acetone only.
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Affiliation(s)
- Yaping Liang
- Department of Pesticide Science, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xiuwei Li
- Department of Pesticide Science, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Zumin Gu
- Department of Pesticide Science, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Peiwen Qin
- Department of Pesticide Science, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| | - Mingshan Ji
- Department of Pesticide Science, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
- Biopesticide Engineering Research Center of Liaoning Province, Shenyang 110866, China.
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Cecilia KF, Ravindhran R, Gandhi MR, Reegan AD, Balakrishna K, Ignacimuthu S. Larvicidal and pupicidal activities of ecbolin A and ecbolin B isolated from Ecbolium viride (Forssk.) Alston against Culex quinquefasciatus Say (Diptera: Culicidae). Parasitol Res 2014; 113:3477-84. [DOI: 10.1007/s00436-014-4018-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 07/04/2014] [Indexed: 12/24/2022]
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Govindarajan M, Sivakumar R. Ovicidal, larvicidal and adulticidal properties of Asparagus racemosus (Willd.) (Family: Asparagaceae) root extracts against filariasis (Culex quinquefasciatus), dengue (Aedes aegypti) and malaria (Anopheles stephensi) vector mosquitoes (Diptera: Culicidae). Parasitol Res 2014; 113:1435-49. [DOI: 10.1007/s00436-014-3784-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 01/10/2014] [Indexed: 11/30/2022]
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Zhang JW, Hu Z, Gao P, Wang JR, Hu ZN, Wu WJ. Synthesis and larvicidal activity against Culex pipiens pallens of new triazole derivatives of phrymarolin from Phryma leptostachya L. Int J Mol Sci 2013; 14:24064-73. [PMID: 24336066 PMCID: PMC3876095 DOI: 10.3390/ijms141224064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 11/22/2013] [Accepted: 12/03/2013] [Indexed: 12/03/2022] Open
Abstract
Twelve new triazole derivatives of Phrymarolin were prepared from Phrymarolin I and the structures of all the derivatives were fully characterized by 1H-NMR, 13C-NMR and MS spectral data analyses. Larvicidal activities against 4rd instar larvae of Culex pipiens pallens of these Phrymarolin analogues were assayed. Although the triazole derivatives of Phrymarolin showed certain larvicidal activity, they showed lower activity than Phrymarolin I. The typical non-natural groups triazole substituents reduced the larvicidal activity of Phrymarolin derivatives.
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Affiliation(s)
- Ji-Wen Zhang
- College of Sciences, Northwest A&F University, Yangling 712100, China; E-Mails: (J.-W.Z.); (Z.H.); (J.-R.W.); (W.-J.W.)
- Institute of Pesticide Science, Northwest A&F University, Yangling 712100, China
| | - Zhan Hu
- College of Sciences, Northwest A&F University, Yangling 712100, China; E-Mails: (J.-W.Z.); (Z.H.); (J.-R.W.); (W.-J.W.)
- Institute of Pesticide Science, Northwest A&F University, Yangling 712100, China
| | - Peng Gao
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 611756, China; E-Mail:
| | - Jun-Ru Wang
- College of Sciences, Northwest A&F University, Yangling 712100, China; E-Mails: (J.-W.Z.); (Z.H.); (J.-R.W.); (W.-J.W.)
| | - Zhao-Nong Hu
- Institute of Pesticide Science, Northwest A&F University, Yangling 712100, China
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-29-8709-2191
| | - Wen-Jun Wu
- College of Sciences, Northwest A&F University, Yangling 712100, China; E-Mails: (J.-W.Z.); (Z.H.); (J.-R.W.); (W.-J.W.)
- Institute of Pesticide Science, Northwest A&F University, Yangling 712100, China
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Larvicidal activity of lansiumamide B from the seeds of Clausena lansium against Aedes albopictus (Diptera: Culicidae). Parasitol Res 2012; 112:511-6. [DOI: 10.1007/s00436-012-3161-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 09/28/2012] [Indexed: 12/22/2022]
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