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Houzi G, El abdali Y, Beniaich G, Chebaibi M, Taibi M, Elbouzidi A, Kaioua S, Asehraou A, Addi M, Chaabane K, Flouchi R, Allali A, Khal-Layoun S. Antifungal, Insecticidal, and Repellent Activities of Rosmarinus officinalis Essential Oil and Molecular Docking of Its Constituents against Acetylcholinesterase and β-Tubulin. SCIENTIFICA 2024; 2024:5558041. [PMID: 39135848 PMCID: PMC11319058 DOI: 10.1155/2024/5558041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 07/14/2024] [Accepted: 07/22/2024] [Indexed: 08/15/2024]
Abstract
The aim of this study was to determine the phytochemical composition and evaluate the antifungal and insecticidal properties of Rosmarinus officinalis essential oil (EO). GC-MS was employed to analyze the phytochemical profile of the EO. The antifungal activity of the EO was assessed by calculating growth inhibition rates for Alternaria alternata, Fusarium oxysporum, and Botrytis cinerea. Repellent capacity and toxicity were evaluated through inhalation and contact tests on Callosobruchus maculatus. Molecular docking techniques were utilized to test the insecticidal and antifungal activities of rosemary EO. The analysis revealed a total of sixteen components in R. officinalis EO, with 1,8-cineole (40.80%) being the major constituent, followed by α-pinene (26.18%) and camphor (19.53%). Antifungal evaluation demonstrated a significant inhibitory impact on the mycelial growth of the tested fungi, with complete inhibition observed against B. cinerea. In terms of insecticidal capacity, the EO induced complete mortality of C. maculatus adults at a concentration of 1 μL/L air, with an inhalation test LC50 value of 0.62 μL/L air. Concentration-dependent reductions were observed in the number of both laid eggs and emerged insects, reaching a 99.36% reduction. The EO also exhibited a moderate effectiveness in repelling insects, with an average repellency rate of 50.83%. In silico analysis identified borneol as the most active molecule against insect acetylcholinesterase (PDB: 6ARY) with a Glide score of -7.254 kcal/mol. α-Caryophyllene showed the highest activity against B. cinerea β-tubulin (PDB: 3N2G) with a Glide score of -7.025 kcal/mol. These findings suggest that the EO derived from Moroccan Rosmarinus officinalis has potential as an effective natural agent against pathogenic fungi and could serve as a sustainable and environmentally friendly alternative as a bioinsecticide.
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Affiliation(s)
- Ghizlane Houzi
- Laboratory of Biology and HealthFaculty of SciencesUniversity of Ibn Tofail, Kenitra, Morocco
| | - Youness El abdali
- Laboratory of Biotechnology, Environment, Agri-Food and HealthFaculty of Sciences Dhar El MahrazSidi Mohammed Ben Abdellah University, Fez 30000, Morocco
| | - Ghada Beniaich
- Laboratory of Engineering, Electrochemistry, Modeling and Environment (LIEME)Faculty of Sciences Dhar El MahrazSidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Mohamed Chebaibi
- Higher Institute of Nursing Professions and Health Techniques, Fez 30000, Morocco
- Biomedical and Translational Research LaboratoryFaculty of Medicine and Pharmacy of FezSidi Mohamed Ben Abdellah University, Fez 30000, Morocco
| | - Mohamed Taibi
- Laboratoire d'Amélioration des Productions Agricoles, Biotechnologie et Environnement (LAPABE)Faculté des SciencesUniversité Mohammed Premier, Oujda 60000, Morocco
| | - Amine Elbouzidi
- Laboratoire d'Amélioration des Productions Agricoles, Biotechnologie et Environnement (LAPABE)Faculté des SciencesUniversité Mohammed Premier, Oujda 60000, Morocco
| | - Samiha Kaioua
- Laboratory of Plant, Animal and Agro-Industry ProductionsFaculty of SciencesUniversity of Ibn Tofail, Kenitra, Morocco
| | - Abdeslam Asehraou
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and HealthFaculty of SciencesMohammed First University, Boulevard Mohamed VI, B.P. 717, Oujda 60000, Morocco
| | - Mohamed Addi
- Laboratoire d'Amélioration des Productions Agricoles, Biotechnologie et Environnement (LAPABE)Faculté des SciencesUniversité Mohammed Premier, Oujda 60000, Morocco
| | - Khalid Chaabane
- Laboratoire d'Amélioration des Productions Agricoles, Biotechnologie et Environnement (LAPABE)Faculté des SciencesUniversité Mohammed Premier, Oujda 60000, Morocco
| | - Rachid Flouchi
- Microbial Biotechnology and Bioactive Molecules LaboratorySciences and Technologies FacultySidi Mohamed Ben Abdellah University, Fez, Morocco
- Ministry of Health and Social ProtectionHigh Institute of Nursing Professions and Health Techniques Annex Taza, Fez, Morocco
| | - Aimad Allali
- Laboratory of Engineering, Electrochemistry, Modeling and Environment (LIEME)Faculty of Sciences Dhar El MahrazSidi Mohamed Ben Abdellah University, Fez, Morocco
- Higher Institute of Nursing Professions and Health Techniques, Fez 30000, Morocco
- Laboratory of Plant, Animal and Agro-Industry ProductionsFaculty of SciencesUniversity of Ibn Tofail, Kenitra, Morocco
| | - Soad Khal-Layoun
- Laboratory of Biology and HealthFaculty of SciencesUniversity of Ibn Tofail, Kenitra, Morocco
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Ben Saad R, Ben Romdhane W, Wiszniewska A, Baazaoui N, Taieb Bouteraa M, Chouaibi Y, Alfaifi MY, Kačániová M, Čmiková N, Ben Hsouna A, Garzoli S. Rosmarinus officinalis L. essential oil enhances salt stress tolerance of durum wheat seedlings through ROS detoxification and stimulation of antioxidant defense. PROTOPLASMA 2024:10.1007/s00709-024-01965-8. [PMID: 38940918 DOI: 10.1007/s00709-024-01965-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/17/2024] [Indexed: 06/29/2024]
