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Goyal A, Dubey N, Verma A, Agrawal A. Erucic Acid: A Possible Therapeutic Agent for Neurodegenerative Diseases. Curr Mol Med 2024; 24:419-427. [PMID: 37165502 DOI: 10.2174/1566524023666230509123536] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 05/12/2023]
Abstract
Neurodegenerative disorders are among the most common life-threatening disorders among the elderly worldwide and are marked by neuronal death in the brain and spinal cord. Several studies have demonstrated the beneficial role of dietary fatty acids in different brain disorders. This is due to their neurotrophic, antioxidant, and anti-inflammatory properties. Furthermore, extensive evidence shows that an unbalanced intake of certain dietary fatty acids increases the risk of neuropsychiatric diseases. Several research has been done on erucic acid, an ingestible omega-9 fatty acid that is found in Lorenzo's oil. Erucic acid was previously thought to be a natural toxin because of its negative effects on heart muscle function and hepatic steatosis, but it has been discovered that erucic acid is regularly consumed in Asian countries through the consumption of cruciferous vegetables like mustard and rapeseed oil with no evidence of cardiac harm. Erucic acid can also be transformed into nervonic acid, a crucial element of myelin. Therefore, erucic acid may have remyelinating effects, which may be crucial for treating different demyelinating conditions. Also, erucic acid exerts antioxidant and anti-inflammatory effects, suggesting its possible therapeutic role in different neurodegenerative disorders. Considering the fruitful effects of this compound, this article reviews the probable role of erucic acid as a pharmacological agent for treating and managing different neurodegenerative disorders.
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Affiliation(s)
- Ahsas Goyal
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, India
| | - Nandini Dubey
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, India
| | - Aanchal Verma
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, India
| | - Anant Agrawal
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, India
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Plaszkó T, Szűcs Z, Vasas G, Gonda S. Interactions of fungi with non-isothiocyanate products of the plant glucosinolate pathway: A review on product formation, antifungal activity, mode of action and biotransformation. PHYTOCHEMISTRY 2022; 200:113245. [PMID: 35623473 DOI: 10.1016/j.phytochem.2022.113245] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 05/05/2023]
Abstract
The glucosinolate pathway, which is present in the order Brassicales, is one of the most researched defensive natural product biosynthesis pathways. Its core molecules, the glucosinolates are broken down upon pathogen challenge or tissue damage to yield an array of natural products that may help plants defend against the stressor. Though the most widely known glucosinolate decomposition products are the antimicrobial isothiocyanates, there is a wide range of other volatile and non-volatile natural products that arise from this biosynthetic pathway. This review summarizes our current knowledge on the interaction of these much less examined, non-isothiocyanate products with fungi. It deals with compounds including (1) glucosinolates and their biosynthesis precursors; (2) glucosinolate-derived nitriles (e.g. derivatives of 1H-indole-3-acetonitrile), thiocyanates, epithionitriles and oxazolidine-2-thiones; (3) putative isothiocyanate downstream products such as raphanusamic acid, 1H-indole-3-methanol (= indole-3-carbinol) and its oligomers, 1H-indol-3-ylmethanamine and ascorbigen; (4) 1H-indole-3-acetonitrile downstream products such as 1H-indole-3-carbaldehyde (indole-3-carboxaldehyde), 1H-indole-3-carboxylic acid and their derivatives; and (5) indole phytoalexins including brassinin, cyclobrassinin and brassilexin. Herein, a literature review on the following aspects is provided: their direct antifungal activity and the proposed mechanisms of antifungal action, increased biosynthesis after fungal challenge, as well as data on their biotransformation/detoxification by fungi, including but not limited to fungal myrosinase activity.
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Affiliation(s)
- Tamás Plaszkó
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032, Debrecen, Hungary; Doctoral School of Pharmaceutical Sciences, University of Debrecen, 4032, Debrecen, Hungary.
| | - Zsolt Szűcs
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032, Debrecen, Hungary; Healthcare Industry Institute, University of Debrecen, 4032, Debrecen, Hungary.
| | - Gábor Vasas
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032, Debrecen, Hungary.
| | - Sándor Gonda
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032, Debrecen, Hungary.
