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Zou R, Li X, Jiang X, Shi D, Han Q, Duan H, Yang Q. Novel Butenolide Derivatives as Dual-Chitinase Inhibitors to Arrest the Growth and Development of the Asian Corn Borer. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5036-5046. [PMID: 38377548 DOI: 10.1021/acs.jafc.3c06714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
OfChtI and OfChi-h are considered potential targets for the control of Asian corn borer (Ostrinia furnacalis). In this work, the previously reported OfChtI inhibitor 5f was found to show certain inhibitory activity against OfChi-h (Ki = 5.81 μM). Two series of novel butenolide derivatives based on lead compound 5f were designed with the conjugate skeleton, contributing to the π-binding interaction to chitinase, and then synthesized. Compounds 4a-l and 7a-p displayed excellent inhibitory activities against OfChtI and OfChi-h, respectively, at a concentration of 10 μM. Compound 4h was found to be a good dual-Chitinase inhibitor, with Ki values of 1.82 and 2.00 μM against OfChtI and OfChi-h, respectively. The inhibitory mechanism studies by molecular docking suggested that π-π stacking interactions were crucial to the inhibitory activity of novel butenolide derivatives against two different chitinases. A preliminary bioassay indicated that 4h exhibited certain growth inhibition effects against O. furnacalis. Butenolide-like analogues should be further studied as promising novel dual-chitinase inhibitor candidates for the control of O. furnacalis.
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Affiliation(s)
- Renxuan Zou
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control, Beijing 100193, People's Republic of China
| | - Xiang Li
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control, Beijing 100193, People's Republic of China
| | - Xi Jiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
- Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, People's Republic of China
| | - Dongmei Shi
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control, Beijing 100193, People's Republic of China
| | - Qing Han
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control, Beijing 100193, People's Republic of China
| | - Hongxia Duan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, People's Republic of China
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control, Beijing 100193, People's Republic of China
| | - Qing Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
- Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, People's Republic of China
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Lu X, Xu H, Zhang X, Sun T, Lin Y, Li H, Li X, Zhang L, Duan H, Yang X, Ling Y. Target-Based Design, Synthesis, and Biological Evaluation of Novel 1,2,4-Triazolone Derivatives as Potential nAChR Modulators. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19333-19342. [PMID: 38050804 DOI: 10.1021/acs.jafc.3c04998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Novel agrochemicals have been successfully developed using target-based drug design (TBDD). To discover a novel, efficient, and highly selective nicotinic insecticide candidate, we developed a unified pharmacological model using TBDD by studying the binding modes of 11 nicotinic acetylcholine receptor (nAChR) modulators with acetylcholine binding protein (AChBP) targets for the first time. This model was used to design and develop a series of 1,2,4-triazolone derivatives. Bioassays demonstrated excellent insecticidal activities against Aphis glycines of compounds 4k (LC50 = 4.95 mg/L) and 4q (LC50 = 3.17 mg/L), and low toxicities to Apis mellifera. Additionally, compound 4q was stably bound to Aplysia californica AChBP, which was consistent with the pharmacological model obtained via molecular docking and molecular dynamics simulations. Therefore, compound 4q could be a potential lead candidate targeting nAChR. The explicit pharmacological model of nAChR modulators with Ac-AChBP in this study may facilitate the future rational design of eco-friendly nicotinic insecticides.