Abstract
Salt-induced stress poses a significant barrier to agricultural productivity by impeding crop growth. Presently, environmentalists are dedicated to safeguarding food security by enhancing agricultural yields in challenging environments. Biostimulants play a crucial role in mitigating abiotic stresses in crop production, and among these, plant essential oils (EOs) stand out as organic substances with diverse biological effects on living organisms. Among the natural promoters of plant growth, Rosmarinus officinalis L. essential oil (RoEO) has gained considerable attention. Although the manifold effects of essential oils (EOs) on plant growth have been extensively demonstrated, their impact on salt stress tolerance in durum wheat seedlings remains unexplored. This investigation was undertaken to evaluate the biostimulatory capabilities of RoEO on the durum wheat cultivar "Mahmoudi." The effects of three RoEO concentrations (1, 2.5, and 5 ppm) on seed germination, growth establishment, and the induction of salt resistance under salinity conditions (150 mM NaCl) were tested. At 5 ppm, RoEO enhanced seedlings' tolerance to salinity by improving growth and reducing membrane deterioration and oxidative stress-induced damage. The expression profile analyses of seven stress-related genes (TdNHX1, TdSOS1, TdSOD, TdCAT, TdGA20-ox1, TdNRT2.1, and TdGS) using RT-qPCR showed enhancement of several important genes in durum wheat seedlings treated with 5 ppm RoEO, even under control conditions, which may be related to salt stress tolerance. The results indicate that the application of RoEO suggests a possible alternative strategy to increase salt tolerance in durum wheat seedlings towards better growth quality, thus increasing ROS scavenging and activation of antioxidant defense.
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Affiliation(s)
- Rania Ben Saad
- Centre of Biotechnology of Sfax, Biotechnology and Plant Improvement Laboratory, University of Sfax, B.P '1177', 3018, Sfax, Tunisia
| | - Walid Ben Romdhane
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, 11451, Riyadh, Saudi Arabia
| | - Alina Wiszniewska
- Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Kraków, Al. Mickiewicza 21, 31-120, Cracow, Poland
| | - Narjes Baazaoui
- Biology Department, College of Sciences and Arts Muhayil Assir, King Khalid University, 61421, Abha, Saudi Arabia
| | - Mohamed Taieb Bouteraa
- Centre of Biotechnology of Sfax, Biotechnology and Plant Improvement Laboratory, University of Sfax, B.P '1177', 3018, Sfax, Tunisia
- Faculty of Sciences of Bizerte UR13ES47, University of Carthage, BP W, 7021, Jarzouna, Bizerte, Tunisia
| | - Yosra Chouaibi
- Centre of Biotechnology of Sfax, Biotechnology and Plant Improvement Laboratory, University of Sfax, B.P '1177', 3018, Sfax, Tunisia
| | - Mohammad Y Alfaifi
- Biology Department, Faculty of Science, King Khalid University, 61421, Abha, Saudi Arabia
| | - Miroslava Kačániová
- Faculty of Horticulture, Institute of Horticulture, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76, Nitra, Slovakia
- School of Medical & Health Sciences, University of Economics and Human Sciences in Warsaw, Okopowa 59, 01-043, Warsaw, Poland
| | - Natália Čmiková
- Faculty of Horticulture, Institute of Horticulture, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76, Nitra, Slovakia
| | - Anis Ben Hsouna
- Centre of Biotechnology of Sfax, Biotechnology and Plant Improvement Laboratory, University of Sfax, B.P '1177', 3018, Sfax, Tunisia
- Department of Environmental Sciences and Nutrition, Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, 5100, Mahdia, Tunisia
| | - Stefania Garzoli
- Department of Chemistry and Technologies of Drug, Sapienza University, P.le Aldo Moro 5, 00185, Rome, Italy.
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Almeida NA, Freire L, Carnielli-Queiroz L, Bragotto APA, Silva NCC, Rocha LO. Essential oils: An eco-friendly alternative for controlling toxigenic fungi in cereal grains. Compr Rev Food Sci Food Saf 2024; 23:e13251. [PMID: 38284600 DOI: 10.1111/1541-4337.13251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/01/2023] [Accepted: 09/15/2023] [Indexed: 01/30/2024]
Abstract
Fungi are widely disseminated in the environment and are major food contaminants, colonizing plant tissues throughout the production chain, from preharvest to postharvest, causing diseases. As a result, grain development and seed germination are affected, reducing grain quality and nutritional value. Some fungal species can also produce mycotoxins, toxic secondary metabolites for vertebrate animals. Natural compounds, such as essential oils, have been used to control fungal diseases in cereal grains due to their antimicrobial activity that may inhibit fungal growth. These compounds have been associated with reduced mycotoxin contamination, primarily related to reducing toxin production by toxigenic fungi. However, little is known about the mechanisms of action of these compounds against mycotoxigenic fungi. In this review, we address important information on the mechanisms of action of essential oils and their antifungal and antimycotoxigenic properties, recent technological strategies for food industry applications, and the potential toxicity of essential oils.
