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Farina P, Pisuttu C, Tani C, Bedini S, Nali C, Landi M, Lauria G, Conti B, Pellegrini E. Leaf and Flower Extracts from the Dwarf Elder ( Sambucus ebulus): Toxicity and Repellence against Cosmopolitan Mosquito-Borne Diseases Vectors. INSECTS 2024; 15:482. [PMID: 39057215 PMCID: PMC11276704 DOI: 10.3390/insects15070482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/28/2024]
Abstract
As there has been no scientific evidence of the bioactivity of Sambucus ebulus (Adoxaceae) extracts against insects, we chemically characterized S. ebulus leaves and flowers extracted in methanol and water. The crude extracts, phenolic compounds, and amino acids isolated were tested as larvicides against the fourth-instar larvae of Aedes albopictus and Culex pipiens (Diptera: Culicidae). To understand their mode of action, we evaluated the in vitro acetylcholinesterase (AChE) inhibitor effect of the crude extracts on the two mosquito larvae through a colorimetric method. Furthermore, the deterrent effect of the crude extracts against ovipositing Ae. albopictus females was assessed in the open field. Twelve phenylpropanoids and fourteen amino acids were detected in the extracts, with a prevalence of hydroxycinnamic acids and nonaromatic amino acids. The most toxic compound to Ae. albopictus larvae after 24 h was gallic acid, followed by the crude S. ebulus leaf extract; on Cx. pipiens, it was the crude flower extract. The AChE test showed higher inhibition on both mosquito species exerted by the leaf extract if compared to the flower extract, and it also deterred oviposition by Ae. albopictus females starting from the third day. The results indicated that vegetal extracts could effectively help in the integrated vector management of mosquitoes.
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Affiliation(s)
- Priscilla Farina
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
| | - Claudia Pisuttu
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
| | - Camilla Tani
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
| | - Stefano Bedini
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
| | - Cristina Nali
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
- Nutrafood, Research Center Nutraceuticals and Food for Health-Nutrafood, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Cirsec, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
- Nutrafood, Research Center Nutraceuticals and Food for Health-Nutrafood, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Cirsec, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Giulia Lauria
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
| | - Barbara Conti
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
- Nutrafood, Research Center Nutraceuticals and Food for Health-Nutrafood, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Cirsec, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Elisa Pellegrini
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (P.F.); (C.P.); (C.T.); (S.B.); (C.N.); (M.L.); (G.L.); (E.P.)
- Nutrafood, Research Center Nutraceuticals and Food for Health-Nutrafood, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
- Cirsec, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
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Donadu MG, Ferrari M, Behzadi P, Trong Le N, Usai D, Fiamma M, Battah B, Barac A, Bellardi MG, Hoai TN, Mazzarello V, Rubino S, Cappuccinelli P, Zanetti S. Multifactorial action of lavender and lavandin oils against filamentous fungi. Nat Prod Res 2024:1-9. [PMID: 38293715 DOI: 10.1080/14786419.2024.2301741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/30/2023] [Indexed: 02/01/2024]
Abstract
AIMS In this study, five essential oils (EOs) from different species of Lavandula hybrida abrialis, for Lavandula hybrida R.C., Lavandula hybrida 'super A', Lavandula hybrida 'super Z' and Lavandula vera and its hybrids Lavender were evaluated against 26 dust-isolated fungal strains from North Africa. METHODS AND RESULTS The composition of the different EOs was determined from volume to dry weight. The photochemical analyses were performed via gas chromatography (GC). The cytotoxic effect of five lavender EOs on human epithelial colorectal adenocarcinoma cells (Caco-2) cell line was done. A total of 26 strains of filamentous fungi including Aspergillus spp., Botrytis cinerea, Ceriporia spp., Fusarium spp. and Penicillium glabrum were isolated from sand dust samples via molecular diagnostic tool of PCR. Fungal strains with the lowest minimal lethal concentration (MLC) were Penicillium glabrum, Ceriporia spp. and a strain of Aspergillus spp. CONCLUSIONS More studies are needed to verify the activity of this EO against more different fungal species, and determine the active ingredients.Significance and impact of study: MIC of the antifungal efficacy relating to EOs was evaluated. The EOs tests showed no cytotoxic effect at very low concentrations, ranging from 0.03% (IC50 0.9132 mg/mL) (L. hybrid Abrialis) to 0.001% (IC50 1.631 mg/mL) (L. hybrid R.C.).
