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Popescu VS, Zhang L, Papa G, Giuliani C, Ribaudo G, Abate G, Bulgari D, Mac Sweeney E, Pucci M, Bottoni M, Milani F, Zizioli D, Negri I, Gianoncelli A, Gobbi E, Uberti D, Lucini L, Memo M, Fico G, Peron G, Mastinu A. Ecotoxicological evaluation of an aqueous phytoextract of Melia azedarach L. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175314. [PMID: 39117217 DOI: 10.1016/j.scitotenv.2024.175314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 07/16/2024] [Accepted: 08/04/2024] [Indexed: 08/10/2024]
Abstract
Melia azedarach L. is a Meliaceae that has shown important insecticidal activities. However, few researchers have extensively studied the toxicology of aqueous extracts of M. azedarach (MAE). Therefore, the main objective of this study was to characterize the phyto-eco-toxicological profile of MAE. First, a botanical and phytochemical characterization of MAE was performed using a histological, and metabolomic multi-analytical approach. Second, the toxicological effects on pollinating insects (Apis mellifera ligustica) and soil collembola (Folsomia candida) were evaluated. In addition, acute toxicity was evaluated in zebrafish (Danio rerio) to assess effects on aquatic fauna, and toxicity was determined in human neuroblastoma (SH-SY5Y) and fibroblast (FB-21) cell models. Finally, phytotoxic effects on germination of Cucumis sativus L., Brassica rapa L. and Sorghum vulgare L. were considered. Metabolomic analyses revealed the presence of not only limonoids but also numerous alkaloids, flavonoids and terpenoids in MAE. Histological analyses allowed us to better localize the areas of leaf deposition of the identified secondary metabolites. Regarding the ecotoxicological data, no significant toxicity was observed in bees and collembola at all doses tested. In contrast, severe cardiac abnormalities were observed in zebrafish embryos at concentrations as low as 25 μg/mL. In addition, MAE showed toxicity at 1.6 μg/mL and 6.25 μg/mL in FB-21 and SH-SY5Y cells, respectively. Finally, MAE inhibited seed germination with inhibitory concentrations starting from 5.50 μg/mL in B. rapa, 20 μg/mL in S. vulgare, and 31 μg/mL in C. sativus. Although M. azedarach extracts are considered valuable natural insecticides, their ecological impact cannot be underestimated. Even the use of an environmentally friendly solvent (an aqueous solution), for the first time, is not without side effects. Therefore, the data collected in this study show the importance of evaluating the dosages, modes of administration and production methods of M. azedarach phytoextracts in agricultural settings.
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Affiliation(s)
- Vlad Sebastian Popescu
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Leilei Zhang
- Department of Sustainable Food Process, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy.
| | - Giulia Papa
- Department of Sustainable Crop Production-DIPROVES, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Claudia Giuliani
- Department of Pharmaceutical Science, University of Milan, 20133 Milan, Italy; Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, Brescia, 25088, Italy.
| | - Giovanni Ribaudo
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Giulia Abate
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Daniela Bulgari
- Department of Food, Environmental, and Nutritional Sciences, University of Milan, 20133 Milan, Italy.
| | - Eileen Mac Sweeney
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Mariachiara Pucci
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Martina Bottoni
- Department of Pharmaceutical Science, University of Milan, 20133 Milan, Italy; Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, Brescia, 25088, Italy.
| | - Fabrizia Milani
- Department of Pharmaceutical Science, University of Milan, 20133 Milan, Italy; Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, Brescia, 25088, Italy.
| | - Daniela Zizioli
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Ilaria Negri
- Department of Sustainable Crop Production-DIPROVES, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Alessandra Gianoncelli
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Emanuela Gobbi
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Daniela Uberti
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Luigi Lucini
- Department of Sustainable Food Process, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy.
| | - Maurizio Memo
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Gelsomina Fico
- Department of Pharmaceutical Science, University of Milan, 20133 Milan, Italy; Ghirardi Botanical Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, Toscolano Maderno, Brescia, 25088, Italy.
| | - Gregorio Peron
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
| | - Andrea Mastinu
- Department of Molecular and Translational Medicine, Division of Pharmacology, University of Brescia, 25123 Brescia, Italy.
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Algammal AA, Mohamed MA, Abd Eldaim M, Eisa AMAE, El-Shenawy AA, Bazh EK, Ammar NI, Hamad R. Anticoccidial potentials of Azadirachta indica ethosomal nanovesicle in broiler chicks. Vet Parasitol 2024; 331:110270. [PMID: 39079237 DOI: 10.1016/j.vetpar.2024.110270] [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: 04/26/2024] [Revised: 06/30/2024] [Accepted: 07/21/2024] [Indexed: 09/12/2024]
Abstract
This study evaluated the efficacy of Azadirachta indica ethosomal nanovesicle against Eimeria tenella infection in broiler chicks. Azadirachta indica ethanolic extract was screened phtochemically and analyzed active components of the extracts using high‑performance liquid chromatography (HPLC). Azadirachta indica ethosomal nanovesicle was synthesized and characterized by zeta potential and scanning electron microscope. Broiler chicks were allocated into seven groups. Control group. The second group administered nanosized ethosomal vesicles (1 mL/kg b.wt.). The third group administered Azadirachta indica nanovesicles (30 mg/kg b.wt.) from 10th day of age. Fourth group was infected with E. tenella at a dose of 1 mL containing 40000 oocyst/ chick at 14th day of age. The fifth group administered Azadirachta indica nanovesicle (30 mg/kg b.wt.) from 10th day of age and infected with E. tenella as fourth group. The sixth group infected with E. tenella as the fourth group and treated with Azadirachta indica nanovesicle (30 mg/kg b.wt. for 4 days after clinical signs appearance. The seventh group infected with E. tenella as the fourth group and treated with diclazuril group (1 mL/4 L of water) for 2 successive days. Coccidiosis significantly decreased body weight, feed intake, reduced glutathione (GSH) level while increased feed conversion ratio, oocyst count, malonaldehyde (MDA) and nitric oxide (NO) serum levels, protein expression of interleukin-1 beta (IL-1β), interleukin 6 (IL-6), BAX and Caspase 3, in cecal tissue and induced cecal tissue injury. However, administration of coccidiosis chicks Azadirachta indica nanovesicle enhanced body weight, and serum GSH. While decreased feed intake, feed conversion ratio, oocyst count, MDA, and NO serum levels, and protein expression of IL-1β, IL-6, BAX, and caspase 3 in cecal tissues and ameliorated cecal tissue damage. This study indicated that, A. indica ethosomal nanovesicle had potent anticoccidial properties.
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Affiliation(s)
| | - Mostafa Abdelgaber Mohamed
- Department of Pathology, Faculty of Veterinary Medicine, Menoufia University, Shebeen El-kom 32511, Egypt
| | - Mabrouk Abd Eldaim
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Menoufia University, Shebeen El-kom 32511, Egypt.
| | | | - Ahmed Ahmed El-Shenawy
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Eman Kamal Bazh
- Department of Parasitology, Faculty of Veterinary Medicine, Menoufia University, Shebeen El-kom, Menoufia 32511, Egypt
| | - Noha Ibrahim Ammar
- Animal Health Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
| | - Rania Hamad
- Department of Pathology, Faculty of Veterinary Medicine, Menoufia University, Shebeen El-kom 32511, Egypt
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Fan ST, Zheng ZJ, Feng Q, Zhu GH. Azadirachtin Induces Fat Body Apoptosis by Suppressing Caspase-8 in the Fall Armyworm, Spodoptera frugiperda. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:19323-19332. [PMID: 39174876 DOI: 10.1021/acs.jafc.4c05290] [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: 08/24/2024]
Abstract
Azadirachtin is a widely used botanical pesticide for agricultural pest control worldwide. However, the molecular mechanisms of azadirachtin in insects are not fully understood. In this study, histological analysis and RNA sequencing were conducted to investigate the impact of azadirachtin on the larval development of Spodoptera frugiperda. Under azadirachtin exposure, the development was completely inhibited, and the major internal tissues, fat body, and midgut were strongly damaged under histological analysis. Differential gene expression analysis demonstrated that nutrient absorption and detoxification metabolism-related genes are differentially expressed. Interestingly, the expression of the apoptosis-related gene, caspase-8, was significantly inhibited under exposure to azadirachtin. In addition, after knocking down the expression of the caspase-8 gene, the fat body displayed a similar apoptotic phenotype as azadirachtin treatment; the distribution of chromatin and lipid droplets was uneven in the fat body cells. Thus, the results in this study demonstrated that exposure to azadirachtin rapidly activates apoptosis, resulting in innate tissue disruption, ultimately arresting larval development in S. frugiperda.
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Affiliation(s)
- Shu-Ting Fan
- School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Rd, Guangming District, Shenzhen, Guangdong 518107, China
- State Key Laboratory of Biocontrol, School of Agriculture and Biotechnology, Sun Yat-sen University, Shenzhen 518107, China
| | - Zi-Jing Zheng
- School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Rd, Guangming District, Shenzhen, Guangdong 518107, China
- State Key Laboratory of Biocontrol, School of Agriculture and Biotechnology, Sun Yat-sen University, Shenzhen 518107, China
| | - Qing Feng
- Institute of Plant Protection, Hainan Academy of Agricultural Sciences (Research Center of Quality Safety and Standards for Agro-Products, Hainan Academy of Agricultural Sciences), Haikou, Hainan 571100, China
| | - Guan-Heng Zhu
- School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-sen University, No. 66, Gongchang Rd, Guangming District, Shenzhen, Guangdong 518107, China
- State Key Laboratory of Biocontrol, School of Agriculture and Biotechnology, Sun Yat-sen University, Shenzhen 518107, China
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Aguirre PAU, Martins KM, López CDD, Sánchez FO, Castaño AT, Velásquez CMR, Vidal AP. Effect of nanoformulation Azadirachta indica on some factors associated with the vectorial capacity and competence of Anopheles aquasalis experimentally infected with Plasmodium vivax. Acta Trop 2024; 255:107223. [PMID: 38642694 DOI: 10.1016/j.actatropica.2024.107223] [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: 10/22/2023] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
Malaria remains a highly prevalent infectious disease worldwide, particularly in tropical and subtropical regions. Effectively controlling of mosquitoes transmitting of Plasmodium spp. is crucial in to control this disease. A promising strategy involves utilizing plant-derived products, such as the Neem tree (Azadirachta indica), known for its secondary metabolites with biological activity against various insect groups of agricultural and public health importance. This study investigated the effects of a nanoformulation prototype Neem on factors linked to the vector competence of Anopheles aquasalis, a malaria vector in Latin America. Different concentrations of the nanoformulation were supplied through sugar solution and blood feeding, assessing impacts on longevity, fecundity, fertility, and transgenerational survival from larvae to adults. Additionally, the effects of the Neem nanoformulation and NeemAZAL® formulation on the sporogonic cycle of P. vivax were evaluated. Overall, significant impacts were observed at 100 ppm and 1,000 ppm concentrations on adult survival patterns and on survival of the F1 generation. A trend of reduced oviposition and hatching rates was also noted in nanoformulation-consuming groups, with fertility and fecundity declining proportionally to the concentration. Additionally, a significant decrease in the infection rate and intensity of P. vivax was observed in the 1,000 ppm group, with a mean of 3 oocysts per female compared to the control's 27 oocysts per female. In the commercial formulation, the highest tested concentration of 3 ppm yielded 5.36 oocysts per female. Concerning sporozoite numbers, there was a reduction of 52 % and 87 % at the highest concentrations compared to the control group. In conclusion, these findings suggest that the A. indica nanoformulation is a potential as a tool for malaria control through reduction in the vector longevity and reproductive capacity, possibly leading to decreased vector population densities. Moreover, the nanoformulation interfered with the sporogonic development of P. vivax. However, further basic research on Neem formulations, their effects, and mechanisms of action is imperative to gain a more specific perspective for safe field implementation.