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Affiliation(s)
- Naara A Almeida
- Department of Food Science, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Luísa Freire
- Department of Food Science, School of Food Engineering, University of Campinas, Campinas, Brazil
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul. Cidade Universitária, Campo Grande, Mato Grosso do Sul, Brazil
| | - Lorena Carnielli-Queiroz
- Department of Pharmaceutical Sciences, Health Sciences Center, Federal University of Espírito Santo, Vitória-Espírito Santo, Brazil
| | - Adriana P A Bragotto
- Department of Food Science, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Nathália C C Silva
- Department of Food Science, School of Food Engineering, University of Campinas, Campinas, Brazil
| | - Liliana O Rocha
- Department of Food Science, School of Food Engineering, University of Campinas, Campinas, Brazil
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Allagui MB, Moumni M, Romanazzi G. Antifungal Activity of Thirty Essential Oils to Control Pathogenic Fungi of Postharvest Decay. Antibiotics (Basel) 2023; 13:28. [PMID: 38247587 PMCID: PMC10812670 DOI: 10.3390/antibiotics13010028] [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: 10/24/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 01/23/2024] Open
Abstract
Essential oils (EOs) extracted from aromatic or medicinal plants are biodegradable, safe, and regarded as alternatives to chemical pesticides to reduce fungal species attacking different crops. In this study, thirty EOs at 0.5 mg/mL were evaluated for in vitro growth inhibition of the main postharvest fungi, which are Alternaria alternata, Botrytis cinerea, and Penicillium italicum. Cinnamomum verrum EO completely inhibited the mycelial growth of A. alternata and B. cinerea, and Syzygium aromaticum EO completely inhibited the mycelia of A. alternata. B. cinerea mycelial growth was completely inhibited by Gautheria fragrantissima, Cymbopogon nardus, Pelargonium asperum, and Cupressus sempervirens EOs. G. fragrantissima EO inhibited the mycelia growth of P. italicum by 98%. Overall, B. cinerea displayed the highest sensitivity to EOs than P. italicum and A. alternata. G. fragrantissima, C. sempervirens, C. nardus, P. asperum, Mentha piperita, Foeniculum vulgare, C. verrum, and S. aromaticum EOs showed the highest inhibition for these three pathogens. Minimum inhibitory concentrations were lower for C. verrum and S. aromaticum EOs, ranging between 0.31 and 0.45 mg/mL and 0.37 to 0.57 mg/mL, respectively, against the three pathogens. The tested EOs inhibited the in vitro growth of three of the main postharvest fungal pathogens. Further studies are needed to confirm these activities in vivo.
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Affiliation(s)
- Mohamed Bechir Allagui
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia (INRAT), University of Carthage, Rue Hedi Karray, Ariana 2080, Tunisia
| | - Marwa Moumni
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, 60131 Ancona, Italy; (M.M.); (G.R.)
| | - Gianfranco Romanazzi
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Via Brecce Bianche, 60131 Ancona, Italy; (M.M.); (G.R.)
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Álvarez-García S, Moumni M, Romanazzi G. Antifungal activity of volatile organic compounds from essential oils against the postharvest pathogens Botrytis cinerea, Monilinia fructicola, Monilinia fructigena, and Monilinia laxa. FRONTIERS IN PLANT SCIENCE 2023; 14:1274770. [PMID: 37860258 PMCID: PMC10582630 DOI: 10.3389/fpls.2023.1274770] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/13/2023] [Indexed: 10/21/2023]
Abstract
Gray mold and brown rot, caused respectively by Botrytis cinerea and Monilinia spp., are fungal diseases responsible for significant losses during the storage of fruit and vegetables. Nowadays, the control of postharvest diseases is shifting towards more sustainable strategies, including the use of plant secondary metabolites. In this study, the antifungal activity of Origanum vulgare, Thymus vulgaris, Thymus serpyllum, Melaleuca alternifolia, Lavandula officinalis, Lavandula hybrida, Citrus bergamia, Rosmarinus officinalis, Cinnamomum zeylanicum essential oils (EOs) in vapor phase was tested in vitro against B. cinerea, Monilinia fructicola, Monilinia fructigena, and Monilinia laxa. For the experiments, a protocol using a volatile organic compounds (VOC) chamber was designed. Results indicate a dose-dependent inhibitory activity of all the tested EOs, with O. vulgare, T. vulgaris, and T. serpyllum being the most active ones, with minimum inhibitory concentrations (MIC) of 22.73, 45.45, and 22.73 µl/L, respectively, against B. cinerea and a range between 5.64 and 22.73 µl/L against the three Monilinia spp. Overall, B. cinerea presented lower sensitivity to vapor-phase EOs than any of the Monilinia strains, except for the C. zeylanicum EO, which consistently showed higher inhibition against B. cinerea. Among the three Monilinia spp., M. fructicola was the least sensitive, while M. fructigena was the most sensitive. The use of VOC chambers proved to be a reliable protocol for the assessment of antimicrobial activities of EOs. These results suggest that the VOC emitted by the tested EOs are effective towards important decay-causing fungi, and that they could be used for the control of gray mold and brown rot in in vivo trials.