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3
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Wang P, Xiong X, Zhang X, Wu G, Liu F. A Review of Erucic Acid Production in Brassicaceae Oilseeds: Progress and Prospects for the Genetic Engineering of High and Low-Erucic Acid Rapeseeds ( Brassica napus). FRONTIERS IN PLANT SCIENCE 2022; 13:899076. [PMID: 35645989 PMCID: PMC9131074 DOI: 10.3389/fpls.2022.899076] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/21/2022] [Indexed: 06/02/2023]
Abstract
Erucic acid (C22:1, ω-9, EA) is a very-long-chain monounsaturated fatty acid (FA) that is an important oleochemical product with a wide range of uses in metallurgy, machinery, rubber, the chemical industry, and other fields because of its hydrophobicity and water resistance. EA is not easily digested and absorbed in the human body, and high-EA rapeseed (HEAR) oil often contains glucosinolates. Both glucosinolates and EA are detrimental to health and can lead to disease, which has resulted in strict guidelines by regulatory bodies on maximum EA contents in oils. Increasingly, researchers have attempted to enhance the EA content in Brassicaceae oilseeds to serve industrial applications while conversely reducing the EA content to ensure food safety. For the production of both LEAR and HEAR, biotechnology is likely to play a fundamental role. Elucidating the metabolic pathways of EA can help inform the improvement of Brassicaceae oilseeds through transgenic technology. In this paper, we introduce the industrial applications of HEAR oil and health benefits of low-EA rapeseed (LEAR) oil first, following which we review the biosynthetic pathways of EA, introduce the EA resources from plants, and focus on research related to the genetic engineering of EA in Brassicaceae oilseeds. In addition, the effects of the environment on EA production are addressed, and the safe cultivation of HEAR and LEAR is discussed. This paper supports further research into improving FAs in Brassicaceae oilseeds through transgenic technologies and molecular breeding techniques, thereby advancing the commercialization of transgenic products for better application in various fields.
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Affiliation(s)
- Pandi Wang
- Key Laboratory of Biology and Genetics Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Xiaojuan Xiong
- Key Laboratory of Biology and Genetics Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Xiaobo Zhang
- State Key Laboratory of Crop Breeding Technology Innovation and Integration, Life Science and Technology Center, China National Seed Group Co., Ltd., Wuhan, China
| | - Gang Wu
- Key Laboratory of Biology and Genetics Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Fang Liu
- Key Laboratory of Biology and Genetics Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
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Agerbirk N, Pattison DI, Mandáková T, Lysak MA, Montaut S, Staerk D. Ancient Biosyntheses in an Oil Crop: Glucosinolate Profiles in Limnanthes alba and Its Relatives (Limnanthaceae, Brassicales). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1134-1147. [PMID: 35061395 DOI: 10.1021/acs.jafc.1c07299] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The glucosinolate (GSL) profiles of four Limnanthaceae species, including the oil crop Limnanthes alba (meadowfoam), were investigated by an ultrahigh-performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UHPLC-QToF-MS/MS) analysis of desulfoGSLs after desulfation of native GSLs, supplemented by NMR of desulfated 2-hydroxy-2-methylpropylGSL and 3-methoxybenzylGSL. Leaves, roots, and seeds were investigated, providing an overview of biosynthetic capabilities in the genera Floerkea and Limnanthes. Methoxyl groups on benzylGSLs were in meta but not para positions; two 3,5-disubstituted benzylGSLs are tentatively proposed. 2-Hydroxy-2-methylpropylGSL was accompanied by an isomer that was not a previously reported GSL. The combined GSL profile of the family included GSLs derived from valine, leucine, isoleucine, phenylalanine, and tyrosine, and possibly methionine and tryptophan. Substituted indole GSLs and GSLs derived from chain-elongated amino acids or alanine were searched for but not detected. Hypothetic glycosides of GSLs were detected at low levels. Based on biochemical interpretation, we suggest biosynthetic schemes and gene families (CYP79C, GSOH) relevant for tailoring GSL profiles in Limnanthes crops.
