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Wang C, Nguyen T, Yang X, Mellick GD, Feng Y. Phytochemical investigation of Asarum sieboldii var. seoulense and the phenotypic profiles of its constituents against a Parkinson's Disease olfactory cell line. Bioorg Med Chem Lett 2023; 92:129386. [PMID: 37355024 DOI: 10.1016/j.bmcl.2023.129386] [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: 05/05/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023]
Abstract
Asarum sieboldii var. seoulense is a plant species under the family Aristolochiaceae and has been used for centuries as an ingredient in a well-known Traditional Chinese medicine (TCM), "Xixin", to treat symptoms of the neurodegenerative condition Parkinson's Disease (PD). Although there have been studies on the neuroprotective effect of this TCM, the phenotypic profiles of its chemical constituents against PD-implicated cellular organelles have not been reported. This research investigated the chemistry of A. sieboldii var. seoulense extract to identify the active small molecules that exhibited perturbation to the cellular compartments related to PD, potentially supporting its traditional application in treating this condition. 1H NMR-guided chemical investigation of this plant yielded twenty secondary metabolites which belong to isobutylamides, lignans and phenolics. The compounds were evaluated against an olfactory cell line derived from a PD patient using phenotypic assay. Several isolates, 2, 3, 7, 11, 13-16 and 18-20, were found to induce moderate perturbation to the staining of mitochondria, autophagosome and α-tubulin of the cells. Considering that PD pathogenesis is closely related to these cellular compartments, the results provided a rationale for the traditional application of Xixin in the treatment of PD.
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Affiliation(s)
- Chao Wang
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
| | - Thanh Nguyen
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
| | - Xinzhou Yang
- College of Pharmacy, South-Central University for Nationalities, Wuhan 430074, China
| | - George D Mellick
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
| | - Yunjiang Feng
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia.
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Lim H, Lee SY, Ho LY, Sit NW. Mosquito Larvicidal Activity and Cytotoxicity of the Extracts of Aromatic Plants from Malaysia. INSECTS 2023; 14:512. [PMID: 37367328 DOI: 10.3390/insects14060512] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/23/2023] [Accepted: 05/27/2023] [Indexed: 06/28/2023]
Abstract
Despite ongoing control efforts, the mosquito population and diseases vectored by them continue to thrive worldwide, causing major health concerns. There has been growing interest in the use of botanicals as alternatives to insecticides due to their widespread insecticidal properties, biodegradability, and adaptability to ecological conditions. In this study, we investigated the larvicidal activity and cytotoxicity effects of solvent extracts from three aromatic plants-Curcuma longa (turmeric), Ocimum americanum (hoary basil), and Petroselinum crispum (parsley)-against Aedes albopictus. Subsequently, we examined the phytochemical composition of the extracts through gas chromatography-mass spectrometry (GC-MS) analysis. Results revealed that the hexane extracts of O. americanum and P. crispum exhibited the greatest larvicidal activity with the lowest median lethal concentration (LC50) values (<30 µg/mL) at 24 h post-treatment, with the former found to be significantly less toxic towards African monkey kidney (Vero) cells. The GC-MS analysis of the said extract indicated the presence of different classes of metabolites, including phenylpropanoids, very long-chain alkanes, fatty acids and their derivatives, and terpenes, with the most abundant component being methyl eugenol (55.28%), most of which, have been documented for their larvicidal activities. These findings provide valuable insights into the potential use and development of bioinsecticides, particularly from O. americanum.
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Affiliation(s)
- Huimei Lim
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia
| | - Sook Yee Lee
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia
| | - Lai Yee Ho
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia
| | - Nam Weng Sit
- Department of Allied Health Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Bandar Barat, Kampar 31900, Malaysia
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Luu-dam NA, Le CVC, Satyal P, Le TMH, Bui VH, Vo VH, Ngo GH, Bui TC, Nguyen HH, Setzer WN. Chemistry and Bioactivity of Croton Essential Oils: Literature Survey and Croton hirtus from Vietnam. Molecules 2023; 28:2361. [PMID: 36903605 PMCID: PMC10005233 DOI: 10.3390/molecules28052361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/28/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Using essential oils to control vectors, intermediate hosts, and disease-causing microorganisms is a promising approach. The genus Croton in the family Euphorbiaceae is a large genus, with many species containing large amounts of essential oils, however, essential oil studies are limited in terms of the number of Croton species investigated. In this work, the aerial parts of C. hirtus growing wild in Vietnam were collected and analyzed by gas chromatography/mass spectrometry (GC/MS). A total of 141 compounds were identified in C. hirtus essential oil, in which sesquiterpenoids dominated, comprising 95.4%, including the main components β-caryophyllene (32.8%), germacrene D (11.6%), β-elemene (9.1%), α-humulene (8.5%), and caryophyllene oxide (5.0%). The essential oil of C. hirtus showed very strong biological activities against the larvae of four mosquito species with 24 h LC50 values in the range of 15.38-78.27 μg/mL, against Physella acuta adults with a 48 h LC50 value of 10.09 μg/mL, and against ATCC microorganisms with MIC values in the range of 8-16 μg/mL. In order to provide a comparison with previous works, a literature survey on the chemical composition, mosquito larvicidal, molluscicidal, antiparasitic, and antimicrobial activities of essential oils of Croton species was conducted. Seventy-two references (seventy articles and one book) out of a total of two hundred and forty-four references related to the chemical composition and bioactivity of essential oils of Croton species were used for this paper. The essential oils of some Croton species were characterized by their phenylpropanoid compounds. The experimental results of this research and the survey of the literature showed that Croton essential oils have the potential to be used to control mosquito-borne and mollusk-borne diseases, as well as microbial infections. Research on unstudied Croton species is needed to search for species with high essential oil contents and excellent biological activities.
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Affiliation(s)
- Ngoc Anh Luu-dam
- Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST), No. 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100803, Vietnam
- Vietnam Academy of Science and Technology (VAST), Graduate University of Science and Technology, No. 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100803, Vietnam
| | - Canh Viet Cuong Le
- Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST), 321 Huynh Thuc Khang, Hue 530000, Thua Thien Hue, Vietnam
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
| | - Thi Mai Hoa Le
- Faculty of Pharmacy, Vinh Medical University, 161 Nguyen Phong Sac, Vinh 461150, Vietnam
| | - Van Huong Bui
- Vietnam National Museum of Nature, Vietnam Academy of Science and Technology (VAST), No. 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100803, Vietnam
- Vietnam Academy of Science and Technology (VAST), Graduate University of Science and Technology, No. 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi 100803, Vietnam
| | - Van Hoa Vo
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
| | - Gia Huy Ngo
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 5000, Vietnam
| | - Thi Chinh Bui
- Faculty of Biology, University of Education, Hue University, 34 Le Loi St., Hue 530000, Vietnam
| | - Huy Hung Nguyen
- Department of Pharmacy, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 5000, Vietnam
| | - William N. Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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Catania R, Lima MAP, Potrich M, Sgolastra F, Zappalà L, Mazzeo G. Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)? INSECTS 2023; 14:247. [PMID: 36975932 PMCID: PMC10053700 DOI: 10.3390/insects14030247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
The recent global decline in insect populations is of particular concern for pollinators. Wild and managed bees (Hymenoptera, Apoidea) are of primary environmental and economic importance because of their role in pollinating cultivated and wild plants, and synthetic pesticides are among the major factors contributing to their decline. Botanical biopesticides may be a viable alternative to synthetic pesticides in plant defence due to their high selectivity and short environmental persistence. In recent years, scientific progress has been made to improve the development and effectiveness of these products. However, knowledge regarding their adverse effects on the environment and non-target species is still scarce, especially when compared to that of synthetic products. Here, we summarize the studies concerning the toxicity of botanical biopesticides on the different groups of social and solitary bees. We highlight the lethal and sublethal effects of these products on bees, the lack of a uniform protocol to assess the risks of biopesticides on pollinators, and the scarcity of studies on specific groups of bees, such as the large and diverse group of solitary bees. Results show that botanical biopesticides cause lethal effects and a large number of sublethal effects on bees. However, the toxicity is limited when comparing the effects of these compounds with those of synthetic compounds.
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Affiliation(s)
- Roberto Catania
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
| | - Maria Augusta Pereira Lima
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
- Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
| | - Michele Potrich
- Laboratório de Controle Biológico, Universidade Tecnológica Federal do Paraná—Dois Vizinhos (UTFPR-DV), Paraná 85660-000, Brazil
| | - Fabio Sgolastra
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Alma Mater Studiorum Università di Bologna, 40127 Bologna, Italy
| | - Lucia Zappalà
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
| | - Gaetana Mazzeo
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
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Wang Z, Wang Z, Lu B, Quan X, Zhao G, Zhang Z, Liu W, Tian Y. Antagonistic potential of Trichoderma as a biocontrol agent against Sclerotinia asari. Front Microbiol 2022; 13:997050. [PMID: 36267168 PMCID: PMC9578005 DOI: 10.3389/fmicb.2022.997050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/08/2022] [Indexed: 11/24/2022] Open
Abstract
In the present study, the inhibitory potential of 14 Trichoderma strains (isolated from Asarum rhizosphere) was investigated against Sclerotinia asari using the plate dilution method. The activity of antioxidant enzymes viz; catalase (CAT), peroxidase (POD), superoxide dismutase (SOD), and malondialdehyde (MDA) in S. asari treated with the two Trichoderma strains was also evaluated. Untargeted metabolomic analysis by using LC/MS analysis was carried out to determine differential metabolites in T. hamatum (A26) and T. koningiopsis (B30) groups. Moreover, transcriptome analysis of S. asari during the inhibition of S. asari by B30, and A26 compared with the control (CK) was performed. Results indicated that inhibition rates of T. koningiopsis B30, and T. hamatum A26 were highest compared to other strains. Similarly, non-volatile metabolites extracted from the B30 strain showed a 100% inhibition of S. asari. The activity of CAT, SOD, and POD decreased after treatment with A26 and B30 strains while increasing MDA content of S. asari. Antifungal activity of differential metabolites like abamectin, eplerenone, behenic acid, lauric acid, josamycin, erythromycin, and minocycline exhibited the highest inhibition of S. asari. Transcriptome analysis showed that differentially expressed genes were involved in many metabolic pathways which subsequently contributed toward antifungal activity of Trichoderma. These findings suggested that both Trichoderma strains (B30 and A26) could be effectively used as biocontrol agents against Sclerotinia disease of Asarum.
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Affiliation(s)
- Zhiqing Wang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
- *Correspondence: Zhiqing Wang,
| | - Ziqing Wang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Baohui Lu
- College of Plant Protection, Jilin Agricultural University, Changchun, Jilin, China
| | - Xingzhou Quan
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Guangyuan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Ze Zhang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Wanliang Liu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Yixin Tian
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
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Ramasubramanian R, Karthi S, Senthil-Nathan S, Sivanesh H, Shyam Sundar N, Stanley-Raja V, Ramkumar G, Chanthini KMP, Vasantha-Srinivasan P, Alarjani KM, Elshikh MS, Abdel-Megeed A, Krutmuang P. Effect of bacterial toxin identified from the Bacillus subtilis against the Cnaphalocrocis medinalis Guenée (Lepidoptera: Crambidae). TOXIN REV 2022. [DOI: 10.1080/15569543.2022.2111444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Ramakrishnan Ramasubramanian
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Sengodan Karthi
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
- Department of Entomology, University of Kentucky, Lexington, KY, USA
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Haridoss Sivanesh
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Narayanan Shyam Sundar
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Vethamonickam Stanley-Raja
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Govindaraju Ramkumar
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Kanagaraj Muthu-Pandian Chanthini
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | | | - Khaloud Mohammed Alarjani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Abdel-Megeed
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Patcharin Krutmuang
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
- Innovative Agriculture Research Centre, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
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Larvicidal Activity and Phytochemical Profiling of Sweet Basil (Ocimum basilicum L.) Leaf Extract against Asian Tiger Mosquito (Aedes albopictus). HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8050443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Applying larvicides to interrupt a mosquito’s life cycle is an important strategy for vector control. This study was conducted to evaluate the larvicidal properties of the hexane extract of sweet basil (Ocimum basilicum L.; family Lamiaceae) leaves against the wild strain of Asian tiger mosquito, Aedes albopictus (Skuse). Third instar larvae (20 larvae/replicate, n = 3) were exposed to different concentrations of the extract (6.25–200 µg/mL), and the mortality rate was recorded. Probit analysis showed that the median lethal concentration and 95% lethal concentration of the extract were 16.0 (10.9–22.1) and 53.0 (34.6–136.8) µg/mL, respectively, after 24 h exposure. Only the fractions F3, F4, and F5 from the column chromatography displayed high mortality rates of 91.7–100% at 25.0 µg/mL after 24 h exposure. Subsequent column chromatography from the pooled fraction yielded two active subfractions, H-F345-S2 and H-F345-S3, with mortality rates of 100% and 98.3 ± 2.9%, respectively, at 12.5 µg/mL. Gas chromatography–mass spectrometry analysis unveiled that methyl chavicol, 2-(2-butoxyethoxy)ethanol, cedrelanol, methyl eugenol, 2,4,di-tert-butylphenol, and phytol were the major components in both subfractions with some of them being reported as larvicidal compounds. The results suggest that sweet basil has substantial larvicidal activity against Ae. albopictus mosquito and is a potential source of naturally derived larvicide.
