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Wang R, Du K, Meng X, Zhang Q, Wei W, Li J, Fang S, Chang Y. A strategy of accuracy quantification by extending the concentration monitoring coverage based on online double collision energy of ultra-high performance liquid chromatography tandem mass spectrometry: The pharmacokinetics of Toddalia asiatica as a case study. J Chromatogr A 2024; 1716:464634. [PMID: 38217962 DOI: 10.1016/j.chroma.2024.464634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/05/2024] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
To facilitate the safety, efficacy and rationality of clinical application of traditional Chinese medicines (TCMs), pharmacokinetic research played an indispensable role. The key challenge during pharmacokinetic investigation lied at the substantial fluctuation of compound concentrations in the plasma over the course of absorption. Taking the pharmacokinetics of six compounds after administration of Toddalia asiatica (TA) as an example, an efficient strategy was established by introducing the online double collision energy (ODCE) into the quantification process applying ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). During the analytical program, double collision energy (DCE) was optimized to establish the dual calibration curve (DCC) with large concentration monitoring coverage (CMC) for meeting the wide content range of certain target compounds. Method validation test was performed in terms of linearity, precision, sensitivity, matrix effect, recovery, etc. The results displayed that the CMC of todarolactone with high exposure in plasma was extended from 1.25-2,500 ng/mL to 1.25-125,000 ng/mL. Furthermore, a rapid UHPLC-MS/MS method integrated with ODCE was successfully applied to the determination of six compounds in rat plasma, revealing an extremely high plasma concentration of todarolactone (16,662 ng/mL). This strategy could expand the range of quantification while retaining extraordinary sensitivity. Consequently, it could be a fit-for-purpose strategy to quantify compounds over a wide concentration range for in vivo process monitoring.
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Affiliation(s)
- Rui Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Kunze Du
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Xue Meng
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qianqian Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Wei Wei
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jin Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Shiming Fang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Yanxu Chang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China.
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Rodrigues Dos Santos D, Lopes Chaves L, Couto Pires V, Soares Rodrigues J, Alves Siqueira de Assunção M, Bezerra Faierstein G, Gomes Barbosa Neto A, de Souza Rebouças J, Christine de Magalhães Cabral Albuquerque E, Alexandre Beisl Vieira de Melo S, Costa Gaspar M, Maria Rodrigues Barbosa R, Elga Medeiros Braga M, Cipriano de Sousa H, Rocha Formiga F. New weapons against the disease vector Aedes aegypti: From natural products to nanoparticles. Int J Pharm 2023; 643:123221. [PMID: 37437857 DOI: 10.1016/j.ijpharm.2023.123221] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/27/2023] [Accepted: 07/08/2023] [Indexed: 07/14/2023]
Abstract
Despite the global burden of viral diseases transmitted by Aedes aegypti, there is a lack of effective means of prevention and treatment. Strategies for vector control include chemical and biological approaches such as organophosphates and Bacillus thuringiensis var. israelensis (Bti), among others. However, important concerns are associated, such as resistance in mosquito larvae and deleterious effects on non-target organisms. In this scenario, novel approaches against A. aegypti have been investigated, including natural products (e.g. vegetable oil and extracts) and nanostructured systems. This review focuses on potential strategies for fighting A. aegypti, highlighting plant-based materials and nanomaterials able to induce toxic effects on egg, larva, pupa and adult mosquitoes. Issues including aspects of conventional vector control strategies are presented, and finally new insights on development of eco-friendly nanoformulations against A. aegypti are discussed.
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Affiliation(s)
| | - Luíse Lopes Chaves
- Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ), 50670-420 Recife, PE, Brazil
| | - Vinícius Couto Pires
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil
| | - Júlia Soares Rodrigues
- Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ), 50670-420 Recife, PE, Brazil; Institute of Biological Sciences, University of Pernambuco (UPE), 50100-130 Recife, PE, Brazil
| | | | | | | | | | - Elaine Christine de Magalhães Cabral Albuquerque
- Industrial Engineering Program, Polytechnic School, Federal University of Bahia (UFBA), 40210-630 Salvador, BA, Brazil; Research Center in Energy and Environment (CIENAM), Federal University of Bahia (UFBA), 40170-115 Salvador, BA, Brazil
| | - Silvio Alexandre Beisl Vieira de Melo
- Industrial Engineering Program, Polytechnic School, Federal University of Bahia (UFBA), 40210-630 Salvador, BA, Brazil; Research Center in Energy and Environment (CIENAM), Federal University of Bahia (UFBA), 40170-115 Salvador, BA, Brazil
| | - Marisa Costa Gaspar
- CIEPQPF, Department of Chemical Engineering, FCTUC, University of Coimbra, 3030-790 Coimbra, Portugal
| | | | - Mara Elga Medeiros Braga
- CIEPQPF, Department of Chemical Engineering, FCTUC, University of Coimbra, 3030-790 Coimbra, Portugal
| | | | - Fabio Rocha Formiga
- Aggeu Magalhães Institute, Oswaldo Cruz Foundation (FIOCRUZ), 50670-420 Recife, PE, Brazil; Faculty of Medical Sciences, University of Pernambuco (UPE), 52171-011 Recife, PE, Brazil.
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Mostafiz MM, Ryu J, Akintola AA, Choi KS, Hwang UW, Hassan E, Lee KY. Larvicidal Activity of Methyl Benzoate, a Volatile Organic Compound, Against the Mosquitoes Aedes albopictus and Culex pipiens (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2022; 59:788-794. [PMID: 35043202 DOI: 10.1093/jme/tjab230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 06/14/2023]
Abstract
Methyl benzoate (MBe) is a volatile organic molecule found in various plants; it is used as an insect semiochemical. MBe also has a biorational insecticidal effect against various agricultural and urban arthropod pests. The present study was the first to assess the larvicidal potential of MBe against fourth-instar larvae of the mosquitoes Aedes albopictus (Skuse) and Culex pipiens (L.). A positive association was observed between MBe concentrations and larval mortality in both the species. The highest mortality recorded was 100% for Ae. albopictus and 56% for Cx. pipiens after 24 h of exposure to 200 ppm MBe. The lethal median concentration (LC50) values of MBe against fourth-instar larvae of Ae. albopictus and Cx. pipiens were 61 ppm and 185 ppm, respectively. These results suggest that MBe has great potential for use as an environmentally friendly larvicidal agent for mosquito control.
