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Dos Santos LB, de Lima Silva JR, Moreira AMT, Kamdem JP, Khan M, Muhammad N, AlAsmari AF, Alasmari F, Duarte AE, Ibrahim M. Response to carvacrol monoterpene in the emergence of Allium cepa L. seeds exposed to salt stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-32048-z. [PMID: 38261226 DOI: 10.1007/s11356-024-32048-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/14/2024] [Indexed: 01/24/2024]
Abstract
Abiotic stresses including sodium chloride (NaCl) are known to negatively affect plant physiology and seed germination by inducing a delay in establishing seedling emergence. The monoterpene carvacrol is the major component of several aromatic plants and seems to interfere with germination and seedling growth. In this study, we investigated whether treatment with carvacrol attenuates the effects of NaCl on the germination and development of Allium cepa, where biochemical parameters were also analyzed. The results showed that the Emergency Speed Index (ESI) was near to 2.0 in the control group. The groups NaCl, carvacrol alone, and in co-treatment with NaCl exhibited an ESI below 0.8, being significantly smaller when compared to the control. NaCl + carvacrol significantly inhibited seed emergence in relation to the NaCl group. Only the content of malondialdehyde was significantly altered by NaCl.
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Affiliation(s)
| | | | | | - Jean Paul Kamdem
- Biology and Toxicology Laboratory, Regional University of Cariri (URCA), Crato, CE, Brazil
- Department of Biochemistry, Microbiology and Immunology (BMI), College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK, S7N 5E5, Canada
| | - Momin Khan
- Department of Chemistry, Abdul Wali Khan University Mardan (AWKUM) KPK, Mardan, 23200, Pakistan
| | - Niaz Muhammad
- Department of Chemistry, Abdul Wali Khan University Mardan (AWKUM) KPK, Mardan, 23200, Pakistan
| | - Abdullah F AlAsmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Fawaz Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Antonia Eliene Duarte
- Biology and Toxicology Laboratory, Regional University of Cariri (URCA), Crato, CE, Brazil
| | - Mohammad Ibrahim
- Department of Chemistry, Abdul Wali Khan University Mardan (AWKUM) KPK, Mardan, 23200, Pakistan.
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Acheuk F, Basiouni S, Shehata AA, Dick K, Hajri H, Lasram S, Yilmaz M, Emekci M, Tsiamis G, Spona-Friedl M, May-Simera H, Eisenreich W, Ntougias S. Status and Prospects of Botanical Biopesticides in Europe and Mediterranean Countries. Biomolecules 2022; 12:biom12020311. [PMID: 35204810 PMCID: PMC8869379 DOI: 10.3390/biom12020311] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/03/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Concerning human and environmental health, safe alternatives to synthetic pesticides are urgently needed. Many of the currently used synthetic pesticides are not authorized for application in organic agriculture. In addition, the developed resistances of various pests against classical pesticides necessitate the urgent demand for efficient and safe products with novel modes of action. Botanical pesticides are assumed to be effective against various crop pests, and they are easily biodegradable and available in high quantities and at a reasonable cost. Many of them may act by diverse yet unexplored mechanisms of action. It is therefore surprising that only few plant species have been developed for commercial usage as biopesticides. This article reviews the status of botanical pesticides, especially in Europe and Mediterranean countries, deepening their active principles and mechanisms of action. Moreover, some constraints and challenges in the development of novel biopesticides are highlighted.
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Affiliation(s)
- Fatma Acheuk
- Laboratory for Valorization and Conservation of Biological Resources, Faculty of Sciences, University M’Hamed Bougara of Boumerdes, Boumerdes 35000, Algeria;
| | - Shereen Basiouni
- Clinical Pathology Department, Faculty of Veterinary Medicine, Benha University, Benha 13518, Egypt;
| | - Awad A. Shehata
- Research and Development Section, PerNaturam GmbH, 56290 Gödenroth, Germany;
| | - Katie Dick
- Hochschule Trier, Schneidershof, 54293 Trier, Germany;
| | - Haifa Hajri
- Laboratory of Molecular Physiology of Plants, Borj-Cedria Biotechnology Center, BP. 901, Hammam-Lif 2050, Tunisia; (H.H.); (S.L.)
| | - Salma Lasram
- Laboratory of Molecular Physiology of Plants, Borj-Cedria Biotechnology Center, BP. 901, Hammam-Lif 2050, Tunisia; (H.H.); (S.L.)