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Affiliation(s)
- Niels Agerbirk
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - David I Pattison
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - Terezie Mandáková
- CEITEC─Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Martin A Lysak
- CEITEC─Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Sabine Montaut
- Biomolecular Sciences Programme, School of Natural Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, Ontario P3E 2C6, Canada
| | - Dan Staerk
- Department of Drug Design and Pharmacology, University of Copenhagen, Jagtvej 162, 2100 Copenhagen, Denmark
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Plaszkó T, Szűcs Z, Vasas G, Gonda S. Effects of Glucosinolate-Derived Isothiocyanates on Fungi: A Comprehensive Review on Direct Effects, Mechanisms, Structure-Activity Relationship Data and Possible Agricultural Applications. J Fungi (Basel) 2021; 7:539. [PMID: 34356918 PMCID: PMC8305656 DOI: 10.3390/jof7070539] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/24/2021] [Accepted: 07/03/2021] [Indexed: 12/29/2022] Open
Abstract
Plants heavily rely on chemical defense systems against a variety of stressors. The glucosinolates in the Brassicaceae and some allies are the core molecules of one of the most researched such pathways. These natural products are enzymatically converted into isothiocyanates (ITCs) and occasionally other defensive volatile organic constituents (VOCs) upon fungal challenge or tissue disruption to protect the host against the stressor. The current review provides a comprehensive insight on the effects of the isothiocyanates on fungi, including, but not limited to mycorrhizal fungi and pathogens of Brassicaceae. In the review, our current knowledge on the following topics are summarized: direct antifungal activity and the proposed mechanisms of antifungal action, QSAR (quantitative structure-activity relationships), synergistic activity of ITCs with other agents, effects of ITCs on soil microbial composition and allelopathic activity. A detailed insight into the possible applications is also provided: the literature of biofumigation studies, inhibition of post-harvest pathogenesis and protection of various products including grains and fruits is also reviewed herein.
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Affiliation(s)
- Tamás Plaszkó
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary; (T.P.); (Z.S.); (G.V.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Zsolt Szűcs
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary; (T.P.); (Z.S.); (G.V.)
- Healthcare Industry Institute, University of Debrecen, 4032 Debrecen, Hungary
| | - Gábor Vasas
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary; (T.P.); (Z.S.); (G.V.)
| | - Sándor Gonda
- Department of Botany, Division of Pharmacognosy, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary; (T.P.); (Z.S.); (G.V.)
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Maina S, Misinzo G, Bakari G, Kim HY. Human, Animal and Plant Health Benefits of Glucosinolates and Strategies for Enhanced Bioactivity: A Systematic Review. Molecules 2020; 25:E3682. [PMID: 32806771 PMCID: PMC7464879 DOI: 10.3390/molecules25163682] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 12/14/2022] Open
Abstract
Glucosinolates (GSs) are common anionic plant secondary metabolites in the order Brassicales. Together with glucosinolate hydrolysis products (GSHPs), they have recently gained much attention due to their biological activities and mechanisms of action. We review herein the health benefits of GSs/GSHPs, approaches to improve the plant contents, their bioavailability and bioactivity. In this review, only literature published between 2010 and March 2020 was retrieved from various scientific databases. Findings indicate that these compounds (natural, pure, synthetic, and derivatives) play an important role in human/animal health (disease therapy and prevention), plant health (defense chemicals, biofumigants/biocides), and food industries (preservatives). Overall, much interest is focused on in vitro studies as anti-cancer and antimicrobial agents. GS/GSHP levels improvement in plants utilizes mostly biotic/abiotic stresses and short periods of phytohormone application. Their availability and bioactivity are directly proportional to their contents at the source, which is affected by methods of food preparation, processing, and extraction. This review concludes that, to a greater extent, there is a need to explore and improve GS-rich sources, which should be emphasized to obtain natural bioactive compounds/active ingredients that can be included among synthetic and commercial products for use in maintaining and promoting health. Furthermore, the development of advanced research on compounds pharmacokinetics, their molecular mode of action, genetics based on biosynthesis, their uses in promoting the health of living organisms is highlighted.
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Affiliation(s)
- Sylvia Maina
- Smart Farm Research Center, Korea Institute of Science and Technology (KIST), Gangneung, Gangwon 25451, Korea;
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro 25523, Tanzania; (G.M.); (G.B.)