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Affiliation(s)
- Xingxing Lu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Huan Xu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xiaoming Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Tengda Sun
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yufan Lin
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Honghong Li
- Guangxi Key Laboratory of Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning, Guangxi Province 530004, China
| | - Xuesheng Li
- Guangxi Key Laboratory of Agro-Environment and Agro-Product Safety, Agricultural College, Guangxi University, Nanning, Guangxi Province 530004, China
| | - Li Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Hongxia Duan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xinling Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Yun Ling
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
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Aioub AAA, Hashem AS, El-Sappah AH, El-Harairy A, Abdel-Hady AAA, Al-Shuraym LA, Sayed S, Huang Q, Abdel-Wahab SIZ. Identification and Characterization of Glutathione S-transferase Genes in Spodoptera frugiperda (Lepidoptera: Noctuidae) under Insecticides Stress. TOXICS 2023; 11:542. [PMID: 37368642 DOI: 10.3390/toxics11060542] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023]
Abstract
Insect glutathione S-transferases (GSTs) serve critical roles in insecticides and other forms of xenobiotic chemical detoxification. The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a major agricultural pest in several countries, especially Egypt. This is the first study to identify and characterize GST genes in S. frugiperda under insecticidal stress. The present work evaluated the toxicity of emamectin benzoate (EBZ) and chlorantraniliprole (CHP) against the third-instar larvae of S. frugiperda using the leaf disk method. The LC50 values of EBZ and CHP were 0.029 and 1.250 mg/L after 24 h of exposure. Moreover, we identified 31 GST genes, including 28 cytosolic and 3 microsomal SfGSTs from a transcriptome analysis and the genome data of S. frugiperda. Depending on the phylogenetic analysis, sfGSTs were divided into six classes (delta, epsilon, omega, sigma, theta, and microsomal). Furthermore, we investigated the mRNA levels of 28 GST genes using qRT-PCR under EBZ and CHP stress in the third-instar larvae of S. frugiperda. Interestingly, SfGSTe10 and SfGSTe13 stood out with the highest expression after the EBZ and CHP treatments. Finally, a molecular docking model was constructed between EBZ and CHP using the most upregulated genes (SfGSTe10 and SfGSTe13) and the least upregulated genes (SfGSTs1 and SfGSTe2) of S. frugiperda larvae. The molecular docking study showed EBZ and CHP have a high binding affinity with SfGSTe10, with docking energy values of -24.41 and -26.72 kcal/mol, respectively, and sfGSTe13, with docking energy values of -26.85 and -26.78 kcal/mol, respectively. Our findings are important for understanding the role of GSTs in S. frugiperda regarding detoxification processes for EBZ and CHP.
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Affiliation(s)
- Ahmed A A Aioub
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Ahmed S Hashem
- Stored Product Pests Research Department, Plant Protection Research Institute, Agricultural Research Center, Sakha, Kafr El-Sheikh 33717, Egypt
| | - Ahmed H El-Sappah
- Department of Genetics, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin 644000, China
| | - Amged El-Harairy
- Unit of Entomology, Plant Protection Department, Desert Research Center, Mathaf El-Matariya St. 1, El-Matariya, Cairo 11753, Egypt
- Department of Integrated Pest Management, Plant Protection Institute, Hungarian University of Agriculture and Life Sciences, Páter Károly utca 1, 2103 Gödöllő, Hungary
| | - Amira A A Abdel-Hady
- Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Laila A Al-Shuraym
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Samy Sayed
- Department of Economic Entomology and Pesticides, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Qiulan Huang
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin 644000, China
| | - Sarah I Z Abdel-Wahab
- Plant Protection Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
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Duque JE, Urbina DL, Vesga LC, Ortiz-Rodríguez LA, Vanegas TS, Stashenko EE, Mendez-Sanchez SC. Insecticidal activity of essential oils from American native plants against Aedes aegypti (Diptera: Culicidae): an introduction to their possible mechanism of action. Sci Rep 2023; 13:2989. [PMID: 36805522 PMCID: PMC9941582 DOI: 10.1038/s41598-023-30046-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Searching for new bioactive molecules to design insecticides is a complex process since pesticides should be highly selective, active against the vector, and bio-safe for humans. Aiming to find natural compounds for mosquito control, we evaluated the insecticidal activity of essential oils (EOs) from 20 American native plants against Aedes aegypti larvae using bioassay, biochemical, and in silico analyses. The highest larvicide activity was exhibited by EOs from Steiractinia aspera (LC50 = 42.4 µg/mL), Turnera diffusa (LC50 = 70.9 µg/mL), Piper aduncum (LC50 = 55.8 µg/mL), Lippia origanoides (chemotype thymol/carvacrol) (LC50 = 61.9 µg/mL), L. origanoides (chemotype carvacrol/thymol) (LC50 = 59.8 µg/mL), Hyptis dilatata (LC50 = 61.1 µg/mL), Elaphandra quinquenervis (LC50 = 61.1 µg/mL), and Calycolpus moritzianus (LC50 = 73.29 µg/mL) after 24 h. This biological activity may be related to the disruption of the electron transport chain through the mitochondrial protein complexes. We hypothesized that the observed EOs' effect is due to their major components, where computational approaches such as homology modeling and molecular docking may suggest the possible binding pose of secondary metabolites that inhibit the mitochondrial enzymes and acetylcholinesterase activity (AChE). Our results provided insights into the possible mechanism of action of EOs and their major compounds for new insecticide designs targeting the mitochondria and AChE activity in A. aegypti for effective and safe insecticide.