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Affiliation(s)
- Matthew Gavino Donadu
- Department of Biomedical Science, University of Sassari, Sassari, Italy
- Hospital Pharmacy, Giovanni Paolo II Hospital, ASL Gallura, Olbia, Italy
| | - Marco Ferrari
- Department of Biomedical Science, University of Sassari, Sassari, Italy
| | - Payam Behzadi
- Department of Microbiology, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Nhan Trong Le
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | - Donatella Usai
- Department of Biomedical Science, University of Sassari, Sassari, Italy
| | - Maura Fiamma
- Analysis Laboratory, Hospital 'San Francesco', Nuoro, Italy
| | - Basem Battah
- Department of Biochemistry and Microbiology, Faculty of Pharmacy, Syrian Private University (SPU), Daraa International Highway, Damascus, Syria
| | - Aleksandra Barac
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Hospital for Infectious and Tropical Diseases, Clinical Center of Serbia, Belgrade, Serbia
| | | | - Thi Nguyen Hoai
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam
| | | | - Salvatore Rubino
- Department of Biomedical Science, University of Sassari, Sassari, Italy
| | | | - Stefania Zanetti
- Department of Biomedical Science, University of Sassari, Sassari, Italy
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Abenaim L, Conti B. Chitosan as a Control Tool for Insect Pest Management: A Review. INSECTS 2023; 14:949. [PMID: 38132623 PMCID: PMC10744275 DOI: 10.3390/insects14120949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Chitosan, a polysaccharide derived from the deacetylation of chitin, is a versatile and eco-friendly biopolymer with several applications. Chitosan is recognized for its biodegradability, biocompatibility, and non-toxicity, beyond its antimicrobial, antioxidant, and antitumoral activities. Thanks to its properties, chitosan is used in many fields including medicine, pharmacy, cosmetics, textile, nutrition, and agriculture. This review focuses on chitosan's role as a tool in insect pest control, particularly for agriculture, foodstuff, and public health pests. Different formulations, including plain chitosan, chitosan coating, chitosan with nematodes, chitosan's modifications, and chitosan nanoparticles, are explored. Biological assays using these formulations highlighted the use of chitosan-essential oil nanoparticles as an effective tool for pest control, due to their enhanced mobility and essential oils' prolonged release over time. Chitosan's derivatives with alkyl, benzyl, and acyl groups showed good activity against insect pests due to improved solubility and enhanced activity compared to plain chitosan. Thus, the purpose of this review is to provide the reader with updated information concerning the use and potential applications of chitosan formulations as pest control tools.
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Affiliation(s)
- Linda Abenaim
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy;
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Preußer D, Fischer T, Juretzek T. Effects of antibiotics ceftriaxone and levofloxacin on the growth of Lucilia sericata (Diptera: Calliphoridae). MEDICAL AND VETERINARY ENTOMOLOGY 2023; 37:805-815. [PMID: 37606156 DOI: 10.1111/mve.12685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/26/2023] [Indexed: 08/23/2023]
Abstract
Lucilia sericata is one of the most studied species in forensic entomology due to its widespread distribution, forensic importance as well as medical use. The growth and development stage of maggots is often used to determine the post-mortem interval in forensic cases. L. sericata can cause myiasis in humans who are not able to maintain personal hygiene due to age or medical condition and can therefore be used to determine the time period of neglect. The influence of the temperature on the maggot development has been examined in various studies. Different examinations on the effects of toxic substances on the maggot development and survival have been conducted in order to test the influence and resulting deviations. In this study, the effects of different therapeutical doses of the antibiotics ceftriaxone and levofloxacin were examined on L. sericata in order to determine and compare deviations in maggot development and survival. The used antibiotics did not significantly influence the maggot weight and length. A significant delay in the time of pupation has been determined in the treatments with high concentrations of levofloxacin. The mortality was significantly increased in all treatments with antibiotics compared to the control, whereby the survivability of all treatments remained over 80%. Because of the high doses needed to produce an effect, we concluded that an overestimation of the post-mortem interval is unlikely but higher antibiotic concentrations or possible interactions with other medications could increase the maggot development time.
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Affiliation(s)
- Daniel Preußer
- Chair of Ecology, Brandenburg University of Technology Cottbus-Senftenberg, Cottbus, Germany
| | - Thomas Fischer
- Central Analytical Laboratory, Brandenburg University of Technology Cottbus-Senftenberg, Cottbus, Germany
- Study Program Forensic Sciences and Engineering, Cottbus, Germany
| | - Thomas Juretzek
- Study Program Forensic Sciences and Engineering, Cottbus, Germany
- Carl-Thiem-Klinikum Cottbus, Cottbus, Germany
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Kamaraj C, Satish Kumar RC, Al-Ghanim KA, Nicoletti M, Sathiyamoorthy V, Sarvesh S, Ragavendran C, Govindarajan M. Novel Essential Oils Blend as a Repellent and Toxic Agent against Disease-Transmitting Mosquitoes. TOXICS 2023; 11:517. [PMID: 37368617 DOI: 10.3390/toxics11060517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/22/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023]
Abstract
Bio-insecticidal research has focused on long-term vector control using essential oils (EOs). This study examined the larvicidal, oviposition-deterrent, and repellent properties of five medicinal herb-based EO formulations (EOFs) on mosquitoes that are vectors of dengue, filariasis, and malaria. EOFs were significantly more toxic to the larvae and pupae of Culex quinquefasciatus, Anopheles stephensi, and Aedes aegypti with LC50 = 9.23, 12.85, and 14.46 ppm, as well with 10.22, 11.39, and 12.81 ppm, with oviposition active indexes of -0.84, -0.95, and -0.92, respectively. Oviposition-deterrent repellence was found in 91.39%, 94.83%, and 96.09%. EOs and N, N-Diethyl-3-methylbenzamide (DEET) were prepared at various concentrations for time duration repellent bioassays (6.25-100 ppm). Ae. aegypti, An. stephensi, and Cx. quinquefasciatus were monitored for 300, 270, and 180 min, respectively. At 100 ppm, EOs and DEET had comparable repellence in terms of test durations. EOF's primary components d-limonene (12.9%), 2,6-octadienal, 3,7-dimethyl, (Z) (12.2%), acetic acid, phenylmethyl ester (19.6%), verbenol (7.6%), and benzyl benzoate (17.4%) may be combined to make a mosquito larvicidal and repellant equivalent to synthetic repellent lotions. In the molecular dynamics simulations, limonene (-6.1 kcal/mol) and benzyl benzoate (-7.5 kcal/mol) had a positive chemical association with DEET (-6.3 kcal/mol) and interacted with the OBP binding pocket with high affinity and stability. This research will help local herbal product manufacturers and the cosmetics industry in developing 100% herbal insect repellent products to combat mosquito-borne diseases, including dengue, malaria, and filariasis.