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Affiliation(s)
- Samuel Álvarez-García
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
- Plant Physiology Area, Engineering and Agricultural Sciences Department, Universidad de León, León, Spain
| | - Marwa Moumni
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Gianfranco Romanazzi
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
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Thoma JL, Cantrell CL, Tamang P, Zheljazkov VD. Determining the optimum mixture of three essential oils for potato sprout suppression at room temperature storage. FRONTIERS IN PLANT SCIENCE 2023; 14:1199117. [PMID: 37389299 PMCID: PMC10303126 DOI: 10.3389/fpls.2023.1199117] [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: 04/03/2023] [Accepted: 05/23/2023] [Indexed: 07/01/2023]
Abstract
As a staple crop, potatoes (Solanum tuberosum) play an important role in meeting daily caloric needs. To ensure adequate supplies for year-round consumption, potato quality must be maintained throughout lengthy storage periods. Towards this end, potato sprouting during storage must be minimized. Due to changing regulations regarding chemical means of potato sprout suppression, increased focus has turned to alternative products including essential oils (EO) as sprout suppressants in recent years. The complex composition of various EOs promises numerous options for sprout suppression. Furthermore, blends of several EOs may achieve enhanced sprout suppressant properties if synergistic interactions are present. We evaluated Syzygium aromaticum, Artemisia herba-alba, and Laurus nobilis EOs and blends thereof as sprout suppressants in potato cultivar Ranger Russet stored at room temperature and also tested for their antifungal activity against Colletotrichum fragariae, a causal organism of anthracnose disease in strawberries including other vegetables and fruits. A. herba-alba EO was an effective sprout suppressant when used alone and suppressed sprouting over the 90-day storage period. Interactions between A. herba-alba and S. aromaticum affected sprout length whereas interactions between A. herba-alba and L. nobilis EOs affected sprout number. An optimum blend of 50% - 82.31% A. herba-alba, 17.69% - 50% L. nobilis, and 0% - 1.01% S. aromaticum EOs could more effectively minimize tuber sprout length and number than any of the three whole EOs used alone. Among these three EOs, only S. aromaticum EO showed antifungal activity against C. fragariae in bioautography assay. These results exhibit the potential of EOs blends as a novel tactic in potato sprout suppression as well as potential natural product-based fungicides in managing C. fragariae.
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Affiliation(s)
- Jena L. Thoma
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, United States
| | - Charles L. Cantrell
- Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, University, MS, United States
| | - Prabin Tamang
- Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, University, MS, United States
| | - Valtcho D. Zheljazkov
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, United States
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Oğuz MÇ, Oğuz E, Güler M. Seed priming with essential oils for sustainable wheat agriculture in semi-arid region. PeerJ 2023; 11:e15126. [PMID: 37009155 PMCID: PMC10062347 DOI: 10.7717/peerj.15126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 03/04/2023] [Indexed: 03/29/2023] Open
Abstract
Drought is one of the major constraints to global crop production. A number of sustainable systems have focused on the development of environmentally friendly innovative biotechnological interventions to prevent yield losses. The use of essential oils as a seed priming agent can make an important contribution as a natural stimulant in increasing drought stress tolerance. This study focuses on the effects of seeds coated with different doses (D0 (0%), D1 (0.01%), D2 (0.05%), D3 (0.10%) and D4 (0.25%)) of sage, rosemary and lavender essential oils on wheat germination, seedling establishment and yield parameters. Turkey’s local wheat genotype Köse was used as plant material. The impact of the seed priming on germination rate, coleoptile length, shoot length, root length, shoot fresh and dry weight, root fresh and dry weight, relative water content (RWC), proline, and chlorophyll contents was assessed in laboratory experiments. In addition, the effect of essential oil types on yield parameters and agronomic components (plant height, spike height, number of grains per spike, grain yield per spike, grain yield per unit area, thousand-grain weight) was evaluated in a field experiment during the 2019–2020 crop seasons in a semi-arid climate. According to laboratory results, the highest germination rate among all treatment doses was determined in the D2 treatment (rosemary 93.30%, sage 94.00% and lavender 92.50%), while the lowest germination rates for all essential oil types were determined in the D4 treatment (rosemary 41.70%, sage 40.90% and lavender 40.90%). Increasing treatment doses showed a similar suppressive effect on the other parameters. In the field experiment, the highest grain yield (256.52 kg/da) and thousand-grain weight (43.30 g) were determined in the rosemary treatment. However, the priming treatment has an insignificant on the number of grains per spike and the spike length. The light of these results, the effects of essential oil types and doses on yield parameters were discussed. The findings highlight the importance of using essential oils in seed priming methods for sustainable agricultural practices.
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Assadpour E, Can Karaça A, Fasamanesh M, Mahdavi SA, Shariat-Alavi M, Feng J, Kharazmi MS, Rehman A, Jafari SM. Application of essential oils as natural biopesticides; recent advances. Crit Rev Food Sci Nutr 2023; 64:6477-6497. [PMID: 36728841 DOI: 10.1080/10408398.2023.2170317] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
There is an urgent need for the development of sustainable and eco-friendly pesticide formulations since common synthetic pesticides result in many adverse effects on human health and the environment. Essential oils (EOs) are a mixture of volatile oils produced as a secondary metabolite in medicinal plants, and show activities against pests, insects, and pathogenic fungi. Their chemical composition is affected by several factors such as plant species or cultivar, geographical origin, environmental conditions, agricultural practices, and extraction method. The growing number of studies related to the herbicidal, insecticidal, acaricidal, nematicidal, and antimicrobial effects of EOs demonstrate their effectiveness and suitability as sustainable and environment-friendly biopesticides. EOs can biodegrade into nontoxic compounds; at the same time, their harmful and detrimental effects on non-target organisms are low. However, few biopesticide formulations based on EOs have been turned into commercial practice upto day. Several challenges including the reduced stability and efficiency of EOs under environmental conditions need to be addressed before EOs are widely applied as commercial biopesticides. This work is an overview of the current research on the application of EOs as biopesticides. Findings of recent studies focusing on the challenges related to the use of EOs as biopesticides are also discussed.
