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Oliveira FM, Wanderley-Teixeira V, Cruz GS, Silva CT, Dutra KA, Costa HN, Braga VA, Silva EJ, Guedes CA, Alves TJ, Teixeira ÁA. Histological, histochemical and energy disorders caused by R-limonene on Aedes aegypti L. larvae (Diptera: Culicidae). Acta Trop 2021; 221:105987. [PMID: 34058162 DOI: 10.1016/j.actatropica.2021.105987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/14/2021] [Accepted: 05/24/2021] [Indexed: 10/21/2022]
Abstract
The study evaluated the effects of R-limonene, in sublethal concentration, on the histology, histochemistry, biochemistry, and carbohydrates and proteins levels in the third instar Aedes aegypti larvae. The R-limonene (LC50 of 27 ppm) and control groups were analyzed 12 and 24 h after the beginning of treatments. The midgut of the control larvae was composed of cylindrical and elongated cells with a spherical and central nucleus and regenerative cells with a pyramidal shape. After 12 h of treatment, columnar cells, protuberances, and cytoplasmic vacuolization were found. However, 24 h after treatment, complete disorganization of the epithelium was observed. There was a positive reaction in all treatments for the presence of glycogen. However, the midgut of larvae treated with R-limonene showed higher levels. For the total protein, positive marking occurred in all groups evaluated, with higher levels in treatments and the lowest in control 12 h. The levels of total protein and glycogen increased in the treated larvae compared to the 12 h control. Besides, a reduction in total sugar levels was observed in the treated larvae compared to controls 12 and 24 h, being more evident in the last one. Therefore, these results demonstrate that R-Limonene caused pathological changes in the epithelium of the A. aegypti midgut at histophysiological and biochemical levels.
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Dutra KA, Wanderley Teixeira V, Cruz GS, Silva CTS, D Assunção CG, Ferreira CGM, Monteiro ALB, Agra Neto AC, Lapa Neto CJC, Teixeira AAC, Navarro DMAF. Morphological and immunohistochemical study of the midgut and fat body of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: noctuidae) treated with essential oils of the genus Piper. Biotech Histochem 2019; 94:498-513. [PMID: 31064227 DOI: 10.1080/10520295.2019.1599144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Essential oils are a promising alternative to insecticides. We investigated the LD50 of oils extracted from Piper corcovadensis, P. marginatum, and P. arboreum after 48 h topical contact with Spodoptera frugiperda larvae using morphometry, histochemistry and immunohistochemistry of the midgut and fat body. Chromatography revealed that E-caryophyllene was the principal compound common to the Piper species. The essential oils of P. corcovadensis, P. marginatum and P. arboreum caused deleterious changes in the midgut of S. frugiperda larvae. P. corcovadensis oil produced the lowest LD50 and significant histopathological alterations including elongation of the columnar cells, formation of cytoplasmic protrusions, reduction in carbohydrate, increased apoptotic index and decreased cell proliferation. P. arboreum oil caused histopathological alterations similar to P. corcovadensis, but caused the highest rate of cell proliferation and increased regenerative cells, which indicated rapid regeneration of the epithelium. Our findings demonstrated the insecticidal potential of P. corcovadensis for control of S. frugiperda owing to the significant damage it inflicted on S. frugiperda midgut.
