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Poulos NA, Lee CY, Rust MK, Choe DH. Potential use of pinenes to improve localized insecticide injections targeting the western drywood termite (Blattodea: Kalotermitidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2024:toae101. [PMID: 38753642 DOI: 10.1093/jee/toae101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/18/2024]
Abstract
The western drywood termite, Incisitermes minor (Hagen), causes significant economic damage to wood structures in the United States of America, especially California. When infestation is not widespread, localized insecticide injections may be useful for remedial control. However, the extensive gallery structure of drywood termites and their tendency to aggregate at specific parts of the galleries can impact the efficacy of localized insecticide injection. Chemicals that attract termites from a distance may improve the localized insecticide injection by increasing the number of termites contacting the insecticide residues. Two volatile terpenes, α-pinene and β-pinene, commonly found in many coniferous timber trees, were applied to artificial termite galleries to determine if termites were attracted from their original aggregation site. Furthermore, we examined if adding these pinenes would improve the overall efficacy of some insecticide products for drywood termite control. Behavioral assay results showed that the treatment with pinenes increased the likelihood that drywood termites would leave their original aggregation site and contact the treated part of the gallery. When tested with the pesticide products applied in a small area away from the termite aggregation, β-pinene significantly accelerated the time course of mortality for the aqueous fipronil. The efficacy of disodium octaborate tetrahydrate dust was not influenced by the addition of pinenes. Implications for drywood termite management and future research directions are discussed.
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Affiliation(s)
- Nicholas A Poulos
- Department of Entomology, University of California, 900 University Avenue, Riverside, CA 92521, USA
| | - Chow-Yang Lee
- Department of Entomology, University of California, 900 University Avenue, Riverside, CA 92521, USA
| | - Michael K Rust
- Department of Entomology, University of California, 900 University Avenue, Riverside, CA 92521, USA
| | - Dong-Hwan Choe
- Department of Entomology, University of California, 900 University Avenue, Riverside, CA 92521, USA
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Arantes ACS, Ribeiro JCS, Soares DS, Reis AC, Cardoso MDG, Remedio RN. Alpha- and beta-pinene isomers act differently to control Rhipicephalus microplus (Acari: Ixodidae). Parasitol Res 2024; 123:164. [PMID: 38502307 DOI: 10.1007/s00436-024-08187-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/13/2024] [Indexed: 03/21/2024]
Abstract
The cattle tick Rhipicephalus microplus is an ectoparasite of high importance in veterinary medicine and public health. Since synthetic chemicals used to control these ticks can select resistant strains and cause toxic effects in their hosts, there is a need to identify effective substances with fewer adverse effects. For this reason, we investigated the effects of alpha- and beta-pinene, known for their various biological effects, on the mortality and reproductive performance of R. microplus engorged female ticks. The products were diluted in a 2% Tween 80 aqueous solution. The ticks were first weighed and then immersed in the test solutions for five minutes. Then, they were dried with paper towels and fixed dorsoventrally in Petri dishes, totalling five treatment groups for each pinene and a control group treated with the solvent alone. The ticks were monitored daily for mortality, and their eggs were collected and weighed. The larval hatching rate was estimated, and the pre-oviposition and incubation periods were determined. From these data, the following parameters were calculated: egg production index, fertility rate, estimated reproduction rate, percentages of reduction in oviposition and hatching, and product efficacy. Alpha-pinene showed better results at higher concentrations, unlike beta-pinene, which was more effective at lower concentrations. The effectiveness of alpha-pinene was 74% at a concentration of 14.0 μL/mL, while beta-pinene showed 78% efficacy at 2.0 μL/mL. The results indicated for the first time different effects of two isomers in ticks, suggesting that these compounds act on R. microplus females in different ways.
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Affiliation(s)
| | | | - Dásia Silveira Soares
- Department of Veterinary Medicine, Federal University of Lavras, Lavras, Minas Gerais, Brazil
| | - Aline Chaves Reis
- Department of Medicine, Federal University of Lavras, Lavras, Minas Gerais, 37200-900, Brazil
| | | | - Rafael Neodini Remedio
- Department of Medicine, Federal University of Lavras, Lavras, Minas Gerais, 37200-900, Brazil.
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Annaz H, Annaz H, Ajaha A, Bouayad N, El Fakhouri K, Laglaoui A, El Bouhssini M, Sobeh M, Rharrabe K. Chemical profiling and bioactivities of essential oils from Thymus capitatus and Origanum compactum against Tribolium castaneum. Heliyon 2024; 10:e26102. [PMID: 38444480 PMCID: PMC10912041 DOI: 10.1016/j.heliyon.2024.e26102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 03/07/2024] Open
Abstract
The use of essential oils has emerged as an ecofriendly solution for controlling different pests, particularly insects of stored products. Essential oils (EOs) from Thymus capitatus (TC) and Origanum compactum (OC) have received less attention for these bioactivities. Therefore, our study aimed to assess the repellent, antifeedant and contact toxicity of their EOs against a major stored product pest Tribolium castaneum. Besides, GC-MS was also carried out to determine the compounds responsible for the observed bioactivities. Regarding contact toxicity, LC50 values were 0.58 and 0.35 μL/cm2 for TC and OC after 24 h of exposure, respectively. For the repellent effect, the percentage of repellency (PR) was variable across different concentrations and exposure durations. TC exhibited the best PR (98%) after 3 h of exposure at 0.031 μL/cm2. For prolonged repulsive effect (24 h), TC sustained its repulsive efficacy with a PR of 90% at 0.062 μL/cm2 followed by OC with a PR of 88% at 0.125 μL/cm2. As for the antifeedant effect, both EOs had a significant impact on nutritional indexes, especially the feeding deterrent index and relative consumption rate. OC displayed a notable effect, causing 59% of feeding deterrence at 1.92 μL/pellet. These multifaced effects can be explained by the high content of carvacrol in both EOs (OC: 90% and TC: 78%). These multifaced effects demonstrated through different exposure routes and bioassays promote the use of T. capitatus and O. compactum EOs as a sustainable management strategy to control T. castaneum.