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Affiliation(s)
- Md Munir Mostafiz
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
| | - Jihun Ryu
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, Korea
| | | | - Kwang Shik Choi
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, Korea
- Research Institute for Dok-do and Ulleung-do Island, Kyungpook National University, Daegu, Korea
| | - Ui Wook Hwang
- Biomedical Convergence Science and Technology, Kyungpook National University, Daegu, Korea
| | - Errol Hassan
- School of Agriculture and Food Sciences, The University of Queensland Gatton, Queensland, Australia
| | - Kyeong-Yeoll Lee
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
- Research Institute for Dok-do and Ulleung-do Island, Kyungpook National University, Daegu, Korea
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Sugauara EYY, Sugauara E, Sugauara RR, Bortolucci WDC, Fernandez CMM, Gonçalves JE, Colauto NB, Gazim ZC, Linde GA. Larvicidal activity of Brunfelsia uniflora extracts on Aedes aegypti larvae. Nat Prod Res 2022; 36:1031-1037. [DOI: 10.1080/14786419.2020.1844685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - ElisângelaYumi Sugauara
- Graduate Program in Biotechnology Applied to Agriculture, Paranaense University, Umuarama, Brazil
| | - Rosângela Rumi Sugauara
- Graduate Program in Biotechnology Applied to Agriculture, Paranaense University, Umuarama, Brazil
| | | | | | - José Eduardo Gonçalves
- Graduate Programs in Clean Technologies, UniCesumar, Maringá, Maringá,Brazil
- Cesumar Institute of Science, Technology and Innovation – ICET, UniCesumar, UniCesumar, Maringá, Maringá,Brazil
| | - Nelson Barros Colauto
- Graduate Program in Biotechnology Applied to Agriculture, Paranaense University, Umuarama, Brazil
| | - Zilda Cristiani Gazim
- Graduate Program in Biotechnology Applied to Agriculture, Paranaense University, Umuarama, Brazil
| | - Giani Andrea Linde
- Graduate Program in Biotechnology Applied to Agriculture, Paranaense University, Umuarama, Brazil
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Roshan AB, Venkatesh HN, Dubey NK, Mohana DC. Chitosan-based nanoencapsulation of Toddalia asiatica (L.) Lam. essential oil to enhance antifungal and aflatoxin B 1 inhibitory activities for safe storage of maize. Int J Biol Macromol 2022; 204:476-484. [PMID: 35151710 DOI: 10.1016/j.ijbiomac.2022.02.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/29/2022] [Accepted: 02/07/2022] [Indexed: 12/28/2022]
Abstract
The present study reports the enhanced antifungal, aflatoxin B1 (AFB1) inhibitory activities and mode of action of chitosan-based nanoencapsulated Toddalia asiatica essential oil (neTAEO). Twenty-seven different chemical components were recognized from T. asiatica essential oil (TAEO) using gas chromatography-mass spectrometry (GC-MS). The caryophyllene oxide (CO) (25.4%), and 1,3-hexadiene, 3-ethyl-2,5-dimethyl- (HED) (24.08%) were documented as significant compounds. The Z-average particles diameter (Z-APD) of the neTAEO ranged between 18.41 and 131.8 nm. The neTAEO showed enhanced and most promising antifungal and AFB1 inhibitory activity than TAEO. In viable maize model assay, neTAEO effectively preserved the maize from fungal invade and AFB1 biosynthesis. The neTAEO significantly disturbs membrane integrities of Aspergillus flavus by inhibiting ergosterol biosynthesis followed by the extreme release of ions (Mg2+ and K+) and UV-absorbing (260 and 280 nm) cellular constituents. The in-silico molecular docking showed that the major active components of TAEO viz., CO and HED were active against AFB1 synthesizing leading genes Ver-1 and Omt-A with docking scores ranging from -4.8 to -7.7. The obtained results confirm that neTAEO showed promising antifungal and AFB1 inhibitory activities; hence, it could be used as an alternative green strategy to protect food grains from fungal invade and AFB1 production during storage.
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Affiliation(s)
- Akbar Basha Roshan
- Department of Microbiology and Biotechnology, Bangalore University, Jnana Bharathi, Bengaluru 560 056, India
| | - Hosur Narayanappa Venkatesh
- Department of Microbiology and Biotechnology, Bangalore University, Jnana Bharathi, Bengaluru 560 056, India
| | - Nawal Kishore Dubey
- Laboratory of Herbal Pesticides, Centre of Advanced Study (CAS) in Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Devihalli Chikkaiah Mohana
- Department of Microbiology and Biotechnology, Bangalore University, Jnana Bharathi, Bengaluru 560 056, India.
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A systematic review on traditional medicine Toddalia asiatica (L.) Lam.: Chemistry and medicinal potential. Saudi Pharm J 2021; 29:781-798. [PMID: 34408540 PMCID: PMC8360773 DOI: 10.1016/j.jsps.2021.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/11/2021] [Indexed: 11/23/2022] Open
Abstract
Toddalia asiatica (L.) Lam., belonging to Toddalia genus of Rutaceae family, is a folk medicine in China used for hundreds of years. The whole plant can be used as medicine, especially the root that used to be applied in the folk. In recent decades, with the in-depth research from domestic and foreign researchers, it has gradually been discovered that the chemical components in T. asiatica are mainly coumarins and alkaloids. Its pharmacological effects are manifested in anti-inflammatory and analgesic, hemostatic coagulation, anti-tumor, treatment of cardiovascular diseases, etc. It has a wide range of clinical applications and significant effects on rheumatism, pain, wound bleeding, and bruises. Due to its important research value, in this article, the chemical compositions and pharmacological effects of T. asiatica are comprehensively expounded in recent years in order to provide a reference for the related research and application of this medicinal material, which were carried out through a bibliometric search using the Science Citation Index- Expanded (SCIE) database, web of science, Google scholar and Chinese National Knowledge Infrastructure (CNKI) and all that.
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Lobine D, Pairyanen B, Zengin G, Yılmaz MA, Ouelbani R, Bensari S, Ak G, Abdallah HH, Imran M, Mahomoodally MF. Chemical Composition and Pharmacological Evaluation and of Toddalia asiatica (Rutaceae) Extracts and Essential Oil by in Vitro and in Silico Approaches. Chem Biodivers 2021; 18:e2000999. [PMID: 33738900 DOI: 10.1002/cbdv.202000999] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 02/15/2021] [Indexed: 12/24/2022]
Abstract
Toddalia asiatica (L.) Lam. is extensively used in traditional medicinal systems by various cultures. Despite its frequent use in traditional medicine, there is still a paucity of scientific information on T. asiatica growing on the tropical island of Mauritius. Therefore, the present study was designed to appraise the pharmacological and phytochemical profile of extracts (methanol, ethyl acetate and water) and essential oil obtained from aerial parts of T. asiatica. Biological investigation involved the evaluation of in vitro antioxidant and enzyme inhibitory potentials. The chemical profile of the EO was determined using gas chromatography coupled to mass spectrometry (GC/MS) analysis, while for the extracts, the total phenolic (TPC) and flavonoid content were quantified as well as their individual phenolic compounds by LC/MS/MS. Quinic acid, fumaric acid, chlorogenic acid, quercitrin and isoquercitrin were the main compounds in the extracts. Highest total phenolic (82.5±0.94 mg gallic acid equivalent (GAE/g)) and flavonoid (43.8±0.31 mg rutin equivalent (RE/g)) content were observed for the methanol extract. The GC/MS analysis has shown the presence of 26 compounds with linalool (30.9 %), linalyl acetate (20.9 %) and β-phellandrene (7.9 %) being most abundant components in the EO. The extracts and EO showed notable antioxidant properties, with the methanol extract proved to be superior source of antioxidant compounds. Noteworthy anti-acetylcholinesterase (AChE) and anti-butyrylcholinesterase (BChE) effects were recorded for the tested samples, while only the methanol and ethyl acetate extracts were active against tyrosinase. With respect to antidiabetic effects, the extracts and EO were potent inhibitors of α-glucosidase, while modest activity was recorded against α-amylase. Docking results showed that linalyl acetate has the highest affinity to interact with the active site of BChE with docking score of -6.25 kcal/mol. The findings amassed herein act as a stimulus for further investigations of this plant as a potential source of bioactive compounds which can be exploited as phyto-therapeutics.