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Affiliation(s)
- Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research, SRM Institute Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Rajappan Chandra Satish Kumar
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research, SRM Institute Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Khalid A Al-Ghanim
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Marcello Nicoletti
- Department of Environmental Biology, Foundation in Unam Sapientiam, Sapienza University of Rome, 00185 Rome, Italy
| | - V Sathiyamoorthy
- Ayurvedic Manufacturing, Kancheepuram 631 501, Tamil Nadu, India
| | - Sabarathinam Sarvesh
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research, SRM Institute Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - Chinnasamy Ragavendran
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600 077, Tamil Nadu, India
| | - Marimuthu Govindarajan
- Unit of Vector Control, Phytochemistry and Nanotechnology, Department of Zoology, Annamalai University, Annamalainagar 608 002, Tamil Nadu, India
- Unit of Natural Products and Nanotechnology, Department of Zoology, Government College for Women (Autonomous), Kumbakonam 612 001, Tamil Nadu, India
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Bambaradeniya YTB, Magni PA, Dadour IR. Traumatic sheep myiasis: A review of the current understanding. Vet Parasitol 2023; 314:109853. [PMID: 36577285 DOI: 10.1016/j.vetpar.2022.109853] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
Myiasis, or the infestation of live humans and vertebrate animals by dipterous larvae, is a health issue worldwide. The economic impact and potential threat to animal health and wellbeing of this disease under the animal husbandry sector is considerable. Sheep are a highly vulnerable livestock category exposed to myiasis (sheep strike), due to several unique predisposing factors that attract flies. The successful mitigation of this disease relies on a thorough understanding of fly population dynamics associated with the change in weather patterns and the evaluation of this disease through different branches of science such as chemistry, molecular biology, and microbiology. The present review provides a summary of the existing knowledge of strike in sheep, discussed in relation to the application of volatile organic compounds, metagenomics, and molecular biology, and their use regarding implementing fly control strategies such as traps, and to increase the resilience of sheep to this disease through improving their health and wellbeing.
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Affiliation(s)
- Y T B Bambaradeniya
- Discipline of Medical, Molecular & Forensic Sciences, Murdoch University, Murdoch, Western Australia, Australia.
| | - P A Magni
- Discipline of Medical, Molecular & Forensic Sciences, Murdoch University, Murdoch, Western Australia, Australia; Murdoch University Singapore, King's Centre, Singapore.
| | - I R Dadour
- Discipline of Medical, Molecular & Forensic Sciences, Murdoch University, Murdoch, Western Australia, Australia; Source Certain, PO Box 1570, Wangara DC, Western Australia 6947, Australia.
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Farina P, Ascrizzi R, Bedini S, Castagna A, Flamini G, Macaluso M, Mannucci A, Pieracci Y, Ranieri A, Sciampagna MC, Venturi F, Conti B. Chitosan and Essential Oils Combined for Beef Meat Protection against the Oviposition of Calliphora vomitoria, Water Loss, Lipid Peroxidation, and Colour Changes. Foods 2022; 11:foods11243994. [PMID: 36553736 PMCID: PMC9778219 DOI: 10.3390/foods11243994] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Meat production has a higher economic and ecological impact than other commodities. The reduction in meat loss and waste throughout the whole supply chain is a demanding challenge. In recent years, the interest in the food-grade polysaccharide chitosan (CH) and essential oils (EOs) employed as allies in meat protection has increased. In this work, we selected five EOs obtained from plants traditionally used as spices, and after their chemical characterisation, a trained panel of expert sensorial analysts determined that, among them, Laurus nobilis (Lauraceae) and Piper nigrum (Piperaceae) EOs were the most suitable to season meat. Therefore, the effect of CH, the L. nobilis and P. nigrum EOs, and EOs-enriched CH solutions on meat was tested to assess how they deter the oviposition behaviour of the blowfly Calliphora vomitoria (Diptera: Calliphoridae) and against water loss, lipid peroxidation, and colour changes. All the applied treatments, compared to the control, did not accelerate meat dehydration but increased colour lightness, an attractive feature for consumers, and discouraged the blowfly's oviposition. In particular, the P. nigrum EO-enriched CH was the most active in repelling C. vomitoria without negatively affecting the organoleptic qualities and shelf-life of meat.
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Affiliation(s)
- Priscilla Farina
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Roberta Ascrizzi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Stefano Bedini
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Antonella Castagna
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Guido Flamini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Monica Macaluso
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Alessia Mannucci
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Ylenia Pieracci
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Annamaria Ranieri
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Maria Calogera Sciampagna
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
| | - Francesca Venturi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
- Correspondence:
| | - Barbara Conti
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy
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Khater HF, Hocine Z, Baz MM, Selim A, Ahemed N, Kandeel SA, Debboun M. Ovicidal Aroma Shields for Prevention of Blow Fly Strikes Caused by Lucilia sericata (Meigen), Diptera: Calliphoridae. Vector Borne Zoonotic Dis 2022; 22:459-464. [PMID: 36044016 DOI: 10.1089/vbz.2021.0107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The blow fly, Lucilia sericata (Meigen) (Diptera: Culicidae) is a primary facultative ectoparasite controlled by insecticides that have environmental and safety concerns; therefore, its natural and safe control is crucial. L. sericata eggs were subjected to 400 μL of 5% of 24 materials of plant-borne origin. The number of hatched and unhatched eggs were counted 24 h postexposure. Stopmyasis® expressed the highest ovicidal effect, followed by cedarwood, orange, and tea tree oils. The mean ovicidal results were 46.09-95.24% grouped as Class A, which provided the lowest hatchability rates. Even though benzoin, vanillin, citronella, and camphor oils grouped as Class B provided moderate ovicidal effects (33.69-43.92%), their efficacy differed significantly from those of the treatments in Classes A and C containing the control group and vetiver, eucalyptus, Olbas®, neem, sunflower, oil blends, patchouli, frankincense, p-menthane-3,8 diol (PMD), lavender, peppermint, cinnamon, calry sag, myrtle, and silicone oil. According to our knowledge, most (19 out of 24) applied materials were used as ovicides against L. serricata for the first time, except orange, eucalyptus, patchouli, cinnamon oils, and six of them were applied as ovicides against pests for the first time. Stopmyasis containing Géraniol and PMD is the drug of choice as an ecofriendly product to prevent blow fly strikes through correct diagnosis and prompt treatment preventing a disastrous and destructive course of the disease and improving quality of life.