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Affiliation(s)
- Jonny E. Duque
- grid.411595.d0000 0001 2105 7207Centro de Investigaciones en Enfermedades Tropicales – Cintrop, Departamento de Ciencias Básicas, Escuela de Medicina, Universidad Industrial de Santander, Parque Tecnológico y de Investigaciones Guatiguará Km 2 El Refugio, Piedecuesta, Colombia
| | - Diana L. Urbina
- grid.411595.d0000 0001 2105 7207Grupo de Investigación en Bioquímica y Microbiología (GIBIM), Escuela de Química, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Luis C. Vesga
- grid.411595.d0000 0001 2105 7207Grupo de Investigación en Bioquímica y Microbiología (GIBIM), Escuela de Química, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Luis A. Ortiz-Rodríguez
- grid.411595.d0000 0001 2105 7207Centro de Investigaciones en Enfermedades Tropicales – Cintrop, Departamento de Ciencias Básicas, Escuela de Medicina, Universidad Industrial de Santander, Parque Tecnológico y de Investigaciones Guatiguará Km 2 El Refugio, Piedecuesta, Colombia
| | - Thomas S. Vanegas
- grid.411595.d0000 0001 2105 7207Centro de Investigaciones en Enfermedades Tropicales – Cintrop, Departamento de Ciencias Básicas, Escuela de Medicina, Universidad Industrial de Santander, Parque Tecnológico y de Investigaciones Guatiguará Km 2 El Refugio, Piedecuesta, Colombia
| | - Elena E. Stashenko
- grid.411595.d0000 0001 2105 7207Centro de Investigación en Biomoléculas – CIBIMOL y Centro Nacional de Investigación para la Agroindustrialización de Plantas Aromáticas y Medicinales Tropicales – CENIVAM, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Stelia C. Mendez-Sanchez
- grid.411595.d0000 0001 2105 7207Grupo de Investigación en Bioquímica y Microbiología (GIBIM), Escuela de Química, Universidad Industrial de Santander, Bucaramanga, Colombia
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Synthesis, Fungicidal Activity and Plant Protective Properties of 1,2,3-Thiadiazole and Isothiazole-Based N-acyl- N-arylalaninates. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010419. [PMID: 36615609 PMCID: PMC9822468 DOI: 10.3390/molecules28010419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/16/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023]
Abstract
The addition of active groups of known fungicides, or systemic acquired resistance inducers, into novel compound molecules to search for potential antifungal compounds is a popular and effective strategy. In this work, a new series of N-acyl-N-arylalanines was developed and synthesized, in which 1,2,3-thiadiazol-5-ylcarbonyl or 3,4-dichloroisothiazol-5-ylcarbonyl (fragments from synthetic plant resistance activators tiadinil and isotianil, respectively) and a fragment of N-arylalanine, the toxophoric group of acylalanine fungicides. Several new synthesized compounds have shown moderate antifungal activity against fungi in vitro, such as B. cinerea, R. solani and S. sclerotiorum. In vivo tests against A. brassicicola showed that compound 1d was 92% effective at a concentration of 200 µg/mL, similar to level of tiadinil, a known inducer of systemic resistance. Thus, 1d could be considered a new candidate fungicide for further detailed study. The present results will advance research and influence the search for more promising fungicides for disease control in agriculture.