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Affiliation(s)
- Devina Lobine
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Moka, Réduit, 80837, Mauritius
| | - Bryan Pairyanen
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Moka, Réduit, 80837, Mauritius.,Department of Agricultural and Food Sciences, Faculty of Agriculture, University of Mauritius, Moka, Réduit, 80837, Mauritius
| | - Gokhan Zengin
- Physiology and Biochemistry Research Laboratory, Department of Biology, Faculty of Science, Selcuk University, Konya, 42130, Turkey
| | - Mustafa Abdullah Yılmaz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakır, 21280, Turkey
| | - Rayene Ouelbani
- Laboratoire de Génétique, Biochimie et Biotechnologies Végétales GBBV, Faculté des Sciences de la nature et de la vie, Université Frères Mentouri Constantine1, Route d'Aïn El Bey, 25017, Constantine, Algérie
| | - Souheir Bensari
- Laboratoire de Génétique, Biochimie et Biotechnologies Végétales GBBV, Faculté des Sciences de la nature et de la vie, Université Frères Mentouri Constantine1, Route d'Aïn El Bey, 25017, Constantine, Algérie
| | - Gunes Ak
- Physiology and Biochemistry Research Laboratory, Department of Biology, Faculty of Science, Selcuk University, Konya, 42130, Turkey
| | - Hassan H Abdallah
- Chemistry Department, College of Education, Salahaddin University-Erbril, 44002, Erbil, Iraq
| | - Muhammad Imran
- University Institute of Diet and Nutritional Sciences, Faculty of Allied Health Sciences, The University of Lahore, Lahore, 54590, Pakistan
| | - Mohamad Fawzi Mahomoodally
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Moka, Réduit, 80837, Mauritius
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Ferreira RM, Duarte JL, Cruz RA, Oliveira AE, Araújo RS, Carvalho JC, Mourão RH, Souto RN, Fernandes CP. A herbal oil in water nano-emulsion prepared through an ecofriendly approach affects two tropical disease vectors. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2019. [DOI: 10.1016/j.bjp.2019.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Osanloo M, Sedaghat MM, Sanei-Dehkordi A, Amani A. Plant-Derived Essential Oils; Their Larvicidal Properties and Potential Application for Control of Mosquito-Borne Diseases. Galen Med J 2019; 8:e1532. [PMID: 34466524 PMCID: PMC8344124 DOI: 10.31661/gmj.v8i0.1532] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/05/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022] Open
Abstract
Mosquito-borne diseases are currently considered as important threats to human health in subtropical and tropical regions. Resistance to synthetic larvicides in different species of mosquitoes, as well as environmental pollution, are the most common adverse effects of excessive use of such agents. Plant-derived essential oils (EOs) with various chemical entities have a lower chance of developing resistance. So far, no proper classification based on lethal concentration at 50% (LC50) has been made for the larvicidal activity of EOs against different species of Aedes, Anopheles and Culex mosquitoes. To better understand the problem, a summary of the most common mosquito-borne diseases have been made. Related articles were gathered, and required information such as scientific name, used part(s) of plant, target species and LC50 values were extracted. 411 LC50 values were found about the larvicidal activity of EOs against different species of mosquitoes. Depending on the obtained results in each species, LC50 values were summarized as follows: 24 EOs with LC50 < 10 µg/mL, 149 EOs with LC50 in range of 10- 50 µg/mL, 143 EOs having LC50 within 50- 100 µg/mL and 95 EOs showing LC50 > 100 µg/mL. EOs of Callitris glaucophylla and Piper betle against Ae. aegypti, Tagetes minuta against An. gambiae, and Cananga odorata against Cx. quinquefasciatus and An. dirus having LC50 of ~ 1 µg/mL were potentially comparable to synthetic larvicides. It appears that these plants could be considered as candidates for botanical larvicides.
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Affiliation(s)
- Mahmoud Osanloo
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Mohammad Mehdi Sedaghat
- Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Sanei-Dehkordi
- Department of Medical Entomology and Vector Control, School of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amir Amani
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
- Medical Biomaterials Research Center (MBRC), Tehran University of Medical Sciences, Tehran, Iran
- Correspondence to: Amir Amani, Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran Telephone Number: 00982143052130 Email Address:
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He N, Wang P, Wang P, Ma C, Kang W. Antibacterial mechanism of chelerythrine isolated from root of Toddalia asiatica (Linn) Lam. Altern Ther Health Med 2018; 18:261. [PMID: 30257662 PMCID: PMC6158911 DOI: 10.1186/s12906-018-2317-3] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 08/30/2018] [Indexed: 11/10/2022]
Abstract
Background Antimicrobial resistance was one of serious worldwide problems confused many researchers. To solve this problem, we explored the antibacterial effect of chelerythrine, a natural compound from traditional Chinese medicine and studied its action. Methods The contents of chelerythrine from different fractions of Toddalia asiatica (Linn) Lam (T. asiatica) were determined. The anti-bacterial activities of chelerythrine were tested by disc diffusion method (K-B method). Scanning electron microscopy (SEM), alkaline phosphatase (AKP), bacterial extracellular protein leakage and SDS-PAGE analysis were also used to investigate the antibacterial mechanism of chelerythrine. Results Analytic results of High Performance Liquid Chromatography showed that the content of chelerythrine (1.97 mg/g) in the ethyl acetate fraction was the highest, followed by those of methanol fraction and petroleum ether fraction. The in vitro anti-bacterial mechanisms of chelerythrine from T. asiatica were assessed. Chelerythrine showed strong antibacterial activities against Gram-positive bacteria, Staphylococcus aureus (SA), Methicillin-resistant S. aureus (MRSA), and extended spectrum β-lactamase S. aureus (ESBLs-SA). The minimum inhibitory concentrations (MICs) of chelerythrine on three bacteria were all 0.156 mg/mL. Furthermore, results suggested that the primary anti-bacterial mechanism of chelerythrine may be attributed to its destruction of the channels across the bacterial cell membranes, causing protein leakage to the outside of the cell, and to its inhibition on protein biosynthesis. Images of scanning electron microscope revealed severe morphological changes in chelerythrine-treated bacteria except control, damage of parts of the cell wall and cell membrane as well as the leakage of some substances. Conclusions Chelerythrine isolated from root of Toddalia asiatica (Linn) Lam possesses antibacterial activities through destruction of bacterial cell wall and cell membrance and inhibition of protein biosynthesis.
