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Liu Z, Li QX, Song B. Pesticidal Activity and Mode of Action of Monoterpenes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4556-4571. [PMID: 35380824 DOI: 10.1021/acs.jafc.2c00635] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Synthetic pesticides are often associated with issues such as pest resistance, persistent residue, nontarget toxicity, and environmental issues. Therefore, the research and development of novel, safe, and effective pesticides has become a focus in pesticide discovery. Monoterpenes are secondary plant metabolites that commonly have multiple action targets and have been used in aromatherapy, alternative medicine, and food industries. Some are highly potent and stereoselective. They can potentially be botanical pesticides and serve as lead candidates for the design and synthesis of new monoterpenoid pesticides for agricultural applications. This article reviews publications and patents found in SciFinder Scholar between 2000 and May 2021 on monoterpenes and mainly focuses on pesticidal activities of frequently studied monoterpenes and their modes of action. The presented information and our views are hopefully useful for the development of monoterpenes as biopesticides and monoterpenoid pesticides.
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Affiliation(s)
- Zhengjun Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
- College of Chemistry and Chemical Engineering, Anshun University, Anshun, Guizhou 561000, P. R. China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
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Zheng L, Deng L, Zhong Y, Wang Y, Guo W, Fan X. Molluscicides against the snail-intermediate host of Schistosoma: a review. Parasitol Res 2021; 120:3355-3393. [PMID: 34486075 PMCID: PMC8418967 DOI: 10.1007/s00436-021-07288-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/10/2021] [Indexed: 11/29/2022]
Abstract
Schistosomiasis, a neglected tropical disease (NTD), is one of the most prevalent parasitoses in the World. Certain freshwater snail species are the intermediate host in the life cycle of schistosome species. Controlling snails employing molluscicides is an effective, quick, and convenient intervention strategy to prevent the spread of Schistosoma species in endemic regions. Advances have been made in developing both synthetic molluscicides and molluscicides derived from plants. However, at present, the development of molluscicides is not adapted to the actual demand for snails and schistosoma controlling. We undertake a systematic review of exploitation and application of synthetic molluscicides and molluscicides derived from plants to combat intermediate host snails. The detailed molluscicidal activity, structure–activity relationship, structural feature, and possible mechanism of some molluscicides are also highlighted, which may afford an important reference for the design of new, more effective molluscicides with low environmental impact and realize the aim of controlling schistosome at transmission stages.
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Affiliation(s)
- Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Ling Deng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Yatang Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
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Floris B, Galloni P, Conte V, Sabuzi F. Tailored Functionalization of Natural Phenols to Improve Biological Activity. Biomolecules 2021; 11:1325. [PMID: 34572538 PMCID: PMC8467377 DOI: 10.3390/biom11091325] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 12/11/2022] Open
Abstract
Phenols are widespread in nature, being the major components of several plants and essential oils. Natural phenols' anti-microbial, anti-bacterial, anti-oxidant, pharmacological and nutritional properties are, nowadays, well established. Hence, given their peculiar biological role, numerous studies are currently ongoing to overcome their limitations, as well as to enhance their activity. In this review, the functionalization of selected natural phenols is critically examined, mainly highlighting their improved bioactivity after the proper chemical transformations. In particular, functionalization of the most abundant naturally occurring monophenols, diphenols, lipidic phenols, phenolic acids, polyphenols and curcumin derivatives is explored.