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Affiliation(s)
- K A Dutra
- Department of Agronomy/Entomology, Federal Rural University of Pernambuco , Recife , Brazil
| | - V Wanderley Teixeira
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco , Recife , Brazil
| | - G S Cruz
- Department of Agronomy/Entomology, Federal Rural University of Pernambuco , Recife , Brazil
| | - C T S Silva
- Department of Agronomy/Entomology, Federal Rural University of Pernambuco , Recife , Brazil
| | - C G D Assunção
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco , Recife , Brazil
| | - C G M Ferreira
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco , Recife , Brazil
| | - A L B Monteiro
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco , Recife , Brazil
| | | | - C J C Lapa Neto
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco , Recife , Brazil
| | - A A C Teixeira
- Department of Morphology and Animal Physiology, Federal Rural University of Pernambuco , Recife , Brazil
| | - D M A F Navarro
- Department of Fundamental Chemistry, Federal University of Pernambuco , Recife , Brazil
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Silva C, Wanderley-Teixeira V, Cunha FM, Oliveira JV, Dutra KA, Navarro DF, Teixeira A. Effects of citronella oil (Cymbopogon winterianus Jowitt ex Bor) on Spodoptera frugiperda (J. E. Smith) midgut and fat body. Biotech Histochem 2017; 93:36-48. [PMID: 29205073 DOI: 10.1080/10520295.2017.1379612] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
The armyworm, Spodoptera frugiperda, is the principal pest of corn in Brazil. Control is achieved primarily by synthetic insecticides, which cause problems for the agro-ecosystem. Alternative methods of control are under investigation and citronella (Cymbopogon winterianus) essential oil appears to be a promising agent. We investigated the effects of citronella oil using histological, histochemical and immunohistochemical methods. The midgut of larvae treated with citronella exhibited altered epithelium including cytoplasmic protrusions, columnar cell extrusion, pyknotic nuclei, and increased periodic acid-Schiff positive granules. Regenerative cells in the epithelium of the midgut increased in number, which facilitated subsequent regeneration of this tissue. After exposure to citronella, trophocytes, the principal cell type of the fat body, possessed enlarged vacuoles and mitotic bodies, and contained reduced amounts of glycogen, lipid, and protein. Citronella oil caused morphological changes of the midgut and reduction of stored resources in the fat body, which may adversely affect insect reproduction and survival.
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Affiliation(s)
- Cts Silva
- a Departments of 1Agronomy-Entomology
| | - V Wanderley-Teixeira
- a Departments of 1Agronomy-Entomology.,b Morphology and Animal Physiology , Rural Federal University of Pernambuco , Dois Irmãos
| | - F M Cunha
- c Frassinetti Faculty of Recife , Boa Vista
| | | | - K A Dutra
- a Departments of 1Agronomy-Entomology
| | - Dma Ferraz Navarro
- d Chemical Ecology Laboratory, Department of Fundamental Chemistry , Federal University of Pernambuco, Cidade Universitária , Recife , Brazil
| | - Aac Teixeira
- b Morphology and Animal Physiology , Rural Federal University of Pernambuco , Dois Irmãos
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Cruz GS, Wanderley-Teixeira V, Oliveira JV, D’ assunção CG, Cunha FM, Teixeira ÁA, Guedes CA, Dutra KA, Barbosa DR, Breda MO. Effect of trans-anethole, limonene and your combination in nutritional components and their reflection on reproductive parameters and testicular apoptosis in Spodoptera frugiperda (Lepidoptera: Noctuidae). Chem Biol Interact 2017; 263:74-80. [DOI: 10.1016/j.cbi.2016.12.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/08/2016] [Accepted: 12/15/2016] [Indexed: 11/29/2022]
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Cruz GS, Wanderley-Teixeira V, Oliveira JV, Lopes FSC, Barbosa DRS, Breda MO, Dutra KA, Guedes CA, Navarro DMAF, Teixeira AAC. Sublethal Effects of Essential Oils From Eucalyptus staigeriana (Myrtales: Myrtaceae), Ocimum gratissimum (Lamiales: Laminaceae), and Foeniculum vulgare (Apiales: Apiaceae) on the Biology of Spodoptera frugiperda (Lepidoptera: Noctuidae). J Econ Entomol 2016; 109:660-666. [PMID: 26868417 DOI: 10.1093/jee/tow005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Spodoptera frugiperda (Smith 1797) (Lepidoptera: Noctuidae) is a major pest of maize, Zea mays L. Its control is often achieved through repeated applications per season of insecticides, which may lead to adverse effects on the ecosystem. Thus, the study of alternative methods with less environmental impact has expanded to include the use of essential oils. These oils are products of the secondary metabolism in plants, and their insecticidal activity has been widely demonstrated in populations of many pest insects. This study evaluated the insecticidal activities of essential oils from Eucalyptus staigeriana, Ocimum gratissimum, and Foeniculum vulgare on Spodoptera frugiperda. Gas chromatography–mass spectrometry profiles and contact toxicity of these oils as well as their sublethal effects on larvae and reproductive parameters in adults were evaluated. All three oils had sublethal effects on S. frugiperda; however, the oil of O. gratissimum showed the best results at all doses tested. These essential oils may have promise for control of S. frugiperda.