| | - Mete Yilmaz
- Department of Bioengineering, Bursa Technical University, Bursa 16310, Turkey;
| | - Mevlüt Emekci
- Department of Plant Protection, Faculty of Agriculture, Ankara University, Keçiören, Ankara 06135, Turkey;
| | - George Tsiamis
- Laboratory of Systems Microbiology and Applied Genomics, Department of Environmental Engineering, University of Patras, 2 Seferi St, 30100 Agrinio, Greece;
| | - Marina Spona-Friedl
- Bavarian NMR Center, Structural Membrane Biochemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85747 Garching, Germany;
| | - Helen May-Simera
- Institute of Molecular Physiology, Johannes Gutenberg-University of Mainz, 55128 Mainz, Germany;
| | - Wolfgang Eisenreich
- Bavarian NMR Center, Structural Membrane Biochemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85747 Garching, Germany;
- Correspondence: (W.E.); (S.N.)
| | - Spyridon Ntougias
- Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67132 Xanthi, Greece
- Correspondence: (W.E.); (S.N.)
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Milenković L, Ilić ZS, Šunić L, Tmušić N, Stanojević L, Stanojević J, Cvetković D. Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano. Saudi J Biol Sci 2021; 28:6532-6543. [PMID: 34764769 PMCID: PMC8568991 DOI: 10.1016/j.sjbs.2021.07.018] [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: 05/10/2021] [Revised: 07/04/2021] [Accepted: 07/05/2021] [Indexed: 01/15/2023] Open
Abstract
Thymus vulgaris L. (thyme), Origanum majorana L. (marjoram), and Origanum vulgare L. (oregano) were used to determine whether light modification (plants grown under nets with 40% shaded index or in un-shaded open field) could improve the quantity and quality of essential oils (EOs) and antioxidant activity. The yield of EOs of thyme, marjoram, and oregano obtained after 120 min of hydrodistillation was 2.32, 1.51, and 0.27 mL/100 g of plant material, respectively. At the same time under shading conditions plants synthetized more EOs (2.57, 1.68, and 0.32 mL/100 g of plant material). GC/MS and GC/FID analyses were applied for essential oils determinations. The main components of the thyme essential oil are thymol (8.05-9.35%); γ-terpinene (3.49-4.04%); p-cymene (2.80-3.60%) and caryophyllene oxide (1.54-2.15%). Marjoram main components were terpinene 4-ol (7.44-7.63%), γ-terpinene (2.82-2.86%) and linalool (2.04-2.65%) while oregano essential oil consisted of the following components: caryophyllene oxide (3.1-1.93%); germacrene D (1.17-2.0%) and (E)-caryophyllene (1.48-1.1%). The essential oil from thyme grown under shading (EC50 value after 20 min of incubation) have shown the highest antioxidant activity - 0.85 mg mL-1 in comparison to marjoram and oregano (shaded plants EC50 19.97 mg mL-1 and 7.02 mg mL-1 and unshaded, control plants EC50 54.01 mg mL-1 and 7.45 mg mL-1, respectively). The medicinal plants are a good source of natural antioxidants with potential application in the food and pharmaceutical industries. For production practice, it can be recommended to grow medicinal plants in shading conditions to achieve optimal quality parameters.