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Affiliation(s)
| | - Keillen Monick Martins
- Laboratório de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Brazil
| | | | | | | | | | - Adriana Pabón Vidal
- Grupo Malaria, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
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Martínez-Castro R, Flórez-Santiago J, Valle-Molinares R, Cabrera-Barraza J, Espitia-Almeida F. Optimized microwave-assisted azadirachtin extraction using response surface methodology. Heliyon 2024; 10:e31504. [PMID: 38831827 PMCID: PMC11145488 DOI: 10.1016/j.heliyon.2024.e31504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 06/05/2024] Open
Abstract
The neem tree (Azadirachta indica A. Juss) is grown mainly for shade, fuel, and numerous non-timber forest products using its leaves, fruit, and bark. It produces an essential oil that is used as a source for obtaining bioinsecticides, with a broad spectrum of action in agricultural production. Its bioinsecticidal activity is due to the presence of triterpenes, such as azadirachtin, a product in continued growth of the global biopesticide market. Optimal conditions for neem oil extraction using response surface methodology (RSM) and microwave-assisted extraction (MAE) methods have been defined. However, the extraction conditions for these methods tend to consume high volumes of organic solvent and long extraction times. The aim of the present study is to determine the optimal conditions for the extraction of azadirachtin from neem seeds in a hydroalcoholic medium using MAE and RSM with a Box-Behnken design (BBD). A BBD was applied to evaluate the effects of the factors, magnetron voltage (X1), extraction time (X2), and pH of the extraction medium (X3), on the yield of the azadirachtin extraction process. The effect of each variable on the extraction yield was studied independently, considering the pure coefficients (linear and quadratic) on the three levels that were studied in the experiments. Moreover, the study experiments were conducted in triplicate, data were presented as mean and standard deviation, homogeneity of variances was estimated using Levene's test, and a two-way ANOVA with Tukey's post hoc analysis was performed to identify the experimental conditions that allowed us to find the highest extraction yield and to analyze whether the response surface model adequately described our data. The most significant effects of the model correspond to quadratic and interaction effects (p < 0.0001); the quadratic terms voltage (X1), extraction time (X2), and pH (X3); and the interaction effects between voltage-pH (X1*X3) and time-pH (X2*X3), which had a significant influence on the model. Moreover, a canonical analysis was performed. The optimal conditions were as follows: 69.22 V, 6.89 min, and a pH value of 4.35, coinciding with the zones shown in the contour plots. Furthermore, the response obtained at the optimal conditions was 37.5 μg of azadirachtin per gram of pretreated seed.
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Affiliation(s)
- Robinson Martínez-Castro
- Faculty of Engineering, Chemical Engineering Program, Universidad del Atlántico, Puerto Colombia, 081001, Colombia
| | - Jiress Flórez-Santiago
- Faculty of Basic Sciences, Chemistry Program, Universidad del Atlántico, Puerto Colombia, 081001, Colombia
| | - Roger Valle-Molinares
- Faculty of Basic Sciences, Biology Program, Universidad del Atlántico, Puerto Colombia, 081001, Colombia
| | - Julián Cabrera-Barraza
- Center for Research and Innovation in Climate Change and Biodiversity, Faculty of Basic and Biomedical Sciences, Universidad Simón Bolívar, Barranquilla, 080002, Colombia
| | - Fabián Espitia-Almeida
- Faculty of Basic Sciences, Biology Program, Universidad del Atlántico, Puerto Colombia, 081001, Colombia
- Life Sciences Research Center, Faculty of Basic and Biomedical Sciences, Universidad Simón Bolívar, Barranquilla, 080002, Colombia
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Duan ZK, Wang X, Lian MY, Guo SS, Gao ZH, Bai M, Huang XX, Song SJ. Bioassay-Guided and DeepSAT-Driven Precise Mining of Monoterpenoid Coumarin Derivatives with Antifeedant Effects from the Leaves of Ailanthus altissima. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10958-10969. [PMID: 38703118 DOI: 10.1021/acs.jafc.4c01049] [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: 05/06/2024]
Abstract
Demand for the exploration of botanical pesticides continues to increase due to the detrimental effects of synthetic chemicals on human health and the environment and the development of resistance by pests. Under the guidance of a bioactivity-guided approach and HSQC-based DeepSAT, 16 coumarin derivatives were discovered from the leaves of Ailanthus altissima (Mill.) Swingle, including seven undescribed monoterpenoid coumarins, three undescribed monoterpenoid phenylpropanoids, and two new coumarin derivatives. The structure and configurations of these compounds were established and validated via extensive spectroscopic analysis, acetonide analysis, and quantum chemical calculations. Biologically, 5 exhibited significant antifeedant activity toward the Plutella xylostella. Moreover, tyrosinase being closely related to the growth and development of larva, the inhibitory potentials of 5 against tyrosinase was evaluated in vitro and in silico. The bioactivity evaluation results highlight the prospect of 5 as a novel category of botanical insecticide.
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Affiliation(s)
- Zhi-Kang Duan
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xu Wang
- School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, Liaoning 110016, P. R. China
| | - Mei-Ya Lian
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Shan-Shan Guo
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Zhi-Heng Gao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Ming Bai
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
- Basic Science Research Center Base (Pharmaceutical Science), Shandong province, Yantai University, Yantai 264005, China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
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Ramírez RE, Buendia-Corona RE, Pérez-Xochipa I, Scior T. Computational Binding Study Hints at Ecdysone 20-Mono-Oxygenase as the Hitherto Unknown Target for Ring C-Seco Limonoid-Type Insecticides. Molecules 2024; 29:1628. [PMID: 38611907 PMCID: PMC11013123 DOI: 10.3390/molecules29071628] [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: 03/12/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
The insecticidal property of ring C-seco limonoids has been discovered empirically and the target protein identified, but, to date, the molecular mechanism of action has not been described at the atomic scale. We elucidate on computational grounds whether nine C-seco limonoids present sufficiently high affinity to bind specifically with the putative target enzyme of the insects (ecdysone 20-monooxygenase). To this end, 3D models of ligands and the receptor target were generated and their interaction energies estimated by docking simulations. As a proof of concept, the tetrahydro-isoquinolinyl propenamide derivative QHC is the reference ligand bound to aldosterone synthase in the complex with PDB entry 4ZGX. It served as the 3D template for target modeling via homology. QHC was successfully docked back to its crystal pose in a one-digit nanomolar range. The reported experimental binding affinities span over the nanomolar to lower micromolar range. All nine limonoids were found with strong affinities in the range of -9 < ΔG < -13 kcal/mol. The molt hormone ecdysone showed a comparable ΔG energy of -12 kcal/mol, whereas -11 kcal/mol was the back docking result for the liganded crystal 4ZGX. In conclusion, the nine C-seco limonoids were strong binders on theoretical grounds in an activity range between a ten-fold lower to a ten-fold higher concentration level than insecticide ecdysone with its known target receptor. The comparable or even stronger binding hints at ecdysone 20-monooxygenase as their target biomolecule. Our assumption, however, is in need of future experimental confirmation before conclusions with certainty can be drawn about the true molecular mechanism of action for the C-seco limonoids under scrutiny.
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Affiliation(s)
- Ramsés E. Ramírez
- Departamento de Fisicomatemáticas, Facultad de Ciencias Químicas Benemérita, Universidad Autónoma de Puebla, Prol. 24 Sur, Puebla 72570, Mexico; (R.E.R.); (R.E.B.-C.)
| | - Ricardo E. Buendia-Corona
- Departamento de Fisicomatemáticas, Facultad de Ciencias Químicas Benemérita, Universidad Autónoma de Puebla, Prol. 24 Sur, Puebla 72570, Mexico; (R.E.R.); (R.E.B.-C.)
| | - Ivonne Pérez-Xochipa
- Departamento de Bioquímica Alimentos, Facultad de Ciencias Químicas Benemérita, Universidad Autónoma de Puebla, Prol. 24 Sur, Puebla 72570, Mexico;
| | - Thomas Scior
- Laboratorio de Simulaciones Moleculares Computacionales, Facultad de Ciencias Químicas Benemérita, Universidad Autónoma de Puebla, Prol. 24 Sur, Puebla 72570, Mexico
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Nagini S, Palrasu M, Bishayee A. Limonoids from neem (Azadirachta indica A. Juss.) are potential anticancer drug candidates. Med Res Rev 2024; 44:457-496. [PMID: 37589457 DOI: 10.1002/med.21988] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 07/06/2023] [Accepted: 08/06/2023] [Indexed: 08/18/2023]
Abstract
Neem (Azadirachta indica A. Juss.), a versatile evergreen tree recognized for its ethnopharmacological value, is a rich source of limonoids of the triterpenoid class, endowed with potent medicinal properties. Extracts of neem have been documented to display anticancer effects in diverse malignant cell lines as well as in preclinical animal models that has largely been attributed to the constituent limonoids. Of late, neem limonoids have become the cynosure of research attention as potential candidate agents for cancer prevention and therapy. Among the various limonoids found in neem, azadirachtin, epoxyazadiradione, gedunin, and nimbolide, have been extensively investigated for anticancer activity. Azadirachtin, a potent biodegradable pesticide, exhibits profound antiproliferative effects by preventing mitotic spindle formation and cell division. The antiproliferative activity of gedunin has been demonstrated to be mediated primarily via inhibition of heat shock protein90 and its client proteins. Epoxyazadiradione inhibits pro-inflammatory and kinase-driven signaling pathways to block tumorigenesis. Nimbolide, the most potent cytotoxic neem limonoid, inhibits the growth of cancer cells by regulating the phosphorylation of keystone kinases that drive oncogenic signaling besides modulating the epigenome. There is overwhelming evidence to indicate that neem limonoids exert anticancer effects by preventing the acquisition of hallmark traits of cancer, such as cell proliferation, apoptosis evasion, inflammation, invasion, angiogenesis, and drug resistance. Neem limonoids are value additions to the armamentarium of natural compounds that target aberrant oncogenic signaling to inhibit cancer development and progression.
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Affiliation(s)
- Siddavaram Nagini
- Department of Biochemistry & Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Manikandan Palrasu
- Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, USA
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
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Fazekas TJ, Micalizio GC. Progress Toward the Asymmetric De Novo Synthesis of Limonoids. Org Lett 2024; 26:1073-1077. [PMID: 38277646 DOI: 10.1021/acs.orglett.3c04306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
Asymmetric de novo construction of limonoids remains a challenging problem in stereoselective synthesis due to the diverse and complex structures associated with this class of natural products. Here, a unique synthetic pathway to an "intact" limonoid system is described. The synthetic route is based on exploiting an oxidative rearrangement reaction of a densely functionalized late-stage intermediate to simultaneously establish the stereodefined C10 quaternary center and an allylic acetate at C12. This is a unique example of a complex rearrangement reaction that proceeds on a system whose presumed intermediate allyl cation is highly hindered and lacks neighboring protons that are otherwise required for cation termination.
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Affiliation(s)
- Timothy J Fazekas
- Department of Chemistry, Dartmouth College, Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - Glenn C Micalizio
- Department of Chemistry, Dartmouth College, Burke Laboratory, Hanover, New Hampshire 03755, United States
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10
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Fan ST, Wu MZ, Liu C, Li HH, Huang SH, Zheng ZJ, Ye XY, Tan JF, Zhu GH. Azadirachtin Inhibits Nuclear Receptor HR3 in the Prothoracic Gland to Block Larval Ecdysis in the Fall Armyworm, Spodoptera frugiperda. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15497-15505. [PMID: 37843053 DOI: 10.1021/acs.jafc.3c05508] [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: 10/17/2023]
Abstract
Azadirachtin has been used to control agricultural pests for a long time; however, the molecular mechanism of azadirachtin on lepidopterans is still not clear. In this study, the fourth instar larvae of fall armyworm were fed with azadirachtin, and then the ecdysis was blocked in the fourth instar larval stage (L4). The prothoracic glands (PGs) of the treated larvae were dissected for RNA sequencing to determine the effect of azadirachtin on ecdysis inhibition. Interestingly, one of the PG-enriched genes, the nuclear hormone receptor 3 (HR3), was decreased after azadirachtin treatment, which plays a critical role in the 20-hydroxyecdysone action during ecdysis. To deepen the understanding of azadirachtin on ecdysis, the HR3 was knocked out by using the CRISPR/Cas9 system, while the HR3 mutants displayed embryonic lethal phenotype; thus, the stage-specific function of HR3 during larval molting was not enabled to unfold. Hence, the siRNA was injected into the 24 h L4 larvae to knock down HR3. After 96 h, the injected larvae were blocked in the old cuticle during ecdysis which is consistent with the azadirachtin-treated larvae. Taken together, we envisioned that the inhibition of ecdysis in the fall armyworm after the azadirachtin treatment is due to an interference with the expression of HR3 in PG, resulting in larval mortality. The results in this study specified the understanding of azadirachtin on insect ecdysis and the function of HR3 in lepidopteran in vivo.
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Affiliation(s)
- Shu-Ting Fan
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Mian-Zhi Wu
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Chang Liu
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Hua-Hong Li
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Shang-Huan Huang
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Zi-Jing Zheng
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Xi-Yu Ye
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Jin-Fang Tan
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
| | - Guan-Heng Zhu
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Shenzhen 518107, China
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Acharya R, Sharma SR, Barman AK, Kim SM, Lee KY. Control efficacy of azadirachtin on the fall armyworm, Spodoptera frugiperda (J. E. Smith) by soil drenching. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2023; 113:e22020. [PMID: 37106481 DOI: 10.1002/arch.22020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 04/15/2023] [Accepted: 04/18/2023] [Indexed: 06/17/2023]
Abstract
The fall armyworm (FAW), Spodoptera frugiperda, is an important agricultural pest species native to the Western Hemisphere and has recently invaded to Africa and Asia. Owing to the development of pesticide resistance and environmental contamination, ecofriendly pesticides are desirable for FAW control. Azadirachtin is a plant-derived natural pesticide with low toxicity to humans and the natural environment. Azadirachtin is primarily applied by foliar spraying; however, this approach lowers the efficacy of controlling target insects owing to photodegradation and might give a harmful effect on nontarget beneficial insects. Thus, we investigated whether applying azadirachtin to soil improves FAW control and its toxicity to corn plants. Soil drainage of azadirachtin exhibited no phytotoxic effects on corn plants but significantly reduced the larval body weight and delayed the developmental period of each larval instar of FAW. Applying 10, 15, and 20 ppm azadirachtin to soil inhibited larval growth by 68%, 76%, and 91%, respectively. Furthermore, the survival rate of FAW gradually decreased when larvae were fed azadirachtin-treated corn leaves. Collectively, this is the first study suggesting the systemic efficacy of azadirachtin by soil drenching against FAW.