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Affiliation(s)
- Elham Assadpour
- Food Industry Research Co, Gorgan, Iran
- Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Aslı Can Karaça
- Department Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Mahdis Fasamanesh
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Sahar Akhavan Mahdavi
- Food Industry Research Co, Gorgan, Iran
- Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Mahya Shariat-Alavi
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Jianguo Feng
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | | | - Abdur Rehman
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Universidade de Vigo, Ourense, Spain
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
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Phytofabrication of Silver Nanoparticles and Their Potent Antifungal Activity against Phytopathogenic Fungi. Processes (Basel) 2022. [DOI: 10.3390/pr10122558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Fungal plant pathogens cause huge losses in agricultural production by decreasing crop yield and quality. To reduce crop loss from fungal damage, various synthetic fungicides are applied indiscriminately in agricultural practice. The majority of synthetic fungicides are non-biodegradable, and several critical human health risks are associated with them. Green synthesis nanotechnology offers an effectual, cost-effective, ecofriendly, and innocuous method for the synthesis of green nanofungicides, an excellent replacement for synthetic chemical fungicides. Origanum majorana is an aromatic herb with immense pharmacological and medicinal properties. In this context, the present study used the leaves of O. majorana to synthesize silver nanoparticles. The biosynthesized particles showed an absorption peak at 441 nm with ultraviolet-visible spectrophotometry (UV-Vis). The spectra obtained from Fourier transform infrared spectroscopy (FT-IR) of O. majorana extract and AgNPs showed a myriad of functional groups corresponding to vital biomolecules that act as capping and reducing agents. The synthesized silver nanoparticles were spheroidal, and their size measured between 8 nm and 42 nm, as depicted by transmission electron microscopy (TEM). The energy-dispersive X-ray spectrum (EDX) showed a silver peak at 3 keV. The phytofabricated silver NPs demonstrated robust inhibitory activity on the mycelial growth of A. alternata f sp. lycopersici (87%), followed by Pestalotiopsis mangiferae (85%), Macrophomina phaseolina (78%), and Colletotrichum musae (75%). The minimum inhibitory concentration value for A. alternata. f sp. lycopersici and Pestalotiopsis mangiferae was 2 μg/mL, while the minimum fungicidal concentrations were 4 and 8 μg/mL, respectively. Additionally, the fabricated AgNPs induced severe damaging and destructive effects to the morphology of hyphae and conidia, as witnessed by scanning electron microscopy studies.
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Potential Action Mechanism and Inhibition Efficacy of Morinda citrifolia Essential Oil and Octanoic Acid against Stagonosporopsis cucurbitacearum Infestations. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165173. [PMID: 36014413 PMCID: PMC9414982 DOI: 10.3390/molecules27165173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/02/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022]
Abstract
The use of plant-based products has been shown to efficiently inhibit fungi-mediated diseases in agricultural crops. Here, we extracted and evaluated the composition of noni, Morinda citrifolia L., essential oil and assessed its activities against Stagonosporopsis cucurbitacearum in Cucumis melo L. Using in silico molecular approaches, potential interactions between the essential oil major components and S. cucurbitacearum tyrosine-tRNA ligase were predicted. Finally, we also measured the potential interference of plant physiology (the stomatal conductance and net photosynthesis) mediated by the application of the M. citrifolia essential oil. Chromatographic analysis revealed that octanoic acid (75.8%), hexanoic acid (12.8%), and isobutyl pent-4-enyl carbonate (3.1%) were the major essential oil compounds. Octanoic acid and noni essential oil, when used as preventive measures, reduce fungal mycelial growth at a concentration of 5 mg/mL without causing significant damage to the treated leaves, which reinforces their efficacies as preventive tools against S. cucurbitacearum. Molecular docking analyses predicted very stable interactions between the major essential oil constituents and S. cucurbitacearum tyrosine-tRNA ligase, suggesting the interference of these plant-based molecules upon enzyme activation. Octanoic acid and M. citrifolia essential oil at concentrations of 20 mg/mL decreased the stomatal conductance and net photosynthesis rate of melon plants, resulting in robust phytotoxicity. Collectively, our findings indicated that despite the phytotoxicity risks at higher concentrations, M. citrifolia essential oil and octanoic acid, have potential as alternative tools for the integrative management of S. cucurbitacearum.