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Affiliation(s)
- Hanem F Khater
- Department of Parasitology, Faculty of Veterinary Medicine, Benha University, Moshtohor, Toukh, Egypt
| | - Ziam Hocine
- Preclinical Department, Institute of Veterinary Science, University Blida 1, Algeria
| | - Mohamed M Baz
- Department of Entomology, Faculty of Science, Benha University, Qalyubiya, Egypt
| | - Abdelfattah Selim
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Nazeer Ahemed
- Department of Agriculture, University of Swabi, Anbar, Khyber Pakhtunkhwa, Pakistan
| | - Sahar A Kandeel
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Mustapha Debboun
- Delta Mosquito and Vector Control District, Visalia, California, USA
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Trombin de Souza M, Trombin de Souza M, Bernardi D, Oliveira DDC, Morais MC, de Melo DJ, Richardi VS, Zarbin PHG, Zawadneak MAC. Essential Oil of Rosmarinus officinalis Ecotypes and Their Major Compounds: Insecticidal and Histological Assessment Against Drosophila suzukii and Their Impact on a Nontarget Parasitoid. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:955-966. [PMID: 34865075 DOI: 10.1093/jee/toab230] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Essential oils (EOs) produced by plants in the Lamiaceae family may provide new insecticidal molecules. Novel control compounds are needed to control Drosophila suzukii (Matsumura), a severe economic invasive pest of thin-skinned fruit crops. Thus, we characterized the main compounds of EOs from three rosemary Rosmarinus officinalis ecotypes (ECOs) and evaluated their toxicity to D. suzukii adults, deterrence of oviposition behavior, and histological alterations in larvae. Additionally, we analyzed the lethal and sublethal effect on the pupal parasitoid Trichopria anastrephae. The main compounds identified in the R. officinalis ECOs were α-pinene, camphor and 1,8-cineole. In bioassays via topical application or ingestion, ECOs and their major compounds showed high toxicity on D. suzukii adults and a lower concentration could kill 50% and 90% of flies compared to spinetoram. The dry residues of a-pinene, 1,8-cineole, and camphor provided a repellent effect by reducing D. suzukii oviposition by ~47% compared to untreated fruit. Histological sections of 3rd instar larval D. suzukii posttreatment revealed damage to the fat body, Malpighian tubules, brain, salivary gland, and midgut, which contributed to high larval and pupal mortality. Survival and parasitism by adult T. anastrephae were not affected. Thus, R. officinalis EO and their compounds have potential for developing novel insecticides to manage D. suzukii.
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Affiliation(s)
| | | | - Daniel Bernardi
- Department of Plant Protection, Federal University of Pelotas, Faculty of Agronomy, Pelotas, Rio Grande do Sul, Brazil
| | - Daiana da Costa Oliveira
- Department of Plant Protection, Federal University of Pelotas, Faculty of Agronomy, Pelotas, Rio Grande do Sul, Brazil
| | - Maíra Chagas Morais
- Department of Plant Protection, Federal University of Pelotas, Faculty of Agronomy, Pelotas, Rio Grande do Sul, Brazil
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Farina P, Venturi F, Ascrizzi R, Flamini G, Chiriboga Ortega RD, Echeverría MC, Ortega S, Zinnai A, Bedini S, Conti B. Andean Plants Essential Oils: A Scented Alternative to Synthetic Insecticides for the Control of Blowflies. INSECTS 2021; 12:insects12100894. [PMID: 34680663 PMCID: PMC8540604 DOI: 10.3390/insects12100894] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 01/10/2023]
Abstract
Blowflies are vectors of microorganisms and human pathogens, and their maggots cause myiasis in vertebrates and infest and spoil meat and fish products. Essential oils (EOs) from spices were proven to be a safer and more sustainable alternative to synthetic insecticides for the control of blowflies and are suitable for protecting food from such pests. However, some EOs are not acceptable for environmental or topical applications due to their strong, unpleasant odour. In this study, we measured the acute toxicity and the repellence of two EOs extracted from the Andean plants Aloysia citrodora Palau and Bursera graveolens (Kunth) Triana and Planch., both known for their pleasant odour, against the blue blowfly Calliphora vomitoria (L.) (Diptera: Calliphoridae). We also compared their bioactivity with that of the Allium sativum L. EO, which is very effective but bad-smelling. The A. citrodora EO was mainly rich in oxygenated monoterpenes, the most abundant of which were geranial (26.8%) and neral (21.0%). The B. graveolens EO was chiefly composed of monoterpene hydrocarbons, mostly represented by limonene (46.2%). According to the sensory description, the best odour profile was associated with the A. citrodora EO, while the olfactory expression of the EO from B. graveolens was negatively affected by a strong odour of "mouldy lemon". The behavioural test showed that the A. citrodora EO was more repellent than that of A. sativum and, on the contrary, that the B. graveolens EO was attractive. The toxicity tests showed that the EOs of both Andean plants have a clear toxic effect on the C. vomitoria eggs and adults. In terms of ovicidal activity, there were no significant differences among the effects of the three tested EOs. On the adult flies, the toxicity of the two EOs of the Andean plants was much lower than that of A. sativum (LC50 fumigation = 1.86 μL EO L-1 air; LC50 ingestion = 8.10 μL EO mL-1 gel) both by fumigation (LC50 = 23.66 and 25.30 μL EO L-1 air for A. citrodora and B. graveolens, respectively) and ingestion (LC50 = 36.65 and 44.97 μL EO mL-1 gel for A. citrodora and B. graveolens, respectively), while, by contact, the A. citrodora EO (LD50 = 0.27 μL EO insect-1) was more toxic than the A. sativum EO (LD50 = 0.46 μL EO insect-1).