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Affiliation(s)
- Houssam Annaz
- Research Team Agricultural and Aquacultural Engineering, FPL, Abdelmalek Essaadi University, Tetouan, Morocco
- Research Team Biotechnology and Biomolecules Engineering, FSTT, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Hassan Annaz
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Ayoub Ajaha
- Research Team Agricultural and Aquacultural Engineering, FPL, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Noureddin Bouayad
- Research Team Biotechnology and Biomolecules Engineering, FSTT, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Karim El Fakhouri
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Amin Laglaoui
- Research Team Biotechnology and Biomolecules Engineering, FSTT, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Mustapha El Bouhssini
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Mansour Sobeh
- AgroBioSciences Program, College of Agriculture and Environmental Sciences, University Mohammed VI Polytechnic, Ben Guerir, Morocco
| | - Kacem Rharrabe
- Research Team Agricultural and Aquacultural Engineering, FPL, Abdelmalek Essaadi University, Tetouan, Morocco
- Research Laboratory Biology, Environment and Sustainable Development, ENS, Abdelmalek Essaadi University, Tetouan, Morocco
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4
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Ferrati M, Spinozzi E, Baldassarri C, Maggi F, Pavela R, Canale A, Petrelli R, Cappellacci L. Efficacy of Mentha aquatica L. Essential Oil (Linalool/Linalool Acetate Chemotype) against Insect Vectors and Agricultural Pests. Pharmaceuticals (Basel) 2023; 16:ph16040633. [PMID: 37111390 PMCID: PMC10143930 DOI: 10.3390/ph16040633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, agrochemical industries have been focused on the development of essential oil (EO)-based biopesticides, which can be considered valuable alternatives to traditional chemical products. The genus Mentha (Lamiaceae) comprises 30 species characterized by a wide range of biological activities, and some of their EOs showed good potential as pesticidal agents. In this regard, the aim of this study was to evaluate the insecticidal activity of the EO obtained from a rare linalool/linalool acetate chemotype of Mentha aquatica L. The EO was found to be highly effective against Culex quinquefasciatus (Say) 2nd instar larvae, Metopolophium dirhodum (Walker) adults, Spodoptera littoralis (Boisduval) 2nd instar larvae, and Tetranychus urticae (Koch) adults, showing lethal concentrations (LC50) or doses (LD50) of 31.5 ± 2.2 µL L-1, 4.9 ± 0.8 mL L-1, 18.5 ± 2.1 µg larvae-1, and 3.3 ± 0.5 mL L-1, respectively. On the contrary, Musca domestica L. adults and 3rd instar larvae of C. quinquefasciatus and S. littoralis were moderately affected by the treatment (LC50 or LD50: 71.4 ± 7.2 µg adult-1, 79.4 ± 5.2 µL L-1, 44.2 ± 5.8 µg larvae-1, respectively). The results obtained in this work demonstrated that various insects and pests could be differently sensible to the same EO and may lead to the exploitation of this plant or its major volatile compounds as novel ingredients of botanical insecticides and pesticides.
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Affiliation(s)
- Marta Ferrati
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
| | - Eleonora Spinozzi
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
| | - Cecilia Baldassarri
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
| | - Filippo Maggi
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
| | - Roman Pavela
- Crop Research Institute, Drnovska 507, 161 06 Prague, Czech Republic
- Department of Plant Protection, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic
| | - Angelo Canale
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Riccardo Petrelli
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
| | - Loredana Cappellacci
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
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Rehman R, Anila, Muzaffar R, Arshad F, Hussain R, Altaf AA. Diversity in Phytochemical Composition and Medicinal Value of Murraya paniculata. Chem Biodivers 2023; 20:e202200396. [PMID: 36529712 DOI: 10.1002/cbdv.202200396] [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: 04/24/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
Murraya paniculata is herbal medicinal plant which is traditionally being used for management of cardiovascular, intestinal and respiratory (air way) disorders. This evergreen plant of tropical regions is a member of Rutaceace family. The goal of this review is to analyze and report the biological activities and active phytochemicals reported from Murraya paniculata (M. paniculata) extracts and essential oil. The data was searched using different search engines and using specific key words including M. paniculata, herbal medicine, phytochemicals, extract, essential oil, pharmacological activities. M. paniculata has been found to have wide range of pharmacological activities, including antinociceptive, antianxiety, antioxidant, antidepressant, antibacterial, analgesic and anti-diabetic properties. A diverse range of phytochemicals, including phenols, coumarins, terpenoids, flavonoids, and alkaloids have been isolated from various portions of the plant and tested for a variety of biological activities. This review will provide more information and stimulate additional research to develop more effective and cost-efficient alternative medicine from this plant.