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Affiliation(s)
- Barbara Floris
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
| | - Pierluca Galloni
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
| | - Valeria Conte
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
| | - Federica Sabuzi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, snc, 00133 Roma, Italy
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de Carvalho Augusto R, Merad N, Rognon A, Gourbal B, Bertrand C, Djabou N, Duval D. Molluscicidal and parasiticidal activities of Eryngium triquetrum essential oil on Schistosoma mansoni and its intermediate snail host Biomphalaria glabrata, a double impact. Parasit Vectors 2020; 13:486. [PMID: 32967724 PMCID: PMC7513307 DOI: 10.1186/s13071-020-04367-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/17/2020] [Indexed: 12/29/2022] Open
Abstract
Background Freshwater snails are the intermediate hosts of a large variety of trematode flukes such as Schistosoma mansoni responsible for one of the most important parasitic diseases caused by helminths, affecting 67 million people worldwide. Recently, the WHO Global Vector Control Response 2017–2030 (GVCR) programme reinforced its message for safer molluscicides as part of required strategies to strengthen vector control worldwide. Here, we present the essential oil from Eryngium triquetrum as a powerful product with molluscicide and parasiticide effect against S. mansoni and the snail intermediate host Biomphalaria glabrata. Methods In the present study, we describe using several experimental approaches, the chemical composition of E. triquetrum essential oil extract and its biological effects against the snail B. glabrata and its parasite S. mansoni. Vector and the free-swimming larval stages of the parasite were exposed to different oil concentrations to determine the lethal concentration required to produce a mortality of 50% (LC50) and 90% (LC90). In addition, toxic activity of this essential oil was analyzed against embryos of B. glabrata snails by monitoring egg hatching and snail development. Also, short-time exposure to sublethal molluscicide concentrations on S. mansoni miracidia was performed to test a potential effect on parasite infectivity on snails. Mortality of miracidia and cercariae of S. mansoni is complete for 5, 1 and 0.5 ppm of oil extract after 1 and 4 h exposure. Results The major chemical component found in E. triquetrum oil determined by GC-FID and GC/MS analyses is an aliphatic polyacetylene molecule, the falcarinol with 86.9–93.1% of the total composition. The LC50 and LC90 values for uninfected snails were 0.61 and 1.02 ppm respectively for 24 h exposure. At 0.5 ppm, the essential oil was two times more toxic to parasitized snails with a mortality rate of 88.8 ± 4.8%. Moderate embryonic lethal effects were observed at the concentration of 1 ppm. Severe surface damage in miracidia was observed with a general loss of cilia that probably cause their immobility. Miracidia exposed 30 min to low concentration of plant extract (0.1 ppm) were less infective with 3.3% of prevalence compare to untreated with a prevalence of 44%. Conclusions Essential oil extracted from E. triquetrum and falcarinol must be considered as a promising product for the development of new interventions for schistosomiasis control and could proceed to be tested on Phase II according to the WHO requirements. ![]()
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Affiliation(s)
- Ronaldo de Carvalho Augusto
- University Perpignan Via Domitia, IHPE, UMR 5244, CNRS, IFREMER, Perpignan, France.,University Montpellier, IHPE, UMR 5244, CNRS, IFREMER, Montpellier, France
| | - Nadjiya Merad
- Faculté des Sciences, Département de Chimie, Université de Tlemcen, Laboratoire COSNA, Tlemcen, Algeria
| | - Anne Rognon
- University Perpignan Via Domitia, IHPE, UMR 5244, CNRS, IFREMER, Perpignan, France.,University Montpellier, IHPE, UMR 5244, CNRS, IFREMER, Montpellier, France
| | - Benjamin Gourbal
- University Perpignan Via Domitia, IHPE, UMR 5244, CNRS, IFREMER, Perpignan, France.,University Montpellier, IHPE, UMR 5244, CNRS, IFREMER, Montpellier, France
| | - Cédric Bertrand
- EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, France.,Laboratoire d'Excellence «CORAIL», Université de Perpignan, Perpignan, France.,S.A.S. AkiNaO, Perpignan, France
| | - Nassim Djabou
- Faculté des Sciences, Département de Chimie, Université de Tlemcen, Laboratoire COSNA, Tlemcen, Algeria.
| | - David Duval
- University Perpignan Via Domitia, IHPE, UMR 5244, CNRS, IFREMER, Perpignan, France. .,University Montpellier, IHPE, UMR 5244, CNRS, IFREMER, Montpellier, France.