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Affiliation(s)
- Priscilla Farina
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy; (P.F.); (F.V.); (A.Z.); (B.C.)
| | - Francesca Venturi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy; (P.F.); (F.V.); (A.Z.); (B.C.)
| | - Roberta Ascrizzi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (R.A.); (G.F.)
| | - Guido Flamini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (R.A.); (G.F.)
| | - Rodrigo Daniel Chiriboga Ortega
- Department of Biotechnology, Universidad Técnica del Norte, Av. 17 de Julio, 5-21 y Gral, José María Cordova, Ibarra 100105, Ecuador; (R.D.C.O.); (M.C.E.); (S.O.)
| | - Maria Cristina Echeverría
- Department of Biotechnology, Universidad Técnica del Norte, Av. 17 de Julio, 5-21 y Gral, José María Cordova, Ibarra 100105, Ecuador; (R.D.C.O.); (M.C.E.); (S.O.)
| | - Sania Ortega
- Department of Biotechnology, Universidad Técnica del Norte, Av. 17 de Julio, 5-21 y Gral, José María Cordova, Ibarra 100105, Ecuador; (R.D.C.O.); (M.C.E.); (S.O.)
| | - Angela Zinnai
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy; (P.F.); (F.V.); (A.Z.); (B.C.)
| | - Stefano Bedini
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy; (P.F.); (F.V.); (A.Z.); (B.C.)
- Correspondence:
| | - Barbara Conti
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56126 Pisa, Italy; (P.F.); (F.V.); (A.Z.); (B.C.)
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Preußer D, Bröring U, Fischer T, Juretzek T. Effects of antibiotics ceftriaxone and levofloxacin on the growth of Calliphora vomitoria L. (Diptera: Calliphoridae) and effects on the determination of the post-mortem interval. J Forensic Leg Med 2021; 81:102207. [PMID: 34214895 DOI: 10.1016/j.jflm.2021.102207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 10/21/2022]
Abstract
The determination of the post-mortem interval (PMI) is one of the main tasks of forensic entomology, where growth and stages of development of arthropods are used for PMI determination. It is well acknowledged that maggot development is significantly influenced by temperature. Attention has also been paid to the microbial populations of the cadaver, because toxic substances contained in the substrate can influence the microorganisms and affect arthropods growth and development. However, little is known about the influence of antibiotics taken during lifetime of a person on insect development after that persons death. The aim of this study was to test the hypothesis that the antibiotics ceftriaxone and levofloxacin cause inhibition of growth and delay of pupation of the blow fly Calliphora vomitoria, which would then lead to an incorrect determination of the post-mortem interval in forensic cases. It was found that maggot development was delayed by levofloxacin mixed in minced pork, where a mixture of both antibiotics increased this effect. The maggot growth in the samples with ceftriaxone was not delayed. Pupation was delayed in treatments with a mixture of both antibiotics. The mortality was reduced by separate or combined application of ceftriaxone and levofloxacin, which we attribute to a bactericidal effect of the antibiotics on maggot pathogens. Depending on the concentration of the antibiotics, an underestimation of the post-mortem interval between 24 and 48 h could be suspected. We conclude that antibiotics need to be considered if instar stages are to be used to determine the PMI and that some antibiotics may improve the breeding conditions of maggots.
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Affiliation(s)
- Daniel Preußer
- Brandenburg University of Technology Cottbus-Senftenberg, Chair of Ecology, Konrad-Wachsmann-Allee 6, 03046, Cottbus, Germany.
