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Hu Y, Li P, Yao X, He Y, Tang H, Zhao Q, Lu L. Zinc Treatment of Tea Plants Improves the Synthesis of Trihydroxylated Catechins via Regulation of the Zinc-Sensitive Protein CsHIPP3. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14887-14898. [PMID: 38886187 DOI: 10.1021/acs.jafc.4c02114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
The tea plant (Camellia sinensis [L.] O. Kussntze) is a global economic crop. Zinc treatment of tea plants can enhance catechin biosynthesis. However, the underlying molecular mechanism behind catechin formation through zinc regulation remains unclear. This study identified a zinc-responsive protein, C. sinensis heavy metal-associated isoprenylated plant protein 3 (CsHIPP3), from zinc-treated tea seedlings. CsHIPP3 expression was positively correlated with trihydroxylated catechin (TRIC) content. CsF3'5'H1 is a crucial regulator of the TRIC synthesis pathway. The interaction between CsHIPP3 and CsF3'5'H1 was assessed using bimolecular fluorescence complementation, firefly luciferase complementation imaging, and pulldown experiments. CsHIPP3 knockdown using virus-induced gene silencing technology decreased the content of each component of TRICs. Compared with the control, the relative catechin content was reduced by 40.12-55.39%. Co-overexpression of CsHIPP3 and CsF3'5'H1 significantly elevated the TRIC content in tea leaves and calli. Moreover, the TRIC content in transient co-overexpression leaves was 1.44-fold higher than that of the control group, and tea callus was 50.83% higher in transient co-overexpression than in the wild type. Thus, zinc-regulated TRIC synthesis in a zinc-rich environment was mediated by binding CsHIPP3 with CsF3'5'H1 to promote TRIC synthesis and accumulation.
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Affiliation(s)
- Yilan Hu
- College of Life Sciences, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, China
| | - Pingping Li
- College of Tea Sciences, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
| | - Xinzhuan Yao
- College of Tea Sciences, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
| | - Yumei He
- College of Tea Sciences, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
| | - Hu Tang
- College of Tea Sciences, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
| | - Qi Zhao
- College of Life Sciences, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, China
| | - Litang Lu
- College of Life Sciences, The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang 550025, China
- College of Tea Sciences, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
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Hamidian M, Salehi A, Naghiha R, Dehnavi MM, Castangia I, Mirfathi MN. The comparative perspective of phytochemistry and biological properties of the Apiaceae family plants. Sci Rep 2023; 13:12390. [PMID: 37524766 PMCID: PMC10390506 DOI: 10.1038/s41598-023-39254-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 07/22/2023] [Indexed: 08/02/2023] Open
Abstract
Despite the availability of numerous reports on the discovery of medicinal plant compounds and their properties, one may encounter contradictory results released by these reports at the level of plant families and even within species. To establish an accurate perspective of the Apiaceae family, this study examined the fruit essential oil and methanolic extract of wild and common species of this family. According to the measurement of the antioxidant property in the methanolic extract of the fruits using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, Ferula gummosa, Pimpinella anisum and Cuminum cyminum have high power in inhibiting free radicals. However, Bunium persicum had the strongest DPPH radicals inhibitory potential among all essential oils. The results of antimicrobial tests and their classification analysis showed that C. cyminum and B. persicum fruit essential oil with a high amount of cuminaldehyde had the most antibacterial properties. At the same time, the antifungal properties of H. persicum essential oil (rich in aliphatic ester) were stronger than those of the all the studied plants. Also, the essential oils of F. gummosa and Kelussia odoratissima had favourable antimicrobial properties compared to other studied plants. The investigation of the bacterial structure by scanning electron microscope confirmed the effect of the applied essential oils dose and their antibacterial potential. In general, for the first time, this paper determined the biological values of the fruit essential oil of some wild plants, such as K. odoratissima and H. persicum. Besides, in vitro examination and the mathematical models provided a suitable classification, which makes a comprehensive view in terms of the properties of the Apiaceae family.