- SACIDS Africa Centre of Excellence for Infectious Diseases, Sokoine University of Agriculture, Morogoro 25523, Tanzania
| | - Gerald Misinzo
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro 25523, Tanzania; (G.M.); (G.B.)
- SACIDS Africa Centre of Excellence for Infectious Diseases, Sokoine University of Agriculture, Morogoro 25523, Tanzania
| | - Gaymary Bakari
- College of Veterinary Medicine and Biomedical Sciences, Sokoine University of Agriculture, Morogoro 25523, Tanzania; (G.M.); (G.B.)
| | - Ho-Youn Kim
- Smart Farm Research Center, Korea Institute of Science and Technology (KIST), Gangneung, Gangwon 25451, Korea;
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Macías FA, Mejías FJ, Molinillo JM. Recent advances in allelopathy for weed control: from knowledge to applications. PEST MANAGEMENT SCIENCE 2019; 75:2413-2436. [PMID: 30684299 DOI: 10.1002/ps.5355] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/10/2019] [Accepted: 01/19/2019] [Indexed: 05/27/2023]
Abstract
Allelopathy is the biological phenomenon of chemical interactions between living organisms in the ecosystem, and must be taken into account in addressing pest and weed problems in future sustainable agriculture. Allelopathy is a multidisciplinary science, but in some cases, aspects of its chemistry are overlooked, despite the need for a deep knowledge of the chemical structural characteristics of allelochemicals to facilitate the design of new herbicides. This review is focused on the most important advances in allelopathy, paying particular attention to the design and development of phenolic compounds, terpenoids and alkaloids as herbicides. The isolation of allelochemicals is mainly addressed, but other aspects such as the analysis and activities of derivatives or analogs are also covered. Furthermore, the use of allelopathy in the fight against parasitic plants is included. The past 12 years have been a prolific period for publications on allelopathy. This critical review discusses future research areas in this field and the state of the art is analyzed from the chemist's perspective. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Francisco A Macías
- Allelopathy Group, Department of Organic Chemistry, School of Sciences, Institute of Biomolecules (INBIO), University of Cadiz, Cádiz, Spain
| | - Francisco Jr Mejías
- Allelopathy Group, Department of Organic Chemistry, School of Sciences, Institute of Biomolecules (INBIO), University of Cadiz, Cádiz, Spain
| | - José Mg Molinillo
- Allelopathy Group, Department of Organic Chemistry, School of Sciences, Institute of Biomolecules (INBIO), University of Cadiz, Cádiz, Spain
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Liang JY, Liu Y, Zhang XX, Zhang LJ, Chen Y, Li Y, Zhang H, Kong WB, Du SS. Antagonistic activity of essential oils and their main constituents extracted from Ajania fruticulosa and A. potaninii against Ditylenchus destructor. NEMATOLOGY 2018. [DOI: 10.1163/15685411-00003185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Summary
The antagonistic activities of essential oils of Ajania potaninii and A. fruticulosa against Ditylenchus destructor were determined by the liquid soak method in 96-well microplates. The main constituents of A. potaninii essential oil were 1,8-cineole (22.19%), (+)-camphor (12.84%), (−)-verbenol (13.84%) and borneol (12.67%). The results showed that the essential oils of A. fruticulosa (EC50 = 0.17 mg ml−1) and A. potaninii (EC50 = 0.27 mg ml−1) have antagonistic activity against D. destructor. The results also showed that 1,8-cineole (EC50 = 0.49 mg ml−1), myrtenol (EC50 = 0.40 mg ml−1) (A. fruticulosa) and (−)-verbenol (EC50 = 1.09 mg ml−1) (A. potaninii) have antagonistic activity. 1,8-Cineole is a key element affecting the antagonistic activity that was found in both essential oils. Several main constituents found in the essential oils had antagonistic effects against D. destructor. These results provide the basis for future development and utilisation of a substance to control D. destructor.