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Affiliation(s)
- Lidija Milenković
- University of Priština in Kosovska Mitrovica, Faculty of Agriculture, 38219 Lešak, Serbia
| | - Zoran S Ilić
- University of Priština in Kosovska Mitrovica, Faculty of Agriculture, 38219 Lešak, Serbia
| | - Ljubomir Šunić
- University of Priština in Kosovska Mitrovica, Faculty of Agriculture, 38219 Lešak, Serbia
| | - Nadica Tmušić
- University of Priština in Kosovska Mitrovica, Faculty of Agriculture, 38219 Lešak, Serbia
| | | | | | - Dragan Cvetković
- Faculty of Technology, University of Niš, 16000 Leskovac, Serbia
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Nikolova M, Yovkova M, Yankova-Tsvetkova E, Traikova B, Stefanova T, Aneva I, Berkov S. Biocidal Activity of Origanum vulgare subsp. hirtum Essential Oil. ACTA UNIVERSITATIS AGRICULTURAE ET SILVICULTURAE MENDELIANAE BRUNENSIS 2021. [DOI: 10.11118/actaun.2021.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Küçükaslan H, Usta A, Uluşahin M, Ercin ME, Patan H, Vanizor Kural B, Alhan E. Effects of L-Theanine on Hepatic Ischemia-Reperfusion Injury in Rats. EXP CLIN TRANSPLANT 2021. [PMID: 34763627 DOI: 10.6002/ect.2021.0290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES The effects of L-theanine on hepatic microcirculation during hepatic ischemia-reperfusion injury have not yet been investigated. The aim of this study was to investigate the influence of L-theanine on hepatic ischemia-reperfusion injury in rats. MATERIALS AND METHODS Thirty-two male Sprague Dawley rats weighing 250 to 300 g were used. Rats were divided into 4 groups: sham + saline, sham + L-theanine, hepatic ischemia-reperfusion injury + saline, and hepatic ischemia-reperfusion injury + L-theanine. Hepatic ischemia-reperfusion injury in rats was induced by 60 minutes of 70% ischemia and 4 hours of reperfusion. The extent of hepatic cell injury, functional capillary density, hepatic functions, and changes in some enzyme markers in hepatic tissue were investigated in the 4 groups. RESULTS The induction of hepatic ischemia-reperfusion injury resulted in significant increases in hepatic necrosis; serum activity of alanine aminotransferase, lactate dehydrogenase, gamma-glutamyltransferase, and tumor necrosis factor alpha; tissue activity of inducible nitric oxide synthase, myeloperoxidase, and malondialdehyde, and oxide glutathione; and H score for hypoxia-inducible factor 1-alpha in the liver. In the liver, there were significant reductions in reduced glutathione, ratio of reduced glutathione-to-oxide glutathione, and functional capillary density. The use of L-theanine improved these changes. CONCLUSIONS L-theanine demonstrated protective effects on hepatic injury after ischemia-reperfusion injury in rats. However, new studies are needed to confirm the preventive or reducing effects of L-theanine on hepatic ischemia-reperfusion injury.
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Affiliation(s)
- Hakan Küçükaslan
- From the Karadeniz Technical University, Faculty of Medicine, Department of General Surgery, Farabi Hospital, Trabzon, Turkey
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Solvent-Free Microwave Extraction of Thymus mastichina Essential Oil: Influence on Their Chemical Composition and on the Antioxidant and Antimicrobial Activities. Pharmaceuticals (Basel) 2021; 14:ph14080709. [PMID: 34451806 PMCID: PMC8400032 DOI: 10.3390/ph14080709] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 11/17/2022] Open
Abstract
Solvent-free microwave extraction (SFME) is a combination of microwave heating and dry distillation performed at atmospheric pressure without the addition of water or organic solvents that has been proposed as a green method for the extraction of essential oils from aromatic and medicinal herbs. In this work, SFME and the conventional techniques of steam distillation (SD) and hydrodistillation (HD) were compared with respect to the extraction and antioxidant and antimicrobial activities of Thymus mastichina essential oil. The main constituent of essential oils obtained using different methods was 1,8-cineole (eucalyptol). The results showed that the essential oils extracted by means of SFME in 30 min were quantitatively (yield) and qualitatively (aromatic profile) similar to those obtained using conventional HD over 120 min. In addition, SFME generates less waste and less solvent, consumes less energy, and provides a higher yield for a shorter extraction time, which is advantageous for the extraction of the T. mastichina essential oil compared to SD. The antioxidant and antimicrobial activities of the T. mastichina essential oil obtained from either SFME or conventional extraction methods (SD or HD) showed a similar pattern. Large-scale experiments using this SFME procedure showed a potential industrial application.
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A Study on the Phytotoxic Potential of the Seasoning Herb Marjoram ( Origanum majorana L.) Leaves. Molecules 2021; 26:molecules26113356. [PMID: 34199500 PMCID: PMC8199622 DOI: 10.3390/molecules26113356] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 01/18/2023] Open
Abstract
In the search of new alternatives for weed control, spices appear as an option with great potential. They are rich in bioactive natural products and edible, which might minimize toxicity hazard. Marjoram (Origanum majorana L.) is an aromatic herb that has been widely employed as a seasoning herb in Mediterranean countries. Although marjoram boasts a plethora of therapeutic properties (painkiller, antibiotic, treatment for intestinal disorders, etc.), the potential for its extracts for weed control is still to be more thoroughly explored. In order to determine their phytotoxic potential, marjoram leaves were subjected to different bioguided extraction processes, using water, ethyl acetate, acetone or methanol. The most active extract (acetone) was sequentially fractionated to identify its most active compounds. This fractionation led to the isolation and identification of 25 compounds that were classified as monoterpenes, diterpenes or flavonoids. Among them, a new compound named majoradiol and several compounds are described in marjoram for the first time. The phytotoxicity of the major compounds to etiolated wheat coleoptiles was compared against that of the commercial herbicide (Logran®), with similar or higher activity in some cases. These results confirm the extraordinary potential of the extracts from this edible plant to develop safer and more environmentally friendly herbicides.