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Shamsheer B, Riaz N, Yousaf Z, Hyder S, Aftab A, Iqbal R, Rahman MHU, Al-Ashkar I, F. Almutairi K, El Sabagh A. Genetic diversity analysis for wild and cultivated accessions of Cymbopogon citratus (D.C.) Stapf using phytochemical and molecular markers. PeerJ 2022; 10:e13505. [PMID: 35789659 PMCID: PMC9250312 DOI: 10.7717/peerj.13505] [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: 12/21/2021] [Accepted: 05/06/2022] [Indexed: 01/17/2023] Open
Abstract
Background Genetic diversity is being lost because of increasing urbanization and decreasing cultivation land, which leads to the abrupt use of wild resources of medicinally aromatic plants (MAPs). Cymbopogon citratus is a morphologically diverse MAP that is largely exploited in the food, cosmetics, and pharmaceutical industries. However, the intraspecific phytochemical and molecular diversity of C. citratus has yet to be explored. Methodology The germplasm was obtained from four different countries representing Pakistan, India, Bangladesh, and the United States. Oil extraction was performed by hydro distillation, and metabolic profiles of different accessions were generated by GC-MS. Seventeen functional molecular markers based on three genes encoding cytochrome P450, uridyl diphosphate glycosyltransferase and the 5S rRNA gene family were used to explore genetic diversity. Principal component analysis (PCA) and heatmaps were constructed using R software with the help of the gg-plot R package v1.0.5 for data validation. Results Among the 208 identified metabolites, citral was maximal, with a phytochemical contribution (1.92-27.73%), α-pinene (0.82-15.57%), verbenol (0.24-22.84%), neral (0.23-21.31%) and geranial acetate (0.43-15.65%). In the majority of accessions, citral was the dominant component. The highest concentration of citral was detected in 384541 (27.74%), 384527 (27.52%) belonging to Pakistan and one USA-based accession 38456 (27.71%). Region-specific grouping revealed a relationship between genetic diversity and geographical location. Pakistani accessions 384518, 38452, and 384544 genetically and 384535, 384518, and 384510 were phytochemically diverse. Conclusion The genetic diversity was more pronounced in cultivated accessions than in wild accessions. Moreover, it was observed that phytochemical diversity correlated with the altitude and temperature of the region.
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Affiliation(s)
- Bushra Shamsheer
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Nadia Riaz
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Zubaida Yousaf
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Sajjad Hyder
- Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Arusa Aftab
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Rashid Iqbal
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bhawalpur, Bahawalpur, Pakistan
| | - Muhammad Habib ur Rahman
- Crop Science Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Bonn, Germany
| | - Ibrahim Al-Ashkar
- Department of Plant Production, College of Food and Agriculture, King Saud University, Riyadh, Saudi Arabia
| | - Khalid F. Almutairi
- Department of Plant Production, College of Food and Agriculture, King Saud University, Riyadh, Saudi Arabia
| | - Ayman El Sabagh
- Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Shaikh, Egypt
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Paparella A, Nawade B, Shaltiel-Harpaz L, Ibdah M. A Review of the Botany, Volatile Composition, Biochemical and Molecular Aspects, and Traditional Uses of Laurus nobilis. PLANTS 2022; 11:plants11091209. [PMID: 35567209 PMCID: PMC9100900 DOI: 10.3390/plants11091209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 11/26/2022]
Abstract
Laurus nobilis L. is an aromatic medicinal plant widely cultivated in many world regions. L. nobilis has been increasingly acknowledged over the years as it provides an essential contribution to the food and pharmaceutical industries and cultural integrity. The commercial value of this species derives from its essential oil, whose application might be extended to various industries. The chemical composition of the essential oil depends on environmental conditions, location, and season during which the plants are collected, drying methods, extraction, and analytical conditions. The characterization and chemotyping of L. nobilis essential oil are extremely important because the changes in composition can affect biological activities. Several aspects of the plant’s secondary metabolism, particularly volatile production in L. nobilis, are still unknown. However, understanding the molecular basis of flavor and aroma production is not an easy task to accomplish. Nevertheless, the time-limited efforts for conservation and the unavailability of knowledge about genetic diversity are probably the major reasons for the lack of breeding programs in L. nobilis. The present review gathers the scientific evidence on the research carried out on Laurus nobilis L., considering its cultivation, volatile composition, biochemical and molecular aspects, and antioxidant and antimicrobial activities.
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Affiliation(s)
- Antonello Paparella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Balzarini, 1, 64100 Teramo, Italy;
| | - Bhagwat Nawade
- Newe Yaar Research Center, Agricultural Research Organization, Ramat Yishay 30095, Israel;
| | - Liora Shaltiel-Harpaz
- Migal Galilee Research Institute, Kiryat Shmona 11016, Israel;
- Environmental Sciences Department, Tel Hai College, Upper Galilee 12210, Israel
| | - Mwafaq Ibdah
- Newe Yaar Research Center, Agricultural Research Organization, Ramat Yishay 30095, Israel;
- Correspondence: ; Tel.: +972-4-953-9537; Fax: +972-4-983-6936
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Grati Affes T, Chenenaoui S, Zemni H, Hammami M, Bachkouel S, Aidi Wannes W, Nasraoui B, Saidani Tounsi M, Lasram S. Biological control of Citrus brown spot pathogen, "Alternaria alternata" by different essential oils. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022:1-14. [PMID: 35322739 DOI: 10.1080/09603123.2022.2055748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
The antifungal effects of laurel, myrtle and peppermint essential oils and their combinations were investigated in vitro on two strains of Alternaria alternata mycelial growth and in vivo on detached Citrus leaf disease incidence. Myrtle essential oil was rich in α-pinene and 1,8-cineole while peppermint essential oil in menthol and menthone. 1,8-Cineole was the main component of the essential oils from laurel, laurel + myrtle and peppermint + laurel. The combined peppermint and myrtle essential oil was characterized by the predominance of menthol and 1,8-cineole. All tested essential oils, incorporated in potato-dextrose agar, inhibited A. alternata mycelial growth and had a fungistatic effect at concentration 3 mg/mL of medium. A great synergism was detected between peppermint and laurel essential oils against the two strains of A. alternata. The combined laurel and peppermint essential oil reduced mycelial growth rates of inoculated detached leaves at concentration above 1.5 mg/mL.