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Martina PF, Le Vraux A, Ferreyra D, Uliana R, Celaya LS, Sanchez Gonzalez F, Kolb Koslobky N. Chemical composition and larvicidal activity of Ocimum species essential oils from the south of the Paranaense forest (Argentine) against Aedes aegypti (Diptera: Culicidae) larvae. JOURNAL OF ESSENTIAL OIL RESEARCH 2022. [DOI: 10.1080/10412905.2022.2075478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Pablo F. Martina
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
| | - Agostina Le Vraux
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
| | - Darío Ferreyra
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
| | - Roberto Uliana
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
| | - Liliana S. Celaya
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
| | - Felipa Sanchez Gonzalez
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
| | - Nicolás Kolb Koslobky
- Central Laboratory, Faculty of Exact Chemical and Natural Sciences, National University of Misiones, Posadas, Argentina
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Liu H, Wang C. The genus Asarum: A review on phytochemistry, ethnopharmacology, toxicology and pharmacokinetics. JOURNAL OF ETHNOPHARMACOLOGY 2022; 282:114642. [PMID: 34537281 DOI: 10.1016/j.jep.2021.114642] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/28/2021] [Accepted: 09/11/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In essentially every quadrant of the globe, many species of genus Asarum are used as a common herbal medicine and appear in many formulas or Kampo. Crude drug from several medicinal plants of genus Asarum (MA) known as Asari Radix et Rhizoma (ARR) has been proven to have the functions of dispelling cold, relieving pain, and reducing phlegm according to Traditional Chinese Medicine (TCM) theory for thousands of years. AIM OF THE STUDY This article reviews the ethnopharmacology, phytochemistry, pharmacology, toxicology and metabolic kinetics related research of genus Asarum to evaluate its ethnopharmacology use and future opportunities for research. MATERIALS AND METHODS Information on relevant studies of the genus Asarum was gathered via the Internet using Baidu Scholar, Web of Science, Elsevier, ResearchGate, ACS, Pudmed and Chinese National Knowledge Infrastructure (CNKI). Additionally, information was also obtained from some local books, PhD, MS's dissertations and Pharmacopeias. RESULTS The genus Asarum has played an important role in herbal treatment. At present, more than 277 compounds have been isolated or identified from genus Asarum. Among them, volatile oil and lignans are the major active constituents and important chemotaxonomic markers. Modern pharmacological studies indicated that genus Asarum and its active compounds possess a wide range of pharmacological effects, especially analgesic, anti-inflammatory, neuroprotective, cardiovascular protection, antitussive, immunosuppressive, anti-tumor, and microbicidal activities. CONCLUSIONS Based on this review, therapeutic potential of genus Asarum has been demonstrated with the pharmacological effects on inflammation, CNS, respiratory regulation, cardiovascular diseases, cancer and microbial infection. The available literature showed that the major activities of the genus Asarum can be attributed to the active lignans and essential oils. Further in-depth studies on the aspects of the genus for mechanism of actions, metabolism, pharmacokinetics, toxicology, drug interactions, and clinical trials are still limited, thereby intensive research and assessments should be performed.
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Affiliation(s)
- Hanze Liu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, Shanghai R&D Centre for Standardization of Chinese Medicines, 1200 Cailun Road, Shanghai, 201203, China
| | - Changhong Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai Key Laboratory of Compound Chinese Medicines, Shanghai R&D Centre for Standardization of Chinese Medicines, 1200 Cailun Road, Shanghai, 201203, China.
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Study on Gas Chromatographic Fingerprint of Essential Oil from Stellera chamaejasme Flowers and Its Repellent Activities against Three Stored Product Insects. Molecules 2021; 26:molecules26216438. [PMID: 34770847 PMCID: PMC8587308 DOI: 10.3390/molecules26216438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/17/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022] Open
Abstract
The objective of this study was to establish the chromatographic fingerprints of the essential oil (EO) from Stellera chamaejasme flowers collected from various natural sites by gas chromatography (GC) combined with chemometric methods. The EO was obtained by hydrodistillation, and its chemical composition was analyzed by gas chromatography-mass spectrometry (GC-MS). Most components were identified as ketones and the relatively high-content components were fitone (38.973%), n-hentriacontane (5.807%), myristic acid (4.944%) and phytol (3.988%). In addition, the repellent activities of the EO from S. chamaejasme flowers and its four main chemical compounds were evaluated against three stored product pests (Tribolium castaneum, Lasioderma serricorne, Liposcelis bostrychophila) for the first time. In this work, the EO and the four chemical compounds showed a repellent effect against three storage pests after 2 and 4 h exposure. The experimental method and repellent activity of S. chamaejasme flower EO could provide a basis for the development of botanical pesticide and the utilization of the rich plant resources of S. chamaejasme in the future.
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Wu M, Xiong Y, Han R, Dong W, Xiao C. Fumigant Toxicity and Oviposition Deterrent Activity of Volatile Constituents from Asari Radix et Rhizoma against Phthorimaea operculella (Lepidoptera: Gelechiidae). JOURNAL OF INSECT SCIENCE (ONLINE) 2020; 20:6030938. [PMID: 33306098 PMCID: PMC7731873 DOI: 10.1093/jisesa/ieaa133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Indexed: 06/08/2023]
Abstract
Phthorimaea operculella (Zeller) is a worldwide pest of potato. Plant-borne chemicals would be potential alternatives of synthetic chemical fumigants against P. operculella in the storage. Asari Radix et Rhizoma is derived from the dry roots and rhizomes of Asarum heterotropoides Fr. Schmidt var. mandshuricum, A. sieboldii Miq. var. seoulense, or A. sieboldii. In this study, fumigant toxicity and oviposition deterrent of volatile constituents from ARR, δ-3-carene, γ-terpinene, terpinolene, eucarvone, 3,5-dimethoxytoluene, and methyleugenol were tested against P. operculella. The preliminary verification of preventive and control effects of eucarvone, 3,5-dimethoxytoluene and methyleugenol on P. operculella was carried out by simulating warehouse experiments. The results indicated that the six compounds above had fumigation toxic effects on the adults and eggs of P. operculella. Among them, δ-3-carene, γ-terpinene, and terpinolene had weaker fumigation effects than those of eucarvone, 3,5-dimethoxytoluene, and methyleugenol. The LC50 values of eucarvone, 3,5-dimethoxytoluene, and methyleugenol against adult P. operculella were 1.01, 1.78, 1.51 mg/liter air, respectively. The LC50 values against egg P. operculella were 1.09, 0.55, 0.30 mg/liter air, respectively. The oviposition deterrent experiment showed that only methyleugenol (at 5 and 1 mg/ml) and eucarvone (5 mg/ml) had a substantial oviposition deterrent effect. The simulated warehouse experiment verified that methyleugenol, eucarvone, and 3,5-dimethoxytoluene protected potatoes from P. operculella and demonstrated that methyleugenol had the best preventive and control effects. It was concluded that methyleugenol was the active ingredient with the most potential in the volatiles from ARR on P. operculella control and merit further study as botanic fumigant.
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Affiliation(s)
- Mei Wu
- Plant Protection College, Yunnan Agricultural University, Kunming, China
- School of Chinese Material Medica, Yunnan University of Chinese Medicine, Kunming, China
| | - Yan Xiong
- Plant Protection College, Yunnan Agricultural University, Kunming, China
| | - Rui Han
- Plant Protection College, Yunnan Agricultural University, Kunming, China
| | - Wenxia Dong
- Plant Protection College, Yunnan Agricultural University, Kunming, China
| | - Chun Xiao
- Plant Protection College, Yunnan Agricultural University, Kunming, China
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Tak JH, Coquerel QRR, Tsikolia M, Bernier UR, Linthicum K, Bloomquist JR. Screening for Enhancement of Permethrin Toxicity by Plant Essential Oils Against Adult Females of the Yellow Fever Mosquito (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:1149-1156. [PMID: 32020196 DOI: 10.1093/jme/tjaa014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 06/10/2023]
Abstract
Aedes aegypti L. (Diptera: Culicidae) is one of the most medically important mosquito species, due to its ability to spread viruses of yellow fever, dengue fever, and Zika in humans. In this study, the insecticidal activity of 17 plant essential oils was evaluated via topical application against two strains of Ae. aegypti mosquito, Orlando (insecticide-susceptible) and Puerto Rico (pyrethroid-resistant). Initial screens with the Orlando strain showed that cucumber seed oil (2017 sample) was the most toxic, followed by sandalwood and thyme oil. When the essential oils were mixed with permethrin, they failed to show any significant synergism of insecticidal activity. Sandalwood and thyme oils displayed consistently high mortality against the resistant Puerto Rico strain, with low resistance ratios of 2.1 and 1.4, respectively. In contrast, cucumber seed oil showed significantly less activity against Puerto Rico mosquitoes, with a resistance ratio of 45. Bioactivity-guided fractionation of the 2017 sample of cucumber seed oil sample via flash column chromatography produced 11 fractions, and gas-chromatography/mass spectrometry analysis revealed that the three active fractions were contaminated with 0.33, 0.36, and 0.33% of chlorpyrifos-methyl, an organophosphorus insecticide, whereas inactive fractions did not show any trace of it. These results suggested that the insecticidal activity of cucumber seed oil was probably due to the presence of the insecticide, later confirmed with a clean batch of cucumber seed oil obtained in 2018, which showed negligible insecticidal activity. These findings demonstrate clearly the need for essential oil analysis to confirm purity before any claims are made about pesticidal potency.
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Affiliation(s)
- Jun-Hyung Tak
- Department of Agricultural Biotechnology, College of Agriculture & Life Sciences, Seoul National University, Seoul, South Korea
- Research Institute for Agriculture and Life Sciences, College of Agriculture & Life Sciences, Seoul National University, Seoul, South Korea
| | | | - Maia Tsikolia
- Emerging Pathogens Institute, Department of Entomology and Nematology, University of Florida, Gainesville, FL
| | - Ulrich R Bernier
- USDA, ARS, Center for Medical, Agricultural and Veterinary Entomology, Gainesville, FL
| | - Kenneth Linthicum
- USDA, ARS, Center for Medical, Agricultural and Veterinary Entomology, Gainesville, FL
| | - Jeffrey R Bloomquist
- Emerging Pathogens Institute, Department of Entomology and Nematology, University of Florida, Gainesville, FL
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Raju P, Arivalagan P, Natarajan S. One-pot fabrication of multifunctional catechin@ZIF-L nanocomposite: Assessment of antibiofilm, larvicidal and photocatalytic activities. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 203:111774. [PMID: 31931386 DOI: 10.1016/j.jphotobiol.2019.111774] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/18/2019] [Accepted: 12/31/2019] [Indexed: 10/25/2022]
Abstract
Zeolitic imidazole framework (ZIF) is an emerging class of metal organic frameworks exhibiting unique features such as crystalline nature with tunable pore size, large surface area and biocompatible nature. Exceptional thermal and chemical stabilities of ZIF-L make it a suitable candidate for biomedical applications. The present study has focused on the single step fabrication of catechin encapsulated ZIF-L and evaluation of its antibiofilm efficiency, larvicidal activity and dye degradation ability. The as- prepared CA@ZIF-L nanocomposite was characterized by spectroscopic and microscopic techniques. The results revealed that the CA@ZIF-L showed significant toxicity against mosquito larvae in a dose dependent manner with the IC50 63.43±1.25 μg/mL. CA@ZIF-L showed dose dependent reduction of biofilm formation in both ATCC and clinical MRSA strains. In addition, CA@ZIF-L exhibited excellent photocatalytic activity with around 92% degradation of methylene blue under direct sunlight. Overall, the present work highlights the possibility of employing the multifunctional CA@ZIF-L nanocomposite as a suitable material for biomedical and photocatalytic applications.