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Affiliation(s)
- Rajendra Acharya
- College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
- Department of Entomology, University of Georgia, Tifton, Georgia, USA
| | - Sushant Raj Sharma
- College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Apurba K Barman
- Department of Entomology, University of Georgia, Tifton, Georgia, USA
| | - Sang-Mok Kim
- Animal and Plant Quarantine Agency, Plant Quarantine Technology Center, Gimcheon, Republic of Korea
| | - Kyeong-Yeoll Lee
- College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
- Graduate School of Plant Protection and Quarantine, Kyungpook National University, Daegu, Republic of Korea
- Institute of Plant Medicine, Kyungpook National University, Daegu, Republic of Korea
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12
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Scudeler EL, Daquila BV, de Carvalho SF, Conte H, Padovani CR, Dos Santos DC. Azadirachtin-based insecticide impairs testis morphology and spermatogenesis of the southern armyworm Spodoptera eridania (Lepidoptera: Noctuidae). PEST MANAGEMENT SCIENCE 2023; 79:1650-1659. [PMID: 36565161 DOI: 10.1002/ps.7338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/19/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND In the search for alternative tools for integrated pest management, azadirachtin, a botanical insecticide, has been used with the most promising activity against Spodoptera spp., but the mechanism of cytotoxicity on reproductive organs remains unclear. Spodoptera eridania (Stoll, 1782) is a polyphagous pest with great economic importance that has become an important target to elucidate the action of azadirachtin on the reproductive organs of insect pests, helping to understand the deleterious effects caused by its exposure. This study evaluated the effects of chronic exposure to azadirachtin on the morphology and ultrastructure of S. eridania larval testes as well as larval development. RESULTS Azadirachtin exposure (6 or 18 mg a.i. L-1 ) caused a progressive increase in cumulative mortality and reduced gain in body mass after 5 days. Testicular structure indicated a reduction in their size with internal morphological changes such as spermatogonia, spermatogonial, spermatocytes and spermatid cysts in degeneration. The occurrence of cell death in germ and somatic cells was evidenced by the TUNEL technique. Electron microscopy revealed changes in cystic cells, such as cytoplasmic membrane rupture and cytoplasmic vacuolization. Chromatin compaction, changes in the rough endoplasmic reticulum and Golgi complex cisternae were observed in germ cells. Apoptotic bodies occurred between germ cell cysts. CONCLUSION Azadirachtin damaged the testes of S. eridania larvae, and these changes compromised spermatogenesis and consequently the development of the reproductive potential of this specimen, making azadirachtin a promising botanical insecticide for application in integrated pest management programs. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Elton Luiz Scudeler
- Laboratory of Insects, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Bruno Vinicius Daquila
- Laboratory of Biological Control and Bioprospection of Insects. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Paraná, Brazil
| | - Shelly Favorito de Carvalho
- Electron Microscopy Center, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Helio Conte
- Laboratory of Biological Control and Bioprospection of Insects. Department of Biotechnology, Genetics and Cell Biology, State University of Maringá, Maringá, Paraná, Brazil
| | - Carlos Roberto Padovani
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Daniela Carvalho Dos Santos
- Laboratory of Insects, Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
- Electron Microscopy Center, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo, Brazil
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Abdel-Gaber R, Hawsah MA, Al-Shaebi EM, Al-Otaibi T, Thagfan FA, Al-Quraishy S, Dkhil MA. Effect of biosynthesized nanoselenium using Azadirachta indica (Meliaceae) leaf extracts against Eimeria papillata infection. Microsc Res Tech 2023; 86:714-724. [PMID: 37083178 DOI: 10.1002/jemt.24331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 04/22/2023]
Abstract
Coccidiosis is a protozoan parasitic disease affecting different animal species. Resistance has been reported for all available anticoccidial drugs. Recently, green synthesis of nanoparticles is considered a new therapeutic tool against this parasitic disease. The present work aimed to study the effect of biosynthesized nanoselenium from Azadirachta indica leaf extracts (BNS) against Eimeria papillata-induced infection in mice. The phytochemical analysis of leaf extracts contained 33 phytochemical components. The BNS was spherical with ⁓68.12 nm in diameter and an absorption peak at 308 nm via UV-spectra. The data showed that mice infected with E. papillata revealed the highest oocyst output on the 5th-day post-infection (p.i.). Infection also induced injury and inflammation of the mice jejunum. Treatment with BNS resulted in a 97.21% suppression for the oocyst output. The treated groups with BNS showed enhancement in feed intake as compared to the infected group. Histological examinations showed a significant reduction in the intracellular developmental Eimeria stages in the jejunal tissues of infected-treated mice of about 24.86 ± 2.38 stages/10 villous crypt units. Moreover, there was a significant change in the morphometry for Eimeria stages after the treatment with BNS. Infection induced a disturbance in the level of carbohydrates and protein contents in the infected mice which enhanced after treatment with BNS. In addition, BNS counteracted the E. papillata-induced loss of the total antioxidant capacity. Collectively, BNS is considered a promising anticoccidial and antioxidant effector and could be used for the treatment of coccidiosis.
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Affiliation(s)
- Rewaida Abdel-Gaber
- Department of Zoology, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Maysar Abu Hawsah
- Department of Zoology, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Esam M Al-Shaebi
- Department of Zoology, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Tahani Al-Otaibi
- Department of Science and Technology, Al-Nairiyah University College, University of Hafr Al-Batin, Hafr Al-Batin, Saudi Arabia
| | - Felwa A Thagfan
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Saleh Al-Quraishy
- Department of Zoology, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed A Dkhil
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
- Applied Science Research Center, Applied Science Private University, Amman, Jordan
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Catania R, Lima MAP, Potrich M, Sgolastra F, Zappalà L, Mazzeo G. Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)? INSECTS 2023; 14:247. [PMID: 36975932 PMCID: PMC10053700 DOI: 10.3390/insects14030247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
The recent global decline in insect populations is of particular concern for pollinators. Wild and managed bees (Hymenoptera, Apoidea) are of primary environmental and economic importance because of their role in pollinating cultivated and wild plants, and synthetic pesticides are among the major factors contributing to their decline. Botanical biopesticides may be a viable alternative to synthetic pesticides in plant defence due to their high selectivity and short environmental persistence. In recent years, scientific progress has been made to improve the development and effectiveness of these products. However, knowledge regarding their adverse effects on the environment and non-target species is still scarce, especially when compared to that of synthetic products. Here, we summarize the studies concerning the toxicity of botanical biopesticides on the different groups of social and solitary bees. We highlight the lethal and sublethal effects of these products on bees, the lack of a uniform protocol to assess the risks of biopesticides on pollinators, and the scarcity of studies on specific groups of bees, such as the large and diverse group of solitary bees. Results show that botanical biopesticides cause lethal effects and a large number of sublethal effects on bees. However, the toxicity is limited when comparing the effects of these compounds with those of synthetic compounds.
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Affiliation(s)
- Roberto Catania
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
| | - Maria Augusta Pereira Lima
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
- Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
| | - Michele Potrich
- Laboratório de Controle Biológico, Universidade Tecnológica Federal do Paraná—Dois Vizinhos (UTFPR-DV), Paraná 85660-000, Brazil
| | - Fabio Sgolastra
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Alma Mater Studiorum Università di Bologna, 40127 Bologna, Italy
| | - Lucia Zappalà
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
| | - Gaetana Mazzeo
- Dipartimento di Agricoltura, Alimentazione e Ambiente, Università degli Studi di Catania, 95123 Catania, Italy
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Mwanauta RW, Ndakidemi PA, Venkataramana PB. Biopesticide efficacy of four plant essential oils against papaya mealybug, Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae). Heliyon 2023; 9:e14162. [PMID: 36923866 PMCID: PMC10009090 DOI: 10.1016/j.heliyon.2023.e14162] [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: 12/03/2021] [Revised: 02/16/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023] Open
Abstract
Worldwide, P. marginatus causes 75% of estimated economic loss in papaya farming, with an increase in production costs. The extract of plant essential oils (PEO) has the potential to control P. marginatus by degrading its wax coatings to death; however, it is less studied in the East African agroecosystem. Therefore, this study was conducted to evaluate the efficacy of four PEO from (neem, citrus, garlic, and castor) against P. marginatus at different concentrations (0.5%, 1%, and 1.5%) with and without 0.2% adjuvants separately as a biopesticide. The experiment was conducted in a completely randomized design with four replications per treatment concentration. The papaya seeds (Carina variety) were used in the experiment. After 3 weeks from transplanting, 50 P. marginatus specimens were inoculated in each plant. Before treatment application, insect abundance, leaf curling, yellowing, and soot mold were assessed. Then, 24 h, 48 h, and 72 h after biopesticide application, insect mortality was assessed. The results showed a significant difference (p = 0.001) for all assessment intervals in PEOs. However, for the PEOs in combination with the adjuvants, the results were significantly different (p = 0.001) only at 24 h. It was found that among the biopesticides, neem oil (1.5%) + isopropyl alcohol was highly effective (95.5%) after 72 h followed by (Imidacloprid (91%), citrus oil 1.5% (90.7%) and neem oil (1.5%) + paraffin oil (81.0%). But also, there were significant differences among treatments on leaf curling, yellowing, and soot mold reduction in papaya plants 21 days after spray. We conclude that neem oil (1.5%) + 0.2% isopropyl alcohol, neem oil (1.5%) + paraffin oil, and citrus oil (1.5%) significantly controlled P. marginatus. Thus, we recommend adopting these formulations for papaya farmers to control P. marginatus in their farms; however, simple formulations which can be easily accessed by smallholder farmers are essential.
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Affiliation(s)
- Regina W. Mwanauta
- School of Life Sciences and Bioengineering (LiSBE), Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania
- Tanzania Plant Health and Pesticides Authority (TPHPA), P.O BOX 3024, Arusha, Tanzania
- Corresponding author. School of Life Sciences and Bioengineering (LiSBE), Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania.
| | - Patrick A. Ndakidemi
- School of Life Sciences and Bioengineering (LiSBE), Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania
| | - Pavithravani B. Venkataramana
- School of Life Sciences and Bioengineering (LiSBE), Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania
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16
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Pereira HC, Pereira FF, Insabrald VB, Rodrigues A, Lucchetta JT, Silva FWS, Fernandes WC, Carneiro ZDF, Périgo PHB, Zanuncio JC. Selectivity of Insecticides to a Pupal Parasitoid, Trichospilus diatraeae (Hymenoptera: Eulophidae), of Soybean Caterpillars. INSECTS 2023; 14:217. [PMID: 36975902 PMCID: PMC10053883 DOI: 10.3390/insects14030217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/14/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Selectivity is an important aspect of modern insecticides to be able to target pests whilst maintaining beneficial entomofauna in the crop. The present objective was to assess the selectivity of different insecticides for the pupal parasitoid of soybean caterpillars, i.e., Trichospilus diatraeae Cherian & Margabandhu, 1942 (Hymenoptera: Eulophidae). Acephate, azadirachtin, Bacillus thuringiensis (Bt), deltamethrin, lufenuron, teflubenzuron and thiamethoxam + lambda-cyhalothrin at the highest recommended concentrations for the soybean looper Chrysodeixis includens (Walker, [1858]) (Lepidoptera: Noctuidae), as well as water in the control, were used against the pupal parasitoid T. diatraeae. The insecticides and the control were sprayed on the soybean leaves, which were left to dry naturally and placed in cages with T. diatraeae females in each one. Survival data were submitted to analysis of variance (ANOVA) and the means were compared using Tukey's HSD test (α = 0.05). Survival curves were plotted according to the Kaplan-Meier method, and the pairs of curves were compared using the log-rank test at 5% probability. The insecticides azadirachtin, Bt, lufenuron and teflubenzuron did not affect T. diatraeae survival, while deltamethrin and thiamethoxam + lambda-cyhalothrin presented low toxicity and acephate was highly toxic, causing 100% mortality in the parasitoid. Azadirachtin, Bt, lufenuron and teflubenzuron are selective for T. diatraeae and could be used in IPM programs.