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Rajeswary M, Govindarajan M, Alharbi NS, Kadaikunnan S, Khaled JM, Benelli G. Zingiber cernuum (Zingiberaceae) essential oil as effective larvicide and oviposition deterrent on six mosquito vectors, with little non-target toxicity on four aquatic mosquito predators. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10307-10316. [PMID: 28497331 DOI: 10.1007/s11356-017-9093-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Mosquitoes are responsible for the transmission of many pathogens and parasites, which cause serious diseases in humans and animals. Currently, botanical products have been suggested as alternative tools in the fight against arthropod vectors. In this study, the essential oil (EO) extracted from Zingiber cernuum was tested as larvicide and oviposition deterrent on six mosquito species of public health relevance, including malaria and Zika virus vectors. The EO showed high toxicity on third instar larvae of Anopheles stephensi (LC50 = 41.34 μg/ml), Aedes aegypti (LC50 = 44.88 μg/ml), Culex quinquefasciatus (LC50 = 48.44 μg/ml), Anopheles subpictus (LC50 = 51.42 μg/ml), Aedes albopictus (LC50 = 55.84 μg/ml), and Culex tritaeniorhynchus (LC50 = 60.20 μg/ml). In addition, low doses of Z. cernuum EO reduced oviposition rates in six mosquito species. The acute toxicity of Z. cernuum EO on four mosquito predators was scarce; LC50 ranged from 3119 to 11,233 μg/ml. Overall, our results revealed that the Z. cernuum EO can be considered for the development of effective and environmental-friendly mosquito larvicides and oviposition deterrents.
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Affiliation(s)
- Mohan Rajeswary
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, Tamil Nadu, 608002, India
| | - Marimuthu Govindarajan
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, Tamil Nadu, 608002, India.
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Shine Kadaikunnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124, Pisa, Italy.
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Govindarajan M, Vaseeharan B, Alharbi NS, Kadaikunnan S, Khaled JM, Al-Anbr MN, Alyahya SA, Maggi F, Benelli G. High efficacy of (Z)-γ-bisabolene from the essential oil of Galinsoga parviflora (Asteraceae) as larvicide and oviposition deterrent against six mosquito vectors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10555-10566. [PMID: 29372518 DOI: 10.1007/s11356-018-1203-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 01/02/2018] [Indexed: 06/07/2023]
Abstract
The eco-friendly management of mosquitoes with novel and effective larvicides and oviposition deterrents is a crucial challenge to prevent outbreaks of mosquito-borne diseases. However, most of the herbal formulations tested in these years showed LC50 values higher of 40 ppm, and significant oviposition deterrent activity only when tested at relatively higher doses (> 50 μg/ml). Herein, we studied the chemical composition of the Galinsoga parviflora essential oil (EO). This plant is an annual herb native to South America naturalized all over the world. We tested the EO larvicidal and oviposition deterrent action on 6 mosquito species. Totally 37 compounds were identified in the EO of G. parviflora by GC and GC-MS analyses. The major constituent was (Z)-γ-bisabolene (38.9%). The G. parviflora EO and (Z)-γ-bisabolene showed acute toxicity on An. stephensi (LC50 = 31.04 and 2.04 μg/ml, respectively), Ae. aegypti (LC50 = 34.22 and 2.26 μg/ml, respectively), Cx. quinquefasciatus (LC50 = 37.10 and 2.47 μg/ml, respectively), An. subpictus (LC50 = 40.97 and 4.09 μg/ml, respectively), Ae. albopictus (LC50 = 45.55 and 4.50 μg/ml, respectively) and Cx. tritaeniorhynchus (LC50 = 49.56 and 4.87 μg/ml, respectively) larvae. Furthermore, the oviposition deterrent potential of the G. parviflora EO and (Z)-γ-bisabolene was studied on six mosquito vectors, showing that 25 μg/ml of (Z)-γ-bisabolene led to an Oviposition Activity Index lower of - 0.79 in all tested mosquito vectors. Overall, all larvicidal LC50 values estimated for (Z)-γ-bisabolene were lower than 5 μg/ml. This result far encompasses current evidences of toxicity reported for the large majority of botanical products currently tested against mosquito young instars, allowing us to propose this compound as an highly effective mosquito larvicide and oviposition deterrent.
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Affiliation(s)
- Marimuthu Govindarajan
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar, Tamil Nadu, 608 002, India.
| | - Baskaralingam Vaseeharan
- Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630004, India
| | - Naiyf S Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Shine Kadaikunnan
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Jamal M Khaled
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohammed N Al-Anbr
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Sami A Alyahya
- National Center for Biotechnology, King Abdulaziz City for Science and Technology, Riyadh, 11442, Saudi Arabia
| | - Filippo Maggi
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032, Camerino, Italy
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124, Pisa, Italy.
- The BioRobotics Institute, Sant'Anna School of Advanced Studies, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy.
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Toxicity of β-citronellol, geraniol and linalool from Pelargonium roseum essential oil against the West Nile and filariasis vector Culex pipiens (Diptera: Culicidae). Res Vet Sci 2017; 114:36-40. [DOI: 10.1016/j.rvsc.2017.03.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 02/17/2017] [Accepted: 03/04/2017] [Indexed: 12/12/2022]
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Gnankiné O, Bassolé IHN. Essential Oils as an Alternative to Pyrethroids' Resistance against Anopheles Species Complex Giles (Diptera: Culicidae). Molecules 2017; 22:E1321. [PMID: 28937642 PMCID: PMC6151604 DOI: 10.3390/molecules22101321] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/01/2017] [Accepted: 08/01/2017] [Indexed: 11/16/2022] Open
Abstract
Widespread resistance of Anopheles sp. populations to pyrethroid insecticides has led to the search for sustainable alternatives in the plant kingdom. Among many botanicals, there is great interest in essential oils and their constituents. Many researchers have explored essential oils (EOs) to determine their toxicity and identify repellent molecules that are effective against Anopheles populations. Essential oils are volatile and fragrant substances with an oily consistency typically produced by plants. They contain a variety of volatile molecules such as terpenes and terpenoids, phenol-derived aromatic components and aliphatic components at quite different concentrations with a significant insecticide potential, essentially as ovicidal, larvicidal, adulticidal, repellency, antifeedant, growth and reproduction inhibitors. The current review provides a summary of chemical composition of EOs, their toxicity at different developmental stages (eggs, larvae and adults), their repellent effects against Anopheles populations, for which there is little information available until now. An overview of antagonist and synergistic phenomena between secondary metabolites, the mode of action as well as microencapsulation technologies are also given in this review. Finally, the potential use of EOs as an alternative to current insecticides has been discussed.
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Affiliation(s)
- Olivier Gnankiné
- Laboratoire d'entomologie fondamentale et appliquée (Lefa), Université Ouaga I Pr Joseph KI-ZERBO, 03 P.O. 7021 Ouagadougou, Burkina Faso.
| | - Imaël Henri Nestor Bassolé
- Laboratoire de biologie moléculaire, d'épidémiologie et de surveillance des bactéries et virus transmis par les aliments (Labesta), Université Ouaga I Pr Joseph KI-ZERBO, 03 P.O. 7021 Ouagadougou, Burkina Faso.