| | - Udo Bröring
- Brandenburg University of Technology Cottbus-Senftenberg, Chair of Ecology, Konrad-Wachsmann-Allee 6, 03046, Cottbus, Germany
| | - Thomas Fischer
- Brandenburg University of Technology Cottbus-Senftenberg, Central Analytical Laboratory, Konrad-Wachsmann-Allee 6, 03046, Cottbus, Germany; Study Program Forensic Sciences and Engineering, Erich-Weinert-Str. 1, 03046, Cottbus, Germany
| | - Thomas Juretzek
- Study Program Forensic Sciences and Engineering, Erich-Weinert-Str. 1, 03046, Cottbus, Germany; Carl-Thiem-Klinikum Cottbus, Thiemstr. 111, 03048, Cottbus, Germany
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12
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Bioactivity of Different Chemotypes of Oregano Essential Oil against the Blowfly Calliphora vomitoria Vector of Foodborne Pathogens. INSECTS 2021; 12:insects12010052. [PMID: 33440619 PMCID: PMC7826667 DOI: 10.3390/insects12010052] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 12/23/2022]
Abstract
Simple Summary Calliphora vomitoria L. is a very common synanthropic blowfly. Since it is attracted by human food, it plays a main role in the transmission of foodborne diseases. Among aromatic plant essential oils (EOs), those of spices are the most suitable to protect food from insect pests. In the present work, we determined the bioactivity of three oregano EOs against C. vomitoria. The chemical analyses showed that the EOs belonged to three chemotypes, one with a prevalence of carvacrol and two with a prevalence of thymol. The bioassays showed that the bioactivity of the EOs significantly varies among chemotypes, with the thymol chemotype showing an overall higher efficacy compared to the carvacrol one. Abstract Blowflies play a substantial role as vectors of microorganisms, including human pathogens. The control of these insect pests is an important aspect of the prevention of foodborne diseases, which represent a significant public health threat worldwide. Among aromatic plants, spices essential oils (EOs) are the most suitable to protect food from insect pests. In this study, we determined the chemical composition of three oregano EOs and assessed their toxicity and deterrence to oviposition against the blowfly Calliphora vomitoria L. The chemical analyses showed that the EOs belonged to three chemotypes: one with a prevalence of carvacrol, the carvacrol chemotype (CC; carvacrol, 81.5%), and two with a prevalence of thymol, the thymol/p-cymene and thymol/γ-terpinene chemotypes (TCC and TTC; thymol, 43.8, and 36.7%, respectively). The bioassays showed that although all the three EOs chemotypes are able to exert a toxic activity against C. vomitoria adults (LD50 from 0.14 to 0.31 μL insect−1) and eggs (LC50 from 0.008 to 0.038 μL cm−2) as well as deter the oviposition (Oviposition Activity Index, OAI, from 0.40 ± 0.04 to 0.87 ± 0.02), the bioactivity of oregano EOs significantly varies among the chemotypes, with the thymol-rich EOs (TCC and TTC) overall demonstrating more effectiveness than the carvacrol-rich (CC) EO.
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13
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Kuria SK, Oyedeji AO. Human myiasis cases originating and reported in africa for the last two decades (1998-2018): A review. Acta Trop 2020; 210:105590. [PMID: 32561225 DOI: 10.1016/j.actatropica.2020.105590] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/14/2020] [Accepted: 06/14/2020] [Indexed: 01/25/2023]
Abstract
The article reviews literature on myiasis in Africa and cases that originated in Africa over the last two decades (1998-2018). The relevant literature was obtained by using several databases (Science-Direct, JSTOR, Google Scholar, Ebscohost and PubMed). We searched for the following words or their combination myiasis, maggots, fly species responsible for myiasis found in Africa, and the different types of myiasis. References in several articles provided links to other relevant works. Only papers written in English were reviewed. In total, we reviewed 51 articles which covered a total of 849 myiasis cases. The review encompasses geographical distribution of the disease, dipteran species responsible, predisposing factors, sex of the patient, type of myiasis and treatment. Myiasis is found in most parts of the African continent, however only 18 articles reported myiasis cases in Africa during the period under review. The rest of the articles report cases from the rest of the world but acquired by travellers when visiting Africa. Cordylobia anthropophaga (Blanchard) was responsible for 93.28% of all the reported cases in this review. The low number of articles on human myiasis reported in Africa may be due to underreporting by physicians or most cases are not diagnosed. Therefore, the actual prevalence of myiasis in Africa is currently unknown.
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Affiliation(s)
- Simon K Kuria
- Department of Biological and Environmental Sciences, Walter Sisulu University, P/Bag X1, Mthatha 5117, South Africa.
| | - Adebola O Oyedeji
- Department of Chemical and Physical Sciences, Walter Sisulu University, P/Bag X1, Mthatha 5117, South Africa.
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14
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Mokrane S, Cavallo G, Tortorici F, Romero E, Fereres A, Djelouah K, Verrastro V, Cornara D. Behavioral effects induced by organic insecticides can be exploited for a sustainable control of the Orange Spiny Whitefly Aleurocanthus spiniferus. Sci Rep 2020; 10:15746. [PMID: 32978466 PMCID: PMC7519102 DOI: 10.1038/s41598-020-72972-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 09/03/2020] [Indexed: 11/29/2022] Open
Abstract
The Orange Spiny Whitefly (OSW) Aleurocanthus spiniferus (Hemiptera: Aleyrodidae) represents a new serious threat to Citrus spp., grapevine and ornamental plants in the whole Mediterranean area. Such threat urgently calls for the development of a sustainable control strategy, including insecticides compatible with biological control, and applicable also in organic citrus farming that represent an essential part of Mediterranean agricultural economy. Therefore, we evaluated the toxicity and the effects on host searching, oviposition, and probing and feeding behavior exerted on OSW by organic insecticides supposed to have limited side effects on environment and ecosystem services, i.e. sweet orange essential oil (EO), extract of Clitoria ternatea (CT), mineral oil, pyrethrin and azadirachtin. Despite none of the compounds caused a significant mortality of any of the OSW instars, we observed interesting effects on whitefly behavior: (i) EO and pyrethrin showed a relevant repellent effect, with impairment of both adults landing and oviposition on treated plants; (ii) CT and pyrethrin strongly affected probing behavior. Here, in the light of our findings, we discuss possible OSW sustainable control strategies and further research perspectives.