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De Mastro G, El Mahdi J, Ruta C. Bioherbicidal Potential of the Essential Oils from Mediterranean Lamiaceae for Weed Control in Organic Farming. PLANTS 2021; 10:plants10040818. [PMID: 33924193 PMCID: PMC8074603 DOI: 10.3390/plants10040818] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 01/11/2023]
Abstract
In all farming systems, weeds are the most expensive pest to manage, accounting for 30% of potential losses. In organic farming, the problem may be further amplified by restrictions on herbicides, thus making weeds the main problem faced by organic farmers in the field. In this sense, much research is focusing on the allelopathic potential of plants as an ecological weed control tool. Many plant species can release allelopathic compounds with high phytotoxicity that can be used in weed control. Species belonging to the Lamiaceae family have been studied widely for this purpose, and their essential oils (EOs) appear to be promising bioherbicides. However, there are still many challenges for their development. Considering these aspects, a review of the bioherbicidal effect of EOs from Mediterranean Lamiaceae could help identify the most effective ones and the challenges for their actual development.
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Affiliation(s)
- Giuseppe De Mastro
- Department of Agricultural and Environmental Science, Università degli Studi di Bari Aldo Moro, Via Amendola 165/a, 70125 Bari, Italy;
- Correspondence: ; Tel.: +39-33-5876-2824
| | - Jihane El Mahdi
- CIHEAM Centre International des Hautes Études en Agriculture Méditerranéenne, IAM Mediterranean Agronomic Institute of Bari, Via Ceglie 9, 70010 Valenzano, Italy;
| | - Claudia Ruta
- Department of Agricultural and Environmental Science, Università degli Studi di Bari Aldo Moro, Via Amendola 165/a, 70125 Bari, Italy;
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Thymus mastichina: Composition and Biological Properties with a Focus on Antimicrobial Activity. Pharmaceuticals (Basel) 2020; 13:ph13120479. [PMID: 33352776 PMCID: PMC7766293 DOI: 10.3390/ph13120479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 12/26/2022] Open
Abstract
Thymus mastichina has the appearance of a semishrub and can be found in jungles and rocky lands of the Iberian Peninsula. This work aimed to review and gather available scientific information on the composition and biological properties of T. mastichina. The main constituents of T. mastichina essential oil are 1,8-cineole (or eucalyptol) and linalool, while the extracts are characterized by the presence of flavonoids, phenolic acids, and terpenes. The essential oil and extracts of T. mastichina have demonstrated a wide diversity of biological activities. They showed antibacterial activity against several bacteria such as Escherichia coli, Proteus mirabilis, Salmonella subsp., methicillin-resistant and methicillin-sensitive Staphylococcus aureus, Listeria monocytogenes EGD, Bacillus cereus, and Pseudomonas, among others, and antifungal activity against Candida spp. and Fusarium spp. Additionally, it has antioxidant activity, which has been evaluated through different methods. Furthermore, other activities have also been studied, such as anticancer, antiviral, insecticidal, repellent, anti-Alzheimer, and anti-inflammatory activity. In conclusion, considering the biological activities reported for the essential oil and extracts of T. mastichina, its potential as a preservative agent could be explored to be used in the food, cosmetic, or pharmaceutical industries.