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Affiliation(s)
- Rafia Rehman
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan.,Department of Chemistry, Faculty of Basic Sciences, University of Agriculture, Faisalabad sub-campus Depalpur, Okara, Okara, 56300
| | - Anila
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
| | - Rabeea Muzaffar
- Department of Biochemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Fahim Arshad
- Department of Botany, University of Okara, Okara, 56300, Pakistan
| | - Riaz Hussain
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry, University of Okara, Okara, 56300, Pakistan.,Department of Chemistry, University of Gujrat, Hafiz Hayat Campus, Gujrat, 50700, Pakistan
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Jaffar S, Lu Y. Toxicity of Some Essential Oils Constituents against Oriental Fruit Fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae). INSECTS 2022; 13:954. [PMID: 36292900 PMCID: PMC9603982 DOI: 10.3390/insects13100954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/10/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The massive use of synthetic pesticides to manage agricultural pests results in environmental pollution and health hazards. The secondary plant metabolites, which are majorly dominated by terpenoids, have the potential to be developed into novel alternatives to synthetic chemicals. Therefore, in our current investigation, six majorly dominated essential oil constituents were evaluated for their toxicity against adults and immature stages of oriental fruit flies, Bactrocera dorsalis, a worldwide fruit pest. The results indicated that carvacrol was the most toxic essential oil constituent (EOC) to adult flies, with LC50 of 19.48 mg/mL via fumigant assay, followed by thujone 75% mortality via ingestion toxicity test against adult fruit flies. Similarly, when larvae were dipped in different concentrations of EOCs, carvacrol appeared as the most toxic EOC with the lowest LC50 (29.12 mg/mL), followed by (-)-alpha-pinene (26.54 mg/mL) and (R)-(+)-limonene (29.12 mg/mL). In the oviposition deterrence tests, no egg was observed on oranges seedlings treated with 5% of each EOC (100% repellency). Regarding the repellency assay, a significantly higher number of flies (77%) were repelled from the Y-tube olfactometer arm containing (-)-alpha-pinene, followed by carvacrol (76%). Our results showed that the selected essential oil constituent has the potential to be developed as an alternative to synthetic pesticides against B. dorsalis. However, further research is required to assess the activities of these EOCs under open-field conditions.
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Sin KR, Kim CJ, Ko SG, Hwang TM, Han YN, Pak YN. Inclusion of thymol into cucurbiturils: density functional theory approach with dispersion correction and natural bond orbital analysis. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01135-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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The Effects of β-Pinene, a Pine Needle Oil Monoterpene, on Adenovirus Type 3. Bull Exp Biol Med 2022; 172:345-351. [PMID: 35001315 DOI: 10.1007/s10517-022-05390-w] [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: 03/12/2021] [Indexed: 10/19/2022]
Abstract
The mechanisms of the inhibitory action of β-pinene, a pine needle oil monoterpene, on human adenovirus type 3 were studied using cytopathic inhibition test, MTT test, atomic force and laser confocal microscopy. β-Pinene inhibited the viruses stronger that the reference antiviral medication ribavirin (p<0.05). Inhibition of viral cytopathic effect (CPE) increased with increasing the concentration of β-pinene, which attested to direct elimination of adenovirus type 3. During viral reproduction phase, β-pinene significantly inhibited proliferation of adenovirus type 3. Typical signs of adenoviral CPE as cell swelling and rounding were less pronounced in comparison with the control (ribavirin treatment). In addition, elevation of β-pinene concentration significantly increased the cell survival rate (p<0.05). Laser confocal microscopy showed that fluorescence intensity in the β-pinene group was significantly lower than in the control group (p<0.01), which was consistent with the results of MTT test, thereby providing additional arguments that β-pinene affects the virus during the absorption phase. Thus, β-pinene directly inactivates adenovirus type 3 and impedes its invasion into the cells, but produces no protective effects on cells. Understanding the mode of action of such monoterpenes as β-pinene is of great importance for the development of new antiviral drugs.