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Affiliation(s)
- Mohammad Hamidian
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran
| | - Amin Salehi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran.
| | - Reza Naghiha
- Department of Animal Sciences, Faculty of Agriculture, Yasouj University, Yasouj, Iran
| | - Mohsen Movahhedi Dehnavi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran
| | - Ines Castangia
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
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Bampidis V, Azimonti G, Bastos MDL, Christensen H, Durjava M, Kouba M, López‐Alonso M, López Puente S, Marcon F, Mayo B, Pechová A, Petkova M, Ramos F, Sanz Y, Villa RE, Woutersen R, Brantom P, Chesson A, Westendorf J, Manini P, Pizzo F, Dusemund B. Safety and efficacy of a feed additive consisting of a tincture derived from the fruit of Pimpinella anisum L. (anise tincture) for use in all animal species (FEFANA asbl). EFSA J 2023; 21:e07962. [PMID: 37077302 PMCID: PMC10107385 DOI: 10.2903/j.efsa.2023.7962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023] Open
Abstract
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the fruit of Pimpinella anisum L. (anise tincture) when used as a sensory additive in feed and water for drinking for all animal species. The product is a ■■■■■ solution, with a dry matter content of approximately 1.6%. The product contained on average 0.0414% polyphenols (of which 0.0144% were flavonoids), 0.0009% anisaldehyde, 0.0003% anethole. Estragole (≤ 1.2 mg/kg) was detected in the additive. The estimated maximum content of furocoumarins was 8.2 mg/kg. The use of the anise tincture in feed was not expected to increase the exposure to furocoumarins of those target species that are already fed citrus by-products to a relevant extent (< 10%). For dogs, cats and ornamental fish not normally exposed to citrus by-products, no conclusion could be drawn. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the anise tincture was safe at the maximum proposed use levels in complete feed of 200 mg/kg for horses and 50 mg/kg for poultry, pigs, ruminants, rabbits and salmonids and other fin fish. Anise tincture should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. Since anise tincture may contain furocoumarins, they may cause phototoxicity. When handling the additive, exposure of unprotected users to estragole may occur. Therefore, to reduce the risk, the exposure of the users should be minimised. The use of the anise tincture as a flavour in animal feed was not expected to pose a risk for the environment. Since the fruit of P. anisum and its preparations were recognised to flavour food and their function in feed would be the same, no demonstration of efficacy was necessary.
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Soussi M, El Yaagoubi W, Nekhla H, El Hanafi L, Squalli W, Benjelloun M, El Ghadraoui L. A Multidimensional Review of Pimpinella anisum and Recommendation for Future Research to Face Adverse Climatic Conditions. CHEMISTRY AFRICA 2023. [PMCID: PMC10035495 DOI: 10.1007/s42250-023-00633-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
Anise, or Pimpinella anisum, has a long history of usage in traditional and alternative medicine, as well as in the pharmaceutical sector. The species is native to Southwest Asia, the Middle East, and the Mediterranean region. The current studies have revealed that wild and cultivated P. anisum are rich in bioactive compounds, such as phenols, tannins, carotenoids, and fatty acids. Different parts of P. anisum plant are used treatment of diseases, the treatment of pathogens for antiviral, antibacterial, and antifungal purposes, and cosmetics. In this paper, we reviewed the current knowledge on geographical distribution, cultivation, chemical compounds, extraction methods, and agronomic and medicinal uses of Pimpinella anisum. Equally, we suggested guidelines for future research to fill the gap in less investigated issues. Data for this paper was gathered via electronic literature search on Google, Google Scholar, and databases counting, Science Direct, Scopus, Springer, PubMed, and Hindawi, from 1930 to 2022. Analyzed data show that Pimpinella anisum is currently recorded from Portugal on the Atlantic Ocean in the west to China in the East. With new extraction methods, such as Ultrasound-Assisted Extraction, scientists have explored the higher quantities of polyphenols, flavonoids, and antioxidants, and revealed new constituents such as trans-anethole and estragole found in essential oil fruits by gas chromatography-mass spectrometry (GC–MS). These compounds showed significant therapeutic benefits against diseases, pathogens, and cosmetic roles. However, with the current impacts of climate change on natural vegetation cover, more investigations are needed to understand how these affect the geographical distribution, metabolic aspects, and chemical properties of Pimpinella anisum. These are suggested to increase the value of the species and ensure its conservation.