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15
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Werdin González JO, Jesser EN, Yeguerman CA, Ferrero AA, Fernández Band B. Polymer nanoparticles containing essential oils: new options for mosquito control. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:17006-17015. [PMID: 28580545 DOI: 10.1007/s11356-017-9327-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/19/2017] [Indexed: 06/07/2023]
Abstract
Mosquitoes (Diptera: Culicidae) are vectors of important parasites and pathogens causing death, poverty and social disability worldwide. The overuse of synthetic insecticides to control mosquito vectors lead to resistance, adverse environmental effects and high operational costs. Therefore, the development of eco-friendly control tools is an important public health challenge. In this study, two different essential oils (EO) (geranium, Geranium maculatum, and bergamot, Citrus bergamia) loaded polymeric nanoparticle (PN) were elaborated using polyethylene glycol (PEG) and chitosan (Qx) as the polymeric matrix/coating. In addition, the mosquito larvicidal acute and residual activity of the PN was evaluated on Culex pipiens pipiens. The physicochemical characterization of PN revealed that PEG-PN had sizes <255 nm and encapsulation efficiency between 68 and 77%; Qx-PN showed sizes <535 nm and encapsulation efficiency between 22 and 38%. From the toxicological test, it was observed that Qx-PN produced higher acute and residual activity than PEG-PN. Overall, this study highlights that polymer nanoparticles containing essential oil are a promising source of eco-friendly mosquito larvicidal products.
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Affiliation(s)
- Jorge Omar Werdin González
- FIA Laboratory, Analytical Chemistry Section, INQUISUR-CONICET, Universidad Nacional del Sur, Av. Alem 1253 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina.
- Laboratorio de Zoología de Invertebrados II, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina.
| | - Emiliano Nicolás Jesser
- Laboratorio de Zoología de Invertebrados II, INBIOSUR-CONICET, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
| | - Cristhian Alan Yeguerman
- Laboratorio de Zoología de Invertebrados II, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
| | - Adriana Alicia Ferrero
- Laboratorio de Zoología de Invertebrados II, INBIOSUR-CONICET, San Juan 670 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
| | - Beatriz Fernández Band
- FIA Laboratory, Analytical Chemistry Section, INQUISUR-CONICET, Universidad Nacional del Sur, Av. Alem 1253 (B8000CPB), Bahía Blanca, Buenos Aires, Argentina
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Bellili S, Jazi S, Hrira MY, Lamari A, Dhifi W, Diouani MF, Araújo ME, Cioni PL, Flamini G, Cherif A, Mnif W. Phytochemical identification of volatile fraction, essential oil and screening of antioxidant, antibacterial, allelopathic and insecticidal potential from Artemisia herba-alba leaves. MAIN GROUP CHEMISTRY 2017. [DOI: 10.3233/mgc-170229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Sana Bellili
- University Manouba, ISBST, BVBGR-LR11ES31, Biotechpole Sidi Thabet, Ariana, Tunisia
- Faculty of Sciences of Bizerte, Jarzouna – Bizerte, University of Carthage, Tunisia
| | - Sabrine Jazi
- University Manouba, ISBST, BVBGR-LR11ES31, Biotechpole Sidi Thabet, Ariana, Tunisia
- Faculty of Sciences of Bizerte, Jarzouna – Bizerte, University of Carthage, Tunisia
| | - Mohamed Yahya Hrira
- UR 07/06, Laboratoire de Biochimie, Faculté de Pharmacie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Ali Lamari
- Laboratoire de Génétique, Faculté de Médecine de Monastir, Université de Monastir, Monastir, Tunisie
| | - Wissal Dhifi
- UR Ecophysiologie Environnementale et Procédés Agroalimentaires, Institut Supérieur de Biotechnologie de Sidi Thabet, BiotechPole de Sidi Thabet, Université de la Manouba, Tunisie
| | - Mohamed Fethi Diouani
- LR11-IPT03 Epidémiologie et de Microbiologie Vétérinaire, Institut Pasteur de Tunis 13 Place Pasteur, Tunis Belvédère, Tunisie
| | - Maria Eduarda Araújo
- Departamento de Química e Bioquímica Faculdade de Ciências da Universidade de Lisboa Campo Grande, Lisboa, Portugal
| | - Pier Luigi Cioni
- Department of Pharmaceutical Sciences, Bioorganic Chemistry and Biopharmaceutics University of Pisa, Pisa, Italy
| | - Guido Flamini
- Department of Pharmaceutical Sciences, Bioorganic Chemistry and Biopharmaceutics University of Pisa, Pisa, Italy
| | - Ameur Cherif
- University Manouba, ISBST, BVBGR-LR11ES31, Biotechpole Sidi Thabet, Ariana, Tunisia
| | - Wissem Mnif
- Faculty of Sciences and Arts in Balgarn, Balgarn- Sabt Al Alaya, Bisha University, Saudi Arabia
- University Manouba, ISBST, BVBGR-LR11ES31, Biotechpole Sidi Thabet, Ariana, Tunisia
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17
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Zhao MP, Liu QZ, Liu Q, Liu ZL. Identification of Larvicidal Constituents of the Essential Oil of Echinops grijsii Roots against the Three Species of Mosquitoes. Molecules 2017; 22:molecules22020205. [PMID: 28134799 PMCID: PMC6155871 DOI: 10.3390/molecules22020205] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 01/20/2017] [Indexed: 11/16/2022] Open
Abstract
The screening of Chinese medicinal herbs for insecticidal principles showed that the essential oil of Echinops grijsii Hance roots possessed significant larvicidal activity against mosquitoes. The essential oil was extracted via hydrodistillation and its constituents were determined by gas chromatography-mass spectrometry (GC-MS) analysis. GC-MS analyses revealed the presence of 31 components, with 5-(3-buten-1-yn-1-yl)-2,2'-bithiophene (5-BBT, 27.63%), αterthienyl (α-T, 14.95%),1,8-cineole (5.56%) and cis-β-ocimene (5.01%) being the four major constituents. Based bioactivity-directed chromatographic separation of the essential oil led to the isolation of 5-BBT, 5-(4-isovaleroyloxybut-1-ynyl)-2,2'-bithiophene (5-IBT) and αT as active compounds. The essential oil of E. grijsii exhibited larvicidal activity against the fourth instar larvae of Aedes albopictus, Anopheles sinensis and Culex pipiens pallens with LC50 values of 2.65 μg/mL, 3.43 μg/mL and 1.47 μg/mL, respectively. The isolated thiophenes, 5-BBT and 5-IBT, possessed strong larvicidal activity against the fourth instar larvae of Ae. albopictus(LC50 = 0.34 μg/mL and 0.45 μg/mL, respectively) and An. sinensis(LC50 = 1.36 μg/mL and 5.36 μg/mL, respectively). The two isolated thiophenes also had LC50 values against the fourth instar larvae of C. pipiens pallens of 0.12 μg/mL and 0.33 μg/mL, respectively. The findings indicated that the essential oil of E. grijsii roots and the isolated thiophenes have an excellent potential for use in the control of Ae.albopictus, An. sinensis and C. pipiens pallens larvae and could be used in the search for new, safer and more effective natural compounds as larvicides.
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Affiliation(s)
- Mei Ping Zhao
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China.
| | - Qi Zhi Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China.
| | - Qiyong Liu
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center of Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
| | - Zhi Long Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China.