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Influence of Synthetic Flavorings on the Migration Activity of Tribolium confusum and Sitophilus granarius. EKOLÓGIA (BRATISLAVA) 2021. [DOI: 10.2478/eko-2021-0019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Flavorings and volatile biologically active substances, used by humans for various purposes, may potentially have fumigating, repellent, or attractive effects on various species of anthropod storage pests. Tribolium confusum Jacquelin du Val, 1863 (Tenebrionidae) and Sitophilus granarius (Linnaeus, 1758) (Curculionidae) are the two most abundant pests of grain and grain products; the damage they cause to stored products of horticulture is 5–20% of the total yield of grain crops. In the experiment, we video-recorded migratory activity of beetles and evaluated it according to standard time periods (10, 20, 30, 60, and 120 seconds after the start of the experiment). No reliable influence of the 15 tested flavoring substances (benzyl alcohol, benzoic acid, toluene, hydroquinone, phenethyl alcohol, pinene, methylparaben, kojic acid, formic acid, isoamyl alcohol, tartaric acid, glycine, succinic acid, stearic acid, and ethylenediaminetetraacetic acid) on moving activity of Tribolium confusum was found. Exposure to benzyl alcohol brought a reliable decrease in locomotor activity of Sitophilus granarius (it exerted an attractant effect on imagoes as compared with the variant of the experiment without aromatic substances): 6.09 times more imagoes of S. granarius remained at a minimal distance from the aroma source than in the control, 6.07 more while exposed to hydroquinone, 5.50 to phenethyl alcohol, 4.50 to glycine, 3.44 to EDTA, 3.30 to toluene, 3.18 to methylparaben, 2.84 to succinic acid, 2.65 to benzoic acid, and 2.15 more when exposed to formic acid compared with the control variant of the experiment. Other surveyed flavoring substances (benzyl alcohol, pinene, kojic acid, isoamyl alcohol, tartaric acid, and stearic acid) had no significant effect on migratory activity of imagoes of S. granarius. The results allow us to recommend benzyl alcohol, hydroquinone, phenethyl alcohol, and glycine as potential luring substances or components of multicomponent flavoring mixtures during the assessment of the number of S. granarius in grain storage and processing facilities.
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de Souza TJT, Bordignon SAL, Apel MA, Henriques AT. Volatile constituents of Eupatorieae (Asteraceae). Compositional multivariate analysis of volatile oils from Southern Brazilian species in the subtribe Disynaphiinae. PHYTOCHEMISTRY 2021; 186:112734. [PMID: 33756237 DOI: 10.1016/j.phytochem.2021.112734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 03/01/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
Volatile oils (VOs) obtained from the aerial parts of species from the Disynaphiinae subtribe (genera Acanthostyles, Campovassouria, Disynaphia, Grazielia, Raulinoreitzia, and Symphyopappus) of Eupatorieae (Asteraceae) collected in Rio Grande do Sul, southern Brazil, were characterized using GC-MS. The yield of VOs relative to fresh material ranged from 0.2 to 1.7% between the Disynaphiinae subtribe samples (Acanthostyles buniifolius, Campovassouria cruciata, Disynaphia ericoides, D. ligulifolia, D. spathulata, Symphyopappus casarettoi, S. reticulatus, S. itatiayensis, Grazielia gaudichaudieana, G. intermedia, G. nummularia, G. serrata, Raulinoreitzia crenulata, and R. tremula). The VOs in this subtribe were mainly composed of terpene compounds. Compositional multivariate analysis demonstrated clustering between the samples of Grazielia and Raulinoreitzia on one side, which contain relatively higher proportions of monoterpenes, and Disynaphia and Campovassouria, which contain more oxygenated sesquiterpenes. The samples of Symphyopappus and Acanthostyles, which contain more sesquiterpene hydrocarbons, were located between these two main groups. Multivariate analysis accounting for the recent proposals of subtribal recircumscription of Eupatorieae was also performed. The odd chemistry of S. itatiayensis was in accordance with the recent attempts to exclude it from the genus Symphyopappus.
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Affiliation(s)
- Tiago J T de Souza
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, 90610-000, Porto Alegre, Brazil.
| | - Sérgio A L Bordignon
- Programa de Pós-Graduação em Avaliação de Impactos Ambientais, Centro Universitário La Salle, Canoas, Brazil
| | - Miriam A Apel
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, 90610-000, Porto Alegre, Brazil
| | - Amelia T Henriques
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, 90610-000, Porto Alegre, Brazil
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Park BB, An JY, Park SU. Recent studies on pinene and its biological and pharmacological activities. EXCLI JOURNAL 2021; 20:812-818. [PMID: 34177404 PMCID: PMC8222632 DOI: 10.17179/excli2021-3714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/15/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Byung Bae Park
- Department of Environment and Forest Resources, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Ji Young An
- Department of Environment and Forest Resources, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Sang Un Park
- Department of Crop Science and Department of Smart Agriculture Systems, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
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12
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Terpenoids, Cannabimimetic Ligands, beyond the Cannabis Plant. Molecules 2020; 25:molecules25071567. [PMID: 32235333 PMCID: PMC7181184 DOI: 10.3390/molecules25071567] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 02/06/2023] Open
Abstract
Medicinal use of Cannabis sativa L. has an extensive history and it was essential in the discovery of phytocannabinoids, including the Cannabis major psychoactive compound—Δ9-tetrahydrocannabinol (Δ9-THC)—as well as the G-protein-coupled cannabinoid receptors (CBR), named cannabinoid receptor type-1 (CB1R) and cannabinoid receptor type-2 (CB2R), both part of the now known endocannabinoid system (ECS). Cannabinoids is a vast term that defines several compounds that have been characterized in three categories: (i) endogenous, (ii) synthetic, and (iii) phytocannabinoids, and are able to modulate the CBR and ECS. Particularly, phytocannabinoids are natural terpenoids or phenolic compounds derived from Cannabis sativa. However, these terpenoids and phenolic compounds can also be derived from other plants (non-cannabinoids) and still induce cannabinoid-like properties. Cannabimimetic ligands, beyond the Cannabis plant, can act as CBR agonists or antagonists, or ECS enzyme inhibitors, besides being able of playing a role in immune-mediated inflammatory and infectious diseases, neuroinflammatory, neurological, and neurodegenerative diseases, as well as in cancer, and autoimmunity by itself. In this review, we summarize and critically highlight past, present, and future progress on the understanding of the role of cannabinoid-like molecules, mainly terpenes, as prospective therapeutics for different pathological conditions.