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Affiliation(s)
- Prabhu Raju
- Department of Nanoscience and Technology, Alagappa University, Karaikudi, Tamil Nadu, India
| | - Pugazhendhi Arivalagan
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| | - Suganthy Natarajan
- Department of Nanoscience and Technology, Alagappa University, Karaikudi, Tamil Nadu, India.
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Sarma R, Adhikari K, Mahanta S, Khanikor B. Combinations of Plant Essential Oil Based Terpene Compounds as Larvicidal and Adulticidal Agent against Aedes aegypti (Diptera: Culicidae). Sci Rep 2019; 9:9471. [PMID: 31263222 PMCID: PMC6602964 DOI: 10.1038/s41598-019-45908-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 06/14/2019] [Indexed: 11/29/2022] Open
Abstract
Insecticidal plant-based compound(s)in combinations may show synergistic or antagonistic interactions against insect pest. Considering the rapid spread of the Aedes borne diseases and increasing resistance among Aedes population against conventional insecticides, twenty-eight combinations of plant essential oil-based terpene compounds were prepared and tested against larval and adult stages ofAedes aegypti. Initially five plant essential oils (EOs) were assessed for their larvicidal and adulticidal efficacy and two of their major compounds from each EO were identified from GC-MS results. Identified major compounds namely Diallyldisulfide, Diallyltrisulfide, Carvone, Limonene, Eugenol, Methyl Eugenol, Eucalyptol, Eudesmol and α-pinene were purchased and tested individually against A. aegypti. Binary combinations of these compounds were then prepared using sub-lethal doses, tested and their synergistic and antagonistic effects were determined. The best larvicidal compositions were obtained while Limonene was mixed with Diallyldisulfide and the best adulticidal composition was obtained while Carvone was mixed with Limonene. Commercially used synthetic larvicide "Temephos" and adulticide "Malathion" were tested individually and in binary combinations with the terpene compounds. The results revealed that the combination of Temephos and Diallyldisulfide and combination of Malathion and Eudesmol were the most effective combination. These effective combinations bear potential prospect to be used against Aedes aegypti.
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Affiliation(s)
- Riju Sarma
- Research Scholar, Department of Zoology, Gauhati University, Guwahati, Assam, India
| | - Kamal Adhikari
- Research Scholar, Department of Zoology, Gauhati University, Guwahati, Assam, India
| | - Sudarshana Mahanta
- Research Scholar, Department of Zoology, Gauhati University, Guwahati, Assam, India
| | - Bulbuli Khanikor
- Assistant Professor, Department of Zoology, Gauhati University, Guwahati, Assam, India.
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Ragavendran C, Manigandan V, Kamaraj C, Balasubramani G, Prakash JS, Perumal P, Natarajan D. Larvicidal, Histopathological, Antibacterial Activity of Indigenous Fungus Penicillium sp. Against Aedes aegypti L and Culex quinquefasciatus (Say) (Diptera: Culicidae) and Its Acetylcholinesterase Inhibition and Toxicity Assessment of Zebrafish ( Danio rerio). Front Microbiol 2019; 10:427. [PMID: 30936853 PMCID: PMC6431641 DOI: 10.3389/fmicb.2019.00427] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 02/19/2019] [Indexed: 11/17/2022] Open
Abstract
Fungal metabolites are considered to be most efficient tools to overcome the issues related to insecticide resistance and environmental pollution. The present study focus on the evaluation of the mosquito larvicidal efficacy of metabolites of seven indigenous fungal isolates (Penicillium sp. Aspergillus niger, A. flavus, A. parasiticus, Rhizopus sp. Mucor sp. and Aspergillus sp.) on the larvae of Aedes aegypti and Culex quinquefasciatus under the laboratory condition. The preliminary screening of the isolate, Penicillium sp. showed better larvicidal effect when compared to other fungi. The fungus was grown on Potato Dextrose Broth (PDB) in the laboratory (at 25°C) and maintained in the relative humidity (at 76 ± 4% for 15 days). Larvicidal potency of mycelial ethyl acetate extract (MEAE) of Penicillium sp. was performed against 1st to 4th instars larvae of Ae. aegypti and Cx. quinquefasciatus using four different concentrations (100, 200, 300, and 500 μg/ml) that showed better larval mortality values (μg/ml) of LC50 = 6.554, 5.487, 6.874, 6.892, and the LC90 = 11.486, 10.366, 12.879, 13.865 for Ae. aegypti and LC50 = 7.000, 13.943, 18.129, 25.212 and the LC90 = 12.541, 23.761, 30.923, 41.696 for Cx. quinquefasciatus. Exposure of metabolite to larvae resulted in behavior changes i.e., excitation, up and down with aggressive movement, anal papillae biting behavior. Further, the larvae treated with Penicillium sp. metabolite exhibited significant reduction in the levels of acetylcholinesterase. The 4th instar mosquito larvae treated with the 500 μg/ml mycelia extract showed severe histological damages. During the antibacterial analysis of Penicillium sp.- mycelium the maximum growth inhibition zone was recorded in Shigella dysenteriae (31.2 mm) and Klebsiella pneumoniae (31.1 mm) followed by others. In addition, to check the toxicity of Penicillium sp. MEAE against embryos of Zebrafish, a model system, using different concentrations of metabolites (1.0, 0.5, 0.125 mg/ml, 30, 3.0, and 0.5 μg/ml) and life-stage parameters were observed at 124 hpf. Furthermore, the Fourier Transformed Infrared and GCMS spectrum analysis of mycelium reflected several chemical compounds. The outcome of the study clearly shows that Penicillium sp. metabolites could serve as an ideal eco-friendly, single-step and inexpensive source for the control of Ae. aegypti and Cx. quinquefasciatus larvae.
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Affiliation(s)
- Chinnasamy Ragavendran
- Natural Drug Research Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
| | - Venkatesan Manigandan
- Biomedical Zebrafish Laboratory, Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education, Chennai, India
| | - Chinnaperumal Kamaraj
- Marine Biotechnology and Ecological Genomics Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
| | - Govindasamy Balasubramani
- Marine Biotechnology and Ecological Genomics Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
| | - Joy Sebastian Prakash
- Biomedical Zebrafish Laboratory, Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education, Chennai, India
| | - Pachiappan Perumal
- Marine Biotechnology and Ecological Genomics Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
| | - Devarajan Natarajan
- Natural Drug Research Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
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Yuan L, Yang X, Yu X, Wu Y, Jiang D. Resistance to insecticides and synergistic and antagonistic effects of essential oils on dimefluthrin toxicity in a field population of Culex quinquefasciatus Say. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:928-936. [PMID: 30597793 DOI: 10.1016/j.ecoenv.2018.11.115] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 11/23/2018] [Accepted: 11/25/2018] [Indexed: 06/09/2023]
Abstract
In this work, we firstly tested five spatial repellent pyrethroids, meperfluthrin, dimefluthrin, heptafluthrin, metofluthrin and transfluthrin, to determine the susceptibility of pyrethroids to field strains of Culex quinquefasciatus using adult topical bioassay. The results showed that though field strains exhibited the highest resistance to dimefluthrin among the selected five pyrethroids, it still can be considered low resistance in the scale of Cui et al. (2006; 2007). Then, the aim of this study was to optimise the synergistic efficacy of essential oils combined with dimefluthrin and explore the major contribution composition of eucalyptus oil, basil oil and cinnamon oil as natural synergist of dimefluthrin against the field populations of C. quinquefasciatus. GC-MS analysis showed 1,8-cineole, eugenol and trans-cinnamaldehyde were the main chemical components of eucalyptus oil, basil oil and cinnamon oil, respectively. The results of bioactivity showed that eucalyptus oil and 1,8-cineole have highly fumigant knock-down activity to the adults, showing KT50 (the median knockdown time) of 5.76 and 4.27 min at the concentration of 24.2 µL/L; basil oil and eugenol, cinnamon oil and trans-cinnamaldehyde have highly fumigant toxicity to the adults, showing LD50 of 1.00 and 0.79, 1.26 and 1.03 µL/L, respectively. Three effective main essential oil components were selected to prepare binary mixtures, which combined with dimefluthrin against the field population of Culex quinquefasciatus. 1,8-cineole+eugenol (9:1, w/w), 1,8-cineole+trans-cinnamaldehyde (1:1, w/w) and trans-cinnamaldehyde+eugenol (9:1, w/w) combined with dimefluthrin (10:1, w/w) were the most synergistic interaction, showed SR (synergistic ratio) values of 1.2471, 1.5709 and 1.1969; KT50 of 11.68, 9.51 and 10.67 min respectively, by quadrate box method. In addition, to validate the stable synergistic interaction of 1,8-cineole+trans-cinnamaldehyde (1:1, w/w) combined with dimefluthrin (10:1, w/w), the SR values were about 1.3, and KT50 values were 38.72-50.26 min by simulated house method. Overall, our results pointed out the promising potential of these essential oils to increase the efficacy of dimefluthrin. It might be expected that these essential oils could be developed to a useful botanical synergist of dimefluthrin for the control of the field populations of C. quinquefasciatus.
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Affiliation(s)
- Liang Yuan
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, Laboratory of Insect Toxicology, South China Agricultural University, Guangzhou 510642, PR China
| | - Xiaodong Yang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, Laboratory of Insect Toxicology, South China Agricultural University, Guangzhou 510642, PR China
| | - Xihui Yu
- Zhongshan Lanju Daily Chemical Industrial Co., Ltd., Zhongshan 528400, Guangdong, PR China
| | - Yinghua Wu
- Zhongshan Lanju Daily Chemical Industrial Co., Ltd., Zhongshan 528400, Guangdong, PR China
| | - Dingxin Jiang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, Laboratory of Insect Toxicology, South China Agricultural University, Guangzhou 510642, PR China.
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17
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Wang Z, Perumalsamy H, Wang X, Ahn YJ. Toxicity and possible mechanisms of action of honokiol from Magnolia denudata seeds against four mosquito species. Sci Rep 2019; 9:411. [PMID: 30674912 PMCID: PMC6344527 DOI: 10.1038/s41598-018-36558-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 11/22/2018] [Indexed: 12/18/2022] Open
Abstract
This study was performed to determine the toxicity and possible mechanism of the larvicidal action of honokiol, extracted from Magnolia denudata seeds, and its 10 related compounds against third-instar larvae of insecticide-susceptible Culex pipiens pallens, Aedes aegypti, and Aedes albopictus and Anopheles sinensis resistant to deltamethrin and temephos. Honokiol (LC50, 6.13–7.37 mg/L) was highly effective against larvae of all of the four mosquito species, although the toxicity of the compound was lower than that of the synthetic larvicide temephos. Structure–activity relationship analyses indicated that electron donor and/or bulky groups at the ortho or para positions of the phenol were required for toxicity. Honokiol moderately inhibited acetylcholinesterase and caused a considerable increase in cyclic AMP levels, indicating that it might act on both acetylcholinesterase and octopaminergic receptors. Microscopy analysis clearly indicated that honokiol was mainly targeted to the midgut epithelium and anal gills, resulting in variably dramatic degenerative responses of the midgut through sequential epithelial disorganization. Honokiol did not affect the AeCS1 mRNA expression level in Ae. aegypti larvae, but did enhance expression of the genes encoding vacuolar-type H+-ATPase and aquaporin 4, indicating that it may disturb the Na+, Cl− and K+ co-transport systems. These results demonstrate that honokiol merits further study as a potential larvicide, with a specific target site, and as a lead molecule for the control of mosquito populations.