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Mauff AL, Cartereau A, Plantard O, Taillebois E, Thany SH. Effect of the combination of DEET and flupyradifurone on the tick Ixodes ricinus: Repellency bioassay and pharmacological characterization using microtransplantation of synganglion membranes. Ticks Tick Borne Dis 2023; 14:102079. [PMID: 36417824 DOI: 10.1016/j.ttbdis.2022.102079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 11/01/2022] [Accepted: 11/06/2022] [Indexed: 11/18/2022]
Abstract
Ticks are vectors of many human and animal pathogens, and represent a major threat to public health. In recent years, an increase in tick-borne diseases has been observed, and new strategies are therefore needed in order to control tick numbers and reduce human tick bites. In the present study, we adapted the previous tick repellency bioassay based on the exploration behavior of the tick, using the ToxTrac software and video-tracking, to compare the repellent effect of two compounds on the tick Ixodes ricinus: N,N-diethyl-methyl-m-toluamide (DEET), and butenolide, flupyradifurone (FLU). We found that when applied alone, 10% DEET or FLU have no/or low repellency effect. But, the combination of both 10% DEET and FLU demonstrated a significant repellency effect against I. ricinus, similar to the repellency of 20% DEET. Using membrane microtransplantation, we evaluated the effect of DEET and FLU on native acetylcholine receptors expressed on the tick synganglion. We found that DEET has no effect on acetylcholine-evoked currents, but significantly reduced nicotine-induced current amplitudes. FLU induced an ionic current but was not able to reduce acetylcholine or nicotine evoked currents. The combination of both DEET and FLU strongly reduced nicotine-evoked currents. Finally, we demonstrated that our recording device for repellency, as well as the use of membrane microtransplantation, could be used as methods to study the mode of action of active compounds on ticks.
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Affiliation(s)
- A L Mauff
- LBLGC USC INRAE 1328, Université d'Orléans, 1 rue de Chartres, Orléans 45067, France
| | - Alison Cartereau
- LBLGC USC INRAE 1328, Université d'Orléans, 1 rue de Chartres, Orléans 45067, France
| | | | - Emiliane Taillebois
- LBLGC USC INRAE 1328, Université d'Orléans, 1 rue de Chartres, Orléans 45067, France
| | - Steeve H Thany
- LBLGC USC INRAE 1328, Université d'Orléans, 1 rue de Chartres, Orléans 45067, France.
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Tantawy AH, Farag SM, Abdel-Haleem DR, Mohamed HI. Facile synthesis, larvicidal activity, biological effects, and molecular docking of sulfonamide-incorporating quaternary ammonium iodides as acetylcholinesterase inhibitors against Culex pipiens L. Bioorg Chem 2022; 128:106098. [PMID: 35987189 DOI: 10.1016/j.bioorg.2022.106098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/06/2022] [Accepted: 08/10/2022] [Indexed: 11/26/2022]
Abstract
Insecticides participate with a vital role in our lives especially in preventing the spread of human diseases via controlling the dangerous pests. It is a challenge to identify alternatives to the ordinary insecticides with new mode of action to be used for mosquitoes' control in an environmentally sustainable manner. Using a facile two-step procedure, three novel series of sulfonamide-incorporating quaternary ammonium iodides (3a-i, 4a-i and 5a-i) were synthesized and their chemical structures were successfully characterized. The uncharged sulfonamide intermediates (2a-i) were constructed through simple amidation of the corresponding (hetero)aryl sulfonyl chlorides then the cationic target molecules were formed by quaternizing the tertiary nitrogen with methyl, ethyl, and allyl iodides. The larvicidal activities and biological effects of most synthesized compounds against Culex pipiens L. were extensively investigated and they exhibited good and comparable activities to temephos. Among these hybrids, 4a showed the most potent activity with LC50 = 26.71 ppm. Additionally, the developmental durations of larval and pupal stages were significantly prolonged after treatment with all concentrations of 4h. At high concentration (160 ppm) of 4a and 4b, no adults emerged due to the complete death of pupae, and consequently zero growth index. Moreover, the results of the molecular docking demonstrated that the activities of compounds correlate partially to their binding with acetylcholinesterase (AChE) and it is not the sole parameter for determining the activity.