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Alcala-Orozco M, Caballero-Gallardo K, Olivero-Verbel J. Intergenerational effects of coal dust on Tribolium castaneum, Herbst. ENVIRONMENTAL RESEARCH 2020; 182:109055. [PMID: 32069741 DOI: 10.1016/j.envres.2019.109055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 11/27/2019] [Accepted: 12/16/2019] [Indexed: 06/10/2023]
Abstract
Coal dust is a primary air contaminant from coal mining operations that produces harmful health effects. However, it is unclear to what extent its detrimental properties would impact future generations, and whether alterations in the progenies might be concentration-dependent. The aim of this study was to determine the intergenerational effects of chronic exposure to coal dust on the red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), at three life stages. Groups of fifty adult insects were exposed during 30 days at different concentrations of coal dust mixed with ground oats as food substrate (0, 0.25, 0.5, 1.0 and 2.0% weight/weight), both with a particle size <38 μm. The LC50 for F0 insects was 1.07%, whereas for larvae and adults from F1, values were 0.53 and 0.89%, respectively. Pathological findings assessed at F1 revealed a coal dust concentration-dependent frequency of several morphological abnormalities, including larvae without antenna or extremities, lack of T1, T2, T3 legs, loss of urogomphi, and the presence of abnormal protuberances. It was found that a considerable number of F1 larvae derived from parental beetles did not achieve a complete conversion into the next growth stage. Pupae with undeveloped eyes and adults with malformed elytra, as well as necrosis, were recurrently observed at high concentrations. Finally, adults exposed to 1% coal dust overexpressed genes related to oxidative stress (nuclear factor erythroid 2-related factor 2, Nrf2) and synaptic transmission (GABA-gated ion channel, Grd). In short, coal dust particles induced intergenerational effects on T. castaneum, highlighting the need to further study the impact of this airborne pollutant on wildlife and human populations.
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Affiliation(s)
- Maria Alcala-Orozco
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia
| | - Karina Caballero-Gallardo
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, 130015, Colombia.
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Huff RM, Pitts RJ. An odorant receptor from Anopheles gambiae that demonstrates enantioselectivity to the plant volatile, linalool. PLoS One 2019; 14:e0225637. [PMID: 31751420 PMCID: PMC6872167 DOI: 10.1371/journal.pone.0225637] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/29/2019] [Indexed: 02/07/2023] Open
Abstract
Insects express chemical receptors within sensory neurons that are activated by specific cues in the environment, thereby influencing the acquisition of critical resources. A significant gap in our current understanding of insect chemical ecology is defining the molecular mechanisms that underlie sensitivity to plant-emitted volatiles. Linalool is a commonly-occurring monoterpene that has various effects on insect behavior, either acting as an attractant or a repellent, and existing in nature as one of two possible stereoisomers, (R)-(-)-linalool and (S)-(+)-linalool. In this study, we have used a cell-based functional assay to identify linalool and structurally-related compounds as ligands of Odorant receptor 29, a labellum-expressed receptor in the malaria vector mosquito, Anopheles gambiae (AgamOr29). While (R)-(-)-linalool activates AgamOr29, a mixture of the (R) and (S) stereoisomers activates the receptor with higher potency, implying enantiomeric selectivity. Orthologs of Or29 are present in the genomes of Anophelines within the Cellia subgenus. The conservation of this receptor across Anopheline lineages suggests that this ecologically important compound might serve as an attraction cue for nectar-seeking mosquitoes. Moreover, the characterization of a mosquito terpene receptor could serve as a foundation for future ligand-receptor studies of plant volatiles and for the discovery of compounds that can be integrated into push-pull vector control strategies.