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Islam MT, Martorell M, Salehi B, Setzer WN, Sharifi-Rad J. Anti-Schistosoma mansoni effects of essential oils and their components. Phytother Res 2020; 34:1761-1769. [PMID: 32067278 DOI: 10.1002/ptr.6643] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/25/2019] [Accepted: 01/31/2020] [Indexed: 01/18/2023]
Abstract
Schistosoma mansoni is endemic in 55 countries around the world. S. mansoni is a water-borne parasite of humans belonging to the group of blood flukes. Generally, schistosomiasis is treated with praziquantel, which results in frequent treatment failures and reinfections. Essential oils have diverse biological effects, including antimicrobial, antiprotozoal and antiparasitic. This review aimed at summarizing available in vitro, in vivo and clinical trials showing evidence and mechanisms of actions of essential oils and their derivatives acting against S. mansoni. The findings suggest that a number of essential oils and/or their components act against S. mansoni. Essential oils and/or their derivatives may be one of the potential sources of antischistosomal drugs.
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Affiliation(s)
- Muhammad Torequl Islam
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, Concepcion, Chile.,Universidad de Concepción, Unidad de Desarrollo Tecnológico (UDT), Concepción, Chile
| | - Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL, 35899, USA.,Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT, 84043, USA
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Zolfaghari Z, Vatanparast J. Thymol provokes burst of action potentials in neurons of snail Caucasotachea atrolabiata. Comp Biochem Physiol C Toxicol Pharmacol 2020; 228:108654. [PMID: 31683013 DOI: 10.1016/j.cbpc.2019.108654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/27/2019] [Accepted: 10/29/2019] [Indexed: 12/15/2022]
Abstract
Thymol, a phenolic monoterpene, is well known for its antimicrobial, antifungal and antioxidant properties. In spite of wide use in oral care products, pharmaceutical and cosmetic preparation and in food industry, the effects of thymol on the neuronal activity and intrinsic properties have not been well studied. We studied the effects of thymol on the spontaneous activity and action potential properties of central neurons of snail Caucasotachea atrolabiata. Thymol (1 mM) altered action potentials characteristics and provoked epileptiform burst firing in snail neurons, which were partially reversible after washout. Before burst firing, action potentials had lower amplitude and maximum rising slope, while the threshold voltage was raised. These results suggest the inhibition of ion channels underlying action potential initiation and upstroke. The maximum falling slope and afterhyperpolarization were also considerably reduced, suggesting the inhibition of potassium channels. Thymol (0.5 mM) that was not able to induce burst firing in snail neurons, synergistically acted with potassium channel blocker, tetraethyl ammonium, to induce burst firing, which also supports the importance of potassium channel inhibition, especially delayed rectifier potassium channels, to the thymol-induced alteration of firing pattern. The thymol-induced burst firing seems to be dependent on both sodium and calcium currents. Our findings provide evidences for the ability of thymol in altering the firing mode of central neurons of snail, which apparently involves the inhibition of calcium and potassium currents. These results further support the interaction of thymol with ion channels and emphasize on the vulnerability of nervous system to this compound.
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Tin-Catalyzed Urea Alcoholysis With β-Citronellol: A Simple and Selective Synthesis of Carbamates. Catal Letters 2016. [DOI: 10.1007/s10562-016-1769-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Duval D, Galinier R, Mouahid G, Toulza E, Allienne JF, Portela J, Calvayrac C, Rognon A, Arancibia N, Mitta G, Théron A, Gourbal B. A novel bacterial pathogen of Biomphalaria glabrata: a potential weapon for schistosomiasis control? PLoS Negl Trop Dis 2015; 9:e0003489. [PMID: 25719489 PMCID: PMC4342248 DOI: 10.1371/journal.pntd.0003489] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 12/17/2014] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Schistosomiasis is the second-most widespread tropical parasitic disease after malaria. Various research strategies and treatment programs for achieving the objective of eradicating schistosomiasis within a decade have been recommended and supported by the World Health Organization. One of these approaches is based on the control of snail vectors in endemic areas. Previous field studies have shown that competitor or predator introduction can reduce snail numbers, but no systematic investigation has ever been conducted to identify snail microbial pathogens and evaluate their molluscicidal effects. METHODOLOGY/PRINCIPAL FINDINGS In populations of Biomphalaria glabrata snails experiencing high mortalities, white nodules were visible on snail bodies. Infectious agents were isolated from such nodules. Only one type of bacteria, identified as a new species of Paenibacillus named Candidatus Paenibacillus glabratella, was found, and was shown to be closely related to P. alvei through 16S and Rpob DNA analysis. Histopathological examination showed extensive bacterial infiltration leading to overall tissue disorganization. Exposure of healthy snails to Paenibacillus-infected snails caused massive mortality. Moreover, eggs laid by infected snails were also infected, decreasing hatching but without apparent effects on spawning. Embryonic lethality was correlated with the presence of pathogenic bacteria in eggs. CONCLUSIONS/SIGNIFICANCE This is the first account of a novel Paenibacillus strain, Ca. Paenibacillus glabratella, as a snail microbial pathogen. Since this strain affects both adult and embryonic stages and causes significant mortality, it may hold promise as a biocontrol agent to limit schistosomiasis transmission in the field.