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Affiliation(s)
- Zhangqian Wang
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea.,Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences, Wuhan, 430071, Hubei, China
| | - Haribalan Perumalsamy
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Xue Wang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Young-Joon Ahn
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea. .,Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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18
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Suzuki T, Yamato S. Mode of action of piperovatine, an insecticidal piperamide isolated from Piper piscatorum (Piperaceae), against voltage-gated sodium channels. Neurotoxicology 2018; 69:288-295. [DOI: 10.1016/j.neuro.2018.07.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 07/23/2018] [Accepted: 07/30/2018] [Indexed: 10/28/2022]
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Ragavendran C, Srinivasan R, Kim M, Natarajan D. Aspergillus terreus (Trichocomaceae): A Natural, Eco-Friendly Mycoinsecticide for Control of Malaria, Filariasis, Dengue Vectors and Its Toxicity Assessment Against an Aquatic Model Organism Artemia nauplii. Front Pharmacol 2018; 9:1355. [PMID: 30534070 PMCID: PMC6275207 DOI: 10.3389/fphar.2018.01355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 11/05/2018] [Indexed: 01/22/2023] Open
Abstract
Vector-borne diseases like malaria, filariasis, and dengue are transmitted by mosquitoes and they cause global mortality and morbidity due to an increased resistance against commercial insecticides. The present study was aimed to evaluate the neurobehavioral toxicity, knock-down effect, histopathology, ovicidal, adulticidal, and smoke toxicity effect of Aspergillus terreus extract against three mosquito species, namely Anopheles stephensi, Culex quinquefasciatus, and Aedes aegypti (Diptera: Culicidae). The isolated fungal strain was identified as A. terreus (GenBank accession no: KX694148.1) through morphological and molecular (phylogenetic) analysis. The morphological changes in the treated fourth instar larvae shown the demelanization of cuticle and shrinkage of the internal cuticle of anal papillae. The time duration of extract exposure against the larvae determines the level of toxicity. The extract treated larvae were displayed excitation, violent vertical and horizontal movements with aggressive anal biting behavior as the toxic effect on the neuromuscular system. The results of the biochemical analysis indicated that a decrease in the level of acetylcholinesterase, α-carboxylesterase, and β-carboxylesterase in extract treated fourth instar larvae of all tested mosquito species. The findings of histopathological investigation shown the disorganization of the abdominal region, mainly in mid, hindgut, and gastric caeca, loss of antenna, lateral hair, caudal hair, upper and lower head hairs in the mycelium extract treated An. stephensi, Cx. quinquefasciatus, and Ae. aegypti. The ovicidal bioassay test results showed the mosquito hatchability percentage was directly related to the concentrations of mycelium extract. Nil hatchability of mosquito eggs was noticed at 500 μg/ml concentration. The adulticidal activity of fungal mycelia ethyl acetate extract resulted in a dose-dependent activity (15 and 30 min recovery periods). The higher concentration of extract (1000 mg/L) acted as a repellent, the adult mosquitoes showed restless movement, uncontrolled/anesthetic flight at last died. The better adulticidal activity was observed in the ethyl acetate extract against An. stephensi, Cx. quinquefasciatus followed by Ae. aegypti with the best score of LD50 and LD90 values and nil mortality was found in the control. The results of smoke toxicity assay of the mycelia extract exhibited significant mortality rate against Ae. aegypti (91%), Cx. quinquefasciatus (89%), and An. stephensi (84%). In addition, the present investigation reported the stability and toxic effects of A. terreus mycelium ethyl acetate extract on Artemia nauplii. The swimming speed (0.88 mm s-1) of A. terreus was reduced with ethyl extract 24 h treatment whereas, the control A. nauplii showed the normal speed of 2.96 mm s-1. Altered behavior and swimming movement were observed in the 8 h A. terreus mycelium extract treated A. nauplii. A pale yellow color substance (metabolites) was found in the mid-gut region of the mycelial extract exposed A. nauplii. The outcome of the present study, suggest that the A. terreus metabolites might serve as an alternative, cost-effective, eco-friendly, and target specific mosquitocidal agent in the future.
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Affiliation(s)
- C. Ragavendran
- Natural Drug Research Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
| | - R. Srinivasan
- Department of Food Science and Technology, College of Life and Applied Sciences, Yeungnam University, Gyeongsan, South Korea
| | - Myunghee Kim
- Department of Food Science and Technology, College of Life and Applied Sciences, Yeungnam University, Gyeongsan, South Korea
| | - Devarajan Natarajan
- Natural Drug Research Laboratory, Department of Biotechnology, School of Biosciences, Periyar University, Salem, India
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Wang X, Xu F, Zhang H, Peng L, Zhen Y, Wang L, Xu Y, He D, Li X. Orthogonal test design for optimization of the extraction of essential oil from Asarum heterotropoides var. Mandshuricum and evaluation of its antibacterial activity against periodontal pathogens. 3 Biotech 2018; 8:473. [PMID: 30456007 DOI: 10.1007/s13205-018-1494-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 10/29/2018] [Indexed: 01/04/2023] Open
Abstract
The optimum extraction conditions of essential oil from Asarum heterotropoides var. Mandshuricum applied by an orthogonal L9(33) test were a water-to-raw material ratio of 17, a particle size of D 95 ≤ 3.8 mm and an extraction time of 2 h. In ingredient analysis, gas chromatography/mass spectrometry analysis identified the main components of essential oil as methyl eugenol (45.95%), safrole (17.48%) and 3,5-dimethoxytoluene (10.30%) orderly. In vitro, the minimum inhibitory concentration and minimum bactericidal concentration of essential oil were 0.01 and 0.02% against F. nucleatum, 0.04 and 0.08% against P. intermedia, and 0.005 and 0.005% against P. gingivalis. In vivo, administration of essential oil significantly suppressed alveolar bone resorption induced by F. nucleatum, with bone levels remaining comparable to non-infected mice. These results of antibacterial activity of essential oil in vitro and in vivo show the inhibition of periodontal pathogens and therapy of alveolar bone resorption in mice, suggesting that its essential oil could be a potential natural therapeutic agent for treatment of periodontitis in human beings.
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Affiliation(s)
- Xiaoli Wang
- 1Department of Environment and Safety Engineering, Taiyuan Institute of Technology, Taiyuan, 030008 People's Republic of China
| | - Fanxing Xu
- 2School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024 People's Republic of China
| | - Henghui Zhang
- 1Department of Environment and Safety Engineering, Taiyuan Institute of Technology, Taiyuan, 030008 People's Republic of China
| | - Liang Peng
- 2School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024 People's Republic of China
- Ministry of Education Center for Food Safety of Animal Origin, Dalian, 116620 People's Republic of China
| | - Yuhong Zhen
- 4Department of Pharmacy, Dalian Medical University, Dalian, 116044 China
| | - Lili Wang
- 2School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024 People's Republic of China
- Ministry of Education Center for Food Safety of Animal Origin, Dalian, 116620 People's Republic of China
| | - Yongping Xu
- 2School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024 People's Republic of China
- Ministry of Education Center for Food Safety of Animal Origin, Dalian, 116620 People's Republic of China
| | - Dongye He
- 5Department of Central Laboratory, Affiliated Hospital of Jining Medical University, 89 Guhuai Road, Jining, 272029 People's Republic of China
| | - Xiaoyu Li
- 2School of Life Science and Biotechnology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024 People's Republic of China
- Ministry of Education Center for Food Safety of Animal Origin, Dalian, 116620 People's Republic of China
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Kim JR, Perumalsamy H, Shin HM, Lee SG, Ahn YJ. Toxicity of Juniperus oxycedrus oil constituents and related compounds and the efficacy of oil spray formulations to Dermatophagoides farinae (Acari: Pyroglyphidae). EXPERIMENTAL & APPLIED ACAROLOGY 2017; 73:385-399. [PMID: 29181675 DOI: 10.1007/s10493-017-0201-3] [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: 10/11/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
The American house dust mite (AHDM), Dermatophagoides farinae Hughes (Acari: Pyroglyphidae), is recognized as an important source of allergens in the domestic environment. This study was conducted to determine whether 19 constituents from essential oil of cade, Juniperus oxycedrus L. (Cupressaceae), eight structurally related compounds, and another 16 previously known cade oil constituents were toxic for adult AHDMs and to determine the route of acaricidal action of the test compounds, as well as to assess the control efficacy of four experimental spray formulations containing the oil (10-40 mg/L sprays). In a fabric-circle contact mortality bioassay, methyleugenol (LD50, 5.82 µg/cm2) and guaiacol (8.24 µg/cm2) were the most toxic compounds against the mites, and the toxicity of these compounds and benzyl benzoate did not significantly differ. High toxicity was also observed with eugenol, m-cresol, and nerolidol (LD50, 12.52-19.52 µg/cm2), and these compounds were significantly more toxic than N,N-diethyl-3-methylbenzamide (DEET) (LD50, 37.67 µg/cm2). Cade applied as 30 or 40 mg/L experimental sprays provided 96 and 100% mortality against the mites, respectively, whereas permethrin (cis:trans, 25:75) 2.5 g/L spray treatment resulted in 17% mortality. In vapor-phase mortality tests, the compounds described were consistently more toxic in closed versus open containers, indicating that toxicity was achieved mainly through the action of vapor. Reasonable mite control in indoor environments can be achieved by spray formulation containing the 40 mg/L cade oil as potential contact-action fumigants.
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Affiliation(s)
- Jun-Ran Kim
- Experiment and Analysis Division, Animal and Plant Quarantine Agency, Honam Regional Office, Gunsan-si, Jeollabuk-do, 54096, Republic of Korea
| | - Haribalan Perumalsamy
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - He Min Shin
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang-Guei Lee
- Crop Protection Division, Department of Crop Life Safety, National Academy of Agricultural Science, Rural Development Administration, Jeonju, 55365, Republic of Korea
| | - Young-Joon Ahn
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea.
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Dang K, Doggett SL, Veera Singham G, Lee CY. Insecticide resistance and resistance mechanisms in bed bugs, Cimex spp. (Hemiptera: Cimicidae). Parasit Vectors 2017; 10:318. [PMID: 28662724 PMCID: PMC5492349 DOI: 10.1186/s13071-017-2232-3] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 06/06/2017] [Indexed: 11/16/2022] Open
Abstract
The worldwide resurgence of bed bugs [both Cimex lectularius L. and Cimex hemipterus (F.)] over the past two decades is believed in large part to be due to the development of insecticide resistance. The transcriptomic and genomic studies since 2010, as well as morphological, biochemical and behavioral studies, have helped insecticide resistance research on bed bugs. Multiple resistance mechanisms, including penetration resistance through thickening or remodelling of the cuticle, metabolic resistance by increased activities of detoxification enzymes (e.g. cytochrome P450 monooxygenases and esterases), and knockdown resistance by kdr mutations, have been experimentally identified as conferring insecticide resistance in bed bugs. Other candidate resistance mechanisms, including behavioral resistance, some types of physiological resistance (e.g. increasing activities of esterases by point mutations, glutathione S-transferase, target site insensitivity including altered AChEs, GABA receptor insensitivity and altered nAChRs), symbiont-mediated resistance and other potential, yet undiscovered mechanisms may exist. This article reviews recent studies of resistance mechanisms and the genes governing insecticide resistance, potential candidate resistance mechanisms, and methods of monitoring insecticide resistance in bed bugs. This article provides an insight into the knowledge essential for the development of both insecticide resistance management (IRM) and integrated pest management (IPM) strategies for successful bed bug management.
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Affiliation(s)
- Kai Dang
- Urban Entomology Laboratory, Vector Control Research Unit, School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Stephen L. Doggett
- Department of Medical Entomology, NSW Health Pathology, Westmead Hospital, Westmead, NSW 2145 Australia
| | - G. Veera Singham
- Centre for Chemical Biology, Universiti Sains Malaysia, 10 Persiaran Bukit Jambul, 11900 Penang, Malaysia
| | - Chow-Yang Lee
- Urban Entomology Laboratory, Vector Control Research Unit, School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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Kim SI, Ahn YJ. Larvicidal activity of lignans and alkaloid identified in Zanthoxylum piperitum bark toward insecticide-susceptible and wild Culex pipiens pallens and Aedes aegypti. Parasit Vectors 2017; 10:221. [PMID: 28472971 PMCID: PMC5418860 DOI: 10.1186/s13071-017-2154-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 04/22/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The yellow fever mosquito, Aedes aegypti, and the common house mosquito, Culex pipiens pallens, transmit dengue fever and West Nile virus diseases, respectively. This study was conducted to determine the toxicity of the three lignans (-)-asarinin, sesamin and (+)-xanthoxylol-γ,γ-dimethylallylether (XDA), and the alkaloid pellitorine from Zanthoxylum piperitum (Rutaceae) bark to third-instar larvae from insecticide-susceptible C. pipiens pallens and Ae. aegypti as well as wild C. pipiens pallens resistant to deltamethrin, cyfluthrin, fenthion, and temephos. METHODS The toxicities of all isolates were compared with those of mosquito larvicide temephos. LC50 values for each species and their treatments were significantly different from one another when their 95% confidence intervals did not overlap. RESULTS XDA was isolated from Z. piperitum as a new larvicidal principle. XDA (LC50, 0.27 and 0.24 mg/l) was 4, 53, and 144 times and 4, 100, and 117 times more toxic than pellitorine, sesamin, and asarinin toward larvae from susceptible C. pipiens pallens and Ae. aegypti, respectively. Overall, all the isolates were less toxic than temephos (LC50, 0.006 and 0.009 mg/l). These constituents did not differ in toxicity to larvae from the two Culex strains. The present finding indicates that the lignans and alkaloid and the insecticides do not share a common mode of larvicidal action or elicit cross-resistance. CONCLUSION Naturally occurring Z. piperitum bark-derived compounds, particularly XDA, merit further study as potential mosquito larval control agents or as lead compounds for the control of insecticide-resistant mosquito populations.