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Affiliation(s)
- Helter Carlos Pereira
- Departamento de Ciências Agrárias, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | - Fabricio Fagundes Pereira
- Departamento de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | - Vitor Bortolanza Insabrald
- Departamento de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | - Augusto Rodrigues
- Departamento de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | - Jéssica Terilli Lucchetta
- Departamento de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | | | - Winnie Cezario Fernandes
- Departamento de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | - Zenilda de Fatima Carneiro
- Departamento de Ciências Agrárias, Universidade Tecnológica Federal do Paraná, Pato Branco 85503, Brazil
| | - Pedro Henrique Breda Périgo
- Departamento de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados 79804, Brazil
| | - José Cola Zanuncio
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, Viçosa 36570, Brazil
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17
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De La Peña R, Hodgson H, Liu JCT, Stephenson MJ, Martin AC, Owen C, Harkess A, Leebens-Mack J, Jimenez LE, Osbourn A, Sattely ES. Complex scaffold remodeling in plant triterpene biosynthesis. Science 2023; 379:361-368. [PMID: 36701471 PMCID: PMC9976607 DOI: 10.1126/science.adf1017] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Triterpenes with complex scaffold modifications are widespread in the plant kingdom. Limonoids are an exemplary family that are responsible for the bitter taste in citrus (e.g., limonin) and the active constituents of neem oil, a widely used bioinsecticide (e.g., azadirachtin). Despite the commercial value of limonoids, a complete biosynthetic route has not been described. We report the discovery of 22 enzymes, including a pair of neofunctionalized sterol isomerases, that catalyze 12 distinct reactions in the total biosynthesis of kihadalactone A and azadirone, products that bear the signature limonoid furan. These results enable access to valuable limonoids and provide a template for discovery and reconstitution of triterpene biosynthetic pathways in plants that require multiple skeletal rearrangements and oxidations.
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Affiliation(s)
- Ricardo De La Peña
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Hannah Hodgson
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | | | - Michael J Stephenson
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Azahara C Martin
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Charlotte Owen
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Alex Harkess
- HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, USA
| | - Jim Leebens-Mack
- Department of Plant Biology, 4505 Miller Plant Sciences, University of Georgia, Athens, GA 30602, USA
| | - Luis E Jimenez
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
| | - Anne Osbourn
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Elizabeth S Sattely
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.,Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA
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Mossa ATH, Mohamed RI, Mohafrash SM. Development of a ‘green’ nanoformulation of neem oil-based nanoemulsion for controlling mosquitoes in the sustainable ecosystem. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Jayakodi S, Shanmugam R, Almutairi BO, Almutairi MH, Mahboob S, Kavipriya MR, Gandusekar R, Nicoletti M, Govindarajan M. Azadirachta indica-wrapped copper oxide nanoparticles as a novel functional material in cardiomyocyte cells: An ecotoxicity assessment on the embryonic development of Danio rerio. ENVIRONMENTAL RESEARCH 2022; 212:113153. [PMID: 35341753 DOI: 10.1016/j.envres.2022.113153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/15/2022] [Accepted: 03/18/2022] [Indexed: 06/14/2023]
Abstract
This research reports on the production of copper oxide nanoparticles (CuO NPs) through the green synthesis method using Azadirachta indica (Ai) flower extract. Synthesized Ai-CuO NPs are characterized by Zeta Potential, TGA, SEM and TEM analysis. The Ai-CuO NPs gave a maximum peak at 270 nm. As per XRD studies, the Ai-CuO NPs obtained were crystalline. FTIR spectrum Ai-CuO NPs showed the presence of functional groups like the O-H group, aromatic group, etc. TEM and SEM assist in investigating the size and morphology of the Ai-CuO NPs, which were spherical and varied in size between 10.11 nm and 17.54 nm. EDAX showed that Ai-CuO NPs were pure with no impurities. The synthesized Ai-CuO NPs were then analyzed for their cytotoxicity at various concentrations (5, 10, 20, 30, 40 and 50 μg/mL) against H9c2 cardiomyocyte cells using MTT assay. DOX-induced H9c2 cell damage of apoptosis and ROS. The nanoparticle formed by Ai-CuO was cured with different concentrations (5, 10 and 20 μg/mL). In zebrafish, 48 hpf and 72 hpf were measured at 75 μM to reduce dysfunction and mortality during organ development. These results can have a beneficial impact on eco-toxicological effects.
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Affiliation(s)
- Santhoshkumar Jayakodi
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Science (SIMATS), Chennai, 602105, TN, India
| | - Rajeshkumar Shanmugam
- Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Science (SIMATS), Chennai, 600077, TN, India.
| | - Bader O Almutairi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Riyadh, Saudi Arabia
| | - Mikhlid H Almutairi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Riyadh, Saudi Arabia
| | - Shahid Mahboob
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Riyadh, Saudi Arabia
| | - M R Kavipriya
- Department of Botany, School of Life Sciences, Bharathidasan University, Tiruchirappalli, 620024, Tamil Nadu, India
| | - Ramesh Gandusekar
- Department of Regenerative Medicine &Immune Regulation, Medical University of Bialystok (MUB), Poland
| | - Marcello Nicoletti
- Department of Environmental Biology, Sapienza University of Rome, Rome, 00185, Italy
| | - Marimuthu Govindarajan
- Unit of Natural Products and Nanotechnology, Department of Zoology, Government College for Women (Autonomous), Kumbakonam, 612 001, Tamil Nadu, India; Unit of Mycology and Parasitology, Department of Zoology, Annamalai University, Annamalainagar, 608 002, Tamil Nadu, India.
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20
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Babu A, Rodriguez-Saona C, Sial AA. Comparative Adult Mortality and Relative Attractiveness of Spotted-Wing Drosophila (Diptera: Drosophilidae) to Novel Attract-and-Kill (ACTTRA SWD) Formulations Mixed With Different Insecticides. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.846169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Since its first appearance in California in 2008 and subsequent spread across the continental United States, the spotted-wing drosophila, Drosophila suzukii Matsumura, has become an economically damaging pest of multiple stone and soft-skinned fruits in the United States. The adjuvant ACTTRA SWD, when mixed with a suitable insecticide, constitutes an innovative attract-and-kill tactic that can be applied as a sprayable bait to manage D. suzukii. As an adjuvant, growers can mix ACTTRA SWD with any insecticide recommended for D. suzukii management in a specific crop; however, to achieve this, the efficacy of this adjuvant incorporated with various insecticides needs testing. This research aims to test the suitability of nine insecticides added to two ACTTRA SWD formulations (named OR1 and TD) to maintain the formulation’s attractiveness to D. suzukii adults and in resulting mortality. We conducted a series of two-choice bioassays to test the relative attraction of D. suzukii to ACTTRA SWD formulations prepared with and without a specific insecticide. Additionally, we tested the efficacy of ACTTRA SWD formulations mixed with insecticides in managing D. suzukii by using no-choice efficacy bioassays. Adding Mustang Maxx (zeta-cypermethrin) to ACTTRA SWD OR1 significantly improved D. suzukii adult attraction to the formulation, while Azera (azadirachtin + pyrethrins) significantly reduced attraction to both ACTTRA SWD formulations. Among the insecticides tested, we identified Danitol (fenpropathrin), Exirel (cyantraniliprole), Malathion (malathion), Mustang Maxx, and Entrust (spinosad) as suitable insecticide additives for both ACTTRA SWD formulations. The results from this study will assist growers in selecting proper insecticide components when preparing attract-and-kill formulations of the new adjuvant ACTTRA SWD.
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21
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Teixeira GVM, De Souza AR, Barbosa WF, Bernardes RC, Lima MAP. Chronic exposure to a common biopesticide is detrimental to individuals and colonies of the paper wasp Polistes versicolor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:152108. [PMID: 34871682 DOI: 10.1016/j.scitotenv.2021.152108] [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: 06/16/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 05/26/2023]
Abstract
Risk assessments of agrochemicals on non-target insects are biased in studies with surrogate groups, such as pollinators. In social insects, such investigations are generally restricted to lethal tests with adults maintained individually, simulating a non-realistic scenario. Here, we performed a holistic approach to resemble a chronic field exposure of Polistes versicolor (Hymenoptera: Vespidae) to a common biopesticide. These wasps are predators that perform biological control in the agroecosystems. Wasps were chronically subjected to the ingestion of different concentrations of azadirachtin. The neonicotinoid imidacloprid was used as a positive control. For the first time, we demonstrated that the biopesticide azadirachtin is detrimental for individual and colony survival and impairs colony reproduction of a social wasp maintained in the laboratory. Our data also indicated that neonicotinoid imidacloprid is harmful to wasps and their colonies. Therefore, the concomitant use of azadirachtin and paper wasps in integrated pest management strategies should be carefully evaluated, because the constant use of this pesticide can be detrimental for social wasps, possibly reducing biological control.
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Affiliation(s)
- Gabrazane V M Teixeira
- Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
| | - André R De Souza
- Departamento de Biologia, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Wagner F Barbosa
- Departamento de Estatística, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil
| | - Rodrigo C Bernardes
- Departamento de Entomologia, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil
| | - Maria Augusta P Lima
- Departamento de Biologia Animal, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil.
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22
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Şengül Demirak MŞ, Canpolat E. Plant-Based Bioinsecticides for Mosquito Control: Impact on Insecticide Resistance and Disease Transmission. INSECTS 2022; 13:162. [PMID: 35206735 PMCID: PMC8878986 DOI: 10.3390/insects13020162] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/30/2022] [Accepted: 01/31/2022] [Indexed: 11/30/2022]
Abstract
The use of synthetic insecticides has been a solution to reduce mosquito-borne disease transmission for decades. Currently, no single intervention is sufficient to reduce the global disease burden caused by mosquitoes. Problems associated with extensive usage of synthetic compounds have increased substantially which makes mosquito-borne disease elimination and prevention more difficult over the years. Thus, it is crucial that much safer and effective mosquito control strategies are developed. Natural compounds from plants have been efficiently used to fight insect pests for a long time. Plant-based bioinsecticides are now considered a much safer and less toxic alternative to synthetic compounds. Here, we discuss candidate plant-based compounds that show larvicidal, adulticidal, and repellent properties. Our discussion also includes their mode of action and potential impact in mosquito disease transmission and circumvention of resistance. This review improves our knowledge on plant-based bioinsecticides and the potential for the development of state-of-the-art mosquito control strategies.
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Affiliation(s)
- Meryem Ş. Şengül Demirak
- Department of Molecular Biology and Genetics, Tokat Gaziosmanpaşa University, Tokat 60150, Turkey;
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23
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Dong C, Xie Y, Liang G. A Feasible Route to Access the ABD Skeleton in Azadirachtin-Type Limonoids. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202204048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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López-López J, Tejeda-Ochoa A, López-Beltrán A, Herrera-Ramírez J, Méndez-Herrera P. Sunlight Photocatalytic Performance of ZnO Nanoparticles Synthesized by Green Chemistry Using Different Botanical Extracts and Zinc Acetate as a Precursor. Molecules 2021; 27:6. [PMID: 35011237 PMCID: PMC8746174 DOI: 10.3390/molecules27010006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/06/2021] [Accepted: 12/16/2021] [Indexed: 12/03/2022] Open
Abstract
In this work, the assessment of Azadirachta indica, Tagetes erecta, Chrysanthemum morifolium, and Lentinula edodes extracts as catalysts for the green synthesis of zinc oxide nanoparticles (ZnO NPs) was performed. The photocatalytic properties of ZnO NPs were investigated by the photodegradation of methylene blue (MB) dye under sunlight irradiation. UV-visible (UV-Vis) spectroscopy, Fourier Transform Infrared (FTIR) spectroscopy, Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), Thermogravimetric (TGA), and Brunauer-Emmett-Teller analysis (BET) were used for the characterization of samples. The XRD results indicate that all synthesized nanoparticles have a hexagonal wurtzite crystalline structure, which was confirmed by TEM. Further, TEM analysis proved the formation of spherical and hemispherical nanoparticles of ZnO with a size in the range of 14-32 nm, which were found in aggregate shape; such a size was well below the size of the particles synthesized with no extract (~43 nm). ZnO NPs produced with Tagetes erecta and Lentinula edodes showed the best photocatalytic activity, matching with the maximum adsorbed MB molecules (45.41 and 58.73%, respectively). MB was completely degraded in 45 min using Tagetes erecta and 120 min using Lentinula edodes when subjected to solar irradiation.
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Affiliation(s)
- Juan López-López
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa, Av. Las Américas S/N, Culiacan 80000, Sinaloa, Mexico; (J.L.-L.); (A.L.-B.)
| | - Armando Tejeda-Ochoa
- Centro de Investigación en Materiales Avanzados, Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Chihuahua 31136, Chih, Mexico;
| | - Ana López-Beltrán
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa, Av. Las Américas S/N, Culiacan 80000, Sinaloa, Mexico; (J.L.-L.); (A.L.-B.)
| | - José Herrera-Ramírez
- Centro de Investigación en Materiales Avanzados, Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Chihuahua 31136, Chih, Mexico;
| | - Perla Méndez-Herrera
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa, Av. Las Américas S/N, Culiacan 80000, Sinaloa, Mexico; (J.L.-L.); (A.L.-B.)