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Affiliation(s)
- Meriem Soussi
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Wissal El Yaagoubi
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Houria Nekhla
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Laila El Hanafi
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Wafae Squalli
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Meryem Benjelloun
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Lahsen El Ghadraoui
- Laboratory of Functional Ecology and Environmental Engineering, Faculty of Sciences and Technology, University of Sidi Mohamed Ben Abdellah, Fez, Morocco
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Wu J, Cao Z, Hassan SSU, Zhang H, Ishaq M, Yu X, Yan S, Xiao X, Jin HZ. Emerging Biopharmaceuticals from Pimpinella Genus. Molecules 2023; 28:molecules28041571. [PMID: 36838559 PMCID: PMC9959726 DOI: 10.3390/molecules28041571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/20/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
Evolved over eons to encode biological assays, plants-derived natural products are still the first dawn of drugs. Most researchers have focused on natural compounds derived from commonly used Pimpinella species, such as P. anisum, P. thellungiana, P. saxifrage, and P. brachycarpa, to investigate their antioxidant, antibacterial, and anti-inflammatory properties. Ethnopharmacological studies demonstrated that the genus Pimpinella has the homology characteristics of medicine and food and mainly in the therapy of gastrointestinal dysfunction, respiratory diseases, deworming, and diuresis. The natural product investigation of Pimpinella spp. revealed numerous natural products containing phenylpropanoids, terpenoids, flavonoids, coumarins, sterols, and organic acids. These natural products have the potential to provide future drugs against crucial diseases, such as cancer, hypertension, microbial and insectile infections, and severe inflammations. It is an upcoming field of research to probe a novel and pharmaceutically clinical value on compounds from the genus Pimpinella. In this review, we attempt to summarize the present knowledge on the traditional applications, phytochemistry, and pharmacology of more than twenty-five species of the genus Pimpinella.
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Affiliation(s)
- Jiajia Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhen Cao
- Shanghai Institute of Pharmaceutical Industry Co., Ltd., China State Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Syed Shams ul Hassan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haozhen Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Muhammad Ishaq
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xu Yu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shikai Yan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Institute of Chinese Medicinal Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xue Xiao
- Institute of Chinese Medicinal Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Correspondence: (X.X.); (H.-Z.J.); Tel./Fax: +86-21-34205989 (H.J.)
| | - Hui-Zi Jin
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Correspondence: (X.X.); (H.-Z.J.); Tel./Fax: +86-21-34205989 (H.J.)
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Shrief AI, Abdel-Hamid AAM, Moustafa A, El-Mohandes E. The possible protective role of pimpinella anisum oil versus selenium on aspartame induced changes in rat cerebellar cortex: histological, immunohistochemical and electron microscopic study. Ultrastruct Pathol 2022; 46:497-510. [PMID: 36273246 DOI: 10.1080/01913123.2022.2136809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Aspartame (ASP) is an artificial sweeter. Chronic use of ASP has a harmful effect on cerebellar cortex. Anisum oil and selenium (SE) are antioxidant substances. Therefore, the present study was performed to study the possible protective role of anisum oil versus selenium on aspartame-induced changes in rat cerebellar cortex. Rats were divided into four main groups. Group I (Control group). Group II received 250 mg/kg/day aspartame once daily for 2 months. Group III received 0.5 ml/kg/day anisum 2 h before aspartame administration. Group IV received 0.5 mg/kg/day selenium 2 h before aspartame administration. The administration of Asp for 2 months (group II) resulted in cerebellar histopathological changes in the form of deformed Purkinje and granule cells. Ultrastructurally, Purkinje cells had irregular nuclei, dilated cisternae of rough endoplasmic reticulum, dilated saccules of Golgi apparatus, mitochondria with destroyed cristae. In addition, granule cells appeared shrunken with irregular nuclei. Aspartame and anisum oil treated group (group III) showed partial improvement. Examination of ASP and SE treated group (group IV) showed that cerebellar cortex was nearly similar to control. In conclusion, Anisum oil and selenium could protect against ASP-induced cerebellar damage. The protective effect of selenium is better than anisum oil.