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Affiliation(s)
- Jun-Yu Liang
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Yan Liu
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Xin-Xin Zhang
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Li-Juan Zhang
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Yan Chen
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Yuan Li
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Hui Zhang
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Wei-Bao Kong
- 1College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, P.R. China
| | - Shu-Shan Du
- 2Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Beijing Normal University, Beijing 100875, P.R. China
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Slabaugh MB, Cooper LD, Kishore VK, Knapp SJ, Kling JG. Genes affecting novel seed constituents in Limnanthes alba Benth: transcriptome analysis of developing embryos and a new genetic map of meadowfoam. PeerJ 2015; 3:e915. [PMID: 26038713 PMCID: PMC4451031 DOI: 10.7717/peerj.915] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 04/06/2015] [Indexed: 01/19/2023] Open
Abstract
The seed oil of meadowfoam, a new crop in the Limnanthaceae family, is highly enriched in very long chain fatty acids that are desaturated at the Δ5 position. The unusual oil is desirable for cosmetics and innovative industrial applications and the seed meal remaining after oil extraction contains glucolimnanthin, a methoxylated benzylglucosinolate whose degradation products are herbicidal and anti-microbial. Here we describe EST analysis of the developing seed transcriptome that identified major genes involved in biosynthesis and assembly of the seed oil and in glucosinolate metabolic pathways. mRNAs encoding acyl-CoA Δ5 desaturase were notably abundant. The library was searched for simple sequence repeats (SSRs) and single nucleotide polymorphisms (SNPs). Fifty-four new SSR markers and eight candidate gene markers were developed and combined with previously developed SSRs to construct a new genetic map for Limnanthes alba. Mapped genes in the lipid biosynthetic pathway encode 3-ketoacyl-CoA synthase (KCS), Δ5 desaturase (Δ5DS), lysophosphatidylacyl-acyl transferase (LPAT), and acyl-CoA diacylglycerol acyl transferase (DGAT). Mapped genes in glucosinolate biosynthetic and degradation pathways encode CYP79A, myrosinase (TGG), and epithiospecifier modifier protein (ESM). The resources developed in this study will further the domestication and improvement of meadowfoam as an oilseed crop.
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Affiliation(s)
- Mary B Slabaugh
- Department of Crop and Soil Science, Oregon State University , Corvallis, OR , United States of America
| | - Laurel D Cooper
- Department of Crop and Soil Science, Oregon State University , Corvallis, OR , United States of America ; Department of Botany and Plant Pathology, Oregon State University , Corvallis OR , United States of America
| | | | - Steven J Knapp
- Department of Plant Sciences, University of California-Davis , Davis, CA , United States of America
| | - Jennifer G Kling
- Department of Crop and Soil Science, Oregon State University , Corvallis, OR , United States of America
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Erşahin YŞ, Weiland JE, Zasada IA, Reed RL, Stevens JF. Identifying Rates of Meadowfoam (Limnanthes alba) Seed Meal Needed for Suppression of Meloidogyne hapla and Pythium irregulare in Soil. PLANT DISEASE 2014; 98:1253-1260. [PMID: 30699611 DOI: 10.1094/pdis-09-13-0967-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Meadowfoam (Limnanthes alba) is a commercial oilseed annual crop grown in Oregon. After extracting oil from seed, the remaining seed meal is rich in the secondary plant metabolite glucolimnanthin, which can be converted into pesticidal compounds such as 3-methoxybenzyl isothiocyanate (ITC) and 3-methoxyphenylacetonitrile (nitrile) in the presence of the enzyme myrosinase. In previous studies, we demonstrated that ITC and nitrile, produced by mixing freshly ground meadowfoam seed with meadowfoam seed meal, are toxic to the plant-parasitic nematode Meloidogyne hapla and the plant pathogen Pythium irregulare. In this study, we evaluated factors that might influence the implementation of meadowfoam seed meal into agricultural production systems for soilborne pathogen and nematode control. Rate-finding experiments demonstrated that a minimum 1.0% seed/seed meal formulation (wt/wt) was necessary to achieve nematode and pathogen suppression; seed meal alone was insufficient for complete control of M. hapla and stimulated the growth of P. irregulare. When this 1.0% seed/seed meal formulation was used, a greater soil amendment rate was required to cause 100% mortality of P. irregulare (1.0% wt/wt) than for M. hapla (0.5% wt/wt). In phytotoxicity experiments, soil amended with the 1.0% seed/seed meal formulation was consistently phytotoxic to wheat, cucumber, and tomato. However, phytotoxic effects were mitigated by a delayed planting into the amended soil. A final assay to monitor concentrations of ITC and nitrile in conjunction with assessing M. hapla and P. irregulare mortality was conducted over a 6-day period in soils amended at 0.5 and 1.0% (wt/wt) with the 1.0% seed/seed meal formulation. The response was rapid, with 100% mortality of both organisms within 2 h after exposure to amended soil. Concentrations of nitrile remained relatively constant over the 6-day period (approximately 0.017 and 0.032 mg/ml at 0.5 and 1.0% amendment rates, respectively), whereas ITC production increased rapidly and peaked 12 to 24 h after amendment (0.083 and 0.171 mg/ml at 0.5 and 1.0% amendment rates, respectively) before returning to near undetectable levels.