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25
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Ali S, Li Y, Haq IU, Abbas W, Shabbir MZ, Khan MM, Mamay M, Niaz Y, Farooq T, Skalicky M, Zuan ATK, Nasif O, Ansari MJ. The impact of different plant extracts on population suppression of Helicoverpa armigera (Hub.) and tomato (Lycopersicon esculentum Mill) yield under field conditions. PLoS One 2021; 16:e0260470. [PMID: 34852006 PMCID: PMC8635350 DOI: 10.1371/journal.pone.0260470] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/11/2021] [Indexed: 11/19/2022] Open
Abstract
Helicoverpa armigera (Hub.) is a destructive pest of the tomato (Lycopersicon esculentum Mill) crop in Pakistan. Although insecticides are the primary management strategy used to control H. armigera, most of them are not effective due to considerable toxic residual effects on the fruits. Nonetheless, H. armigera is rapidly evolving resistance against the available pesticides for its management. This situation calls upon the need of alternative management options against the pest. Different plant extracts have been suggested as a viable, environment-friendly option for plant protection with minimal side effects. Furthermore, the plant extracts could also manage the insect species evolving resistance against pesticides. This study evaluated the efficacy of different plant extracts (i.e., Neem seed, turmeric, garlic and marsh pepper) against H. armigera. Furthermore, the impact of the plant extracts on growth and yield of tomato crop was also tested under field conditions. The results revealed that all plant extracts resulted in higher mortality of H. armigera compared to control. Similarly, the highest plant height was observed for the plants treated with the plant extracts compared to untreated plants. Moreover, the highest tomato yield was observed in plants treated with plant extracts, especially with neem seed (21.013 kg/plot) followed by pepper extract (19.25 kg/plot), and garlic extract 18.4 kg/plot) compared to the untreated plants (8.9 kg/plot). It is concluded that plant extracts can be used as eco-friendly approaches for improving tomato yield and resistance management of H. armigera.
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Affiliation(s)
- Shahbaz Ali
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, Guizhou, China
- Department of Agricultural Engineering, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan
- * E-mail: (SA); (ATKZ); (YL)
| | - Yunzhou Li
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, Guizhou, China
- * E-mail: (SA); (ATKZ); (YL)
| | - Inzamam Ul Haq
- Department of Plant Protection, College of Crop Protection, Gansu Agricultural University, Lanzhou, China
| | - Waseem Abbas
- Department of Entomology, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Zeeshan Shabbir
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong, China
| | - Muhammad Musa Khan
- Key Laboratory Bio Pesticide Innovation and Application, Engineering Research Centre of Biological Control, South China Agriculture University, Guangzhou, P. R. China
| | - Mehmet Mamay
- Department of Plant Protection, Faculty of Agriculture, Harran University, Şanlıurfa, Turkey
| | - Yasir Niaz
- Department of Agricultural Engineering, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan
| | - Tahir Farooq
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong, China
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czechia
| | - Ali Tan Kee Zuan
- Department of Land Management, Faculty of Agriculture, Universiti Putra Malaysia, Selangor, Malaysia
- * E-mail: (SA); (ATKZ); (YL)
| | - Omaima Nasif
- Department of Physiology, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, Riyadh, Saudi Arabia
| | - Mohamad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), India
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26
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Kostić I, Lazarević J, Šešlija Jovanović D, Kostić M, Marković T, Milanović S. Potential of Essential Oils from Anise, Dill and Fennel Seeds for the Gypsy Moth Control. PLANTS (BASEL, SWITZERLAND) 2021; 10:2194. [PMID: 34686003 PMCID: PMC8538750 DOI: 10.3390/plants10102194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/05/2021] [Accepted: 10/11/2021] [Indexed: 11/21/2022]
Abstract
The gypsy moth (Lymantria dispar L. (Lepidoptera: Erebidae)) is a serious pest of hardwood forests. In the search for an environmentally safe means of its control, we assessed the impact of different concentrations of essential oils (EOs) from the seeds of three Apiaceae plants (anise Pimpinella anisum, dill Anethum graveolens, and fennel Foeniculum vulgare) on behavior, mortality, molting and nutritional physiology of gypsy moth larvae (GML). EOs efficacy was compared with commercial insecticide NeemAzal®-T/S (neem). The main compounds in the Eos were trans-anethole in anise; carvone, limonene, and α-phellandrene in dill; and trans-anethole and fenchone in fennel seed. At 1% EOs concentration, anise and fennel were better antifeedants and all three EOs were more toxic than neem. Neem was superior in delaying 2nd to 3rd larval molting. In the 4th instar, 0.5%, anise and fennel EOs decreased relative consumption rate more than neem, whereas all three EOs were more effective in reducing growth rate, approximate digestibility and efficiency of conversion of food into body mass leading to higher metabolic costs to GML. Decrease in consumption and metabolic parameters compared to control GML confirmed that adverse effects of the EOs stem from both pre- and post-ingestive mechanisms. The results indicate the potential of three EOs to be used for gypsy moth control.
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Affiliation(s)
- Igor Kostić
- Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia;
| | - Jelica Lazarević
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia;
| | - Darka Šešlija Jovanović
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia;
| | - Miroslav Kostić
- Institute for Medicinal Plant Research “Dr Josif Pančić”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia; (M.K.); (T.M.)
| | - Tatjana Marković
- Institute for Medicinal Plant Research “Dr Josif Pančić”, Tadeuša Košćuška 1, 11000 Belgrade, Serbia; (M.K.); (T.M.)
| | - Slobodan Milanović
- Faculty of Forestry, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia; or
- Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University, Zemědělská 3, 613 00 Brno, Czech Republic
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27
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Zhu K, Kong J, Zhao B, Rong L, Liu S, Lu Z, Zhang C, Xiao D, Pushpanathan K, Foo JL, Wong A, Yu A. Metabolic engineering of microbes for monoterpenoid production. Biotechnol Adv 2021; 53:107837. [PMID: 34555428 DOI: 10.1016/j.biotechadv.2021.107837] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 12/29/2022]
Abstract
Monoterpenoids are an important class of natural products that are derived from the condensation of two five‑carbon isoprene subunits. They are widely used for flavouring, fragrances, colourants, cosmetics, fuels, chemicals, and pharmaceuticals in various industries. They can also serve as precursors for the production of many industrially important products. Currently, monoterpenoids are produced predominantly through extraction from plant sources. However, the small quantity of monoterpenoids in nature renders this method of isolation non-economically viable. Similarly impractical is the chemical synthesis of these compounds as they suffer from high energy consumption and pollutant discharge. Microbial biosynthesis, however, exists as a potential solution to these hindrances, but the transformation of cells into efficient factories remains a major impediment. Here, we critically review the recent advances in engineering microbes for monoterpenoid production, with an emphasis on categorized strategies, and discuss the challenges and perspectives to offer guidance for future engineering.
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Affiliation(s)
- Kun Zhu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Jing Kong
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Baixiang Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Lanxin Rong
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Shiqi Liu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Zhihui Lu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Cuiying Zhang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Dongguang Xiao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Krithi Pushpanathan
- Chemical Engineering and Food Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore.
| | - Jee Loon Foo
- Synthetic Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
| | - Adison Wong
- Chemical Engineering and Food Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore.
| | - Aiqun Yu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
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28
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Mohammed LS, Sallam EA, El basuni SS, Eldiarby AS, Soliman MM, Aboelenin SM, Shehata SF. Ameliorative Effect of Neem Leaf and Pomegranate Peel Extracts in Coccidial Infections in New Zealand and V-Line Rabbits: Performance, Intestinal Health, Oocyst Shedding, Carcass Traits, and Effect on Economic Measures. Animals (Basel) 2021; 11:ani11082441. [PMID: 34438898 PMCID: PMC8388781 DOI: 10.3390/ani11082441] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 01/13/2023] Open
Abstract
Healthy, weaned, coccidial-free male rabbits from two breeds (New Zealand white (NZ) and V-line (VL)) were divided into 10 equal groups (5 groups each for NZ and VL) (3 replicates/group, 6 rabbits/replicate, 18 rabbits/group). All rabbits were inoculated with 5 × 104 Eimeria spp. oocysts (E. intestinalis (67%), E. magna (22%), and E. media (11%)) except for the rabbits in the first group (G1), which were inoculated with a sterile solution and served as a negative control. The remaining four groups were treated as follows: G2, no treatment/positive control, G3, treated with neem leaf extract, G4, treated with pomegranate peel extract (PPE), and G5, treated with a combination of neem leaf extract and PPE. For both breeds, our results showed that the use of neem leaf and/or pomegranate peel extract resulted in improved growth performance, with a significant improvement in relative feed conversion ratio (FCR) compared to the positive control groups, which recorded the worst values, as well as a significant (p ≤ 0.05) reduction in mean oocyst count compared to the positive control groups. We also observed downregulation of mRNA levels of IL-1βα, IL6, and TNF-α in the herbal treatment groups compared with the mRNA levels of these genes in the positive control groups. Herbal treatment with neem leaf and/or pomegranate peel extracts had positive effects on the NZ and VL rabbits experimentally infected with mixed Eimeria species, as evidenced by their healthy appearance, good appetite, no mortalities, an anticoccidial index > 120, and a significantly higher total return and net profit when compared to the positive control groups of both breeds. In NZ rabbits, the treatment with neem leaf extract alone (G3) or in combination with PPE (G5) recorded the most efficient economic anticoccidial activity.
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Affiliation(s)
- Liza S. Mohammed
- Veterinary Economics and Farm Management, Department of Animal Wealth Development, Faculty of Veterinary Medicine, Benha University, Benha 13736, Egypt;
- Correspondence:
| | - Eman A. Sallam
- Animal and Poultry Production, Department of Animal Wealth Development, Faculty of Veterinary Medicine, Benha University, Benha 13736, Egypt;
| | - Sawsan S. El basuni
- Avian and Rabbit Diseases Department, Faculty of Veterinary Medicine, Benha University, Benha 13736, Egypt;
| | - Amany S. Eldiarby
- Parasitology Department, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Benha University, Benha 13736, Egypt;
| | - Mohamed Mohamed Soliman
- Clinical Laboratory Sciences Department, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Salama Mostafa Aboelenin
- Biology Department, Turabah University College, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Seham F. Shehata
- Veterinary Economics and Farm Management, Department of Animal Wealth Development, Faculty of Veterinary Medicine, Benha University, Benha 13736, Egypt;
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29
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Souto AL, Sylvestre M, Tölke ED, Tavares JF, Barbosa-Filho JM, Cebrián-Torrejón G. Plant-Derived Pesticides as an Alternative to Pest Management and Sustainable Agricultural Production: Prospects, Applications and Challenges. Molecules 2021; 26:4835. [PMID: 34443421 PMCID: PMC8400533 DOI: 10.3390/molecules26164835] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 11/24/2022] Open
Abstract
Pests and diseases are responsible for most of the losses related to agricultural crops, either in the field or in storage. Moreover, due to indiscriminate use of synthetic pesticides over the years, several issues have come along, such as pest resistance and contamination of important planet sources, such as water, air and soil. Therefore, in order to improve efficiency of crop production and reduce food crisis in a sustainable manner, while preserving consumer's health, plant-derived pesticides may be a green alternative to synthetic ones. They are cheap, biodegradable, ecofriendly and act by several mechanisms of action in a more specific way, suggesting that they are less of a hazard to humans and the environment. Natural plant products with bioactivity toward insects include several classes of molecules, for example: terpenes, flavonoids, alkaloids, polyphenols, cyanogenic glucosides, quinones, amides, aldehydes, thiophenes, amino acids, saccharides and polyketides (which is not an exhaustive list of insecticidal substances). In general, those compounds have important ecological activities in nature, such as: antifeedant, attractant, nematicide, fungicide, repellent, insecticide, insect growth regulator and allelopathic agents, acting as a promising source for novel pest control agents or biopesticides. However, several factors appear to limit their commercialization. In this critical review, a compilation of plant-derived metabolites, along with their corresponding toxicology and mechanisms of action, will be approached, as well as the different strategies developed in order to meet the required commercial standards through more efficient methods.