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Bezerra-Silva PC, Dutra KA, Santos GKN, Silva RCS, Iulek J, Milet-Pinheiro P, Navarro DMAF. Evaluation of the Activity of the Essential Oil from an Ornamental Flower against Aedes aegypti: Electrophysiology, Molecular Dynamics and Behavioral Assays. PLoS One 2016; 11:e0150008. [PMID: 26927837 PMCID: PMC4771710 DOI: 10.1371/journal.pone.0150008] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 02/07/2016] [Indexed: 11/19/2022] Open
Abstract
Dengue fever has spread worldwide and affects millions of people every year in tropical and subtropical regions of Africa, Asia, Europe and America. Since there is no effective vaccine against the dengue virus, prevention of disease transmission depends entirely on regulating the vector (Aedes aegypti) or interrupting human-vector contact. The aim of this study was to assess the oviposition deterrent activity of essential oils of three cultivars of torch ginger (Etlingera elatior, Zingiberaceae) against the dengue mosquito. Analysis of the oils by gas chromatography (GC)-mass spectrometry revealed the presence of 43 constituents, of which α-pinene, dodecanal and n-dodecanol were the major components in all cultivars. Solutions containing 100 ppm of the oils exhibited oviposition deterrent activities against gravid Ae. aegypti females. GC analysis with electroantennographic detection indicated that the oil constituents n-decanol, 2-undecanone, undecanal, dodecanal, trans-caryophyllene, (E)-β-farnesene, α-humulene, n-dodecanol, isodaucene and dodecanoic acid were able to trigger antennal depolarization in Ae. aegypti females. Bioassays confirmed that solutions containing 50 ppm of n-dodecanol or dodecanal exhibited oviposition deterrent activities, while a solution containing the alcohol and aldehyde in admixture at concentrations representative of the oil presented an activity similar to that of the 100 ppm oil solution. Docking and molecular dynamics simulations verified that the interaction energies of the long-chain oil components and Ae. aegypti odorant binding protein 1 were quite favorable, indicating that the protein is a possible oviposition deterrent receptor in the antenna of Ae. aegypti.
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Affiliation(s)
- Patrícia C. Bezerra-Silva
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670–901, Recife, PE, Brazil
| | - Kamilla A. Dutra
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670–901, Recife, PE, Brazil
| | - Geanne K. N. Santos
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670–901, Recife, PE, Brazil
| | - Rayane C. S. Silva
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670–901, Recife, PE, Brazil
| | - Jorge Iulek
- Laboratório de Purificação e Determinação de Estruturas de Proteínas, Departamento de Química, Universidade Estadual de Ponta Grossa, 84070–900, Ponta Grossa, PR, Brazil
| | - Paulo Milet-Pinheiro
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670–901, Recife, PE, Brazil
| | - Daniela M. A. F. Navarro
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670–901, Recife, PE, Brazil
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da Silva JBP, Navarro DMDAF, da Silva AG, Santos GKN, Dutra KA, Moreira DR, Ramos MN, Espíndola JWP, de Oliveira ADT, Brondani DJ, Leite ACL, Hernandes MZ, Pereira VRA, da Rocha LF, de Castro MCAB, de Oliveira BC, Lan Q, Merz KM. Thiosemicarbazones as Aedes aegypti larvicidal. Eur J Med Chem 2015; 100:162-75. [PMID: 26087027 DOI: 10.1016/j.ejmech.2015.04.061] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 04/28/2015] [Accepted: 04/29/2015] [Indexed: 01/21/2023]
Abstract
A set of aryl- and phenoxymethyl-(thio)semicarbazones were synthetized, characterized and biologically evaluated against the larvae of Aedes aegypti (A. aegypti), the vector responsible for diseases like Dengue and Yellow Fever. (Q)SAR studies were useful for predicting the activities of the compounds not included to create the QSAR model as well as to predict the features of a new compound with improved activity. Docking studies corroborated experimental evidence of AeSCP-2 as a potential target able to explain the larvicidal properties of its compounds. The trend observed between the in silico Docking scores and the in vitro pLC50 (equals -log LC50, at molar concentration) data indicated that the highest larvicidal compounds, or the compounds with the highest values for pLC50, are usually those with the higher docking scores (i.e., greater in silico affinity for the AeSCP-2 target). Determination of cytotoxicity for these compounds in mammal cells demonstrated that the top larvicide compounds are non-toxic.