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Affiliation(s)
- David Duval
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
- * E-mail:
| | - Richard Galinier
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Gabriel Mouahid
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Eve Toulza
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Jean François Allienne
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Julien Portela
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Christophe Calvayrac
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Laboratoire de Chimie des Biomolécules et de l’Environnement (LCBE, EA 4215), Perpignan, France
| | - Anne Rognon
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Nathalie Arancibia
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Guillaume Mitta
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - André Théron
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
| | - Benjamin Gourbal
- CNRS, UMR 5244, Ecologie et Evolution des Interactions (2EI), Perpignan, France
- Université de Perpignan Via Domitia, Perpignan, France
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Benelli G, Bedini S, Flamini G, Cosci F, Cioni PL, Amira S, Benchikh F, Laouer H, Di Giuseppe G, Conti B. Mediterranean essential oils as effective weapons against the West Nile vector Culex pipiens and the Echinostoma intermediate host Physella acuta: what happens around? An acute toxicity survey on non-target mayflies. Parasitol Res 2015; 114:1011-21. [DOI: 10.1007/s00436-014-4267-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 12/15/2014] [Indexed: 01/02/2023]
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Ardashov OV, Volcho KP, Salakhutdinov NF. Synthesis of hydroxy derivatives of limonene. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n04abeh004383] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Rodrigues KADF, Dias CN, do Amaral FMM, Moraes DFC, Mouchrek Filho VE, Andrade EHA, Maia JGS. Molluscicidal and larvicidal activities and essential oil composition of Cymbopogon winterianus. PHARMACEUTICAL BIOLOGY 2013; 51:1293-1297. [PMID: 23855832 DOI: 10.3109/13880209.2013.789536] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
UNLABELLED CONTEXT. Cymbopogon winterianus Jowitt ex Bor (Poaceae), known as citronella grass, is an aromatic herbaceous plant and the essential oil extracted from this grass is used in cosmetics, perfumes, hygiene and cleanliness products worldwide. OBJECTIVE This study investigated the composition and molluscicidal and larvicidal activities of the essential oil of C. winterianus cultivated in North Brazil. MATERIALS AND METHODS The oil was obtained by hydrodistillation, analyzed by gas chromatography (GC) and GC-mass spectrometry and then its molluscicidal and larvicidal activities against snails (Biomphalaria glabrata) and hatched larvae of Artemia salina, respectively, were evaluated at concentrations from 10 to 1000 mg/L. RESULTS The main constituents of oil were citronellal (26.5%), geraniol (16.2%), elemol (14.5%) and citronellol (7.3%). The molluscicidal test revealed significant lethal concentration (LC) values (LC90=97.0 mg/L, LC50=54.0 mg/L and LC20=22.0 mg/L), indicating the presence of molluscicidal compounds in the oil. In addition, the oil showed moderate larvicidal activity (LC50=181.0 mg/L) against the larvae of A. salina, which could justify its use in the aquatic environment without affecting other living organisms. DISCUSSION AND CONCLUSION The results suggest that the oil of C. winterianus could be an effective alternative to control schistosomiasis, with an average margin of safety to other living organisms that coexist with snails.