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Affiliation(s)
- Soon-Il Kim
- NARESO R&D Center, Seoul National University Business Incubator, Suwon, 16614 South Korea
| | - Young-Joon Ahn
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826 South Korea
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Essential oils and their components as an alternative in the control of mosquito vectors of disease. BIOMEDICA 2017; 37:224-243. [PMID: 29161495 DOI: 10.7705/biomedica.v37i0.3475] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 03/27/2017] [Indexed: 11/21/2022]
Abstract
More than half of the human population is exposed to mosquito-borne infections. Climate change and the emergence of strains resistant to traditionally used insecticides have motivated the search of new agents for mosquito population control. Essential oils have been effective repellents and larvicidal agents.The aim of this work was to review research studies conducted in recent years on the larvicidal activity of essential oils and their components against Aedes, Anopheles and Culex mosquitoes, as well as the latest reports about their possible mechanism of action.
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Fouad H, Hongjie L, Yanmei D, Baoting Y, El-Shakh A, Abbas G, Jianchu M. Synthesis and characterization of silver nanoparticles using Bacillus amyloliquefaciens and Bacillus subtilis to control filarial vector Culex pipiens pallens and its antimicrobial activity. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:1369-1378. [PMID: 27855517 DOI: 10.1080/21691401.2016.1241793] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Culex pipiens pallens are the most common mosquito's vector in Asia. In order to protect the people from diseases, the anti-mosquito population is necessary that uses safe and new bio-pesticides such as bacteria-AgNPs. In our report, we used two kinds of bacteria to synthesize silver nanoparticles to examine the toxic effect on the larvae and pupae of Cx. pipiens pallens and also used as antimicrobial activity. The biosynthesis of AgNPs and its characterization was carried out by UV-Vis spectrophotometry, FTIR, TEM, SEM, and EDX. The larvicidal and pupicidal assays revealed that the lethal concentration LC50 values of Bacillus amyloliquefaciens-AgNPs were 0.72 ppm (I), 0.73 ppm (II), 0.69 ppm (III), 1.16 ppm (IV), and 4.18 (Pupae), while LC50 values of Bacillus subtilis-AgNPs were 0.60 ppm (I), 0.62 ppm (II), 0.21 ppm (III), 0.28 ppm (IV), and 3.46 ppm (Pupae) after 72 h of exposure. Antibacterial activity test of AgNPs reveals better results against rice pathogenic bacteria than bacteria alone. Thus, bacteria-mediated silver nanoparticles have a rapid effect on vector mosquito and microbial pathogen suggesting savings of energy and resources. Hence, bacteria-AgNPs may be used in the future as an effective weapon to control vector mosquito and harmful bacteria.
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Affiliation(s)
- Hatem Fouad
- a Ministry of Agriculture Key Laboratory of Agricultural Entomology , Institute of Insect Sciences, Zhejiang University , Zhejiang , PR China.,b Department of Field Crop Pests , Plant Protection Research Institute, Agricultural Research Centre , Cairo , Egypt
| | - Li Hongjie
- a Ministry of Agriculture Key Laboratory of Agricultural Entomology , Institute of Insect Sciences, Zhejiang University , Zhejiang , PR China
| | - Ding Yanmei
- a Ministry of Agriculture Key Laboratory of Agricultural Entomology , Institute of Insect Sciences, Zhejiang University , Zhejiang , PR China
| | - Yu Baoting
- a Ministry of Agriculture Key Laboratory of Agricultural Entomology , Institute of Insect Sciences, Zhejiang University , Zhejiang , PR China
| | - Ahmed El-Shakh
- c Department of Crop Protection , University of Bakht Alruda , Ad Douiem , White Nile State , Sudan
| | - Ghulam Abbas
- d Department of Chemical Engineering , University of Gujrat , Gujrat , Pakistan
| | - Mo Jianchu
- a Ministry of Agriculture Key Laboratory of Agricultural Entomology , Institute of Insect Sciences, Zhejiang University , Zhejiang , PR China
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Haque AT, Moon JN, Saravana P, Tilahun A, Chun BS. Composition of Asarum heterotropoides var. mandshuricum radix oil from different extraction methods and activities against human body odor-producing bacteria. J Food Drug Anal 2016; 24:813-821. [PMID: 28911620 PMCID: PMC9337282 DOI: 10.1016/j.jfda.2016.04.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 03/30/2016] [Accepted: 05/17/2016] [Indexed: 12/02/2022] Open
Abstract
In this study, oils from Asarum heterotropoides were extracted by traditional solvent extraction and supercritical CO2 (SC-CO2) extraction methods and their antioxidant activities along with antimicrobial and inhibitory activities against five human body odor-producing bacteria (Staphylococcus epidermidis, Propionibacterium freudenreichii, Micrococcus luteus, Corynebacterium jeikeium, and Corynebacterium xerosis) were evaluated. The oil was found to contain 15 components, among which the most abundant component was methyl eugenol (37.6%), which was identified at every condition studied in different extraction methods. The oil extracted with n-hexane and ethanol mixture exhibited a strong antioxidant activity (92% ± 2%) and the highest ABTS and 2,2-diphenyl-1-picrylhydrazyl scavenging activities (89% ± 0.2%). The highest amounts of total phenolic content and total flavonoid content were 23.1 ± 0.4 mg/g and 4.9 ± 0.1 mg/g, respectively, in the traditional method. In the SC-CO2 method performed at 200 bar/50°C using ethanol as an entrainer, the highest inhibition zone was recorded against all the aforementioned bacteria. In particular, strong antibacterial activity (38 ± 2 mm) was found against M. luteus. The minimum inhibitory concentration (MIC) for the oil against bacteria ranged from 10.1 ± 0.1 μg/mL to 46 ± 2 μg/mL. The lowest MIC was found against M. luteus. Methyl eugenol was found to be one of the major compounds working against human body odor-producing bacteria.
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Affiliation(s)
| | | | | | | | - Byung-Soo Chun
- Corresponding author. Department of Food Science and Technology, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 608-737, Republic of Korea. E-mail address: (B.-S. Chun)
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Wang ZQ, Perumalsamy H, Wang M, Shu S, Ahn YJ. Larvicidal activity of Magnolia denudata seed hydrodistillate constituents and related compounds and liquid formulations towards two susceptible and two wild mosquito species. PEST MANAGEMENT SCIENCE 2016; 72:897-906. [PMID: 26085316 DOI: 10.1002/ps.4064] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 06/15/2015] [Accepted: 06/15/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Anopheles sinensis, Aedes aegypti and Aedes albopictus and Culex pipiens pallens mosquitoes transmit malaria, dengue fever and West Nile virus diseases respectively. This study was conducted to determine the toxicity of 17 constituents from Magnolia denudata seed hydrodistillate (MD-SHD) and four experimental MD-SHD liquid formulations (10-50 mg L(-1) liquid) to third-instar larvae from insecticide-susceptible Cx. p. pallens and Ae. aegypti as well as wild Ae. albopictus and An. sinensis. RESULTS 2,4-Di-tert-butylphenol was the most toxic constituent (LC50 1.98-3.90 mg L(-1)), followed by linoleic acid (7.19-10.49 mg L(-1)), towards larvae of the four mosquito species. High toxicity was also produced by nerolidol, (±)-limonene, α-terpinene and γ-terpinene (LC50 9.84-36.42 mg L(-1)). The toxicity of these compounds was virtually identical towards larvae of the four mosquito species, even though An. sinensis larvae were resistant to deltamethrin and temephos. The MS-SHD 50 mg L(-1) liquid resulted in 92-100% control towards larvae of the four mosquito species, while commercial temephos 200 g L(-1) emulsifiable concentrate was almost ineffective towards An. sinensis larvae (30% mortality). CONCLUSION Reasonable mosquito control in the aquatic environment can be achieved by MD-SHD 50 mg L(-1) liquid as a potential larvicide.
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Affiliation(s)
- Zhang-Qian Wang
- Entomology Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
| | - Haribalan Perumalsamy
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Mo Wang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Shaohua Shu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Young-Joon Ahn
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China
- Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
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Kim JR, Perumalsamy H, Lee JH, Ahn YJ, Lee YS, Lee SG. Acaricidal activity of Asarum heterotropoides root-derived compounds and hydrodistillate constitutes toward Dermanyssus gallinae (Mesostigmata: Dermanyssidae). EXPERIMENTAL & APPLIED ACAROLOGY 2016; 68:485-495. [PMID: 26708137 DOI: 10.1007/s10493-015-0005-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 12/15/2015] [Indexed: 06/05/2023]
Abstract
The acaricidal activity of Asarum heterotropoides root-derived principles, methyleugenol, safrole, 3-carene, α-asarone, pentadecane and A. heterotropoides root steam distillate constituents was tested against poultry red mites Dermanyssus gallinae (De Geer). All active principles were identified by spectroscopic analysis. Results were compared with those of two conventional acaricides, benzyl benzoate and N,N-diethyl-3-methylbenzamide (DEET). Methyleugenol (24 h LC50 = 0.57 µg/cm(2)) and safrole (24 h LC50 = 8.54 µg/cm(2)) were the most toxic compounds toward D. gallinae, followed by 3,4,5-trimethoxytoluene, 3,5-dimethoxytoluene, estragole, α-terpineol, verbenone, eucarvone, linalool, and terpinen-4-ol (LC50 = 15.65-27.88 µg/cm(2)). Methyleugenol was 16.7× and 11.0× more toxic than benzyl benzoate (LC50 = 9.52 μg/cm(2)) and DEET (LC50 = 6.28 μg/cm(2)), respectively; safrole was 1.1× and 0.73× more toxic. Asarum heterotropoides root-derived materials, particularly methyleugenol and safrole, merit further study as potential acaricides. Global efforts to reduce the level of highly toxic synthetic acaricides in indoor environments justify further studies on A. heterotropoides root extract and steam distillate preparations containing the active constituents described as potential contact-action fumigants for the control of mites.
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Affiliation(s)
- Jun-Ran Kim
- Crop Protection Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 565-851, Republic of Korea.
| | - Haribalan Perumalsamy
- Research Institute for Agriculture and Life Science, Seoul National University, Seoul, 151-921, South Korea
| | - Ju-Hee Lee
- Crop Protection Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 565-851, Republic of Korea
| | - Young-Joon Ahn
- Research Institute for Agriculture and Life Science, Seoul National University, Seoul, 151-921, South Korea
| | - Young Su Lee
- Gyeonggi Agricultural Research and Extension Services, Hwaseong, 445-784, Republic of Korea
| | - Sang-Guie Lee
- Crop Protection Division, Department of Agro-food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Wanju, 565-851, Republic of Korea
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Elumalai D, Hemavathi M, Hemalatha P, Deepaa CV, Kaleena PK. Larvicidal activity of catechin isolated from Leucas aspera against Aedes aegypti, Anopheles stephensi, and Culex quinquefasciatus (Diptera: Culicidae). Parasitol Res 2015; 115:1203-12. [PMID: 26711450 DOI: 10.1007/s00436-015-4856-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 11/27/2015] [Indexed: 02/02/2023]
Abstract
Vector control is facing a threat due to the emergence of resistance to synthetic insecticides. Insecticides of plant origin my serve as an alternative biocontrol technique in the future. The aim of the present study was to evaluate the larvicidal activity of fractions and compounds from the whole-plant methanol extracts of Leucas aspera on the fourth-instar larvae of Aedes aegypti, Anopheles stephensi, and Culex quinquefasciatus. The larvae were exposed to fractions with concentrations ranging from 1.25, 2.25, 5, 10, and 20 ppm and isolated compounds. After 24 h exposure, larval mortality was assessed. Among the eight fractions, four from hexane extractions showed potent larvicidal activity against tested mosquito species at 20 ppm concentration. The isolated compound catechin showed pronounced larvicidal activity at very low concentrations. The LC50 and LC90 values of catechin were 3.05 and 8.25 ppm against Ae. aegypti, 3.44 and 8.89 ppm against An. stephensi, and 3.76 and 9.79 ppm against C. quinquefasciatus, respectively. The isolated compound was subjected to spectral analyses (GC-MS, FTIR, (1)H NMR, and (13)C NMR) to elucidate the structure and to compare with spectral data literature.