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Affiliation(s)
- Augusto Lopes Souto
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa 58051-900, Brazil; (A.L.S.); (J.F.T.); (J.M.B.-F.)
| | - Muriel Sylvestre
- COVACHIM-M2E Laboratory EA 3592, Department of Chemistry, Fouillole Campus, University of the French West Indies, UFR Sciences Exactes et Naturelles, CEDEX, 97157 Pointe-à-Pitre, France;
| | - Elisabeth Dantas Tölke
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil;
| | - Josean Fechine Tavares
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa 58051-900, Brazil; (A.L.S.); (J.F.T.); (J.M.B.-F.)
| | - José Maria Barbosa-Filho
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa 58051-900, Brazil; (A.L.S.); (J.F.T.); (J.M.B.-F.)
| | - Gerardo Cebrián-Torrejón
- COVACHIM-M2E Laboratory EA 3592, Department of Chemistry, Fouillole Campus, University of the French West Indies, UFR Sciences Exactes et Naturelles, CEDEX, 97157 Pointe-à-Pitre, France;
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Global Trends of Green Pesticide Research from 1994 to 2019: A Bibliometric Analysis. J Toxicol 2021; 2021:6637516. [PMID: 33828589 PMCID: PMC8004376 DOI: 10.1155/2021/6637516] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/09/2021] [Accepted: 03/02/2021] [Indexed: 11/17/2022] Open
Abstract
The fast-growing world population places food production under enormous pressure to ensure food security. One of the most common methods to increase food production is the use of pesticides, but the continuous use thereof has numerous detrimental effects on the environment. The interest in biopesticides for a possible substitute has grown over the past two decades. To determine the research evolution of biopesticides (green pesticides), a bibliometric analysis from 1994 to 2019 was carried out. A total of 580 documents were found eligible in the Scopus database for this analysis. Parameters such as the number of articles, article citations, keywords, source impact, and countries of publication were used to analyse the documents and rank countries based on authors, productivity, article citations, and co-authorship. The analysis reveals production increased significantly from 2009 and has the most published documents in 2019 with a total of 74 articles. Asia's most populous countries, India and China, were ranked first and second, respectively, and the USA third in terms of the most productive countries in the field of plant biopesticides. Countries in Europe and Africa however have fewer publications than expected in this field, given the fact that they are high consumers of pesticides. India, China, and the USA have 4.08%, 2.94%, and 12.5% multiple country publications (MCPs), respectively, with the USA having a stronger collaboration. Finally, there is a clear indication in this study that India and China are taking the lead in substituting synthetic pesticides with the alternative natural plant biopesticide.
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Chatterjee A, Bhattacharya R, Chatterjee S, Saha NC. Acute toxicity of organophosphate pesticide profenofos, pyrethroid pesticide λ cyhalothrin and biopesticide azadirachtin and their sublethal effects on growth and oxidative stress enzymes in benthic oligochaete worm, Tubifex tubifex. Comp Biochem Physiol C Toxicol Pharmacol 2021; 242:108943. [PMID: 33220514 DOI: 10.1016/j.cbpc.2020.108943] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/29/2020] [Accepted: 11/14/2020] [Indexed: 01/30/2023]
Abstract
The present study was aimed to assess the acute toxicity of organophosphate pesticide, profenofos; synthetic pyrethroid pesticide, λ cyhalothrin and biopesticide, azadirachtin and their sublethal effects on growth rate and oxidative stress biomarkers in Tubifex tubifex in vivo. The results showed that 96 h LC50 value of profenofos, λ cyhalothrin and azadirachtin to Tubifex tubifex are 0.59, 0.13 and 82.15 mg L-1 respectively. Pesticide treated worms showed several behavioral abnormalities including increased mucus secretion, erratic movements, wrinkling activity and decreased clumping tendency during acute exposure. The percentage of autotomy increased significantly (p < 0.05) with the increasing concentration of the pesticides at 96 h of exposure. Sublethal concentrations of profenofos (0.059 and 0.118 mg L-1), λ cyhalothrin (0.013 and 0.026 mg L-1) and azadirachtin (8.2 and 16.4 mg L-1) caused significant alterations in growth rate and oxidative stress enzymes in T. tubifex during 14 days exposure period. The growth rate of the pesticide exposed worms decreased significantly (P < 0.05) in a concentration and duration-dependent manner. Superoxide dismutase (SOD), reduced glutathione (GSH), glutathione-s-transferase (GST) and glutathione peroxidase (GPx) demonstrated a noteworthy (p < 0.05) initial induction followed by a subsequent reduction, while catalase (CAT) and malondialdehyde (MDA) exhibited noteworthy induction (p < 0.05) all through the exposure time. Through principal component analysis, correlation matrix, and integrated biomarker response, the effects of profenofos, λ cyhalothrin and azadirachtin on T. tubifex were distinguished. These results indicate that exposure to profenofos, λ cyhalothrin and azadirachtin affect survivability, change the behavioral responses, reduce the growth rate and induce oxidative stress enzymes in T. tubifex.
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Affiliation(s)
- Arnab Chatterjee
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan 713104, West Bengal, India
| | - Ritwick Bhattacharya
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan 713104, West Bengal, India
| | - Soumendranath Chatterjee
- Parasitology & Microbiology Research Laboratory, Department of Zoology, The University of Burdwan, Burdwan, West Bengal, India
| | - Nimai Chandra Saha
- Fishery and Ecotoxicology Research Laboratory (Vice-Chancellor's Research Group), Department of Zoology, The University of Burdwan, Burdwan 713104, West Bengal, India.
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Qin D, Zhou Y, Zhang P, Liu B, Zheng Q, Zhang Z. Azadirachtin downregulates the expression of the CREB gene and protein in the brain and directly or indirectly affects the cognitive behavior of the Spodoptera litura fourth-instar larvae. PEST MANAGEMENT SCIENCE 2021; 77:1873-1885. [PMID: 33284470 DOI: 10.1002/ps.6212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/21/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Azadirachtin has the potential to be used for pest control. Nevertheless, few studies have investigated the effects of azadirachtin on the cognitive behavior of pests. In this study, expression of the cAMP response element-binding protein (CREB) and its gene were studied via a series of experiments in Spodoptera litura larvae treated with azadirachtin. RESULTS RNA-Seq analysis of S. litura larvae treated with azadirachtin was undertaken. According to Kyoto Encyclopedia of Genes and Genomes analysis, the top 20 enriched pathways included neuroactive ligand-receptor interaction pathways, with seven significantly differentially expressed genes including CREB. Quantitative real time polymerase chain reaction (qRT-PCR) results indicated that the CREB gene was expressed during all developmental stages of S. litura, but relative expression of the CREB gene was significantly downregulated after treatment with azadirachtin. Grayscale statistical analysis also showed that expression levels of protein kinase A (PKA), extracellular signal-regulated kinase (ERK) and CREB proteins were significantly downregulated after treatment with azadirachtin. Moreover, RNA interference results showed that the effect of azadirachtin on the cognitive behavior of S. litura was consistent with that seen after interfering with CREB. In addition, larval selectivity to addictive odor sources was reduced, and the initial reaction time was increased. CONCLUSIONS This study clarified that azadirachtin can affect the cognitive behavior of S. litura and treatment with azadirachtin resulted in a downregulation of gene and protein expression of CREB and its pathway proteins. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Deqiang Qin
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - You Zhou
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Peiwen Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Benju Liu
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Qun Zheng
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Zhixiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
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Qin D, Liu B, Zhang P, Zheng Q, Luo P, Ye C, Zhao W, Zhang Z. Treating green pea aphids, Myzus persicae, with azadirachtin affects the predatory ability and protective enzyme activity of harlequin ladybirds, Harmonia axyridis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 212:111984. [PMID: 33517036 DOI: 10.1016/j.ecoenv.2021.111984] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/20/2021] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
As a natural enemy of green peach aphids, harlequin ladybirds, Harmonia axyridis Pallas (Coleoptera: Coccinellidae), are also indirectly affected by azadirachtin. In this study, we evaluated the effects of ladybird exposure to azadirachtin through azadirachtin-treated aphids. About 2 mg/L azadirachtin treated aphid can deliver the azadirachtin to ladybird larvae in 12 and 24 h. And azadirachtin treatment affected the rate at which fourth instar larvae and adult ladybirds preyed on aphids. Furthermore, the antifeedant effect increased with increasing azadirachtin concentrations. Twelve hours after exposing fourth instar ladybird larvae to aphids treated with 10 mg/L azadirachtin, the antifeedant effect was 47.70%. Twelve hours after exposing adult ladybirds to aphids treated with 2 mg/L azadirachtin, the antifeedant effect was 67.49%. Forty-eight hours after exposing ladybird larvae to azadirachtin-treated aphids, their bodyweights were 8.37 ± 0.044 mg (2 mg/L azadirachtin), 3.70 ± 0.491 mg (10 mg/L azadirachtin), and 2.39 ± 0.129 mg (50 mg/L azadirachtin). Treatment with azadirachtin affected the ability of ladybirds to prey on aphids. The results indicated that the instant attack rate of ladybird larvae and adults and the daily maximum predation rate were reduced by azadirachtin treatment. Superoxide dismutase (SOD), peroxidase (POD), and peroxide (CAT) enzyme activities of ladybirds were affected after feeding on aphids treated with azadirachtin. Azadirachtin has certain antifeedant effects on ladybirds and affects the ability of ladybirds to prey on aphids and the activities of SOD, POD, and CAT enzymes, which results in inhibition of normal body development.
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Affiliation(s)
- Deqiang Qin
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Benju Liu
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Peiwen Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Qun Zheng
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Peiru Luo
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Cuiyi Ye
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Weihua Zhao
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zhixiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China.
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Farder-Gomes CF, Saravanan M, Martínez LC, Plata-Rueda A, Zanuncio JC, Serrão JE. Azadirachtin-based biopesticide affects the respiration and digestion in Anticarsia gemmatalis caterpillars. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1892764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Meenakshi Saravanan
- Karunya Institute of Technology and Sciences, Coimbatore, India
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brasil
| | | | | | - José Cola Zanuncio
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brasil
| | - José Eduardo Serrão
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brasil
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Trichilianones A-D, Novel Cyclopropane-Type Limonoids from Trichilia adolfi. Molecules 2021; 26:molecules26041019. [PMID: 33671969 PMCID: PMC7919047 DOI: 10.3390/molecules26041019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 01/19/2023] Open
Abstract
The fractionation of an ethanol extract of the bark of Trichilia adolfi yielded four novel limonoids (trichilinones A-D, 1-4), with five fused rings and related to the hortiolide-type limonoids. Starting with an ε-lactone, which is α,β-unsaturated in trichilinones A and D (1 and 4), attached to a tetrahydrofuran ring that is connected to an unusual bicyclo [5.1.0] hexane system, joined with a cyclopentanone with a 3-furanyl substituent [(2-oxo)-furan-(5H)-3-yl in trichilinone D (4)], the four compounds isolated display a new 7/5/3/5/5 limonoid ring system. Their structures were established based on extensive analysis of NMR spectroscopic data. As the crude extract possessed anti-leishmanial properties, the compounds were assayed for cytotoxic and anti-parasitic activities in vitro in murine macrophages cells (Raw 264.7) and leishmania promastigotes (L. amazoniensis and L. braziliensis), respectively. The compounds showed moderate cytotoxicity (approximately 70 μg/mL), but are not responsible for the leishmanicidal effect of the extract.
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Lian X, Zhang X, Wang F, Wang X, Xue Z, Qi X. Characterization of a 2,3-oxidosqualene cyclase in the toosendanin biosynthetic pathway of Melia toosendan. PHYSIOLOGIA PLANTARUM 2020; 170:528-536. [PMID: 32794175 DOI: 10.1111/ppl.13189] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/06/2020] [Accepted: 08/11/2020] [Indexed: 05/25/2023]
Abstract
Toosendanin, bearing a furan ring, is a limonoid belonging to the group of tetranortriterpenoids. Toosendanin is a phytochemical found in the medicinal plant Melia toosendan Sieb. et Zucc. of the Meliaceae family. Toosendanin and its derivatives demonstrate high insecticidal activity and are important pesticides derived from plants. Despite intensive investigation of limonoids over several decades, the biosynthetic pathway of these triterpenoids is less understood. To identify the key enzymes involved in the toosendanin biosynthetic pathway, we analyzed the contents of toosendanin in various plant tissues and parts and found that the highest level of toosendanin was found in the developing fruit and gradually decreased as the fruit matured. More than 346 116 transcripts were assembled based on 394 million paired-end Illumina reads and 6 million PacBio reads from the pooled RNA samples of fruits, leaves and young barks. A total of 186 263 genes were predicted. Six 2,3-oxidosqualene cyclase (OSC) genes were identified by analyzing the association between gene expression and metabolite profiles. Functional analyses using the Nicotiana benthamiana transient expression assay showed that MtOSC1 catalyzed 2,3-oxidosqualene to produce a tetracyclic triterpene skeleton, tirucalla-7,24-dien-3β-ol, which is predicted as the precursor for toosendanin biosynthesis. We identified another OSC, MtOSC6, which is a lupeol synthase. Using synthetic biology methods, these identified enzymes could be used to model a biosynthetic pathway to produce large quantities of toosendanin.
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Affiliation(s)
- Xufan Lian
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Xiuli Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, 150040, China
| | - Fei Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Xiaoning Wang
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Zheyong Xue
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, 150040, China
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, 150040, China
| | - Xiaoquan Qi
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
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Abstract
Ranging from the skin to liver, body has an in-built detox system that keeps it running
smoothly on a daily basis. Due to the present life-style, increased stress, pollution, unhealthy dietary
habits, the natural system gets weakened. The need of present time is to unveil the herbs present in
the nature full of detox potential, inheriting the capacity to purify the kidney, liver, gut, skin and
blood. These herbal detoxifiers facilitate lungs, aids kidneys, facilitates digestive tract and skin. The
present review deals with the study of herbs under the category of detoxifiers for kidney, liver, gut,
skin and blood. The herbs were studied by sectioning them for their detoxification potential for the
major organs of the body. The use of herbal agents to detox the major organs of the body not only
helps to remove the toxins but also increases the overall energy and efficiency of the body.