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Kraśniewska K, Kosakowska O, Pobiega K, Gniewosz M. The Influence of Two-Component Mixtures from Spanish Origanum Oil with Spanish Marjoram Oil or Coriander Oil on Antilisterial Activity and Sensory Quality of a Fresh Cut Vegetable Mixture. Foods 2020; 9:foods9121740. [PMID: 33255876 PMCID: PMC7760045 DOI: 10.3390/foods9121740] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/19/2020] [Accepted: 11/25/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to evaluate two-component mixtures of essential oils (EOs) in sub-inhibitory concentrations for antilisterial protection of minimally processed vegetables. Spanish origanum oil (SOO), Spanish marjoram oil (SMO) and coriander oil (CO) and a mixture of fresh leafy vegetables with red beet were used. The chemical compositions of selected EOs were analyzed by gas chromatography. Carvacrol was the major component of SOO. The dominant active component of SMO was 1,8-cineole, while the major constituent in CO was linalool. The study shows that essential oils in combination, namely SOO + SMO and SOO + CO in a ¼ MIC + ¼ MIC (Minimal Inhibitory Concentration), have a synergistic effect against L. monocytogenes. The reduction of L. monocytogenes in vegetable mixtures treated by EOs in these selected combinations after 24 h of storage was approximately equal to the limit of detection. Furthermore, it was found that the vegetable mixture treated with SOO + SMO had the highest-rated sensorial quality and could therefore meet consumer expectations.
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Affiliation(s)
- Karolina Kraśniewska
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences−SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland; (K.P.); (M.G.)
- Correspondence: ; Tel.: +48-22-593-76-69
| | - Olga Kosakowska
- Department of Vegetable and Medicinal Plants, Institute of Horticultural Sciences, Warsaw University of Life Sciences–SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland;
| | - Katarzyna Pobiega
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences−SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland; (K.P.); (M.G.)
| | - Małgorzata Gniewosz
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences−SGGW (WULS-SGGW), Nowoursynowska 159, 02-776 Warsaw, Poland; (K.P.); (M.G.)
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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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Gruľová D, Caputo L, Elshafie HS, Baranová B, De Martino L, Sedlák V, Gogaľová Z, Poráčová J, Camele I, De Feo V. Thymol Chemotype Origanum vulgare L. Essential Oil as a Potential Selective Bio-Based Herbicide on Monocot Plant Species. Molecules 2020; 25:molecules25030595. [PMID: 32013272 PMCID: PMC7037002 DOI: 10.3390/molecules25030595] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 12/25/2022] Open
Abstract
Searching for new bio-based herbicides is crucial for decreasing chemical pollution, protecting the environment, and sustaining biodiversity. Origanum vulgare is considered a promising source of essential oil with herbicidal effect. The mode of action is not known. The present study focused on (1) comparison of phytotoxic activity of Origanum vulgare EO on monocot (Triticum aestivum and Hordeum vulgare) and dicot species (Lepidium sativum and Sinapis alba); (2) and evaluating other antimicrobial biological activities against phytopatogen bacteria (Clavibacter michiganensis, Pseudomonas syringae pv. phaseolicola, Pseudomonas savastanoi, and Xanthomonas campestris); antifungal activity against Monilinia fructicola, Aspergillus niger, Penicillium expansum, and Botrytis cinerea; cytotoxic activity and antioxidant activity. According to the GC/MS analyses, the EO belongs to the thymol chemotype O. vulgare with its high content of thymol (76%). Germination of all four species was not influenced by EO. The phytotoxic effect was statistically significant in the monocot species, while in the dicot species the opposite was observed-a stimulation effect, which was also statistically significant. Strong biological activity of O. vulgare EO was noted on all phytopatogen bacteria and fungi in the highest dose. Cytotoxic activity showed an IC50 = 50.5 μg/mL. Antioxidant activity showed an IC50 = 106.6 μg/mL after 45 min experimental time. Based on the presented results, it is possible to conclude that thymol chemotype O. vulgare essential oil could be potentially used as a herbicide with selective effects on monocot plant species.
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Affiliation(s)
- Daniela Gruľová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia;
- Correspondence: ; Tel.: +421-948-030-412
| | - Lucia Caputo
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Hazem S. Elshafie
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (I.C.)
| | - Beáta Baranová
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia;
| | - Laura De Martino
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
| | - Vincent Sedlák
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia; (V.S.); (Z.G.); (J.P.)
| | - Zuzana Gogaľová
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia; (V.S.); (Z.G.); (J.P.)
| | - Janka Poráčová
- Department of Biology, Faculty of Humanities and Natural Sciences, University of Prešov, 17. Novembra 1, 08001 Prešov, Slovakia; (V.S.); (Z.G.); (J.P.)
| | - Ippolito Camele
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Viale dell’Ateneo Lucano 10, 85100 Potenza, Italy; (H.S.E.); (I.C.)
| | - Vincenzo De Feo
- Department of Pharmacy, University of Salerno, I-84084 Fisciano, Italy; (L.C.); (L.D.M.); (V.D.F.)