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Affiliation(s)
| | - Jerry E Weiland
- United States Department of Agriculture-Agricultural Research Services, Horticultural Crops Research Laboratory, Corvallis, OR 97330
| | - Inga A Zasada
- United States Department of Agriculture-Agricultural Research Services, Horticultural Crops Research Laboratory, Corvallis, OR 97330
| | - Ralph L Reed
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis 97331
| | - J Fred Stevens
- Department of Pharmaceutical Sciences, Oregon State University, Corvallis 97331
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11
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Intanon S, Reed RL, Stevens JF, Hulting AG, Mallory-Smith CA. Identification and phytotoxicity of a new glucosinolate breakdown product from Meadowfoam (Limnanthes alba) seed meal. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:7423-7429. [PMID: 24998843 DOI: 10.1021/jf5018687] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Meadowfoam (Limnanthes alba Hartw. ex Benth.) is an oilseed crop grown in the Willamette Valley of Oregon. Meadowfoam seed meal (MSM), a byproduct after oil extraction, contains 2-4% glucosinolate (glucolimnanthin). Activated MSM, produced by adding freshly ground myrosinase-active meadowfoam seeds to MSM, facilitates myrosinase-mediated formation of glucosinolate-derived degradation products with herbicidal activity. In the activated MSM, glucolimnanthin was converted into 3-methoxybenzyl isothiocyanate ("isothiocyanate") within 24 h and was degraded by day three. 3-Methoxyphenylacetonitrile ("nitrile") persisted for at least 6 days. Methoxyphenylacetic acid (MPAA), a previously unknown metabolite of glucolimnanthin, appeared at day three. Its identity was confirmed by LC-UV and high resolution LC-MS/MS comparisons with a standard of MPAA. Isothiocyanate inhibited lettuce germination 8.5- and 14.4-fold more effectively than MPAA and nitrile, respectively. Activated MSM inhibited lettuce germination by 58% and growth by 72% compared with the control. Results of the study suggest that MSM has potential uses as a pre-emergence bioherbicide.
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Affiliation(s)
- Suphannika Intanon
- Department of Crop and Soil Science, Oregon State University , 109 Crop Science Building, Corvallis, Oregon 97331, United States
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12
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Ntalli NG, Caboni P. Botanical nematicides: a review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:9929-9940. [PMID: 22973877 DOI: 10.1021/jf303107j] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Despite the uselfuness of nematicidal compounds in agricultural practices, some serious concerns are raised today about their excessive use leading to enhancement of biodegradation mechanisms in soil expressed as lack of efficacy under field conditions and resistance development. Moreover, the phase-out of methyl bromide has led to the need for a valid alternative to organophosporous and carbamate compounds, such us fosthiazate, fenamiphos, oxamyl, and aldicarb. In the past years, intregated pest management strategies have been practised worldwide to maximize crop production while maintaining and contributing to agriculture sustainability. Biopesticides and specifically bionematicides constitute a desirable component of pest management technology and practices. Particularly, in the frame of our ongoing research on natural nematicides of botanical origin, we have reviewed the international bibliography for candidate nematicidal compounds. We report herein the nematicidal activity of plant metabolites on the basis of their chemical characteristics and structure.
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Affiliation(s)
- Nikoletta G Ntalli
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly , Fytokou Street, 38446 Nea Ionia-Volos, Magnesia, Greece
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