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Affiliation(s)
- João Bosco P da Silva
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil.
| | - Daniela Maria do A F Navarro
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil.
| | - Aluizio G da Silva
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Geanne K N Santos
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Kamilla A Dutra
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Diogo Rodrigo Moreira
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - Mozart N Ramos
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, 50670-901, Recife, PE, Brazil
| | - José Wanderlan P Espíndola
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-521, Recife, PE, Brazil
| | - Ana Daura T de Oliveira
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-521, Recife, PE, Brazil
| | - Dalci José Brondani
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-521, Recife, PE, Brazil
| | - Ana Cristina L Leite
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-521, Recife, PE, Brazil
| | - Marcelo Zaldini Hernandes
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal de Pernambuco, 50740-521, Recife, PE, Brazil
| | - Valéria R A Pereira
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil
| | - Lucas F da Rocha
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil
| | - Maria Carolina A B de Castro
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil
| | - Beatriz C de Oliveira
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, 50670-420, Recife, PE, Brazil
| | - Que Lan
- Department of Entomology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI 53706, USA
| | - Kenneth M Merz
- Quantum Theory Project, University of Florida, 2234 New Physics Building, Gainesville, PO Box 118435, Florida, USA
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Bezerra-Silva PC, Santos JC, Santos GKN, Dutra KA, Santana ALBD, Maranhão CA, Nascimento MS, Navarro DMAF, Bieber LW. Extract of Bowdichia virgilioides and maackiain as larvicidal agent against Aedes aegypti mosquito. Exp Parasitol 2015; 153:160-4. [PMID: 25819294 DOI: 10.1016/j.exppara.2015.03.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 03/11/2015] [Accepted: 03/20/2015] [Indexed: 11/30/2022]
Abstract
The larvicidal activities of extracts of three hardwood species (Hymenaea stigonorcapa, Anadenanthera colubrina and Bowdichia virgilioides) against 4th instar larvae of Aedes aegypti were evaluated using WHO guidelines. Extracts of H. stignocarpa and A. colubrina showed weak activity. The highest larvicidal effect was obtained with the cyclohexane extract of the heartwood of B. virgilioides, which caused 100% mortality at concentrations at 50 and 100 µg/mL. Fraction toluene/EtOAc (8:2) from this extract showed larvicidal activity (LC₅₀ = 34.90 ± 1.27 µg/mL). A mixture of two compounds identified as medicarpin and maackiain exhibited a very good larvicidal activity (sub-fraction 2, LC₅₀ = 17.5 ± 1.87 µg/mL) and maackiain showed to be a strong larvicidal compound (LC₅₀ = 21.95 ± 1.34 µg/mL). This result can be of value in the search for new natural larvicidal compounds from other hardwood plant extracts and presents the first report of B. virgilioides being used to control a mosquito vector.
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Affiliation(s)
- Patrícia C Bezerra-Silva
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Jefferson C Santos
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Geanne K N Santos
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Kamilla A Dutra
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Andrea L B D Santana
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil; Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Claudia A Maranhão
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil; Instituto Federal de Educação, Ciência e Tecnologia de Pernambuco, Recife, Pernambuco, Brazil
| | - Márcia S Nascimento
- Departamento de Antibióticos, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Daniela M A F Navarro
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | - Lothar W Bieber
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
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Santos AGS, Dutra KA, Dutra MTD, Silva FSF, Maranhão CA, Navarro DM, Frutuoso MNM, Brandão SSF. PLANTAS MEDICINAIS COMERCIALIZADAS EM MERCADOS PÚBLICOS NA REGIÃO METROPOLITANA DO RECIFE – PE: INFLUÊNCIA DO MODO DE CONSERVAÇÃO NA COMPOSIÇÃO QUÍMICA DO ÓLEO ESSENCIAL. HOLOS 2015. [DOI: 10.15628/holos.2015.2671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
O Grupo de Pesquisa em Educação e Interdisciplinaridade desenvolve ações de pesquisa, visando estudar o modelo de Gestão dos Mercados Públicos da Região Metropolitana do Recife. O objetivo é analisar seu funcionamento em relação aos aspectos de educação, ambiente, segurança alimentar e administração, para a elaboração de uma proposta de gestão ambiental. Neste contexto, no presente trabalho foi realizado o estudo químico de algumas plantas comercializadas no Mercado Público de Casa Amarela, para verificar a qualidade do produto oferecido ao consumidor pretendendo como resultado levar ao feirante orientações de correta conservação das plantas para que as mesmas mantenham seus princípios ativos. As plantas selecionadas foram R. officinalis, O. basilicum e C. murale, cujas folhas foram utilizadas frescas e secas naturalmente à temperatura ambiente. Foram realizadas extrações do óleo essencial das folhas e observou-se que, independentemente do óleo ser obtido de folhas frescas ou secas, manteve bons teores, semelhantes índices de refração e os mesmos componentes químicos majoritários. Assim, o processo de secagem foi vantajoso, representando uma importante contribuição ao processo de conservação destas plantas trazendo maior valor agregado ao produto, reduzindo as perdas pelo feirante e estabilizando a oferta ao consumidor.