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Control of Erigeron bonariensis with Thymbra capitata, Mentha piperita, Eucalyptus camaldulensis, and Santolina chamaecyparissus Essential Oils. Molecules 2020; 25:molecules25030562. [PMID: 32012931 PMCID: PMC7037304 DOI: 10.3390/molecules25030562] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/20/2020] [Accepted: 01/24/2020] [Indexed: 02/01/2023] Open
Abstract
In the search of sustainable and environmentally friendly methods for weed control, there is increasing interest in essential oils (EOs) as an approach to reduce synthetic herbicide use. The phytotoxicity of Thymbra capitata, Mentha piperita, Eucalyptus camaldulensis, and Santolina chamaecyparissus EOs against the noxious weed Erigeron bonariensis were evaluated in pre- and post-emergence assays in greenhouse conditions. The EOs were applied at 2, 4, and 8 µL/mL, with Fitoil used as emulsifier. In post-emergence, two ways of application were tested, irrigation and spraying. Several germination parameters (germination %, mean germination time, and synchrony of the germination process) were evaluated in pre-emergence tests, and the phytotoxicity level was assessed in post-emergence. In pre-emergence, all EOs significantly reduced seed germination as compared to the controls, ranking: T. capitata > E. camaldulensis > S. chamaecyparissus > M. piperita. The effectiveness of all EOs varied with the tested dose, always following the rank 2 μL < 4 μL < 8 μL, with T. capitata EO showing full effectiveness even at the lowest dose. In post-emergence, T. capitata was the most effective EO, inducing a rather complete inhibition of plantlet growth at the highest two doses. These EOs demonstrated to have good potential for the formulation of natural herbicides.
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Bio-Herbicidal Effects of Oregano and Rosemary Essential Oils on Chamomile (Matricaria chamomilla L.) Crop in Organic Farming System. AGRONOMY-BASEL 2019. [DOI: 10.3390/agronomy9090475] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chamomile (Matricaria chamomilla L.) is a well-known medicinal plant species in which the products requested from the market are those that are derived from the organic system. The study was conducted to assess the allelopathic effects, as natural herbicides, of two essential oils extracted from oregano (Origanum vulgare L.) and rosemary (Rosmarimum officinalis L.), with the objective of exploring the possibility of their utilization for future weed management. A field experiment was conducted over two seasons, when the infestation of 15 different weed species was detected. Each essential oil was applied at two different concentrations (50% diluted and undiluted), three times during the chamomile crop under an organic farm system. The results demonstrated that the germination of different weed species was affected differently by the type of essential oils and especially by their concentrations. The undiluted oils inhibited most of the germination of several weed species, highlighting a significantly higher percentage of Weed Control Efficiency (WCE) and suggesting the potential to be used as bio-herbicides. Bioherbicidal weed control methods could offer an advantage with respect to hand weeding, particularly from an economic point of view.
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Ibáñez MD, Blázquez MA. Phytotoxic Effects of Commercial Eucalyptus citriodora, Lavandula angustifolia, and Pinus sylvestris Essential Oils on Weeds, Crops, and Invasive Species. Molecules 2019; 24:molecules24152847. [PMID: 31387317 PMCID: PMC6695791 DOI: 10.3390/molecules24152847] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 01/26/2023] Open
Abstract
Background: essential oils are well known for their pharmacological effectiveness as well as their repellent, insecticide, and herbicide activities. The emergence of resistant weeds, due to the overuse of synthetic herbicides, makes it necessary to find natural alternatives for weed control. The aim of this study was to evaluate the phytotoxic effects of Eucalyptus citriodora, Lavandulaangustifolia, and Pinus sylvestris, three common commercial essential oils, on weeds (Portulaca oleracea, Lolium multiflorum, and Echinochloa crus-galli), food crops (tomato and cucumber), and the invasive species Nicotiana glauca. Methods: to determine herbicidal effects, essential oils were tested at different concentrations (0.125–1 µL/mL). The index of germination and seedling length data were recorded over 14 days. Results: the in vitro assays showed that L. angustifolia with linalool (38.7 ± 0.1%), 1,8-cineole (26.5 ± 0.1%), and camphor (14.2 ± 0.1%) as the main compounds showed the most phytotoxic effects affecting seed germination in weeds and tomato, and the aforementioned invasive species. L. multiflorum was the most sensitive weed, particularly to lavender essential oil, which decreased the growth of its hypocotyl and radicle by 87.8% and 76.7%, respectively, at a dose of 1 µL/mL. Cucumber was the most resistant food crop, with no significant reduction observed in seed germination and hypocotyl growth with E. citriodora and L. angustifolia essential oils. Conclusions: lavender essential oil represents a promising candidate for the development of effective and safe herbicides in the management of L. multiflorum affecting cucumber crops.