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Tian J, Liu XC, Liu ZL, Lai D, Zhou L. Larvicidal spirobisnaphthalenes from the endophytic fungus Berkleasmium sp. against Aedes albopictus. PEST MANAGEMENT SCIENCE 2016; 72:961-965. [PMID: 26171851 DOI: 10.1002/ps.4075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/23/2015] [Accepted: 07/06/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND In our screening programme for new agrochemicals from endophytic fungi, the ethyl acetate extract of an endophytic Berkleasmium sp. isolated from the medicinal plant Dioscorea zingiberensis was found to possess strong larvicidal activity against the Asian tiger mosquito, Aedes albopictus. RESULTS Bioassay-guided fractionation of the fungal extract has led to the isolation of seven spirobisnaphthalenes, including palmarumycins C8, C12, C15 and B6 and diepoxins γ, δ and ζ. Among them, palmarumycins C8 and B6 showed strong larvicidal activity against the fourth-instar larvae of A. albopictus, with LC50 values of 8.83 and 11.51 µg mL(-1) respectively. Interestingly, only spirobisnaphthalenes with a chlorine substituent possessed strong larvicidal activity. CONCLUSION The results indicated that the spirobisnaphthalenes derived from the endophytic fungus Berkleasmium sp. could be promising leads for the development of new larvicides against A. albopictus.
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Affiliation(s)
- Jin Tian
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Xin Chao Liu
- Department of Entomology, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Zhi Long Liu
- Department of Entomology, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Daowan Lai
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Ligang Zhou
- MOA Key Laboratory of Plant Pathology, Department of Plant Pathology, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
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20
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Sina I, . Z, Sabri MSM. Larvicidal Activities of Extract Flower Averrhoa bilimbi L. Towards Important Species Mosquito, Anopheles barbirostris (Diptera: Culicidae). ACTA ACUST UNITED AC 2015. [DOI: 10.3923/ijzr.2016.25.31] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Liu XC, Liu Q, Chen XB, Zhou L, Liu ZL. Larvicidal activity of the essential oil from Tetradium glabrifolium fruits and its constituents against Aedes albopictus. PEST MANAGEMENT SCIENCE 2015; 71:1582-1586. [PMID: 25504672 DOI: 10.1002/ps.3964] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 11/28/2014] [Accepted: 12/04/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND In our screening programme for new agrochemicals from wild plants, the essential oil of Tetradium glabrifolium (Champ. ex Benth.) T.G. Hartley fruits was found to possess strong larvicidal activity against the Asian tiger mosquito, Aedes albopictus L. The essential oil was extracted via hydrodistillation, and the constituents were determined by GC-MS analysis. The active compounds were isolated and identified by bioassay-directed fractionation. RESULTS GC-MS analyses revealed the presence of 19 components with 2-tridecanone (43.38%), 2-undecanone (24.09%), D-limonene (13.01%), caryophyllene (5.04%) and β-elemene (4.07%) being the major constituents. Bioactivity-directed chromatographic separation of the oil led to the isolation of 2-tridecanone, 2-undecanone and D-limonene as active compounds. The essential oil of T. glabrifolium exhibited larvicidal activity against the early fourth-instar larvae of A. albopictus, with an LC50 value of 8.20 µg mL(-1). The isolated constituent compounds, 2-tridecanone, 2-undecanone and D-limonene, possessed strong larvicidal activity against the early fourth-instar larvae of A. albopictus, with LC50 values of 2.86, 9.95 and 41.75 µg mL(-1) respectively. CONCLUSION The findings indicated that the essential oil of T. glabrifolium fruits and the three constituents have an excellent potential for use in control of A. albopictus larvae and could be useful in the search for newer, safer and more effective natural compounds as larvicides.
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Affiliation(s)
- Xin Chao Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing, China
| | - Qiyong Liu
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China
| | - Xu Bo Chen
- College of Ecology, Lishui University, Zhejiang Province, China
| | - Ligang Zhou
- Department of Plant Pathology, China Agricultural University, Haidian District, Beijing, China
| | - Zhi Long Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing, China
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Jeon JH, Kim MG, Lee HS. Larvicidal activity of naturally occurring naphthalenedione and its structurally related analogs against three mosquito species. JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION 2015; 31:71-76. [PMID: 25843178 DOI: 10.2987/14-6438.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The objective of this study was to determine the larvicidal activity of an active compound isolated from Cercis chinensis heartwood and its structurally related analogs against 4th-stage Aedes aegypti, Culex pipiens pallens, and Ae. togoi. The larvicidal compound of C. chinensis was isolated with the use of various chromatographic techniques and identified as analogs of 1,4-naphthalenedione. Based on the median lethal concentration (LC(50)) values of commercially procured analogs against Ae. aegypti larvae, the most toxic analog was 2-bromo-1,4-naphthalenedione (1.19 µg/ml); followed by 5-hydroxy-1,4-naphthalenedione (1.72 µg/ml); 2-methyl-1,4-naphthalenedione (9.12 µg/ml); 2-hydroxy-1,4-naphthalenedione (10.76 µg/ml); and 2-methoxy-1,4-naphthalenedione (12.50 µg/ml). Similar results were observed against Cx. p. pallens and Ae. togoi larvae with 1,4-naphthalenedione analogs. These results also showed that 1,4-naphthalenedione analogs were less toxic than the organophosphate pirimiphos-methyl. Nonetheless, naturally occurring C. chinensis-derived materials and 1,4-naphthalenedione analogs have potential for development as mosquito larvicidal agents.
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Affiliation(s)
- Ju-Hyun Jeon
- Department of Bioenvironmental Chemistry, College of Agriculture and Life Sciences, Chonbuk National University, Jeonju 561-756, Republic of Korea
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Zhang WJ, Yang K, You CX, Wang Y, Wang CF, Wu Y, Geng ZF, Su Y, Du SS, Deng ZW. Bioactivity of essential oil from Artemisia stolonifera (Maxim.) Komar. and its main compounds against two stored-product insects. J Oleo Sci 2015; 64:299-307. [PMID: 25757434 DOI: 10.5650/jos.ess14187] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Artemisia stolonifera, a perennial herb, is widely distrbuted in China. The aim of this study was to analyze the essential oil from the aerial parts of Artemisia stolonifera, as well as to evaluate the bioactivity of the oil and its main constituents. The essential oil was analyzed by gas chromatography-flame ionization detector and gas chromatography-mass spectrometry that allowed characterizing 22 compounds. The main components were eucalyptol (32.93%), β-pinene (8.18%), camphor (6.12%) and terpinen-4-ol (6.11%), and obtained from the essential oil after a further isolation. During the contact toxicity tests, the essential oil (LD50 = 8.60 μg/adult) exhibited stronger toxicity against Tribolium castaneum adults than those isolated constituents, however, camphor and terpinen-4-ol showed 1 and 2 times toxicity against Lasioderma serricorne adults than the essential oil (LD50 = 12.68 μg/adult) with LD50 values of 11.30 and 5.42 μg/adult, respectively. In the fumigant toxicity tests, especially on Tribolium castaneum, the essential oil (LC50 = 1.86 mg/L air) showed almost the same level toxicity as positive control, methyl bromide (LC50 = 1.75 mg/L air). Moreover, the essential oil and its four isolated constituents also exhibited strong repellency against two stored-product insects.