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Affiliation(s)
- Amira I Shrief
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University, Al Mansoura, Egypt
| | - Ahmed A M Abdel-Hamid
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University, Al Mansoura, Egypt
| | - Am Moustafa
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University, Al Mansoura, Egypt
| | - E El-Mohandes
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Mansoura University, Al Mansoura, Egypt
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Liu L, Wang X, Lai Y, He G, Wen S, He H, Li Z, Zhang B, Zhang D. Transcriptomic analysis reveals the significant effects of fertilization on the biosynthesis of sesquiterpenes in Phoebe bournei. Genomics 2022; 114:110375. [PMID: 35490893 DOI: 10.1016/j.ygeno.2022.110375] [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: 01/17/2022] [Revised: 03/02/2022] [Accepted: 04/24/2022] [Indexed: 01/14/2023]
Abstract
Phoebe bournei is a potential medicinal plant. Its essential oils (Eos) are mainly composed of sesquiterpenes that has potential activities of anti-bacteria and anti-tumors. In this study, we evaluated the effects of compost and compound fertilizer on the total amount and main components of Eos in P. bournei, we also studied the molecular mechanism undergoing this process by deep sequencing the genes involved in the biosynthesis of sesquiterpenes. Fertilization enhanced the total amount of main components in Eos from both leaves and twigs. Bicyclogermacrene, the primary sesquiterpene in the leaf EO, was significantly increased under compost treatment, while bicyclogermacrene and δ-cadinene (the second most abundant sesquiterpene) were decreased under compound fertilizer treatment. The two fertilizers had no significant effect on the abundance of the primary (+) - δ-cadinene in the twig EO, but had a positive effect on the second most abundant sesquiterpene copaene. Significant differences were observed in the number of differentially expressed genes (DEGs) with the leaves showing greater number of DEGs as compared to the twigs after compost treatment. Terpenoid backbone biosynthesis (TBB) is a key pathway of sesquiterpenes synthesis. The expression of genes regulating several important enzymes in TBB was altered after fertilization. After the compost treatment, the expression of the leaf DXS gene (ACQ66107.1), being closely related to the sesquiterpene biosynthesis in P. bournei leaves, was decreased. Compost and compound fertilizer altered the expression of the two important branch-point enzymes (FPPS and GGPPS) genes (ART33314.1 and ATT59265.1), which contributed to the changes of the total amount and components of P. bournei sesquiterpenes. This study provides a new insight into the future use of P. bournei for Eos.
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Affiliation(s)
- Li Liu
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xu Wang
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, China
| | - Yong Lai
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Gongxiu He
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Shizhi Wen
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
| | - Hanjie He
- School of Life Sciences and Technology, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhenshan Li
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC 27858, USA.
| | - Dangquan Zhang
- College of Forestry, Henan Agricultural University, Zhengzhou 450002, China.
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da Fonsêca DV, da Silva Maia Bezerra Filho C, Lima TC, de Almeida RN, de Sousa DP. Anticonvulsant Essential Oils and Their Relationship with Oxidative Stress in Epilepsy. Biomolecules 2019; 9:E835. [PMID: 31817682 PMCID: PMC6995584 DOI: 10.3390/biom9120835] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 12/16/2022] Open
Abstract
Epilepsy is a most disabling neurological disorder affecting all age groups. Among the various mechanisms that may result in epilepsy, neuronal hyperexcitability and oxidative injury produced by an excessive formation of free radicals may play a role in the development of this pathology. Therefore, new treatment approaches are needed to address resistant conditions that do not respond fully to current antiepileptic drugs. This paper reviews studies on the anticonvulsant activities of essential oils and their chemical constituents. Data from studies published from January 2011 to December 2018 was selected from the PubMed database for examination. The bioactivity of 19 essential oils and 16 constituents is described. Apiaceae and Lamiaceae were the most promising botanical families due to the largest number of reports about plant species from these families that produce anticonvulsant essential oils. Among the evaluated compounds, β-caryophyllene, borneol, eugenol and nerolidol were the constituents that presented antioxidant properties related to anticonvulsant action. These data show the potential of these natural products as health promoting agents and use against various types of seizure disorders. Their properties on oxidative stress may contribute to the control of this neurological condition. However, further studies on the toxicological profile and mechanism of action of essential oils are needed.
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Affiliation(s)
- Diogo Vilar da Fonsêca
- College of Medicine, Federal University of the Vale do São Francisco, Paulo Afonso, BA, CEP 48607-190, Brazil;
| | | | - Tamires Cardoso Lima
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, SE, CEP 49100-000, Brazil;
| | - Reinaldo Nóbrega de Almeida
- Department of Physiology and Pathology, Universidade Federal da Paraíba, João Pessoa, PB, CEP 58051-970, Brazil;
| | - Damião Pergentino de Sousa
- Department of Pharmaceutical Sciences, Universidade Federal da Paraíba, João Pessoa, PB, CEP 58051-970, Brazil;
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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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