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Affiliation(s)
- Robert Mark Huff
- Department of Biology, Baylor University, Waco, Texas, United States of America
| | - R. Jason Pitts
- Department of Biology, Baylor University, Waco, Texas, United States of America
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15
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Radice M, Tasambay A, Pérez A, Diéguez-Santana K, Sacchetti G, Buso P, Buzzi R, Vertuani S, Manfredini S, Baldisserotto A. Ethnopharmacology, phytochemistry and pharmacology of the genus Hedyosmum (Chlorantaceae): A review. JOURNAL OF ETHNOPHARMACOLOGY 2019; 244:111932. [PMID: 31128149 DOI: 10.1016/j.jep.2019.111932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The genus Hedyosmum (family: Chloranthaceae) represents an interesting source of natural active compounds, and the 45 species of this genus are widespread in Central and South America and to a lesser extent Southeast Asia (southern China and western Malaysia). Several species are traditionally used in folk medicine. However, the data made available in recent years have not been organized and compared. AIM OF THIS REVIEW The present study is a critical assessment of the state-of-the-art concerning the traditional uses, the phytochemistry and the pharmacology of species belonging to the genus Hedyosmum to suggest further research strategies and to facilitate the exploitation of the therapeutic potential of Hedyosmum species for the treatment of human disorders. MATERIALS AND METHODS The present review consists of a systematic overview of scientific literature concerning the genus Hedyosmum published between 1965 and 2018. Moreover, an older text, dated from 1843, concerning the traditional uses of H. bonplandianum Kunth has also been considered. Several databases (Francis & Taylor, Google Scholar, PubMed, SciELO, SciFinder, Springer, Wiley, and The Plant List Database) have been used to perform this work. RESULTS Sixteen species of the genus Hedyosmum have been mentioned as traditional remedies, and a large number of ethnomedicinal uses, including for the treatment of pain, depression, migraine, stomach-ache and ovary diseases, have been reported. Five species have been used as flavouring agents, tea substitutes or foods. Sesterterpenes, sesquiterpene lactones, monoterpenes, hydroxycinnamic acid derivatives, flavonoids, and neolignans have been reported as the most important compounds in these species. Studies concerning their biological activities have shown that members of the Hedyosmum genus possesses promising biological properties, such as analgesic, antinociceptive, antidepressant, anxiolytic, sedative, and hypnotic effects. Preliminary studies concerning the antibacterial, antioxidant, antiplasmodial, and antifungal activities of these plants as well as their cytotoxic activities against different tumour cell lines have been reported. Some active compounds from the Hedyosmum genus have been used as starting points for the innovative and bioinspired development of synthetic molecules. A critical assessment of these papers has been performed, and some conceptual and methodological problems have been identified regarding the materials and methods and the experimental design used in these studies, including a lack of ethnopharmacological research. CONCLUSIONS The present review partially confirms the basis for some of the traditional uses of Hedyosmum species (mainly H. brasiliense) through preclinical studies that demonstrated their antinociceptive and neuroprotective effects. Due to promising preliminary results, further studies should be conducted on 13-hydroxy-8,9-dehydroshizukanolide and podoandin. Moreover, several essential oils (EOs) from this genus have been preliminarily investigated, and the cytotoxic and antibacterial activities of H. brasiliense and H. sprucei EOs certainly deserve further investigation. From the promising findings of the present analysis, we can affirm that this genus deserves further research from ethnopharmacological and toxicological perspectives.
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Affiliation(s)
- Matteo Radice
- Universidad Estatal Amazónica, Km 2 ½ Via Puyo-Tena, Puyo, Ecuador
| | | | - Amaury Pérez
- Universidad Estatal Amazónica, Km 2 ½ Via Puyo-Tena, Puyo, Ecuador
| | - Karel Diéguez-Santana
- Universidad Estatal Amazónica, Km 2 ½ Via Puyo-Tena, Puyo, Ecuador; IKIAM - Universidad Regional Amazónica, km 7 Vía Muyuna, Tena, Napo, Ecuador
| | - Gianni Sacchetti
- University of Ferrara, Department of Life Science and Biotechnology, Master in Cosmetic Science and Technology, Via Fossato di Mortara 17-19, 44121, Ferrara, Italy
| | - Piergiacomo Buso
- University of Ferrara, Department of Life Science and Biotechnology, Master in Cosmetic Science and Technology, Via Fossato di Mortara 17-19, 44121, Ferrara, Italy
| | - Raissa Buzzi
- University of Ferrara, Department of Life Science and Biotechnology, Master in Cosmetic Science and Technology, Via Fossato di Mortara 17-19, 44121, Ferrara, Italy
| | - Silvia Vertuani
- University of Ferrara, Department of Life Science and Biotechnology, Master in Cosmetic Science and Technology, Via Fossato di Mortara 17-19, 44121, Ferrara, Italy.
| | - Stefano Manfredini
- University of Ferrara, Department of Life Science and Biotechnology, Master in Cosmetic Science and Technology, Via Fossato di Mortara 17-19, 44121, Ferrara, Italy.
| | - Anna Baldisserotto
- University of Ferrara, Department of Life Science and Biotechnology, Master in Cosmetic Science and Technology, Via Fossato di Mortara 17-19, 44121, Ferrara, Italy.
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16
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Zhong ZF, Zhou XJ, Lin JB, Liu XJ, Shao J, Zhong BL, Peng T. Effects of leaf colorness, pigment contents and allelochemicals on the orientation of the Asian citrus psyllid among four Rutaceae host plants. BMC PLANT BIOLOGY 2019; 19:254. [PMID: 31195973 PMCID: PMC6567656 DOI: 10.1186/s12870-019-1818-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Asian citrus psyllid (ACP) is the primary vector responsible for the transmission of the phloem-limited bacteria Candidatus Liberibacter spp., associated with huanglongbing (HLB), which causes great loss to the citrus industry. Although the roles of leaf color and volatile compounds in the orientation of ACP have been proven, the quantification of color and allelochemicals in the host plant are kept unclear, especially in wild citrus germplasms. RESULTS Chongyi wild mandarin significantly attracted more ACP than wild Hong Kong kumquat, 'Gannan zao' navel orange and orange jasmine did in the four-choice and olfactometer assays. The color parameters of the tender leaves from Chongyi wild mandarin and 'Gannan zao' were similar. The yellow color in both of them was less saturated than that of the other two plants species, but Chongyi wild mandarin had significant lower carotenoid content (P < 0.05). Notably metabolic profiling differences were observed among the healthy tender shoots from the four tested plants via UPLC-QQQ-MS and GC-MS analyses. Comparing with the other three plant species, 66 and 50 metabolites with significantly different contents in Chongyi wild mandarin were selected as UPLC-identified and GC-identified metabolites of interest (P < 0.05), respectively. Flavonoids accounted for a large group of secondary metabolites of interest, which may function as stimulants or repellents of ACP. Higher content of salicylic acid o-hexoside and lower content of (+)-jasmonic acid in Chongyi wild mandarin may lead to higher amount of methyl salicylate (an ACP attractant) and lower amount of trans-ocimene (an attractant to herbivores' natural enemies) as well as the suppression of JA-mediated wounding response. This kind of synergistic or antagonistic effect among the metabolites differentially accumulated in Chongyi wild mandarin made it a more attractive host plant to ACP. CONCLUSIONS Less saturated yellow color, high amount of attractants, low amount of repellents and insensitivity of JA-mediated wounding response are the four possible reasons why Chongyi wild mandarin attracted more ACP. This work may shed light on the olfactory and visual response of ACP to wild citrus germplasm hosts, and suggest the feasibility of developing ACP attractants or repellents patterned on potential metabolites.