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Affiliation(s)
| | | | - Ankita Wal
- Pharmacy Department, PSIT, Kanpur, India
| | - Pranay Wal
- Pharmacy Department, PSIT, Kanpur, India
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Yang WQ, Shao XH, Deng F, Hu LJ, Xiong Y, Huang XJ, Fan CL, Jiang RW, Ye WC, Wang Y. Unprecedented Quassinoids from Eurycoma longifolia: Biogenetic Evidence and Antifeedant Effects. JOURNAL OF NATURAL PRODUCTS 2020; 83:1674-1683. [PMID: 32310646 DOI: 10.1021/acs.jnatprod.0c00244] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Six new quassinoids (1-6) were isolated from the roots of Eurycoma longifolia, and their structures with absolute configurations were determined unambiguously by spectroscopic analyses and single-crystal X-ray crystallographic experiments. Compounds 1 and 2 are the first members of a new class of quassinoids with an unusual C26 carbon skeleton. Compound 6 features a C20 cage-like scaffold with an unprecedented densely functionalized 2,5-dioxatricyclo[5.2.2.04,8]undecane core. The discovery of the two C26 quassinoids 1 and 2 has provided firm evidence for the better understanding the biogenetic process from C30 triterpenoid precursors to quassinoids. Compound 5 exhibited significant antifeedant activity on the diamondback moth (DBM) larvae and excellent systemic absorption and accumulated properties in Brassica chinensis.
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Affiliation(s)
- Wei-Qun Yang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Xue-Hua Shao
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong 510640, People's Republic of China
| | - Fang Deng
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Li-Jun Hu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Yu Xiong
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Chun-Lin Fan
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Ren-Wang Jiang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Ying Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
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Aribi N, Denis B, Kilani-Morakchi S, Joly D. [Azadirachtin, a natural pesticide with multiple effects]. Med Sci (Paris) 2020; 36:44-49. [PMID: 32014097 DOI: 10.1051/medsci/2019268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
There are many studies devoted to the negative impact of conventional pesticides that effectively control pests, but cause widespread environmental pollution. As a result, interest is growing in pesticides of a natural origin with a lower environmental impact. Among them, azadirachtin, sold under various formulations (neem oil, Neem-Azal, Bioneem, etc.), is still the most widely recommended molecule in agricultural ecosystems. Azadirachtin has also been used in traditional medicine for centuries, and studies published over the past few years have tended to support its therapeutic use. Yet the argument that azadirachtin is harmless to the environment has been offset by its notable collateral and controversial effects on non-target organisms. The present paper summarizes the work already done in this field.
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Affiliation(s)
- Nadia Aribi
- Laboratoire de Biologie Animale Appliquée. Faculté des Sciences. Université Badji Mokhtar Annaba. BP12, 23000, Annaba, Algérie
| | - Béatrice Denis
- Laboratoire Évolution, Génomes, Comportement, Écologie, UMR 9191, CNRS, IRD, Université Paris-Sud et Université Paris-Saclay, avenue de la Terrasse, F-91198 Gif-sur-Yvette, France
| | - Samira Kilani-Morakchi
- Laboratoire de Biologie Animale Appliquée. Faculté des Sciences. Université Badji Mokhtar Annaba. BP12, 23000, Annaba, Algérie
| | - Dominique Joly
- Laboratoire Évolution, Génomes, Comportement, Écologie, UMR 9191, CNRS, IRD, Université Paris-Sud et Université Paris-Saclay, avenue de la Terrasse, F-91198 Gif-sur-Yvette, France
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Zhou Y, Qin DQ, Zhang PW, Liu BJ, Chen XT, Zhang ZX. The comparative metabolic response of Bactrocera dorsalis larvae to azadirachtin, pyriproxyfen and tebufenozide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:110020. [PMID: 31809954 DOI: 10.1016/j.ecoenv.2019.110020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/11/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
Azadirachtin, as the most promising and effective botanical insecticide, exhibits significant growth inhibition activity against agricultural and forestry pests. However, its biochemical effects at the metabolic level compared with those of other insect growth regulators have not been studied. Therefore, in this study, a GC-MS based untargeted metabolomics approach was applied to compare azadirachtin with pyriproxyfen (a juvenile hormone analog) and tebufenozide (a molting hormone analog) in terms of their metabolic effects on Bactrocera dorsalis larvae. The bioactivity of azadirachtin against B. dorsalis larvae was significantly different than those of pyriproxyfen and tebufenozide. A total of 693 mass features were recognized, and 112 metabolites were identified in this study. The results showed that a total of 16, 13 and 10 differentially regulated metabolites corresponding to 12, 5 and 8 pathways occur in Aza versus CK, Pyr versus CK and Teb versus CK group, respectively. Further analysis showed that 6 differentially regulated metabolites corresponding to 5 key pathways could be the primary differential metabolic response of B. dorsalis larvae to the three insect growth regulators. The pathways were myo-inositol corresponding to ascorbate and aldarate metabolism as the specific response of B. dorsalis larvae to azadirachtin; xylitol, xylulose and 3-aminopropionitrile corresponding to pentose and glucuronate interconversions, and cyanoamino acid metabolism as the common responses to azadirachtin and pyriproxyfen; and 3-hydroxypropionic acid and beta-alanine corresponding to propanoate metabolism and beta-alanine metabolism as the specific responses to tebufenozide. The results showed that the metabolic response of B. dorsalis larvae to azadirachitin is closer to that of pyriproxyfen than tebufenozide. The differentially regulated metabolites and pathways responsible for this difference are discussed.
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Affiliation(s)
- You Zhou
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - De-Qiang Qin
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Pei-Wen Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Ben-Ju Liu
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Xiao-Tian Chen
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zhi-Xiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China.
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Dong C, Qiao T, Xie Y, Zhang X, Ao J, Liang G. Rapid construction of the ABD tricyclic skeleton in meliacarpinin B from carvone enabled by an INOC strategy. Org Chem Front 2020. [DOI: 10.1039/d0qo00576b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A highly diastereoselective synthesis of the ABD skeleton of meliacarpinin B is presented.
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Affiliation(s)
- Changming Dong
- State Key Laboratory of Elemento-organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Tianjiao Qiao
- State Key Laboratory of Elemento-organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Yi Xie
- State Key Laboratory of Elemento-organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Xiao Zhang
- State Key Laboratory of Elemento-organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Junli Ao
- State Key Laboratory of Elemento-organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Guangxin Liang
- School of Physial Science and Technology
- ShanghaiTech University
- Shanghai 201210
- China
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Zhao T, Lai D, Zhou Y, Xu H, Zhang Z, Kuang S, Shao X. Azadirachtin A inhibits the growth and development of Bactrocera dorsalis larvae by releasing cathepsin in the midgut. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109512. [PMID: 31398584 DOI: 10.1016/j.ecoenv.2019.109512] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/13/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Azadirachtin, a botanical insecticide with high potential, has been widely used in pest control. Azadirachtin has shown strong biological activity against Bactrocera dorsalis in toxicological reports, but its mechanism remains unclear. This study finds that azadirachtin A inhibits the growth and development of Bactrocera dorsalis larvae. The larval weights and body sizes of the azadirachtin-treated group were significantly less than those of the control group in a concentration-dependent manner. Further, pathological sections revealed that azadirachtin destroyed the midgut cell structure and intestinal walls, while TUNEL staining showed that azadirachtin could induce apoptosis of midgut cells, and Western blot analysis indicated that Bcl-XL expression was inhibited and cytochrome c (CytC) released into the cytoplasm. The results also imply azadirachtin-induced structural alterations in the Bactrocera dorsalis larvae midgut by activation of apoptosis. RNA-seq analysis of midgut cells found that 482 and 708 unique genes were upregulated and downregulated, respectively. These differentially expressed genes (DEGs) were enriched in apoptotic and lysosomal signaling pathways and included 26 genes of the cathepsin family. qRT-PCR verified the expression patterns of some DEGs, indicating that Cathepsin F was upregulated by 278.47-fold and that Cathepsin L and Cathepsin D were upregulated by 28.06- and 8.97-fold, respectively. Finally, association analysis between DEGs and DEMs (differentially expressed metabolites) revealed that azadirachtin significantly reduced the digestion and absorption of carbohydrates, proteins, fats, vitamins and minerals in the midgut. In conclusion, azadirachtin induces the release of cathepsin from lysosomes, causing apoptosis in the midgut. Ultimately, this leads to reduced digestion and absorption of nutrient metabolites in the midgut and inhibition of the growth and development of Bactrocera dorsalis larvae.
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Affiliation(s)
- Tianyi Zhao
- College of Animal Science and Technology, Shihezi University, Xinjiang, 832003, China
| | - Duo Lai
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - You Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Hanhong Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zhixiang Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China.
| | - Shizi Kuang
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
| | - Xuehua Shao
- Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization (MOA), Guangdong Province Key Laboratory of Tropical and Subtropical Fruit Tree Research, Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
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Gastelbondo-Pastrana BI, Fernandes FH, Salvadori DMF, Santos DCD. The comet assay in Ceraeochrysa claveri (Neuroptera: Chrysopidae): A suitable approach for detecting somatic and germ cell genotoxicity induced by agrochemicals. CHEMOSPHERE 2019; 235:70-75. [PMID: 31255767 DOI: 10.1016/j.chemosphere.2019.06.142] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 06/09/2023]
Abstract
Some agrochemicals are genotoxic to several organisms. Nevertheless, few protocols are currently available for measuring the toxicogenetic effects of these compounds in target and non-target field-collected species of insects important to agriculture. Herein, we used the species Ceraeochrysa claveri (Neuroptera: Chrysopidae), a non-target predator insect, to investigate the ability of an azadirachtin-based biopesticide (Azamax™) to induce DNA damage. The alkaline version of the comet assay was standardized to evaluate genetic instability caused by the toxicant in somatic (gut) and germ (nurse cells and oocytes) cells of C. claveri. For this, C. claveri larvae were distributed into three groups (10/each) and treated with Azamax™ at 0, 0.3% or 0.5% throughout the larval stage. DNA damage (tail intensity) was measured in adult insects, four days after emerged. The data showed that both doses of Azamax™ (0.3% and 0.5%) were able to significantly (p < 0.05) increase DNA damage in somatic and germ cells of C. claveri. In conclusion, C. claveri (intestinal and ovarian cells) was a sensitive bioindicator for identifying Azamax™ genotoxic potential, whereas the comet assay was a useful tool for detecting the genotoxic hazard of the pesticide in the field-collected insect species. Given that estimation of adverse effects of pollutants on ecosystems is an essential component of environmental risk assessment, the approach used can be recommended to estimate the ecotoxicity of agricultural chemicals.
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Affiliation(s)
- Bertha Irina Gastelbondo-Pastrana
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, Brazil.
| | - Fábio Henrique Fernandes
- Laboratory of Toxicogenomic and Nutrigenomic, Department of Pathology, Medical School, UNESP - São Paulo State University, Botucatu, SP, Brazil
| | - Daisy Maria Fávero Salvadori
- Laboratory of Toxicogenomic and Nutrigenomic, Department of Pathology, Medical School, UNESP - São Paulo State University, Botucatu, SP, Brazil
| | - Daniela Carvalho Dos Santos
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, Brazil; Electron Microscopy Center, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, Brazil
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Dey A, Manna S, Adhikary J, Chattopadhyay S, De S, Chattopadhyay D, Roy S. Biodistribution and toxickinetic variances of chemical and green Copper oxide nanoparticles in vitro and in vivo. J Trace Elem Med Biol 2019; 55:154-169. [PMID: 31345354 DOI: 10.1016/j.jtemb.2019.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 06/06/2019] [Accepted: 06/17/2019] [Indexed: 12/23/2022]
Abstract
In this study, chemical (S1) and green (S2) Copper Oxide nanoparticles (NPs) were synthesized to determine their biodistribution and toxicokinetic variances in vitro and in vivo. Both NPs significantly released Copper ions (Cu) in lymphocytes and were primarily deposited in the mononuclear phagocyte system (MPS) such as the liver and spleen in mice. In particular, S2NPs seemed to be prominently stored in the spleen, whereas the S1NPs were widely stored in more organs including the liver, heart, lungs, kidney and intestine. The circulation in the blood and fecal excretions both showed higher S2NPs contents respectively. Measurements of cell viability, Hemolysis assay, Reactive Oxygen Species (ROS) generation, biochemical estimation and apoptotic or necrotic study in lymphocytes after 24 h and measurements of body and organ weight, serum chemistry evaluation, cytokines level, protein expressions and histopathology of Balb/C mice after 15 days indicated significant toxicity difference between the S1NPs and S2NPs. Our observations proved that the NPs physiochemical properties influence toxicity and Biodistribution profiles in vitro and in vivo.