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Affiliation(s)
- Taycir Grati Affes
- Laboratoire des Plantes Aromatiques et Médicinales, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
- LR/BPIA Institut National Agronomique de Tunisie (INAT), Université de Carthage, Tunis-Mahrajène Tunisie
| | - Synda Chenenaoui
- Laboratoire de Physiologie Moléculaire des Plantes, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
| | - Hassen Zemni
- Laboratoire de Physiologie Moléculaire des Plantes, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
| | - Majdi Hammami
- Laboratoire des Plantes Aromatiques et Médicinales, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
| | | | - Wissem Aidi Wannes
- Laboratoire des Plantes Aromatiques et Médicinales, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
| | - Bouzid Nasraoui
- LR/BPIA Institut National Agronomique de Tunisie (INAT), Université de Carthage, Tunis-Mahrajène Tunisie
| | - Moufida Saidani Tounsi
- Laboratoire des Plantes Aromatiques et Médicinales, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
| | - Salma Lasram
- Laboratoire de Physiologie Moléculaire des Plantes, Centre de Biotechnologie de Borj Cédria, Hammam-Lif, Tunisie
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El Abdali Y, Agour A, Allali A, Bourhia M, El Moussaoui A, Eloutassi N, Salamatullah AM, Alzahrani A, Ouahmane L, Aboul-Soud MAM, Giesy JP, Bouia A. Lavandula dentata L.: Phytochemical Analysis, Antioxidant, Antifungal and Insecticidal Activities of Its Essential Oil. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11030311. [PMID: 35161292 PMCID: PMC8840530 DOI: 10.3390/plants11030311] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 06/01/2023]
Abstract
Antioxidant, antifungal and insecticidal activities of essential oil (EO) extracted from the Moroccan lavender (Lavandula dentata) were investigated and their chemical constituents determined. Gas chromatography with flame ionization detection (GC-FID) and gas chromatography-mass spectrometry analyses (GC-MS) were used to examine the phytochemical composition of EO. Antioxidant potential was examined in vitro by use of three tests: DPPH inhibition, reducing power (FRAP) and total antioxidant capacity (TAC). Antifungal activity was assessed by calculating inhibition of growth of Alternaria alternata, Botrytis cinerea and Fusarium oxysporum. Repellent potential and toxicity of EO by contact and inhalation were performed against Callosobruchus maculatus. Sixteen constituents were detected in the EO of Lavandula dentata. The major component was linalool (45.06%) followed by camphor (15.62%) and borneol (8.28%). EO exhibited a significant antioxidant activity, as measured by DPPH and FRAP assays, with IC50 and EC50 values of 12.95 ± 1.300 mg/mL and 11.88 ± 0.23 mg/mL, respectively. EO of lavender exhibited total antioxidant capacity of 81.28 ± 2.28 mg AAE/g EO. EO of lavender showed an inhibitory effect on mycelial growth against tested fungi and was 100% in the case of B. cinerea. EO caused total mortality of adult C. maculatus from 5 µL/L air with LC50 value of 4.01 µL/L air. Significant reduction in numbers of eggs laid (99.2%) and emergence (100%) was observed in a dose-dependent manner up to maxima of 100% and 99.2%, respectively. EO of lavender also showed a moderate potency to repel insects with a mean of 34.44%. EO of Moroccan Lavandula dentata has potential to be an effective natural agent against free radical damage and could be an environmentally friendly alternative bio-fungicide and bio-insecticide.
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Affiliation(s)
- Youness El Abdali
- Laboratory of Biotechnology, Environment, Agri-Food and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, Fez 30050, Morocco; (A.E.M.); (A.B.)
| | - Abdelkrim Agour
- Laboratory of Natural Substances, Pharmacology, Environment, Modeling, Health & Quality of Life, Faculty of Sciences Dhar El Mahraz, Sidi Mohamed Ben Abdellah University, Fez 30050, Morocco;
| | - Aimad Allali
- Laboratory of Plant, Animal and Agro-Industry Productions, Faculty of Sciences, University of Ibn Tofail, Kenitra 14000, Morocco;
| | - Mohammed Bourhia
- Laboratory of Microbial Biotechnologies, AgroSciences and Environment, Labeled Research Unit-CNRST N° 4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco; (M.B.); (L.O.)
| | - Abdelfattah El Moussaoui
- Laboratory of Biotechnology, Environment, Agri-Food and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, Fez 30050, Morocco; (A.E.M.); (A.B.)
| | - Noureddine Eloutassi
- Laboratory of Pedagogy and Technological Innovation, Regional Centre of Education and Formation Professions, Fez 30050, Morocco;
| | - Ahmad Mohammed Salamatullah
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, 11 P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.M.S.); (A.A.)
| | - Abdulhakeem Alzahrani
- Department of Food Science & Nutrition, College of Food and Agricultural Sciences, King Saud University, 11 P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.M.S.); (A.A.)
| | - Lahcen Ouahmane
- Laboratory of Microbial Biotechnologies, AgroSciences and Environment, Labeled Research Unit-CNRST N° 4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco; (M.B.); (L.O.)
| | - Mourad A. M. Aboul-Soud
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
| | - John P. Giesy
- Toxicology Centre, University of Saskatchewan, 44 Campus Drive, Saskatoon, SK S7N 5B3, Canada;
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
- Department of Integrative Biology, Center for Integrative Toxicology, Michigan State University, East Lansing, MI 48824, USA
- Department of Environmental Science, Baylor University, One Bear Place #97266, Waco, TX 76798-7266, USA
| | - Abdelhak Bouia
- Laboratory of Biotechnology, Environment, Agri-Food and Health, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdellah University, Fez 30050, Morocco; (A.E.M.); (A.B.)