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Santos GKN, Dutra KA, Lira CS, Lima BN, Napoleão TH, Paiva PMG, Maranhão CA, Brandão SSF, Navarro DMAF. Effects of Croton rhamnifolioides essential oil on Aedes aegypti oviposition, larval toxicity and trypsin activity. Molecules 2014; 19:16573-87. [PMID: 25317582 PMCID: PMC6271117 DOI: 10.3390/molecules191016573] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/15/2014] [Accepted: 09/26/2014] [Indexed: 11/17/2022] Open
Abstract
Although numerous reports are available concerning the larvicidal potential of essential oils, very few investigations have focused on their mechanisms of action. In the present study, we have investigated the chemical composition of the leaf oil of Croton rhamnifolioides during storage and its effects on oviposition and survival of larvae of the dengue fever mosquito Aedes aegypti. In addition, we have established a possible mechanism of action for the larvicidal activity of the essential oil. GC-MS analyses revealed marked differences in the composition of oil that had been freshly isolated and that of a sample that had been stored in a sealed amber-glass vial under refrigeration for three years. However, both fresh and stored oil exhibited substantial larvicidal activities with LC50 values of 122.35 and 89.03 ppm, respectively, and oviposition deterrent effects against gravid females at concentrations of 50 and 100 µg·mL-1. These results demonstrate that the larvicidal effect of the essential oil was unchanged during three years of storage even though its chemical composition altered. Hence, the essential oil could be used in the preparation of commercial products. In addition, we observed that the trypsin-like activity of mosquito larvae was inhibited in vitro by the essential oil of C. rhamnifolioides, suggesting that the larvicidal effect may be associated with inhibition of this enzyme.
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Affiliation(s)
- Geanne K N Santos
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Kamilla A Dutra
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Camila S Lira
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Bheatriz N Lima
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Thiago H Napoleão
- Laboratório de Glicoproteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-420 Recife, PE, Brazil
| | - Patrícia M G Paiva
- Laboratório de Glicoproteínas, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-420 Recife, PE, Brazil
| | - Claudia A Maranhão
- Laboratório de Pesquisa e Desenvolvimento de Produtos Tecnológicos, Instituto Federal de Educação, Ciência e Tecnologia de Pernambuco, 50740-540 Recife, PE, Brazil
| | - Sofia S F Brandão
- Laboratório de Pesquisa e Desenvolvimento de Produtos Tecnológicos, Instituto Federal de Educação, Ciência e Tecnologia de Pernambuco, 50740-540 Recife, PE, Brazil
| | - Daniela M A F Navarro
- Laboratório de Ecologia Química, Departamento de Química Fundamental, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
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Cruz GS, Wanderley-Teixeira V, Oliveira JV, Correia AA, Breda MO, Alves TJS, Cunha FM, Teixeira AAC, Dutra KA, Navarro DMAF. Bioactivity of Piper hispidinervum (Piperales: Piperaceae) and Syzygium aromaticum (Myrtales: Myrtaceae) oils, with or without formulated Bta on the biology and immunology of Spodoptera frugiperda (Lepidoptera: Noctuidae). J Econ Entomol 2014; 107:144-153. [PMID: 24665696 DOI: 10.1603/ec13351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The combination of essential oils and Bacillus thuringiensis Berliner may represent an interesting control strategy. Thus, the study tested the following hypothesis: the combination of long pepper oil (Piper hispidinervum L.) and clove (Syzygium aromaticum L.) oils in two concentrations with Xentari WG (Bta) yields a more effective control of Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae) affecting biological and reproductive parameters and leading to changes in the levels of phenoloxidase and nitric oxide in the hemolymph of the pest. The results demonstrate that only long pepper oil, at the highest concentration with Xentari WG (Bta), promotes reduced larval survival. However, both oils with or without the insecticide interfere in the biology and humoral immunity of S.frugiperda. All treatments caused a decrease in the amount of eggs, except for the clove oil at both concentrations without Bta. Therefore, the use of these oils is a promising alternative for the integrated management of S. frugiperda; however, its association with Bta demonstrated no significant increase in their efficiency.
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