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Affiliation(s)
- Ahmed H Tantawy
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt.
| | - Shaimaa M Farag
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Doaa R Abdel-Haleem
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Hany I Mohamed
- Chemistry Department, Faculty of Science, Benha University, Benha 13518, Egypt
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Moussaoui O, Bhadane R, Sghyar R, Ilaš J, El Hadrami EM, Chakroune S, Salo-Ahen OMH. Design, synthesis, in vitro and in silico characterization of new 2-quinolone- L -alaninate-1,2,3-triazoles as novel antimicrobial agents. ChemMedChem 2022; 17:e202100714. [PMID: 34978160 PMCID: PMC9305408 DOI: 10.1002/cmdc.202100714] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/16/2021] [Indexed: 11/07/2022]
Abstract
Due to the ever‐increasing antimicrobial resistance there is an urgent need to continuously design and develop novel antimicrobial agents. Inspired by the broad antibacterial activities of various heterocyclic compounds such as 2‐quinolone derivatives, we designed and synthesized new methyl‐(2‐oxo‐1,2‐dihydroquinolin‐4‐yl)‐L‐alaninate‐1,2,3‐triazole derivatives via 1,3‐dipolar cycloaddition reaction of 1‐propargyl‐2‐quinolone‐L‐alaninate with appropriate azide groups. The synthesized compounds were obtained in good yield ranging from 75 to 80 %. The chemical structures of these novel hybrid molecules were determined by spectroscopic methods and the antimicrobial activity of the compounds was investigated against both bacterial and fungal strains. The tested compounds showed significant antimicrobial activity and weak to moderate antifungal activity. Despite the evident similarity of the quinolone moiety of our compounds with fluoroquinolones, our compounds do not function by inhibiting DNA gyrase. Computational characterization of the compounds shows that they have attractive physicochemical and pharmacokinetic properties and could serve as templates for developing potential antimicrobial agents for clinical use.
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Affiliation(s)
- Oussama Moussaoui
- Universite Sidi Mohamed Ben Abdallah, Laboratory of Applied Organic Chemistry, 30000, Fez, MOROCCO
| | | | - Riham Sghyar
- Universite Sidi Mohamed Ben Abdallah, Laboratory of Applied Organic Chemistry, 30000, Fez, MOROCCO
| | - Janez Ilaš
- University of Ljubljana: Univerza v Ljubljani, Department of Pharmaceutical Chemistry, 1000, Ljubljana, SLOVENIA
| | - El Mestafa El Hadrami
- Universite Sidi Mohamed Ben Abdallah, Laboratory of Applied Organic Chemistry, 30000, Fez, MOROCCO
| | - Said Chakroune
- Universite Sidi Mohamed Ben Abdallah, Laboratory of Applied Organic Chemistry, 30000, Fez, MOROCCO
| | - Outi M H Salo-Ahen
- Åbo Akademi University, Pharmaceutical Sciences, Tykistökatu 6 A, Biocity, 3rd floor, 20520, Turku, FINLAND
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Milugo TK, Tchouassi DP, Kavishe RA, Dinglasan RR, Torto B. Naturally Occurring Compounds With Larvicidal Activity Against Malaria Mosquitoes. FRONTIERS IN TROPICAL DISEASES 2021. [DOI: 10.3389/fitd.2021.718804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Female Anopheles mosquitoes transmit Plasmodium parasites that cause human malaria. Currently, vector control is the most widely deployed approach to reduce mosquito population and hence disease transmission. This relies on use of insecticide-based interventions including Long-lasting Insecticide-treated Nets (LLINs) and Indoor Residual Spraying (IRS) where scale-up has contributed to a dramatic decline in malaria deaths and morbidity over the past decade. Challenges to their effective use include the emergence and spread of insecticide resistance by malaria vector populations coupled with the inability to curb outdoor transmission. Under these situations, use of larvicides through larval source management (LSM) can complement these existing measures. The need to minimize environmental impact and effect on non-target organisms has spurred interest in the development of eco-friendly larvicides of natural origin. Here, we review literature published in the last five years to highlight compounds of natural origin found to exhibit larvicidal activity against malaria mosquitoes. Specifically, the larvicidal activity of different classes of compounds is discussed including their effect on non-target organisms. Additionally, we provide suggestions for future research into mosquito larvicides including the use of chemical synthesis to improve the bioactivity of known natural compounds.