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Affiliation(s)
- Devan Elumalai
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | - Maduraiveeran Hemavathi
- Department of Zoology, University of Madras, Guindy campus, Chennai, 600 025, Tamil Nadu, India
| | - Periaswamy Hemalatha
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | | | - Patheri Kunyil Kaleena
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India.
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Velu K, Elumalai D, Hemalatha P, Janaki A, Babu M, Hemavathi M, Kaleena PK. Evaluation of silver nanoparticles toxicity of Arachis hypogaea peel extracts and its larvicidal activity against malaria and dengue vectors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:17769-17779. [PMID: 26154036 DOI: 10.1007/s11356-015-4919-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
Silver nanoparticles (AgNPs) were successfully synthesised from aqueous silver nitrate using the extracts of Arachis hypogaea peels. The synthesised SNPs were characterized by Fourier transform-infrared spectroscopy analysis, X-ray diffraction, transmission electron microscopy analysis and high-resonance scanning electron microscopy, and energy dispersive X-ray spectroscopy. AgNPs were well defined and measured 20 to 50 nm in size. The nanoparticles were crystallized with a face-centered cubic structure. Larvicidal activity of synthesised AgNPs from A. hypogaea peels was tested for their larvicidal activity against the fourth instar larvae of Aedes aegypti (Yellow fever), Anopheles stephensi (Human malaria). The results suggest that the synthesised AgNPs have the potential to be used as an ideal eco-friendly resource for the control of A. aegypti and A. stephensi. This study provides the first report on the mosquito larvicidal activity of synthesised AgNPs from A. hypogaea peels against vectors of malaria and dengue.
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Affiliation(s)
- Kuppan Velu
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | - Devan Elumalai
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | - Periaswamy Hemalatha
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | - Arumugam Janaki
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | - Muthu Babu
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India
| | - Maduraiveeran Hemavathi
- Department of Zoology, University of Madras, Guindy campus, Chennai, 600 025, Tamil Nadu, India
| | - Patheri Kunyil Kaleena
- Department of Zoology, Presidency College (Autonomous), Chennai, 600 005, Tamil Nadu, India.
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Moussavi N, Malterud KE, Mikolo B, Dawes D, Chandre F, Corbel V, Massamba D, Overgaard HJ, Wangensteen H. Identification of chemical constituents of Zanthoxylum heitzii stem bark and their insecticidal activity against the malaria mosquito Anopheles gambiae. Parasit Vectors 2015; 8:503. [PMID: 26427956 PMCID: PMC4591583 DOI: 10.1186/s13071-015-1113-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 09/24/2015] [Indexed: 02/08/2023] Open
Abstract
Background Zanthoxylum heitzii bark extracts have insecticidal properties and have been reported to be used against malaria in Western Africa. Previously, it has been shown that a hexane extract of the bark is toxic to adult females of the mosquito Anopheles gambiae, a malaria vector. As part of our project on the control of malaria vectors using plant extracts, the phytochemistry of Z. heitzii bark hexane extract has been investigated with the aim to identify the major components with adulticidal and larvicidal effects on An. gambiae. Methods Z. heitzii stem bark was extracted with hexane, and the extract was fractionated to isolate major components from the bark, identified by NMR spectroscopy. Isolated compounds were tested for toxicity towards adult female An. gambiae mosquitoes and for larvicidal effects towards An. gambiae. Results The alkaloid dihydronitidine, the sesquiterpenoid caryophyllene oxide, the amide pellitorine and the lignan sesamin were identified as the major constituents in Z. heitzii bark. Pellitorine was toxic to both adult insects (LD50 50 ng/mg insect) and larvae (LD50 13 μg/ml). None of the other compounds were toxic to adults, but caryophyllene oxide and sesamin exhibited moderate larvicidal effects (LD50 > 150 μg/ml). A mixture of the four compounds in the same ratio as in the hexane extract showed higher toxicity (LD50 34 ng/mg insect) towards adult insects than the pure compounds. Conclusion The toxicity of Z. heitzii bark hexane extract to An. gambiae is mostly due to pellitorine, although interactions between pellitorine and other, inactive constituents may enhance the activity of the extract.
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Affiliation(s)
- Nastaran Moussavi
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
| | - Karl Egil Malterud
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
| | - Bertin Mikolo
- National Polytechnic High School, Marien Ngouabi University, BP 69, Brazzaville, Republic of Congo.
| | - Dag Dawes
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
| | - Fabrice Chandre
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (IRD 224-CNRS 5290 UM1-UM2), Montpellier, Cedex 5, France.
| | - Vincent Corbel
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (IRD 224-CNRS 5290 UM1-UM2), Montpellier, Cedex 5, France.
| | - Daniel Massamba
- National Polytechnic High School, Marien Ngouabi University, BP 69, Brazzaville, Republic of Congo.
| | - Hans J Overgaard
- Institut de Recherche pour le Développement (IRD), Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle (IRD 224-CNRS 5290 UM1-UM2), Montpellier, Cedex 5, France. .,Department of Mathematical Sciences and Technology, Norwegian University of Life Sciences, P.O. Box 5003, Ås, Norway. .,Department of Entomology, Kasetsart University, Bangkok, Thailand.
| | - Helle Wangensteen
- School of Pharmacy, Department of Pharmaceutical Chemistry, Section Pharmacognosy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway.
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Ahmed MAI, Vogel CFA. Synergistic action of octopamine receptor agonists on the activity of selected novel insecticides for control of dengue vector Aedes aegypti (Diptera: Culicidae) mosquito. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 120:51-56. [PMID: 25987220 DOI: 10.1016/j.pestbp.2015.01.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/16/2015] [Accepted: 01/19/2015] [Indexed: 06/04/2023]
Abstract
Studying insecticide resistance in mosquitoes has attracted the attention of many scientists to elucidate the pathways of resistance development and to design novel strategies in order to prevent or minimize the spread and evolution of resistance. Here, we tested the synergistic action of piperonyl butoxide (PBO) and two octopamine receptor (OR) agonists, amitraz (AMZ) and chlordimeform (CDM) on selected novel insecticides to increase their lethal action on the fourth instar larvae of Aedes aegypti L. However, chlorfenapyr was the most toxic insecticide (LC50 = 193, 102, and 48 ng/ml, after 24, 48, and 72 h exposure, respectively) tested. Further, PBO synergized all insecticides and the most toxic combinatorial insecticide was nitenpyram even after 48 and 72 h exposure. In addition, OR agonists significantly synergized most of the selected insecticides especially after 48 and 72 h exposure. The results imply that the synergistic effects of amitraz are a promising approach in increasing the potency of certain insecticides in controlling the dengue vector Ae. aegypti mosquito.
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Affiliation(s)
- Mohamed Ahmed Ibrahim Ahmed
- Plant Protection Department, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt; Center for Health and the Environment, University of California Davis, Davis, CA 95616, USA
| | - Christoph Franz Adam Vogel
- Center for Health and the Environment, University of California Davis, Davis, CA 95616, USA; Environmental Toxicology Department, University of California Davis, Davis, CA 95616, USA.
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Kim JR, Perumalsamy H, Kwon MJ, Chae SU, Ahn YJ. Toxicity of hiba oil constituents and spray formulations to American house dust mites and copra mites. PEST MANAGEMENT SCIENCE 2015; 71:737-743. [PMID: 24916027 DOI: 10.1002/ps.3843] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 05/26/2014] [Accepted: 06/02/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Dermatophagoides farinae and Tyrophagus putrescentiae are recognised as an important source of allergens. An assessment was made of the toxicity of hiba, Thujopsis dolabrata var. hondai, oil and 13 organic compounds and the control efficacy of four experimental spray formulations containing the oil (5-30 g L(-1) spray) against both mite species. RESULTS In a contact + fumigant mortality bioassay, (-)-thujopsene was the most toxic constituent against D. farinae and T. putrescentiae (24 h LC50 9.82 and 10.92 µg cm(-2)), and the toxicity of the compound was nearly identical to that of benzyl benzoate (9.33 and 10.14 µg cm(-2)). The toxicity was more pronounced in carvacrol, (+)-terpinen-4-ol, β-thujaplicin, (-)-terpinen-4-ol, cedrol and α-terpineol (LC50 12.05-15.20 and 12.74-16.48 µg cm(-2)) than in N,N-diethyl-3-methylbenzamide (LC50 35.53 and 38.42 µg cm(-2)) against both mite species. The hiba oil 30 g L(-1) spray and commercial permethrin (cis:trans 25:75) 2.5 g L(-1) spray treatment resulted in 100 and 11% mortality against the two mite species respectively. In vapour-phase mortality tests, the two compounds were consistently more toxic in closed versus open containers, indicating that toxicity was achieved mainly through the action of vapour. CONCLUSION Reasonable mite control in indoor environments can be achieved by a spray formulation containing the 30 g L(-1) hiba oil as a potential contact-action fumigant.
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Affiliation(s)
- Jun-Ran Kim
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
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Perumalsamy H, Jang MJ, Kim JR, Kadarkarai M, Ahn YJ. Larvicidal activity and possible mode of action of four flavonoids and two fatty acids identified in Millettia pinnata seed toward three mosquito species. Parasit Vectors 2015; 8:237. [PMID: 25928224 PMCID: PMC4410478 DOI: 10.1186/s13071-015-0848-8] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 04/08/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Aedes aegypti and Aedes albopictus and Culex pipiens pallens mosquitoes transmit dengue fever and West Nile virus diseases, respectively. This study was conducted to determine the toxicity and mechanism of action of four flavonoids and two fatty acids from Millettia pinnata (Fabaceae) seed as well as six pure fatty acids and four fatty acid esters toward third instar larvae from insecticide-susceptible C. pipiens pallens and A. aegypti as well as wild A. albopictus. Efficacy of 12 experimental liquid formulations containing M. pinnata seed methanol extract and hydrodistillate (0.5-10.0% liquids) was also assessed. METHODS The contact toxicities of all compounds and 12 formulations were compared with those of two larvicides, temephos and fenthion and the commercial temephos 200 g/L emulsifiable concentrate (EC). The possible mode of larvicidal action of the constituents was elucidated using biochemical methods. Larval mortality and cAMP level were analyzed by the Bonferroni multiple-comparison method. RESULTS Potent toxicity was produced by karanjin, oleic acid, karanjachromene, linoleic acid, linolenic acid, pongamol, pongarotene, and elaidic acid toward C. pipiens pallens larvae (24 h LC50, 14.61-28.22 mg/L) and A. aegypti larvae (16.13-37.61 mg/L). Against wild A. albopictus larvae, oleic acid (LC50, 18.79 mg/L) and karanjin (35.26 mg/L) exhibited potent toxicity. All constituents were less toxic than either temephos or fenthion. Structure-activity relationship indicates that the degree of saturation, the side chain length, and the geometric isomerism of fatty acids appear to play a role in determining the fatty acid toxicity. Acetylcholinesterase (AChE) is the main site of action of the flavonoids, oleic acid, and palmitic acid. The mechanism of larvicidal action of elaidic acid, arachidic acid, and behenic acid might be due to interference with the octopaminergic system. Linoleic acid and linolenic acid might act on both AChE and octopaminergic receptor. M. pinnata seed extract or hydrodistillate applied as 10% liquid provided 100% mortality toward the three mosquito species larvae and the efficacy of the liquids was comparable to that of temephos 200 g/L EC. CONCLUSION Further studies will warrant possible applications of M. pinnata seed-derived products as potential larvicides for the control of mosquito populations.
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Affiliation(s)
- Haribalan Perumalsamy
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Myung Jin Jang
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
| | - Jun-Ran Kim
- National Academy of Agricultural Science, Rural Development Administration, Wanju, 565-851, Jeollabuk-do, Republic of Korea.
| | - Murugan Kadarkarai
- Department of Zoology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India.
| | - Young-Joon Ahn
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 151-921, Republic of Korea.