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Affiliation(s)
- Wen-Juan Zhang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University
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Yogananth N, Anuradha V, Syed Ali MY, Muthezhilan R, Chanthuru A, Prabu MM. Chemical properties of essential oil from Rhizophora mucronata mangrove leaf against malarial mosquito Anopheles stephensi and filarial mosquito Culex quinquefasciatus. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(15)60859-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kumar S, Mishra M, Wahab N, Warikoo R. Larvicidal, Repellent, and Irritant Potential of the Seed-Derived Essential oil of Apium graveolens Against Dengue Vector, Aedes aegypti L. (Diptera: Culicidae). Front Public Health 2014; 2:147. [PMID: 25279371 PMCID: PMC4166952 DOI: 10.3389/fpubh.2014.00147] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 09/02/2014] [Indexed: 11/13/2022] Open
Abstract
Aedes aegypti L. is one of the primary disease vectors spreading various dreadful diseases throughout the world, specifically over tropics and subtropics. Keeping in view the adverse effects of chemical insecticides-based intervention measures, the eco-friendly and bio-degradable essential oil extracted from the seeds of celery, Apium graveolens were investigated for its efficacy against Ae. aegypti. Larvicidal bioassay carried out with the seed oil against early fourth instars of Ae. aegypti caused an LC50 and LC90 values of 16.10 and 29.08 ppm, respectively, after an exposure to 24 h. The cidal effect of the celery seed oil augmented by 1.2-fold; after an exposure to 48 h; revealing an LC50 value of 13.22 ppm. Interestingly, the seed oil did not cause immediate larval mortality, suggesting a delayed toxicity against the larval stage. Present investigations also revealed remarkable effective repellency of the oil leading to 100% protection till 165 min as compared to control that did not result in any repellency against adult Ae. aegypti. Interestingly, only one bite was recorded in the 165th-min after which only two bites were scored until 180 min of exposure of the adult mosquitoes to the oil. An exciting observation was that the knocked-down effect in adults exposed to 10% oil-impregnated papers. The contact irritancy assays with paper impregnated with 1% celery seed oil caused first flight only after 4 s resulting in an average of 63.66 flights during 15 min of exposure revealing the relative irritability of 26.97. The qualitative phytochemical analysis of the seed oil showed the presence of flavonoids, lactones, and terpenoids as the major constituents suggesting their probable role in the toxicity. Our results confirmed that celery seed essential oil can be used as an efficient larvicide and repellent against Ae. aegypti. The identification of the bioactive components, their mode of action, and studying effects on non-target organisms and the environment would help in devising mosquito-management strategies.
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Affiliation(s)
- Sarita Kumar
- Department of Zoology, Acharya Narendra Dev College, University of Delhi , New Delhi , India
| | - Monika Mishra
- Department of Zoology, Acharya Narendra Dev College, University of Delhi , New Delhi , India
| | - Naim Wahab
- Department of Zoology, Acharya Narendra Dev College, University of Delhi , New Delhi , India
| | - Radhika Warikoo
- Department of Zoology, Acharya Narendra Dev College, University of Delhi , New Delhi , India
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Silver nanoparticles: a possibility for malarial and filarial vector control technology. Parasitol Res 2014; 113:4015-22. [DOI: 10.1007/s00436-014-4069-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 07/31/2014] [Indexed: 12/22/2022]
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You CX, Yang K, Wu Y, Zhang WJ, Wang Y, Geng ZF, Chen HP, Jiang HY, Du SS, Deng ZW, Liu ZL. Chemical composition and insecticidal activities of the essential oil of Perilla frutescens (L.) Britt. aerial parts against two stored product insects. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-014-2242-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu XC, Liu Q, Zhou L, Liu ZL. Evaluation of larvicidal activity of the essential oil of Allium macrostemon Bunge and its selected major constituent compounds against Aedes albopictus (Diptera: Culicidae). Parasit Vectors 2014; 7:184. [PMID: 24731297 PMCID: PMC3996138 DOI: 10.1186/1756-3305-7-184] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 04/09/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND During the screening programme for new agrochemicals from Chinese medicinal herbs and local wild plants, the essential oil of dried bulbs of Allium macrostemon Bunge (Liliaceae) was found to possess larvicidal activity against mosquitoes. The aim of this research was to determine the larvicidal activity of the essential oil and its major constituent compounds against the larvae of the Culicidae mosquito, Aedes albopictus. METHODS Essential oil of A. macrostemon was obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas chromaotography-mass spectrometry (GC-MS). The activity of the essential oil and its two major constituents were evaluated, using World Health Organization (WHO) procedures, against the fourth instar larvae of Ae. albopictus for 24 h and larval mortalities were recorded at various essential oil/compound concentrations ranging from 9.0 - 150 μg/ml. RESULTS The essential oil of A. macrostemon exhibited larvicidal activity against the early fourth instar larvae of Ae. albopictus with an LC₅₀ value of 72.86 μg/ml. The two constituent compounds, dimethyl trisulfide and methyl propyl disulfide possessed strong larvicidal activity against the early fourth instar larvae of Ae. albopictus with LC50 values of 36.36 μg/ml and 86.16 μg/ml, respectively. CONCLUSION The results indicated that the essential oil of A. macrostemon and its major constituents have good potential as a source for natural larvicides.
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Affiliation(s)
| | | | | | - Zhi Long Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China.
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Mosquito Larvicidal Constituents from the Ethanol Extract ofInula racemosaHook. f. Roots againstAedes albopictus. J CHEM-NY 2014. [DOI: 10.1155/2014/738796] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The aim of this research was to determine larvicidal activity of the ethanol extract ofInula racemosaHook. f. (Compositae) roots against the larvae of the Culicidae mosquitoAedes albopictusand to isolate any larvicidal constituents from the extract. Based on bioactivity-guided fractionation, 11,13-dihydroisoalantolactone (1), macrophyllilactone E (2), 5α-epoxyalantolactone (3), and epoxyisoalantolactone (4) were isolated and identified as the active constituents. Compounds1and2exhibited strong larvicidal activity against the early fourth-instar larvae ofA. albopictuswith LC50values of 21.86 μg/mL and 18.65 μg/mL, respectively, while the ethanol extract had a LC50value of 25.23 μg/mL. Compounds3and4also possessed larvicidal activity against the Asian tiger mosquitoes with LC50values of 29.37 μg/mL and 35.13 μg/mL, respectively. The results indicated that the ethanol extract ofI. racemosaand the four isolated constituents have potential for use in the control ofA. albopictuslarvae and could be useful in the search of newer, safer, and more effective natural compounds as larvicides.