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Younus M, Hasan MM, Ali S, Saddq B, Sarwar G, Ullah MI, Maqsood A, Ahmar S, Mora-Poblete F, Hassan F, Chen JT, Noureldeen A, Darwish H. Extracts of Euphorbia nivulia Buch.-Ham. showed both phytotoxic and insecticidal capacities against Lemna minor L. and Oxycarenus hyalinipennis Costa. PLoS One 2021; 16:e0250118. [PMID: 33930032 PMCID: PMC8087071 DOI: 10.1371/journal.pone.0250118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 03/30/2021] [Indexed: 12/02/2022] Open
Abstract
Many phytochemicals can affect the growth and development of plants and insects which can be used as biological control agents. In this study, different concentrations of crude, hexane, chloroform, butanol, and aqueous extracts of Euphorbia nivulia Buch.-Ham., an endemic plant of the Cholistan desert in South Punjab of Pakistan, were analysed for their chemical constituents. Their various concentrations were also tested for their phytotoxic and insecticidal potential against duckweed, Lemna minor L., and the dusky cotton bug, Oxycarenus hyalinipennis Costa. various polyphenols, i.e., quercetin, gallic acid, caffeic acid, syringic acid, coumaric acid, ferulic acid, and cinnamic acid were detected in different concentrations with different solvents during the phytochemical screening of E. nivulia. In the phytotoxicity test, except for 100 μg/mL of the butanol extract gave 4.5% growth regulation, no phytotoxic lethality could be found at 10 and 100 μg/mL of all the extracts. The highest concentration, 1000 μg/mL, of the chloroform, crude, and butanol extracts showed 100, 63.1, and 27.1% of growth inhibition in duckweed, respectively. In the insecticidal bioassay, the highest O. hyalinipennis mortalities (87 and 75%) were recorded at 15% concentration of the chloroform and butanol extracts of E. nivulia. In contrast, the lower concentrations of the E. nivulia extracts caused the lower mortalities. Altogether, these findings revealed that E. nivulia chloroform extracts showed significant phytotoxicity while all the extracts showed insecticidal potential. This potential can be, further, refined to be developed for bio-control agents.
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Affiliation(s)
- Muhammad Younus
- Faculty of Pharmacy, Department of Pharmacognosy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
- Faculty of Pharmacy & Pharmaceutical Sciences, Department of Pharmacognosy, University of Karachi, Karachi, Pakistan
| | - Muhammad Mohtasheemul Hasan
- Faculty of Pharmacy & Pharmaceutical Sciences, Department of Pharmacognosy, University of Karachi, Karachi, Pakistan
| | - Sajjad Ali
- Department of Entomology, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Bushra Saddq
- Department of Entomology, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Gulam Sarwar
- Faculty of Sciences, Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Irfan Ullah
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Ambreen Maqsood
- Department of Plant Pathology, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sunny Ahmar
- Institute of Biological Sciences, University of Talca, Talca, Chile
| | | | - Farazia Hassan
- Department of Biotechonolgy and Bioinformatics, Virtual university of Pakistan, Bahawalpur, Pakistan
| | - Jen-Tsung Chen
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Ahmed Noureldeen
- Department of Biology, College of Sciences, Taif University, Taif, Saudi Arabia
| | - Hadeer Darwish
- Department of Biotechnology, College of Sciences, Taif University, Taif, Saudi Arabia
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