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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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Zhang L, Wang C, Miao D, Yuan D, Bi K, Yang J, Zhan L. Simultaneous determination of six constituents in Mahuang Fuzi Xixin by UPLC-PDA–MS/MS. Nat Prod Res 2014; 29:772-5. [DOI: 10.1080/14786419.2014.983104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Lin Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, P.R. China
- Post-Doctoral Research Center, Reyoung Pharmaceutical Co., Ltd, 256100 Shandong, P.R. China
- Academy of Integrative Medicine, Dalian Medical University, 116044 Dalian, P.R. China
| | - Chengying Wang
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, P.R. China
| | - Dezu Miao
- Post-Doctoral Research Center, Reyoung Pharmaceutical Co., Ltd, 256100 Shandong, P.R. China
| | - Dan Yuan
- Institution of Traditional Chinese Medicine, Shenyang Pharmaceutical University, 110016 Shenyang, P.R. China
| | - Kaishun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, P.R. China
| | - Jingyu Yang
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, P.R. China
| | - Libin Zhan
- Academy of Integrative Medicine, Dalian Medical University, 116044 Dalian, P.R. China
- Department of Traditional Chinese Medicine, The Second Affiliated Hospital, Dalian Medical University, 116023 Dalian, P.R. China
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Rhynchophorus ferrugineus midgut cell line to evaluate insecticidal potency of different plant essential oils. In Vitro Cell Dev Biol Anim 2014; 51:281-6. [PMID: 25381034 DOI: 10.1007/s11626-014-9825-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 09/17/2014] [Indexed: 10/24/2022]
Abstract
Cell cultures can be a potent and strong tool to evaluate the insecticidal efficiency of natural products. Plant essential oils have long been used as the fragrance or curative products around the world which means that they are safer to be used in close proximity of humans and mammals. In this study, a midgut cell line, developed from Rhynchophorus ferrugineus (RPW-1), was used for screening essential oils from nine different plants. Assays revealed that higher cell mortality was observed at 500 ppm which reached to 86, 65, 60, 59, 56, 54, 54, 53, and 53%, whereas lowest cell mortality at 1 ppm remained at 41, 23, 20, 17, 16, 15, 14, 13, and 10%, for Azadirachta indica, Piper nigrum, Mentha spicata, Cammiphora myrrha, Elettaria cardamomum, Zingiber officinale, Curcuma longa, Schinus molle, and Rosmarinus officinalis, respectively. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cell proliferation assay revealed the percentage of cell growth inhibition was highest at 500 ppm and remained at 48, 45, 42, 37, 34, 29, 24, 22, and 18% against A. indica, P. nigrum, M. spicata, C. myrrha, E. cardamomum, Z. officinale, C. longa, S. molle, and R. officinalis, respectively. Lowest LC50 value (7.98 ppm) was found for A. indica, whereas the highest LC50 (483.11 ppm) was against R. officinalis. Thus, in this study, essential oils of A. indica exhibited the highest levels of toxicity, whereas those from R. officinalis exhibited the lowest levels of toxicity toward RPW-1 cells.
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Chang KS, Shin EH, Yoo DH, Ahn YJ. Enhanced toxicity of binary mixtures of Bacillus thuringiensis subsp. israelensis and three essential oil major constituents to wild Anopheles sinensis (Diptera: Culicidae) and Aedes albopictus (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2014; 51:804-810. [PMID: 25118412 DOI: 10.1603/me13128] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An assessment was made of the toxicity of 12 insecticides and three essential oils as well as Bacillus thuringiensis subsp. israelensis (Bti) alone or in combination with the oil major constituents (E)-anethole (AN), (E) -cinnamaldehyde (CA), and eugenol (EU; 1:1 ratio) to third instars of bamboo forest-collected Aedes albopictus (Skuse) and rice paddy field-collected Anopheles sinensis Wiedemann. An. sinensis larvae were resistant to various groups of the tested insecticides. Based on 24-h LC50 values, binary mixtures of Bti and CA, AN, or EU were significantly more toxic against Ae. albopictus larvae (0.0084, 0.0134, and 0.0237 mg/liter) and An. sinensis larvae (0.0159, 0.0388, and 0.0541 mg/liter) than either Bti (1.7884 and 2.1681 mg/liter) or CA (11.46 and 18.56 mg/liter), AN (16.66 and 25.11 mg/liter), or EU (24.60 and 31.09 mg/liter) alone. As judged by cotoxicity coefficient (CC) and synergistic factor (SF), the three binary mixtures operated in a synergy pattern (CC, 140.7-368.3 and SF, 0.0007-0.0010 for Ae. albopictus; CC, 75.1-245.3 and SF, 0.0008-0.0017 for An. sinensis). Global efforts to reduce the level of highly toxic synthetic insecticides in the aquatic environment justify further studies on the binary mixtures of Bti and essential oil constituents described, in particular CA, as potential larvicides for the control of malaria vector mosquito populations.
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Lee J, Lee YJ, Oh SM, Yi JM, Kim NS, Bang OS. Bioactive compounds from the roots of Asiasarum heterotropoides. Molecules 2013; 19:122-38. [PMID: 24366089 PMCID: PMC6270674 DOI: 10.3390/molecules19010122] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 12/13/2013] [Accepted: 12/16/2013] [Indexed: 01/15/2023] Open
Abstract
A new tetrahydrofuran lignan, (7S,8R,7'S,8'S)-3-methoxy-3',4'-methylenedioxy-7,9'-epoxylignane-4,7',9-triol (1), and 21 known compounds 2–22 were isolated from the roots of Asiasarum heterotropoides by chromatographic separation methods. The structures of all compounds 1–22 were elucidated by spectroscopic analysis including 1D- and 2D-NMR. Fourteen of these compounds (1–3, 7, 10, 12–17, 19, 21, and 22) were isolated from this species in this study for the first time. All of the isolates were evaluated for their anticancer activities using in vitro assays. Among the 22 tested compounds, two (compounds 5 and 7) induced the downregulation of NO production, FOXP3 expression, and HIF-1α transcriptional activity.
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Affiliation(s)
| | | | | | | | | | - Ok-Sun Bang
- KM-Based Herbal Drug Development Group, Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Daejeon 305-811, Korea.
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Perumalsamy H, Kim JR, Oh SM, Jung JW, Ahn YJ, Kwon HW. Novel histopathological and molecular effects of natural compound pellitorine on larval midgut epithelium and anal gills of Aedes aegypti. PLoS One 2013; 8:e80226. [PMID: 24260359 PMCID: PMC3832413 DOI: 10.1371/journal.pone.0080226] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 10/01/2013] [Indexed: 11/19/2022] Open
Abstract
The yellow fever mosquito, Aedes aegypti, is a vector for transmitting dengue fever and yellow fever. In this study, we assessed the histopathological and molecular effects of pellitorine, an isobutylamide alkaloid, on the third instar of Ae. aegypti larvae. At 5 mg/l concentration of pellitorine, the whole body of the treated larvae became dark in color, particularly damaged thorax and abdominal regions. Pellitorine was targeted mainly on midgut epithelium and anal gills, indicating variably dramatic degenerative responses of the midgut through a sequential epithelial disorganization. The anterior and posterior midgut was entirely necrosed, bearing only gut lumen residues inside the peritrophic membranes. Pellitorine caused comprehensive damage of anal gill cells and branches of tracheole and debris was found in hemolymph of the anal gills. RT-PCR analysis indicates that the compound inhibited gene expression encoding V-type H+-ATPase and aquaporine 4 after treatment with 2.21 mg/l pellitorine. These results verify that pellitorine merits further study as a potential larvicide with a specific target site and a lead molecule for the control of mosquito populations.
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Affiliation(s)
- Haribalan Perumalsamy
- Research Institute for Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Jun-Ran Kim
- Research Institute for Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Sang Mi Oh
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Je Won Jung
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
| | - Young-Joon Ahn
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
- * E-mail: (Y-JA); (HWK)
| | - Hyung Wook Kwon
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
- * E-mail: (Y-JA); (HWK)
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Kim MG, Jeon JH, Lee HS. Larvicidal activity of the active constituent isolated from Tabebuia avellanedae bark and structurally related derivatives against three mosquito species. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10741-10745. [PMID: 24144401 DOI: 10.1021/jf403679h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Mosquito larvicidal activities of active constituent isolated from Tabebuia avellanedae bark and its structurally related derivatives were examined against the fourth instar larvae of Aedes aegypti, Culex pipiens pallens, and Ochlerotatus togoi. The insecticidal constituent of T. avellanedae bark was isolated by chromatographic techniques and identified as 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthalenedione. On the basis of the 50% lethal concentration (LC50) values against C. pipiens pallens larvae, the most toxic compound was 1,4-naphthalenedione (1.26 mg/L), followed by 1,2-naphthalenedione (1.43 mg/L), 1,4-naphthalenediol (3.20 mg/L), 2-chloro-3-pyrrolidino-1,4-naphthalenedione (5.11 mg/L), 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthalenedione (8.30 mg/L), and 2-chloro-3-morpholino-1,4-naphthalenedione (12.98 mg/L). Similar results against A. aegypti and O. togoi larvae were observed for 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthalenedione and its derivatives. According to the LC50 values against three mosquito species, these compounds were less toxic than pirimiphos-methyl. Nonetheless, naturally occurring T. avaellenedae bark-derived materials could be useful as a natural mosquito control agent.
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Affiliation(s)
- Min-Gi Kim
- Department of Bioenvironmental Chemistry and Institute of Agricultural Science and Technology, Chonbuk National University , Jeonju 561-756, Republic of Korea
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Growth-Inhibiting and morphostructural effects of constituents identified in Asarum heterotropoides root on human intestinal bacteria. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 13:245. [PMID: 24083511 PMCID: PMC3850407 DOI: 10.1186/1472-6882-13-245] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 09/24/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND The growth-inhibiting and morphostructural effects of seven constituents identified in Asarum heterotropoides root on 14 intestinal bacteria were compared with those of the fluoroquinolone antibiotic ciprofloxacin. METHOD A microtiter plate-based bioassay in sterile 96-well plates was used to evaluate the minimal inhibitory concentrations (MICs) of the test materials against the organisms. RESULTS δ-3-Carene (5) exhibited the most potent growth inhibition of Gram-positive bacteria (Clostridium difficile ATCC 9689, Clostridium paraputrificum ATCC 25780, Clostridium perfringens ATCC 13124, and Staphylococcus aureus ATCC 12600) and Gram-negative bacteria (Escherichia coli ATCC 11775 and Bacteroides fragilis ATCC 25285) (minimal inhibitory concentrations (MIC), 0.18-0.70 mg/mL) except for Salmonella enterica serovar Typhimurium ATCC 13311 (MIC, 2.94 mg/mL). The MIC of methyleugenol (2), 1,8-cineole (3), α-asarone (4), (-)-asarinin (6), and pellitorine (7) was between 1.47 and 2.94 mg/mL against all test bacteria (except for compound 2 against C. difficile (0.70 mg/mL); compounds 1 (23.50 mg/mL) and 4 (5.80 mg/mL) against C. paraputricum; compounds 2 (5.80 mg/mL), 4 (12.0 mg/mL), and 7 (0.70 mg/mL) against C. perfringens); compound 1 against E. coli (7.20 mg/mL) and S. enterica serovar Typhimurium (12.0 mg/mL). Overall, all of the constituents were less potent at inhibiting microbial growth than ciprofloxacin (MIC, 0.063-0.25 mg/ mL). The lactic acid-producing bacteria (four bifidobacteria and two lactobacilli) and one acidulating bacterium Clostridium butyricum ATCC 25779 were less sensitive and more susceptible than the five harmful bacteria and two nonpathogenic bacteria (B. fragilis and E. coli) to the constituents and to ciprofloxacin, respectively. Beneficial Gram-positive bacteria and harmful and nonpathogenic Gram-negative bacteria were observed to have different degrees of antimicrobial susceptibility to the constituents, although the antimicrobial susceptibility of the harmful Gram-positive bacteria and the harmful and nonpathogenic Gram-negative bacteria was not observed. Scanning electron microscopy observations showed different degrees of physical damage and morphological alteration to both Gram-positive and Gram-negative bacteria treated with α-asarone, δ-3-carene, pellitorine, or ciprofloxacin, indicating that they do not share a common mode of action. CONCLUSION A. heterotropoides root-derived materials described merit further study as potential antibacterial products or lead molecules for the prevention or eradication from humans from diseases caused by harmful intestinal bacteria.