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Affiliation(s)
- Zao-Fa Zhong
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Xiao-Juan Zhou
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Jin-Bei Lin
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Xin-Jun Liu
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Jia Shao
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Ba-Lian Zhong
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Ting Peng
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
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Pajaro-Castro N, Caballero-Gallardo K, Olivero-Verbel J. Toxicity and expression of oxidative stress genes in Tribolium castaneum induced by toluene, xylene, and thinner. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2018; 82:28-36. [PMID: 30582425 DOI: 10.1080/15287394.2018.1546245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Thinner is a solvent that contains toluene, xylene, and other substances. The aim of this study was to examine the toxicity of thinner, xylene, and toluene on adult red flour beetles, Tribolium castaneum (Herbst), as well as the effects of thinner and toluene on gene expression. The major compounds identified in the thinner with peak area >2% were p-xylene (6%), toluene (4%), 2,4-dimethylheptane (3%), methylcyclohexane (2.75%), 2-methylheptane (2%), cyclohexanone (2.6%), and nonane (2.1%). Insects were exposed to solvents at 0-240 µl/L air for 4-48 hr. Animals that survived after a 4 hr exposure to 80 µl/L air were employed to determine mRNA expression using real-time PCR. Xylene was highly toxic, and the majority of the beetles did not survive 4 hr exposure at 40 µl/L air. The lethal concentration 50 (LC50) values for toluene, xylene and thinner at 48 hr exposure were 97.7, <40 and 99.8 µl/L air, respectively. Thinner and toluene induced lethargy and sluggish movement in treated insects, while with xylene these effects were not observed. Glutathione-S-transferase (Gst) gene expression increased after thinner and toluene exposure. Superoxide dismutase (SOD) gene expression rose after toluene exposure. These results suggest that T. castaneum provides an alternative model for the study of toxicological effects of volatile aromatic compounds.
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Affiliation(s)
- Nerlis Pajaro-Castro
- a Environmental and Computational Chemistry Group. School of Pharmaceutical Sciences , Zaragocilla Campus. University of Cartagena , Cartagena, Bolivar , Colombia
- b Department of Medicine , Medical and Pharmaceutical Sciences Group. School of Health Sciences. University of Sucre , Sincelejo, Sucre , Colombia
| | - Karina Caballero-Gallardo
- a Environmental and Computational Chemistry Group. School of Pharmaceutical Sciences , Zaragocilla Campus. University of Cartagena , Cartagena, Bolivar , Colombia
| | - Jesus Olivero-Verbel
- a Environmental and Computational Chemistry Group. School of Pharmaceutical Sciences , Zaragocilla Campus. University of Cartagena , Cartagena, Bolivar , Colombia
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Li Y, Yan SS, Wang JJ, Li LY, Zhang J, Wang K, Liang JY. Insecticidal Activities and Chemical Composition of the Essential Oils of Ajania nitida and Ajania nematoloba from China. J Oleo Sci 2018; 67:1571-1577. [PMID: 30429442 DOI: 10.5650/jos.ess18102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this work, we investigated insecticidal and repellent activities of the essential oils extracted from Ajania nitida and Ajania nematoloba against Tribolium castaneum and Lasioderma serricorne adults. The components of essential oils were analyzed by GC-MS. The main components of A. nitida oil were camphor (20.76%), thujone (18.64%), eucalyptol (13.42%), borneol (8.32%) and those of A. nematoloba oil were β-pinene (34.72%), eucalyptol (24.97%) and verbenol (20.39%). The results showed that the two essential oils possessed insecticidal and repellent activities against two species of insects. A. nitida oil possessed contact and fumigant toxicity against T. castaneum (LD50 = 30.10 µg/adult and LC50 = 21.07 mg/L air) and L.serricorne (LD50 = 17.51 µg/adult and LC50 = 11.23 mg/L air). A.nematoloba oil showed contact and fumigant toxicity against T. castaneum (LD50 = 102.29µg/adult and LC50 = 69.45 mg/L air) and contact toxicity against L.serricorne (LD50 = 53.43 µg/adult), but no obvious fumigant effect was observed against L.serricorne. Both of essential oils possessed strong repellent activity against T. castaneum and certain repellent activity against L.serricorne. Especially, A. nematoloba oil showed the same level percentage repellency as DEET(the positve control) against T. castaneum. The results indicated that the essential oils of A. nitida and A. nematoloba had the potential to be developed as natural insecticides and repellents for the control of T. castaneum and L.serricorne.