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Affiliation(s)
- Selma Mokrane
- International Centre for Advanced Mediterranean Agronomic Studies - Institute of Bari (CIHEAM-Bari), Via Ceglie 9, 70010, Valenzano, BA, Italy
| | - Giuseppe Cavallo
- International Centre for Advanced Mediterranean Agronomic Studies - Institute of Bari (CIHEAM-Bari), Via Ceglie 9, 70010, Valenzano, BA, Italy
| | - Francesco Tortorici
- Dipartimento Di Scienze Agrarie, Forestali Ed Alimentari DISAFA, University of Torino, Largo Braccini 2, 10095, Grugliasco, TO, Italy
| | - Elena Romero
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Ciencias Agrarias (ICA), Calle Serrano 115dpdo, 28006, Madrid, Spain
| | - Alberto Fereres
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Ciencias Agrarias (ICA), Calle Serrano 115dpdo, 28006, Madrid, Spain
| | - Khaled Djelouah
- International Centre for Advanced Mediterranean Agronomic Studies - Institute of Bari (CIHEAM-Bari), Via Ceglie 9, 70010, Valenzano, BA, Italy
| | - Vincenzo Verrastro
- International Centre for Advanced Mediterranean Agronomic Studies - Institute of Bari (CIHEAM-Bari), Via Ceglie 9, 70010, Valenzano, BA, Italy
| | - Daniele Cornara
- International Centre for Advanced Mediterranean Agronomic Studies - Institute of Bari (CIHEAM-Bari), Via Ceglie 9, 70010, Valenzano, BA, Italy.
- Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Ciencias Agrarias (ICA), Calle Serrano 115dpdo, 28006, Madrid, Spain.
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15
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Napoli E, Siracusa L, Ruberto G. New Tricks for Old Guys: Recent Developments in the Chemistry, Biochemistry, Applications and Exploitation of Selected Species from the Lamiaceae Family. Chem Biodivers 2020; 17:e1900677. [PMID: 31967708 DOI: 10.1002/cbdv.201900677] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 01/21/2020] [Indexed: 12/13/2022]
Abstract
Lamiaceae is one of the largest families of flowering plants comprising about 250 genera and over 7,000 species. Most of the plants of this family are aromatic and therefore important source of essential oils. Lamiaceae are widely used as culinary herbs and reported as medicinal plants in several folk traditions. In the Mediterranean area oregano, sage, rosemary, thyme and lavender stand out for geographical diffusion and variety of uses. The aim of this review is to provide recent data dealing with the phytochemical and pharmacological studies, and the more recent applications of the essential oils and the non-volatile phytocomplexes. This literature survey suggests how the deeper understanding of biomolecular processes in the health and food sectors as per as pest control bioremediation of cultural heritage, or interaction with human microbiome, fields, leads to the rediscovery and new potential applications of well-known plants.
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Affiliation(s)
- Edoardo Napoli
- Istituto del CNR di Chimica Biomolecolare, Via Paolo Gaifami, 18, IT-95126, Catania, Italy
| | - Laura Siracusa
- Istituto del CNR di Chimica Biomolecolare, Via Paolo Gaifami, 18, IT-95126, Catania, Italy
| | - Giuseppe Ruberto
- Istituto del CNR di Chimica Biomolecolare, Via Paolo Gaifami, 18, IT-95126, Catania, Italy
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16
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Allium sativum, Rosmarinus officinalis, and Salvia officinalis Essential Oils: A Spiced Shield against Blowflies. INSECTS 2020; 11:insects11030143. [PMID: 32106555 PMCID: PMC7143423 DOI: 10.3390/insects11030143] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/11/2020] [Accepted: 02/20/2020] [Indexed: 12/21/2022]
Abstract
Blowflies are known vectors of many foodborne pathogens and unintentional human ingestion of maggots by meat consumption may lead to intestinal myiasis. In fact, the control of insect pests is an important aspect of industrial and home-made food processing and blowflies (Diptera: Calliphoridae), which are among the most important pests involved in the damage of meat products. Most spices, largely used in food preparations and industry, contain essential oils that are toxic and repellent against insects and exert antimicrobial activity. In this study, we assessed the electro-antennographic responses, the oviposition deterrence, the toxicity, and the repellence of the essential oils (EOs) of Allium sativum L., Salvia officinalis L., and Rosmarinus officinalis L. against the blowfly Calliphora vomitoria L. We tested the EOs antibacterial and antifungal properties and the efficacy of an A. sativum EO-charged mist sprayed in the tunnel entryway of a meat processing room to form an olfactive barrier against the entrance of flies. The results showed that the EOs are perceived by female blowfly’ antennae and exert an evident repellent activity against them completely deterring the oviposition for up to 24 h starting from the concentration of 2.5 μL cm−2 EO. The EOs also exhibited toxic activity by both topical application (LD50 from 0.44 to 1.97 μL insect−1) and fumigation (LC50 from 1.76 to 31.52 μL L−1) against adults of C. vomitoria and were able to exert a clear antimicrobial activity toward pathogens. Lastly, the EO-charged mist was able to reduce by about 40% the presence of Calliphoridae in the meat processing room of a dry-ham factory.