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Forim MR, Costa ES, da Silva MFDGF, Fernandes JB, Mondego JM, Boiça Junior AL. Development of a new method to prepare nano-/microparticles loaded with extracts of Azadirachta indica, their characterization and use in controlling Plutella xylostella. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:9131-9. [PMID: 23991702 DOI: 10.1021/jf403187y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Biodegradable nanoparticles have been widely explored as carriers for controlled delivery of therapeutic molecules; however, studies describing the development of nanoparticles as carriers for biopesticide products are few. In this work, a new method to prepare nanoparticles loaded with neem (Azadirachta indica) extracts is presented. In this study, nanoparticles were formulated as colloidal suspension and (spray-dried) powder and characterized by evaluating pH, particle size, zeta potential, morphology, absolute recovery, and entrapment efficiency. A high-performance liquid chromatography method was used for nanoparticle characterization. The best formulations presented absolute recovery and entrapment efficiencies of approximately 100% and a release profile based on swelling and relaxation of the polymer or polymer erosion. The biological data of the formulated products against Plutella xylostella showed 100% larval mortality. The nanoparticle information improved the stability of neem products against ultraviolet radiation and increased their dispersion in the aqueous phase.
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Affiliation(s)
- Moacir Rossi Forim
- Department of Chemistry, Federal University of São Carlos , Rod. Washington Luiz, Km 235, PB 676, São Carlos, SP 13.565-905, Brazil
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Kopyt’ko YF, Shchurevich NN, Sokol’skaya TA, Markaryan AA, Dargaeva TD. Uses, Chemical Composition, and Standardization of Plant Raw Material and Medicinal Substances from Plants of the Genus Asarum L. Pharm Chem J 2013. [DOI: 10.1007/s11094-013-0917-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lee DC, Ahn YJ. Laboratory and Simulated Field Bioassays to Evaluate Larvicidal Activity of Pinus densiflora Hydrodistillate, Its Constituents and Structurally Related Compounds against Aedes albopictus, Aedes aegypti and Culex pipiens pallens in Relation to Their Inhibitory Effects on Acetylcholinesterase Activity. INSECTS 2013; 4:217-29. [PMID: 26464387 PMCID: PMC4553520 DOI: 10.3390/insects4020217] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 11/16/2022]
Abstract
The toxicity of Pinus densiflora (red pine) hydrodistillate, its 19 constituents and 28 structurally related compounds against early third-instar larvae of Aedes albopictus (Ae. albopictus), Aedes aegypti (Ae. aegypti) and Culex pipiens palles (Cx. p. pallens) was examined using direct-contact bioassays. The efficacy of active compounds was further evaluated in semi-field bioassays using field-collected larval Cx. p. pallens. Results were compared with those of two synthetic larvicides, temephos and fenthion. In laboratory bioassays, Pinus densiflora hydrodistillate was found to have 24 h LC50 values of 20.33, 21.01 and 22.36 mg/L against larval Ae. albopictus, Ae. aegypti and Cx. p. pallens respectively. Among the identified compounds, thymol, δ-3-carene and (+)-limonene exhibited the highest toxicity against all three mosquito species. These active compounds were found to be nearly equally effective in field trials as well. In vitro bioassays were conducted to examine the acetylcholinesterase (AChE) inhibitory activity of 10 selected compounds. Results showed that there is a noticeable correlation between larvicidal activity and AChE inhibitory activity. In light of global efforts to find alternatives for currently used insecticides against disease vector mosquitoes, Pinus densiflora hydrodistillate and its constituents merit further research as potential mosquito larvicides.
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Affiliation(s)
- Dong Chan Lee
- International Course, Hankuk Academy of Foreign Studies, Yongin 449-854, Korea.
| | - Young-Joon Ahn
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Korea.
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Liu XC, Zhou LG, Liu ZL, Du SS. Identification of insecticidal constituents of the essential oil of Acorus calamus rhizomes against Liposcelis bostrychophila Badonnel. Molecules 2013; 18:5684-96. [PMID: 23676474 PMCID: PMC6270123 DOI: 10.3390/molecules18055684] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 05/06/2013] [Accepted: 05/13/2013] [Indexed: 11/30/2022] Open
Abstract
The aim of this research was to determine the chemical composition of the essential oil of Acorus calamus rhizomes, its insecticidal activity against the booklouse, (Liposcelis bostrychophila) and to isolate any insecticidal constituents from the essential oil. The essential oil of A. calamus rhizomes was obtained by hydrodistillation and analyzed by GC-FID and GC-MS. A total of 32 components of the essential oil of A. calamus rhizomes was identified and the principal compounds in the essential oil were determined to be α-asarone (50.09%), (E)-methylisoeugenol (14.01%), and methyleugenol (8.59%), followed by β-asarone (3.51%), α-cedrene (3.09%) and camphor (2.42%). Based on bioactivity-guided fractionation, the three active constituents were isolated from the essential oil and identified as methyleugenol, (E)-methylisoeugenol and α-asarone. The essential oil exhibited contact toxicity against L. bostrychophila with an LD50 value of 100.21 µg/cm2 while three constituent compounds, α-asarone, methyleugenol, and (E)-methylisoeugenol had LD50 values of 125.73 µg/cm2, 103.22 µg/cm2 and 55.32 µg/cm2, respectively. Methyleugenol and (E)-methylisoeugenol possessed fumigant toxicity against L. bostrychophila adults with LC50 values of 92.21 μg/L air and 143.43 μg/L air, respectively, while the crude essential oil showed an LC50 value of 392.13 μg/L air. The results indicate that the essential oil of A. calamus rhizomes and its constituent compounds have potential for development into natural fumigants/insecticides for control of the booklice.
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Affiliation(s)
- Xin Chao Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China; E-Mail:
| | - Li Gang Zhou
- Department of Plant Pathology, China Agricultural University, Haidian District, Beijing 100193, China; E-Mail:
| | - Zhi Long Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China; E-Mail:
- Authors to whom correspondence should be addressed; E-Mail: (Z.L.L.); (S.S.D.); Tel./Fax: +86-10-6273-2800 (Z.L.L.); Tel./Fax: +86-10-6220-8032 (S.S.D.)
| | - Shu Shan Du
- College of Resources Science and Technology, Beijing Normal University, Haidian District, Beijing 100875, China
- Authors to whom correspondence should be addressed; E-Mail: (Z.L.L.); (S.S.D.); Tel./Fax: +86-10-6273-2800 (Z.L.L.); Tel./Fax: +86-10-6220-8032 (S.S.D.)
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Wang Z, Kim JR, Wang M, Shu S, Ahn YJ. Larvicidal activity of Cnidium monnieri fruit coumarins and structurally related compounds against insecticide-susceptible and insecticide-resistant Culex pipiens pallens and Aedes aegypti. PEST MANAGEMENT SCIENCE 2012; 68:1041-1047. [PMID: 22389164 DOI: 10.1002/ps.3265] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Revised: 11/15/2011] [Accepted: 01/06/2012] [Indexed: 05/31/2023]
Abstract
BACKGROUND An assessment was made of the toxicity of imperatorin and osthole identified in Cnidium monnieri fruit, 11 related compounds and five insecticides to larvae from insecticide-susceptible Culex pipiens pallens (KS-CP strain) and Aedes aegypti and wild C.p. pallens (YS-CP colony) using a direct-contact mortality bioassay. Results were compared with those of the conventional larvicide temephos. RESULTS Imperatorin (LC(50) = 3.14 and 2.88 mg L(-1) ) was 1.9-, 3.7- and 4.2-fold and 2.4-, 4.5- and 4.6-fold more toxic than isopimpinellin, isoimperatorin and osthole against susceptible C. p. pallens and A. aegypti larvae respectively. Overall, all of the compounds were less toxic than temephos (0.011 and 0.019 mg L(-1) ). The toxicity of these compounds was virtually identical against larvae from the two Culex strains, even though YS-CP larvae were resistant to fenthion (resistance ratio RR = 390), deltamethrin (RR = 164), cyfluthrin (RR = 14) and temephos (RR = 14). This finding indicates that the coumarins and the insecticides do not share a common mode of action. The structure-activity relationship indicates that the chemical structure and alkoxy substitution and length of the alkoxyl side chain at the C8 position are essential for imparting toxicity. CONCLUSION The C. monnieri fruit-derived coumarins and the related coumarins described merit further study as potential insecticides or lead molecules for the control of insecticide-resistant mosquito populations.
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Affiliation(s)
- Zhangqian Wang
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea
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Chang KS, Shin EH, Park C, Ahn YJ. Contact and fumigant toxicity of Cyperus rotundus steam distillate constituents and related compounds to insecticide-susceptible and -resistant Blattella germanica. JOURNAL OF MEDICAL ENTOMOLOGY 2012; 49:631-639. [PMID: 22679871 DOI: 10.1603/me11060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We assessed the toxicity of 17 steam distillate constituents of Cyperus rotundus (L.) rhizome, another seven known compounds of C. rotundus rhizome, and 14 structurally related compounds to females from an insecticide-susceptible KSS strain and two field-collected SEL and DJN colonies of Blattella germanica (L.). High contact + fumigant toxicity to KSS females was produced by p-cymene, nerol, linalool, o-cymene, (S)-(-)-citronellal, (1S)-(-)-camphor, terpinolene, and m-cymene (LD50, 0.29-0.47 mg/cm2). The toxicity of these compounds was virtually identical against females from any of the three strains, even though SEL and DJN females were resistant to six acetylcholinesterase inhibitors and three pyrethroids (resistance ratio, 9-154 and 12-195). These results indicate that the compounds and insecticides do not share a common mode of action or elicit cross-resistance. The test compounds were effective in closed but not in open containers against SEL females, indicating that their route of insecticidal action was largely a result of vapor action. Structure-activity relationship indicates that structural characteristics, such as types of functional groups, appear to play a role in determining the terpenoid toxicities to B. germanica. C. rotundus rhizome steam distillate constituents and related compounds described merit further study as potential fumigants for the control of resistant cockroach populations in light of global efforts to reduce the level of highly toxic synthetic insecticides in indoor environments.
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Affiliation(s)
- Kyu-Sik Chang
- Division of Medical Entomology, National Institute of Health, Korea Center for Disease Control and Prevention, Osong 363-ungbuk, Republic of Korea
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Perumalsamy H, Kim JR, Kim SI, Kwon HW, Ahn YJ. Enhanced toxicity of binary mixtures of larvicidal constituents from Asarum heterotropoides root to Culex pipiens pallens (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2012; 49:107-111. [PMID: 22308778 DOI: 10.1603/me11092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The toxicity of pellitorine alone or in combination with (-)-asarinin, alpha-asarone, methyleugenol, or pentadecane (1:1, 1:2, 1:3, 2:1, and 3:1 ratios) to third instars from an insecticide-susceptible KS-CP strain and -resistant DJ-CP colony of Culex pipiens pallens Coquillett was evaluated using a direct-contact mortality bioassay. The binary mixture of pellitorine and (-)-asarinin (3:1 ratio) was significantly more toxic against KS-CP larvae (0.95 mg/liter) and DJ-CP larvae (1.07 mg/liter) than either pellitorine (2.08 mg/liter for KS-CP and 2.33 mg/liter for DJ-CP) or (-)-asarinin (11.45 and 12.61 mg/liter) alone. The toxicity of the other binary mixtures (1:1, 1:2, 1:3, and 2:1 ratios) and pellitorine did not differ significantly from each other. Based on the co-toxicity coefficient (CC) and synergistic factor (SF), the three binary mixtures (1:3, 2:1, and 3:1) operated synergistically (CC, 250-390 and SF, 1.4-2.2 for KS-CP; CC, 257-279 and SF, 1.1-2.1 for DJ-CP). The binary mixtures of pellitorine and (-)-asarinin merit further study as potential larvicides for the control of insecticide-resistant mosquito populations.
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Affiliation(s)
- Haribalan Perumalsamy
- Entomology Major, Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
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Bioactive Natural Products as Potential Candidates to Control Aedes aegypti, the Vector of Dengue. STUDIES IN NATURAL PRODUCTS CHEMISTRY VOLUME 37 2012. [DOI: 10.1016/b978-0-444-59514-0.00010-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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