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Zhang WJ, You CX, Yang K, Chen R, Wang Y, Wu Y, Geng ZF, Chen HP, Jiang HY, Su Y, Lei N, Ma P, Du SS, Deng ZW. Bioactivity of Essential Oil of Artemisia argyi Lévl. et Van. and Its Main Compounds Against Lasioderma serricorne. J Oleo Sci 2014; 63:829-37. [DOI: 10.5650/jos.ess14057] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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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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Govindarajan M, Sivakumar R, Rajeswary M, Veerakumar K. Mosquito larvicidal activity of thymol from essential oil of Coleus aromaticus Benth. against Culex tritaeniorhynchus, Aedes albopictus, and Anopheles subpictus (Diptera: Culicidae). Parasitol Res 2013; 112:3713-21. [PMID: 23933878 DOI: 10.1007/s00436-013-3557-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 07/23/2013] [Indexed: 10/26/2022]
Abstract
Diseases transmitted by blood-feeding mosquitoes, such as dengue fever, dengue hemorrhagic fever, Japanese encephalitis, malaria, and filariasis, are increasing in prevalence, particularly in tropical and subtropical zones. To control mosquitoes and mosquito-borne diseases, which have a worldwide health and economic impacts, synthetic insecticide-based interventions are still necessary, particularly in situations of epidemic outbreak and sudden increases of adult mosquitoes. However, the indiscriminate use of conventional insecticides is fostering multifarious problems like widespread development of insecticide resistance, toxic hazards to mammals, undesirable effects on nontarget organisms, and environmental pollution. The aim of this research was to evaluate the toxicity of mosquito larvicidal activity of essential oil from Coleus aromaticus and its pure isolated constituent thymol against larvae of Culex tritaeniorhynchus, Aedes albopictus, and Anopheles subpictus. The chemical composition of the essential oil was analyzed using gas chromatography-mass spectroscopy. A total of 14 components of the essential oil of C. aromaticus were identified. The major chemical components identified were thymol (82.68%), terpinen-4-ol (3.2%), and trans-Caryophyllene (3.18%). Twenty-five early third instar larvae of C. tritaeniorhynchus, A. albopictus, and A. subpictus were exposed and assayed in the laboratory. Thymol and essential oil were tested in concentrations of 10, 20, 30, 40, and 50 and 30, 60, 90, 120, and 150 ppm, respectively. The larval mortality was observed after 24 h of treatment. The thymol had a significant toxic effect against early third-stage larvae of C. tritaeniorhynchus, A. albopictus, and A. subpictus with an LC50 values of 28.19, 24.83, and 22.06 μg/mL respectively, whereas the essential oil of C. aromaticus had an LC50 values of 72.70, 67.98, and 60.31 μg/mL, respectively. No mortality was observed in controls. The Chi-square values were significant at p < 0.05 level. The result indicated that the essential oil of C. aromaticus and the isolated constituent have a potential for use in control of C. tritaeniorhynchus, A. albopictus, and A. subpictus larvae and could be useful in search of newer, safer, and more effective natural compounds as larvicides.
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Affiliation(s)
- Marimuthu Govindarajan
- Unit of Vector Biology and Phytochemistry, Department of Zoology, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India,
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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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In vitro control of the camel nasal botfly, Cephalopina titillator, with doramectin, lavender, camphor, and onion oils. Parasitol Res 2013; 112:2503-10. [PMID: 23604566 DOI: 10.1007/s00436-013-3415-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 03/28/2013] [Indexed: 12/23/2022]
Abstract
Camels are very important livestock particularly in arid and semiarid lands. The oestrid fly, Cephalopina titillator (Clark), causes nasopharyngeal myiasis in camels, and it is widely distributed in many camel breeding areas triggering health hazards and severe economic losses in camels. The prevalence of infestation of camels (slaughtered at Tokh's slaughterhouse, Qalyubia Governorate, Egypt, during the period from September 2011 to March 2012) was 41.67 % (100 out of 240). Most infested camels developed clinical signs of nasal discharge, restlessness, loss of appetite, difficulty in breathing, frequent sneezing, and snoring. Postmortem examination of infested camels explained that breathing of the animal is greatly impaired because of blockage of the nasopharynx by larvae and/or mucofibrinous secretions. The larval count per camel ranged from 1 to 250 (mean 28.45 ± 6.48). In vitro larval immersion tests were carried out to determine the efficacy of doramectin (0.003 %) as well as some essential oils (50 % each) such as lavender, camphor, and onion oils against the second and third larval stages (L2 and L3) of C. titillator. Another trial had been done for imitating what could happen if the area around camels were treated with an insecticide or an insect repellent. All treated L2 died 18 h posttreatment (PT) with both doramectin and lavender, and 100 % mortality was reached for L3 after 24 and 30 h PT with lavender and doramectin, respectively. Doramectin and lavender induced the highest response against C. titillator as their lethal time (LT50) values after treatment of L2 were 3.40 and 3.60 h, respectively, and those of L3 were 4.99 and 5.53 h, respectively. Against both L2 and L3 of C. titillator and based on LT50 values of onion oil and those of other applied materials, doramectin and lavender oil were four times more effective than onion oil, and camphor oil was two times more effective than onion oil. Based on LT50 values of essential oils and those of doramectin, as a reference substance, the relative speed of efficacy indicated that camphor and onion oils were, respectively, two and four times less effective than doramectin and lavender. With regard to fumigant technique, neither the insecticide, New Pyrosol, nor the insect repellent, Keto, was effective in controlling C. titillator larvae. Our results indicated that doramectin and lavender could be selected as drugs of choice for controlling C. titillator, but it is not permitted to use doramectin on dairy animals during lactation. Lavender (50 %) has a great potential to be developed as a novel larvicide and could be used as nasal drench against nasal botfly which will reflect on camel production and the national economy.
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Li HQ, Liu QZ, Liu ZL, Du SS, Deng ZW. Chemical composition and nematicidal activity of essential oil of Agastache rugosa against Meloidogyne incognita. Molecules 2013; 18:4170-80. [PMID: 23571530 PMCID: PMC6270543 DOI: 10.3390/molecules18044170] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 04/02/2013] [Accepted: 04/03/2013] [Indexed: 11/17/2022] Open
Abstract
The aim of this research was to determine the chemical composition and nematicidal activity of essential oil of Agastache rugosa flowering aerial parts against the root knot nematode, Meloidogyne incognita, and to isolate and identify any nematicidal constituents from the essential oil. The essential oil of A. rugosa aerial parts was obtained by hydrodistillation and analyzed by GC-FID and GC-MS. A total of 37 components of the essential oil were identified, with the principal compounds being methyleugenol (50.51%), estragole (8.55%), and eugenol (7.54%), followed by thymol (3.62%), pulegone (2.56%), limonene (2.49%) and caryophyllene (2.38%). Based on bioactivity-guided fractionation, the three active constituents were isolated from the essential oil and identified as methyleugenol, estragole and eugenol. The essential oil of A. rugosa exhibited strong nematicidal activity against M.incognita, with a LC50 value of 47.3 μg/mL. The components eugenol (LC50 = 66.6 μg/mL) and methyleugenol (LC50 = 89.4 μg/mL) exhibited stronger nematicidal activity against M.incognita (LC50 = 185.9 μg/mL). The results indicate that the essential oil of A. rugosa aerial parts and its constituent compounds have potential for development into natural nematicides for control of the root knot nematode.
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Affiliation(s)
- He Qin Li
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China; E-Mails: (H.Q.L.); (Q.Z.L.)
| | - Qi Zhi Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China; E-Mails: (H.Q.L.); (Q.Z.L.)
| | - Zhi Long Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100193, China; E-Mails: (H.Q.L.); (Q.Z.L.)
- Authors to whom correspondence should be addressed; E-Mails: (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-Mails: (Z.L.L.); (S.S.D.); Tel./Fax: +86-10-6273-2800 (Z.L.L.); Tel./Fax: +86-10-6220-8032 (S.S.D.)
| | - Zhi Wei Deng
- Analytic and Testing Center, Beijing Normal University, Haidian District, Beijing 100875, China; E-Mail:
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