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Maggini S, Feci E, Cappelletto E, Girardi F, Palanti S, Di Maggio R. (I/O) hybrid alkoxysilane/zirconium-oxocluster copolymers as coatings for wood protection. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4871-4881. [PMID: 22970739 DOI: 10.1021/am301206t] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Novel inorganic-organic hybrid copolymers based on vinyl- or (3-mercaptopropyl)-trimethoxysilane and an organically modified zirconium-oxocluster were investigated as a wood preservation treatment. The copolymers were prepared using a modified sol-gel strategy not involving alkoxysilane pre-hydrolysis and were applied on wood through a dip coating method. Even though the copolymers were mainly present on the surface of the wood, EDX analysis showed also a uniform distribution of silicon and zirconium in the cell wall but not in the lumina. The grafting of the copolymers on wood was confirmed through FTIR, (13)C and (29)Si MAS NMR analysis. The copolymer obtained from (3-mercaptopropyl)trimethoxysilane was post-functionalized with the methacrylic ester of thymol; introduced for testing as a biocide. Preliminary accelerated biological tests against the brown rot fungus Coniophora puteana, showed resistance to the fungus for the samples coated with the vinyltrimethoxysilane copolymer, while uneven results were obtained for the samples coated with the (3-mercaptopropyl)trimethoxysilane copolymer, even when functionalized with the ester of thymol.
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Affiliation(s)
- Simona Maggini
- Dipartimento di Ingegneria dei Materiali e Tecnologie Industriali, Università degli Studi di Trento, via Mesiano 77, 38123 Trento, Italy.
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Teixeira T, Rosa JS, Rainha N, Baptista J, Rodrigues A. Assessment of molluscicidal activity of essential oils from five Azorean plants against Radix peregra (Müller, 1774). CHEMOSPHERE 2012; 87:1-6. [PMID: 22154003 DOI: 10.1016/j.chemosphere.2011.11.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 11/10/2011] [Accepted: 11/11/2011] [Indexed: 05/31/2023]
Abstract
The molluscicidal activity of essential oils from two endemic (Juniperus brevifolia; Laurus azorica) and three introduced (Hedychium gardnerianum; Pittosporum undulatum; Psidium cattleianum) Azorean plants against the snail Radix peregra was studied under laboratory conditions. Essential oils from leaves of H. gardnerianum, L. azorica and J.brevifolia presented promising molluscicidal activity on both adults and juveniles stages of R. peregra. The molluscicidal activity of these essential oils was found to be both time and concentration dependent. Lethal concentrations (LC(50)) varied between 15.4 (L. azorica) and 44.6 ppm (H. gardnerianum) for juveniles and from 45.3 (H. gardnerianum) to 54.6 ppm (J. brevifolia) for R. peregra adults. Ovicidal effect, calculated as percentage of egg hatching, at 100 ppm concentration, was observed in essential oils from P. undulatum flowers (4.2% of hatching) and leaves of H. gardnerianum (4.9%), L. azorica (7.4%) and J. brevifolia (17.7%). The present study is the first attempt to assess the molluscicidal potential of some Azorean plants essential oils against a Lymnaeidae snail. In fact, the H. gardnerianum, L. azorica and J. brevifolia can offer natural alternative tools for the control of R. peregra population, but more research is needed in order to determine the mode of action of these oils and determine the side effects on the ecosystem where this freshwater snail occurs.
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Affiliation(s)
- Tânia Teixeira
- CIBIO - Research Center in Biodiversity and Genetic Resources, Azores, Department of Biology, University of Azores, 9501-801 Ponta Delgada, Portugal.
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Socolsky C, Borkosky SA, Asakawa Y, Bardón A. Molluscicidal Phloroglucinols from the Fern Elaphoglossum piloselloides. JOURNAL OF NATURAL PRODUCTS 2009; 72:787-790. [PMID: 19239238 DOI: 10.1021/np800724h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two new bicyclic phloroglucinols were isolated from the diethyl ether extract of an Argentine collection of the fern Elaphoglossum piloselloides. Structures were established by analysis of their spectroscopic data ((1)H NMR, HRMS, IR) and chemical derivatization. Both compounds show an acute molluscicidal activity against the schistosomiasis vector snail Biomphalaria peregrina.
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Affiliation(s)
- Cecilia Socolsky
- Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
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