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Affiliation(s)
- María Dolores Ibáñez
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València. Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, València, Spain
| | - María Amparo Blázquez
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València. Avda. Vicent Andrés Estellés s/n, 46100 Burjassot, València, Spain.
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Ibáñez MD, Blázquez MA. Ginger and Turmeric Essential Oils for Weed Control and Food Crop Protection. PLANTS 2019; 8:plants8030059. [PMID: 30857365 PMCID: PMC6473496 DOI: 10.3390/plants8030059] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 12/25/2022]
Abstract
Ginger and turmeric are two food ingredients that are in high demand due to their flavor and positive effects on health. The biological properties of these spices are closely related to the aromatic compounds they contain. The chemical compositions of their essential oils and their in vitro phytotoxic activity against weeds (Portulaca oleracea, Lolium multiflorum, Echinochloa crus-galli, Cortaderia selloana, and Nicotiana glauca) and food crops (tomato, cucumber, and rice) were studied. Forty-one compounds, accounting for a relative peak area of 87.7% and 94.6% of turmeric and ginger essential oils, respectively, were identified by Gas Chromatography–Mass Spectrometry analysis. Ginger essential oil with α-zingiberene (24.9 ± 0.8%), β-sesquiphelladrene (11.7 ± 0.3%), ar-curcumene (10.7 ± 0.2%), and β-bisabolene (10.5 ± 0.3%) as the main compounds significantly inhibited the seed germination of P. oleracea, L. multiflorum, and C. selloana at the highest dose (1 µL/mL) assayed, as well as the hypocotyl and radicle growth of the weeds. Turmeric essential oil with ar-turmerone (38.7 ± 0.8%), β-turmerone (18.6 ± 0.6%), and α-turmerone (14.2 ± 0.9%) as principal components significantly inhibited the seed germination of C. selloana and hypocotyl and radicle growth of weeds (the latter in particular) at the highest dose, whereas it did not affect either the seed germination or seedling growth of the food crops. Turmeric essential oil can be an effective post-emergent bioherbicide against the tested weeds without phytotoxicity to crops.
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Affiliation(s)
- María Dolores Ibáñez
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Avd. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain.
| | - María Amparo Blázquez
- Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Avd. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain.
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Phytotoxicity of Essential Oils on Selected Weeds: Potential Hazard on Food Crops. PLANTS 2018; 7:plants7040079. [PMID: 30248993 PMCID: PMC6313844 DOI: 10.3390/plants7040079] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 12/13/2022]
Abstract
The chemical composition of winter savory, peppermint, and anise essential oils, and in vitro and in vivo phytotoxic activity against weeds (Portulaca oleracea, Lolium multiflorum, and Echinochloa crus-galli) and food crops (maize, rice, and tomato), have been studied. Sixty-four compounds accounting for between 97.67–99.66% of the total essential oils were identified by Gas Chromatography-Mass Spectrometry analysis. Winter savory with carvacrol (43.34%) and thymol (23.20%) as the main compounds produced a total inhibitory effect against the seed germination of tested weed. Menthol (48.23%), menthone (23.33%), and iso-menthone (16.33%) from peppermint only showed total seed germination inhibition on L. multiflorum, whereas no significant effects were observed with trans-anethole (99.46%) from anise at all concentrations (0.125–1 µL/mL). Low doses of peppermint essential oil could be used as a sustainable alternative to synthetic agrochemicals to control L. multiflorum. The results corroborate that in vivo assays with a commercial emulsifiable concentrate need higher doses of the essential oils to reproduce previous in vitro trials. The higher in vivo phytotoxicity of winter savory essential oil constitutes an eco-friendly and less pernicious alternative to weed control. It is possible to achieve a greater in vivo phytotoxicity if less active essential oil like peppermint is included with other active excipients.
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