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17
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da Costa KS, Galúcio JM, da Costa CHS, Santana AR, dos Santos Carvalho V, do Nascimento LD, Lima e Lima AH, Neves Cruz J, Alves CN, Lameira J. Exploring the Potentiality of Natural Products from Essential Oils as Inhibitors of Odorant-Binding Proteins: A Structure- and Ligand-Based Virtual Screening Approach To Find Novel Mosquito Repellents. ACS OMEGA 2019; 4:22475-22486. [PMID: 31909330 PMCID: PMC6941369 DOI: 10.1021/acsomega.9b03157] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/29/2019] [Indexed: 05/31/2023]
Abstract
Odorant-binding proteins (OBPs) are the main olfactory proteins of mosquitoes, and their structures have been widely explored to develop new repellents. In the present study, we combined ligand- and structure-based virtual screening approaches using as a starting point 1633 compounds from 71 botanical families obtained from the Essential Oil Database (EssOilDB). Using as reference the crystallographic structure of N,N-diethyl-meta-toluamide interacting with the OBP1 homodimer of Anopheles gambiae (AgamOBP1), we performed a structural and pharmacophoric similarity search to select potential natural products from the library. Thymol acetate, 4-(4-methyl phenyl)-pentanal, thymyl isovalerate, and p-cymen-8-yl demonstrated a favorable chemical correlation with DEET and also had high-affinity interactions with the OBP binding pocket that molecular dynamics simulations showed to be stable. To the best of our knowledge, this is the first study to evaluate on a large scale the potentiality of NPs from essential oils as inhibitors of the mosquito OBP1 using in silico approaches. Our results could facilitate the design of novel repellents with improved selectivity and affinity to the protein binding pocket and can shed light on the mechanism of action of these compounds against insect olfactory recognition.
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Affiliation(s)
- Kauȇ Santana da Costa
- Institute
of Biodiversity, Federal University of Western
Pará, 68035-110 Santarém, Pará, Brazil
| | - João Marcos Galúcio
- Institute
of Biodiversity, Federal University of Western
Pará, 68035-110 Santarém, Pará, Brazil
| | | | - Amanda Ruslana Santana
- Department
of Pharmaceutical Sciences, Federal University
of Pará, 66060-902 Belém, Pará, Brazil
| | - Vitor dos Santos Carvalho
- Institute of Exact and Natural
Sciences and Institute of Biological Sciences, Federal
University of Pará, 66075-110 Belém, Pará, Brazil
| | | | - Anderson Henrique Lima e Lima
- Institute of Exact and Natural
Sciences and Institute of Biological Sciences, Federal
University of Pará, 66075-110 Belém, Pará, Brazil
| | - Jorddy Neves Cruz
- Department
of Pharmaceutical Sciences, Federal University
of Pará, 66060-902 Belém, Pará, Brazil
| | - Claudio Nahum Alves
- Institute of Exact and Natural
Sciences and Institute of Biological Sciences, Federal
University of Pará, 66075-110 Belém, Pará, Brazil
| | - Jerônimo Lameira
- Institute of Exact and Natural
Sciences and Institute of Biological Sciences, Federal
University of Pará, 66075-110 Belém, Pará, Brazil
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Matailo A, Bec N, Calva J, Ramírez J, Andrade JM, Larroque C, Vidari G, Armijos C. Selective BuChE inhibitory activity, chemical composition, and enantiomer content of the volatile oil from the Ecuadorian plant Clinopodium brownei. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2019. [DOI: 10.1016/j.bjp.2019.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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19
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Romani R, Bedini S, Salerno G, Ascrizzi R, Flamini G, Echeverria MC, Farina P, Conti B. Andean Flora as a Source of New Repellents against Insect Pests: Behavioral, Morphological and Electrophysiological Studies on Sitophilus zeamais (Coleoptera: Curculionidae). INSECTS 2019; 10:insects10060171. [PMID: 31207971 PMCID: PMC6628024 DOI: 10.3390/insects10060171] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/05/2019] [Accepted: 06/11/2019] [Indexed: 11/29/2022]
Abstract
Sitophilus zeamais (Motschulsky) is considered as one of the most destructive foodstuff pests. Due to their efficiency, low toxicity for mammalians and low environmental impact, plant-derived essential oils (EOs) are promising tools for pest control. In particular, the OEs extracted from Lamiaceae are considered among the most bioactive in terms of repellent and/or insecticidal effect. Here, we investigated the repellence of the EOs extracted from two aromatic plant species typical of the flora of the Ecuadorian Andes, Clinopodium tomentosum and C. nubigeum, against adults of S. zeamais. The behavioral assays carried out at concentrations ranging from 0.7 to 23.9 μL L−1 air in a two-way static olfactometer showed a significant repellent effect starting from the concentration of 8.4 mL L−1 air both for the EO of C. nubigenum and C. tomentosum. We also carried out a complete structural analysis of the antenna of S. zeamais using scanning (SEM) and transmission electron microscopy (TEM), in order to characterize the olfactory sensilla equipment. In this species, there is no sexual dimorphism also as regards to the antennal morphology and the sensilla type and distribution. We identified six type of sensilla, among which at least three types (Sensillum Trichoideum 1, Sensillum Trichoideum 2 and Grooved Peg Sensillum) can be considered as olfactory. Electroantennography (EAG) recordings carried out on S. zeamais revealed a positive dose-response to both EOs, without differences between the two sexes.
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Affiliation(s)
- Roberto Romani
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121 Perugia, Italy.
| | - Stefano Bedini
- Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy.
| | - Gianandrea Salerno
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121 Perugia, Italy.
| | | | - Guido Flamini
- Department of Pharmacy, University of Pisa, 56122 Pisa, Italy.
| | - Maria Cristina Echeverria
- Facultad de Ingeniería en Ciencias Agropecuarias y Ambientales, Grupo de Investigaciones Ambientales y Biotecnológicas, Universidad Tecnica del Norte, Ibarra 100105, Ecuador.
| | - Priscilla Farina
- Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy.
| | - Barbara Conti
- Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy.
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