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Affiliation(s)
- Yuan Li
- College of Life Science, Northwest Normal University
| | - Shan-Shan Yan
- College of Life Science, Northwest Normal University
| | | | - Ling-Yan Li
- College of Life Science, Northwest Normal University
| | - Ji Zhang
- College of Life Science, Northwest Normal University
| | - Kui Wang
- College of Life Science, Northwest Normal University
| | - Jun-Yu Liang
- College of Life Science, Northwest Normal University
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Wang Y, Guo S, Cao J, Pang X, Zhang Z, Chen Z, Zhou Y, Geng Z, Sang Y, Du S. Toxic and Repellent Effects of Volatile Phenylpropenes from Asarum heterotropoides on Lasioderma serricorne and Liposcelis bostrychophila. Molecules 2018; 23:E2131. [PMID: 30149520 PMCID: PMC6225349 DOI: 10.3390/molecules23092131] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 08/22/2018] [Accepted: 08/22/2018] [Indexed: 11/16/2022] Open
Abstract
Toxic and repellent effects of the essential oil from Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag. were evaluated against Lasioderma serricorne and Liposcelis bostrychophila. The essential oils (EOs) from roots (ER) and leaves (EL) of A. heterotropoides were obtained separately by hydrodistillation and characterized by gas chromatography-mass spectrometry (GC-MS) analysis. Major components of ER and EL included methyleugenol, safrole, and 3,5-dimethoxytoluene. Both ER and EL of A. heterotropoides showed certain toxicity and repellency against L. serricorne and L. bostrychophila. 3,5-Dimethoxytoluene, methyleugenol, and safrole were strongly toxic via fumigation to L. serricorne (LC50 = 4.99, 10.82, and 18.93 mg/L air, respectively). Safrole and 3,5-dimethoxytoluene possessed significant fumigant toxicity against L. bostrychophila (LC50 = 0.83 and 0.91 mg/L air, respectively). The three compounds all exhibited potent contact toxicity against the two insect species. Here, the EL of A. heterotropoides was confirmed to have certain toxicity and repellency against stored product insects, providing a novel idea for the comprehensive use of plant resources.
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Affiliation(s)
- Yang Wang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
| | - Shanshan Guo
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
| | - Juqin Cao
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
- Medical Chemistry Department, School of Basic Medical Sciences, Ningxia Medical University, No. 1160 Shengli Street, Yinchuan 750004, Ningxia, China.
| | - Xue Pang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
| | - Zhe Zhang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
| | - Zhenyang Chen
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
| | - Yang Zhou
- College of Pharmacy, Liaoning University, No. 66 Middle Chongshan Road, Shenyang 110036, Liaoning, China.
| | - Zhufeng Geng
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
- Analytical and Testing Center, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
| | - Yuli Sang
- College of Pharmacy, Liaoning University, No. 66 Middle Chongshan Road, Shenyang 110036, Liaoning, China.
| | - Shushan Du
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China.
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Wang H, Ma D, Yang J, Deng K, Li M, Ji X, Zhong L, Zhao H. An Integrative Volatile Terpenoid Profiling and Transcriptomics Analysis for Gene Mining and Functional Characterization of AvBPPS and AvPS Involved in the Monoterpenoid Biosynthesis in Amomum villosum. FRONTIERS IN PLANT SCIENCE 2018; 9:846. [PMID: 29973947 PMCID: PMC6020762 DOI: 10.3389/fpls.2018.00846] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/31/2018] [Indexed: 05/21/2023]
Abstract
Amomum villosum, also known as Fructus Amomi, has been used to treat digestive diseases such as abdominal pain, vomiting, and dysentery. Volatile terpenoids are the active metabolites in the essential oil of Fructus Amomi. Nevertheless, downstream genes responsible for activating metabolites biosynthesis in A. villosum still remain unclear. Here, we report the use of an integrative volatile terpenoid profiling and transcriptomics analysis for mining the corresponding genes involved in volatile terpenoid biosynthesis. Ten terpene synthase (TPS) genes were discovered, and two of them were cloned and functionally characterized. AvTPS1 (AvPS: pinene synthase) catalyzed GPP to form α-pinene and β-pinene; AvTPS3 (AvBPPS: bornyl diphosphate synthase) produced bornyl diphosphate as major product and the other three monoterpenoids as minor products. Metabolite accumulation and gene expression pattern combined with AvPS biochemical characterization suggested that AvPS might play a role in biotic defense. On the other hand, the most active ingredient, bornyl acetate, was highly accumulated in seeds and was consistent with the high expression of AvBPPS, which further indicated that AvBPPS is responsible for the biosynthesis of bornyl acetate, the final metabolite of bornyl diphosphate in A. villosum. This study can be used to improve the quality of A. villosum through metabolic engineering, and for the sustainable production of bornyl acetate in heterologous hosts.
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