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Nematicidal Activity of Essential Oil from Lavandin ( Lavandula × intermedia Emeric ex Loisel.) as Related to Chemical Profile. Molecules 2021; 26:molecules26216448. [PMID: 34770856 PMCID: PMC8587996 DOI: 10.3390/molecules26216448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 01/24/2023] Open
Abstract
Essential oils (EOs) from lavandin are known for a large spectrum of biological properties but poorly and contrastingly documented for their activity against phytoparasitic nematodes. This study investigated the toxicity of EOs from three different lavandin cultivars, Abrialis, Rinaldi Cerioni, and Sumiens, either to juveniles (J2) and eggs of the root-knot nematode Meloidogyne incognita and to infective stages of the lesion nematode Pratylenchus vulnus. The suppressive activity of treatments with EOs from the three lavandin cultivars in soil infested by M. incognita was also investigated in a greenhouse experiment on potted tomato. The compositional profiles of tested EOs were also analyzed by GC-FID and GC-MS. Linalool was the major component of all the three EOs, as accounting for about 66%, 48%, and 40% of total EO from cv Rinaldi Cerioni, Sumiens, and Abrialis, respectively. Linalool acetate was the second most abundant compound in the EOs from cv Abrialis (18.3%) and Sumiens (14.9%), while significant amounts of camphor (11.5%) and 1,8-cineole (12.1%) were detected in cv Rinaldi Cerioni and Sumiens EOs, respectively. The mortality of M. incognita J2 peaked 82.0%, 95.8%, and 89.8% after a 24 h treatment with 100 mg·mL−1 solutions of cv Abrialis, Rinaldi Cerioni, and Sumiens EOs, respectively. Infective specimens of P. vulnus were largely more sensitive than M. incognita J2, as there were peak mortality rates of 65.5%, 67.7%, and 75.7% after 4 h of exposure to Abrialis, Rinaldi Cerioni, and Sumiens EO, respectively. All three lavandin EOs significantly affected also M. incognita egg hatchability, which reduced to 43.6% after a 48 h egg mass exposure to a 100 µg·mL−1 solution of cv Rinaldi Cerioni EO. Soil treatments with the three lavandin EOs strongly reduced, according to a dose–effect relationship, density of M. incognita eggs, and J2 both on tomato roots and in soil, as well as significantly reduced gall formation on tomato roots. Finally, almost all soil treatments with the lavandin EOs also resulted in a positive impact on tomato plant growth.
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Moumni M, Allagui MB, Mezrioui K, Ben Amara H, Romanazzi G. Evaluation of Seven Essential Oils as Seed Treatments against Seedborne Fungal Pathogens of Cucurbita maxima. Molecules 2021; 26:molecules26082354. [PMID: 33919567 PMCID: PMC8073776 DOI: 10.3390/molecules26082354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/08/2021] [Accepted: 04/14/2021] [Indexed: 12/03/2022] Open
Abstract
Essential oils are gaining interest as environmentally friendly alternatives to synthetic fungicides for management of seedborne pathogens. Here, seven essential oils were initially tested in vivo for disinfection of squash seeds (Cucurbita maxima) naturally contaminated by Stagonosporopsis cucurbitacearum, Alternaria alternata, Fusarium fujikuro, Fusarium solani, Paramyrothecium roridum, Albifimbria verrucaria, Curvularia spicifera, and Rhizopus stolonifer. The seeds were treated with essential oils from Cymbopogon citratus, Lavandula dentata, Lavandula hybrida, Melaleuca alternifolia, Laurus nobilis, and Origanum majorana (#1 and #2). Incidence of S. cucurbitacearum was reduced, representing a range between 67.0% in L. nobilis to 84.4% in O. majorana #2. Treatments at 0.5 mg/mL essential oils did not affect seed germination, although radicles were shorter than controls, except with C. citratus and O. majorana #1 essential oils. Four days after seeding, seedling emergence was 20%, 30%, and 10% for control seeds and seeds treated with C. citratus essential oil (0.5 mg/mL) and fungicides (25 g/L difenoconazole plus 25 g/L fludioxonil). S. cucurbitacearum incidence was reduced by ~40% for plantlets from seeds treated with C. citratus essential oil. These data show the effectiveness of this essential oil to control the transmission of S. cucurbitacearum from seeds to plantlets, and thus define their potential use for seed decontamination in integrated pest management and organic agriculture.
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Affiliation(s)
- Marwa Moumni
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (M.M.); (K.M.)
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Mohamed Bechir Allagui
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Kaies Mezrioui
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (M.M.); (K.M.)
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Hajer Ben Amara
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Gianfranco Romanazzi
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (M.M.); (K.M.)
- Correspondence: ; Tel.: +39-071-2204336
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Napoli E, Di Vito M. Toward a New Future for Essential Oils. Antibiotics (Basel) 2021; 10:antibiotics10020207. [PMID: 33669818 PMCID: PMC7923015 DOI: 10.3390/antibiotics10020207] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 02/16/2021] [Indexed: 02/05/2023] Open
Affiliation(s)
- Edoardo Napoli
- Istituto Chimica Biomolecolare—C.N.R., Via Paolo Gaifami 18, 95126 Catania, Italy
- Correspondence: (E.N.); (M.D.V.)
| | - Maura Di Vito
- Dipartimento di Scienze e Tecnologie Agro-Alimentari, Università of Bologna, Viale G. Fanin 42, 40127 Bologna, Italy
- Dipartimento di Scienze Biotecnologiche di Base, Cliniche Intensivologiche e Perioperatorie, Università Cattolica del Sacro Cuore, Largo A. Gemelli 8, 00168 Rome, Italy
- Correspondence: (E.N.); (M.D.V.)
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