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Affiliation(s)
- Aditi Dey
- Immunology and Microbiology Laboratory, Department of Human Physiology with Community health, Vidyasagar University, Midnapore, 721102, West Bengal, India
| | - Subhankar Manna
- Immunology and Microbiology Laboratory, Department of Human Physiology with Community health, Vidyasagar University, Midnapore, 721102, West Bengal, India
| | - Jaydeep Adhikary
- Department of Chemical Sciences, Ariel University, Ariel, 40700, Israel
| | - Sourav Chattopadhyay
- Molecular Genetics and Therapeutics Lab, Indian Institute of Technology, Kanpur, India
| | - Sriparna De
- Department of Polymer Science and Technology, USCTA, University of Calcutta, 92 A.P.C road, Kolkata, 700009, West Bengal, India
| | - Dipankar Chattopadhyay
- Department of Polymer Science and Technology, USCTA, University of Calcutta, 92 A.P.C road, Kolkata, 700009, West Bengal, India.
| | - Somenath Roy
- Immunology and Microbiology Laboratory, Department of Human Physiology with Community health, Vidyasagar University, Midnapore, 721102, West Bengal, India.
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Identification of key enzymes responsible for protolimonoid biosynthesis in plants: Opening the door to azadirachtin production. Proc Natl Acad Sci U S A 2019; 116:17096-17104. [PMID: 31371503 PMCID: PMC6708365 DOI: 10.1073/pnas.1906083116] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Limonoids are natural products made by members of the Meliaceae and Rutaceae families. Some limonoids (e.g., azadirachtin) are toxic to insects yet harmless to mammals. The use of limonoids in crop protection and other applications currently depends on extraction from limonoid-producing plants. Metabolic engineering offers opportunities to generate crop plants with enhanced insect resistance and also to produce high-value limonoids (e.g., for pharmaceutical use) by expression in heterologous hosts. However, to achieve this the enzymes responsible for limonoid biosynthesis must first be characterized. Here we identify 3 conserved enzymes responsible for the biosynthesis of the protolimonoid melianol, a precursor to limonoids, from Melia azedarach and Citrus sinensis, so paving the way for limonoid metabolic engineering and diversification. Limonoids are natural products made by plants belonging to the Meliaceae (Mahogany) and Rutaceae (Citrus) families. They are well known for their insecticidal activity, contribution to bitterness in citrus fruits, and potential pharmaceutical properties. The best known limonoid insecticide is azadirachtin, produced by the neem tree (Azadirachta indica). Despite intensive investigation of limonoids over the last half century, the route of limonoid biosynthesis remains unknown. Limonoids are classified as tetranortriterpenes because the prototypical 26-carbon limonoid scaffold is postulated to be formed from a 30-carbon triterpene scaffold by loss of 4 carbons with associated furan ring formation, by an as yet unknown mechanism. Here we have mined genome and transcriptome sequence resources for 3 diverse limonoid-producing species (A. indica, Melia azedarach, and Citrus sinensis) to elucidate the early steps in limonoid biosynthesis. We identify an oxidosqualene cyclase able to produce the potential 30-carbon triterpene scaffold precursor tirucalla-7,24-dien-3β-ol from each of the 3 species. We further identify coexpressed cytochrome P450 enzymes from M. azedarach (MaCYP71CD2 and MaCYP71BQ5) and C. sinensis (CsCYP71CD1 and CsCYP71BQ4) that are capable of 3 oxidations of tirucalla-7,24-dien-3β-ol, resulting in spontaneous hemiacetal ring formation and the production of the protolimonoid melianol. Our work reports the characterization of protolimonoid biosynthetic enzymes from different plant species and supports the notion of pathway conservation between both plant families. It further paves the way for engineering crop plants with enhanced insect resistance and producing high-value limonoids for pharmaceutical and other applications by expression in heterologous hosts.
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Nile AS, Kwon YD, Nile SH. Horticultural oils: possible alternatives to chemical pesticides and insecticides. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:21127-21139. [PMID: 31144182 DOI: 10.1007/s11356-019-05509-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/16/2019] [Indexed: 06/09/2023]
Abstract
The farmers and agrochemical industries lack science-based knowledge about sustainable utilization of pesticides and insecticides. The investigation on rising use of chemical pesticides and insecticides has remarkable issue related to environment pollution, soil fertility, and human health; as such, nowadays, many people prefer natural alternatives over synthetic chemicals. Natural products, like horticultural oils, play a significant role for sustainable and safe integrated pest management, providing natural alternatives to chemical pesticides and insecticides. For several decades, both plant- and petroleum-based spray oils have been always used to control various pests, mites, and insects. Currently, these horticultural oils are used as a part of the integrated pest management, which utilizes secure and non-chemical pesticides rather than conventional pesticides. Horticultural oil refers to a complex mixture of hydro-carbons with traces of sulfur- and nitrogen-based compounds, extracted from plants. The key components of horticultural oils include paraffin and olefin. The horticultural oils are considered suitable since they are non-toxic to both plants and animals, are applied easily, have low risk properties, cost-effective, and play significant role in pest control, but show little effects on the beneficial insects. As a result, these attributes make horticultural oils to be considered as secure and effective alternative for chemical insecticides and pesticides for both commercial and domestic agriculture.
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Affiliation(s)
- Arti Shivraj Nile
- Department of Bioresources and Food Science, Sanghuh College of Life Sciences, Konkuk University, Seoul, 05029, Republic of Korea
| | - Young Deuk Kwon
- Department of Bioresources and Food Science, Sanghuh College of Life Sciences, Konkuk University, Seoul, 05029, Republic of Korea
| | - Shivraj Hariram Nile
- Department of Bioresources and Food Science, Sanghuh College of Life Sciences, Konkuk University, Seoul, 05029, Republic of Korea.
- Laboratory of Medicinal Plant Biotechnology, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, People's Republic of China.
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47
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Garcia ASG, Scudeler EL, Pinheiro PFF, Dos Santos DC. Can exposure to neem oil affect the spermatogenesis of predator Ceraeochrysa claveri? PROTOPLASMA 2019; 256:693-701. [PMID: 30460415 DOI: 10.1007/s00709-018-1329-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Novel biological control methods and integrated pest management strategies are basic requirements for the development of sustainable agriculture. As a result, there is a growing demand for research on the use of plant extracts and natural enemies such as the green lacewing, Ceraeochrysa claveri, as natural pest control methods. Studies have shown that although natural compounds such as neem oil (Azadirachta indica) are effective as pest control strategies, they also cause sublethal effects on nontarget insects, such as C. claveri. The aim of this study was to examine the effects of neem oil on C. claveri testes. C. claveri larvae were fed Diatraea saccharalis eggs, which were pretreated with 0.5%, 1%, and 2% neem oil. Testes were collected from larvae, pupae, and adults and analyzed using light and electron (transmission and scanning) microscopy. Changes in cellular stress and possible cell death were also determined by TUNEL assay and the marker HSP-70. The results showed that neem oil affects the organization and distribution of cysts in the testes and the normal sequence of cyst development, causing a delay in spermatogenesis in the testes of treated insects. Tests for cellular stress and DNA fragmentation indicated there was no cellular alteration in the treated groups. Although neem oil does not induce cell death or changes in HSP-70 expression, this biopesticide negatively impacts the process of spermatogenesis and could decrease the perpetuation of this species in the agroecosystem, indicating that the use of neem oil in association with green lacewings as a biological control should be carefully evaluated.
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Affiliation(s)
- Ana Silvia Gimenes Garcia
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, 18618-689, Brazil
| | - Elton Luiz Scudeler
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, 18618-689, Brazil
| | | | - Daniela Carvalho Dos Santos
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, 18618-689, Brazil.
- Electron Microscopy Center, Institute of Biosciences of Botucatu, UNESP - São Paulo State University, Botucatu, SP, Brazil.
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Scudeler EL, Garcia ASG, Padovani CR, Dos Santos DC. Pest and natural enemy: how the fat bodies of both the southern armyworm Spodoptera eridania and the predator Ceraeochrysa claveri react to azadirachtin exposure. PROTOPLASMA 2019; 256:839-856. [PMID: 30643985 DOI: 10.1007/s00709-019-01347-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/04/2019] [Indexed: 06/09/2023]
Abstract
The effects of biopesticides on insects can be demonstrated by morphological and ultrastructural tools in ecotoxicological analysis. Azadirachtin-based products are widely used as biopesticides, affecting numerous insect populations. Through morphological biomarkers, this study aimed to characterize the fat bodies of both the southern armyworm Spodoptera eridania and the predator Ceraeochrysa claveri after chronic exposure to azadirachtin. Larvae of S. eridania and C. claveri were fed with fresh purple lettuce leaves (Lactuca sativa) and egg clusters of Diatraea saccharalis treated with azadirachtin solution of 6 mg active ingredient (a.i.)/L and 18 mg a.i./L for 7 days, respectively. The biological data showed a significant reduction in survival and body mass in S. eridania and cytotoxic effects in the parietal and perivisceral fat bodies in both species. Ultrastructural cell damage was observed in the trophocytes of both species such as dilated cisternae of the rough endoplasmic reticulum and swollen mitochondria. Trophocytes of S. eridania and C. claveri of the parietal and perivisceral layers responded to those injuries by different cytoprotective and detoxification means such as an increase in the amount of cytoplasmic granules containing calcium, expression of heat shock protein (HSP)70/HSP90, and development of the smooth endoplasmic reticulum. Despite all the different means of cytoprotection and detoxification, they were not sufficient to recover from all the cellular damages. Azadirachtin exhibited an excellent performance for the control of S. eridania and a moderate selectivity for the predator C. claveri, which presents better biological and cytoprotective responses to chronic exposure to azadirachtin.
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Affiliation(s)
- Elton Luiz Scudeler
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Ana Silvia Gimenes Garcia
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Carlos Roberto Padovani
- Department of Biostatistics, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Daniela Carvalho Dos Santos
- Laboratory of Insects, Department of Morphology, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
- Electron Microscopy Center, Institute of Biosciences of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
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Mao G, Tian Y, Sun Z, Ou J, Xu H. Bruceine D Isolated from Brucea Javanica (L.) Merr. as a Systemic Feeding Deterrent for Three Major Lepidopteran Pests. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4232-4239. [PMID: 30901209 DOI: 10.1021/acs.jafc.8b06511] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Systemicity is a desirable property for insecticides. Many phytochemicals show good systemic properties and thus are natural sources of novel systemic insecticidal ingredients. Bruceine D, a quassinoid, was identified in Brucea javanica (L.) Merr. and displayed outstanding systemic properties and excellent antifeedant activity against the diamondback moth (DBM, Plutella xylostella L.), beet armyworm ( Spodoptera exigua Hübner), and cotton leafworm ( Spodoptera litura Fabricius). Its antifeedant effect on third instar larvae of DBM was approximately 6.2-fold stronger than that of azadirachtin. When bruceine D was applied to roots at a concentration of 100 μg/mL for 24 and 48 h, its concentration in flowering Chinese cabbage ( Brassica campestris L. ssp. chinensis var. utiliz Tsen et Lee) leaves was 38.69 μg/g (fresh weight, FW) and 108.45 μg/g (FW), respectively. These concentrations could achieve 93.80% and 96.83% antifeedant effects, which were significantly greater than those of azadirachtin. Similar to azadirachtin, bruceine D also posed a potent growth inhibition effect on insect larvae. After feeding with 20 μg/g bruceine D, no pupae were observed. The results demonstrated that bruceine D is an effective botanical insect antifeedant with outstanding systemic properties, causing potent pest growth inhibitory activity.
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50
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Azadirachtin inhibits amyloid formation, disaggregates pre-formed fibrils and protects pancreatic β-cells from human islet amyloid polypeptide/amylin-induced cytotoxicity. Biochem J 2019; 476:889-907. [DOI: 10.1042/bcj20180820] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/18/2019] [Accepted: 02/27/2019] [Indexed: 12/16/2022]
Abstract
Abstract
The human islet amyloid polypeptide (hIAPP) or amylin is the major constituent of amyloidogenic aggregates found in pancreatic islets of type 2 diabetic patients that have been associated with β-cell dysfunction and/or death associated with type 2 diabetes mellitus (T2DM). Therefore, developing and/or identifying inhibitors of hIAPP aggregation pathway and/or compound that can mediate disaggregation of preformed aggregates holds promise as a medical intervention for T2DM management. In the current study, the anti-amyloidogenic potential of Azadirachtin (AZD)—a secondary metabolite isolated from traditional medicinal plant Neem (Azadirachta indica)—was investigated by using a combination of biophysical and cellular assays. Our results indicate that AZD supplementation not only inhibits hIAPP aggregation but also disaggregates pre-existing hIAPP fibrils by forming amorphous aggregates that are non-toxic to pancreatic β-cells. Furthermore, AZD supplementation in pancreatic β-cells (INS-1E) resulted in inhibition of oxidative stress; along with restoration of the DNA damage, lipid peroxidation and the associated membrane damage, endoplasmic reticulum stress and mitochondrial membrane potential. AZD treatment also restored glucose-stimulated insulin secretion from pancreatic islets exposed to hIAPP. All-atom molecular dynamics simulation studies on full-length hIAPP pentamer with AZD suggested that AZD interacted with four possible binding sites in the amyloidogenic region of hIAPP. In summary, our results suggest AZD to be a promising candidate for combating T2DM and related amyloidogenic disorders.
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