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Dos Santos FE, Sousa Carvalho MS, Cardoso MDG, Vilela LR, Andrade-Vieira LF. Bioactivity of hydroalcoholic extracts from tropaeolum majus L. (tropaeolaceae) on the germination, initial plant development and cell cycle of Lactuca sativa L. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2024; 87:579-591. [PMID: 38708983 DOI: 10.1080/15287394.2024.2349107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Natural products are usually considered harmless; however, these substances need to be consumed with caution. Biological assays with plant models are a suitable alternative for prospective studies to assess natural product-initiated toxicity. The aim of this study was to examine the toxic potential of leaf and flower extracts derived from Tropaeolum majus L. a widely used plant in traditional medicine. Seeds of Lactuca sativa L. were exposed to T. majus extracts and based upon the seedling growth curve values, the 50% Inhibition Concentration (IC50) was calculated and applied for cell cycle analysis exposure. Both extracts contained organic acids, proteins, amino acids, and terpene steroids. Sesquiterpene lactones and depside were detected in leaf extracts. The higher concentration tested exhibited a marked phytotoxic effect. The extracts induced clastogenic, aneugenic cytotoxic, and potential mutagenic effects. The possible relationships between the classes of compounds found in the extracts and effects on cells and DNA were determined.
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Vasconcelos LC, Carrijo TT, Venancio AN, Alves TA, Tuler AC, Hollunder RK, Garbin ML, Menini L, Praça-Fontes MM. Phytochemical screening and phytocytotoxic effects of the tropical Myrcia vittoriana (Myrtaceae). AN ACAD BRAS CIENC 2022; 94:e20210820. [PMID: 35857965 DOI: 10.1590/0001-3765202220210820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 11/04/2021] [Indexed: 11/22/2022] Open
Abstract
We investigated whether essential oil and aqueous and ethanolic extracts from M. vittoriana leaves have phytotoxic effects on the germination and initial development, and cytogenotoxic effects on the cell cycle, of model plants. The essential oil and extracts of M. vittoriana were characterized and used as treatments in phytotoxicity and cytotoxicity tests. The results indicated a reduction in germinative parameters and plant growth, with the higher concentrations of extracts and essential oil having the most evident effects. The cell cycle was also affected with a reduction of the mitotic index and the presence of chromosomal and nuclear alterations. All treatments showed clastogenic and aneugenic modes of action. The results can be associated with the synergistic effects of metabolites found in the extracts and essential oil, mainly the presence of the sesquiterpene germacrene D in the essential oil and of catechins, saponins, and tannins in the extracts. These substances inhibit plant germination and growth, confirming the phytotoxic effects of M. vittoriana in plant models, which should now be tested under field conditions.
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Affiliation(s)
- Loren Cristina Vasconcelos
- Universidade Federal do Espírito Santo, Centro de Ciências Agrárias e Engenharias, Programa de Pós-graduação em Genética e Melhoramento, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil
| | - Tatiana T Carrijo
- Universidade Federal do Espírito Santo, Centro de Ciências Agrárias e Engenharias, Programa de Pós-graduação em Genética e Melhoramento, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil.,Universidade Federal do Espírito Santo, Centro de Ciências Exatas, Naturais e da Saúde, Departamento de Biologia, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil
| | - Aldino Neto Venancio
- Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Laboratório de Fitoquímica, Rua Principal, s/n, Distrito de Rive, Caixa Postal 47, 29500-000 Alegre, ES, Brazil
| | - Thammyres A Alves
- Universidade Federal do Espírito Santo, Centro de Ciências Agrárias e Engenharias, Programa de Pós-graduação em Genética e Melhoramento, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil
| | - Amélia Carlos Tuler
- Instituto Nacional da Mata Atlântica, Instituto Nacional da Mata Atlântica, Avenida José Ruschi, Nº 4, Centro, 29650-000 Santa Teresa, ES, Brazil.,Universidade Federal de Roraima - UFRR, Campus Paricarana, Av. Cap. Ene Garcez, 2413, 69304-000 Boa Vista, RR, Brazil
| | - Renan K Hollunder
- Universidade Federal do Rio de Janeiro, Programa de Pós-Graduação em Ecologia, Avenida Pedro Calmon, 550, Fundão, 21941-970 Rio de Janeiro, RJ, Brazil
| | - Mário Luís Garbin
- Universidade Federal do Espírito Santo, Centro de Ciências Exatas, Naturais e da Saúde, Departamento de Biologia, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil
| | - Luciano Menini
- Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Laboratório de Fitoquímica, Rua Principal, s/n, Distrito de Rive, Caixa Postal 47, 29500-000 Alegre, ES, Brazil
| | - Milene M Praça-Fontes
- Universidade Federal do Espírito Santo, Centro de Ciências Agrárias e Engenharias, Programa de Pós-graduação em Genética e Melhoramento, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil.,Universidade Federal do Espírito Santo, Centro de Ciências Exatas, Naturais e da Saúde, Departamento de Biologia, Alto Universitário, s/n, Caixa Postal 16, 29500-000 Alegre, ES, Brazil
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Dos Santos FE, Carvalho MSS, Silveira GL, Correa FF, Cardoso MDG, Andrade-Vieira LF, Vilela LR. Phytotoxicity and cytogenotoxicity of hydroalcoholic extracts from Solanum muricatum Ait. and Solanum betaceum Cav. (Solanaceae) in the plant model Lactuca sativa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:27558-27568. [PMID: 29508193 DOI: 10.1007/s11356-017-1015-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 12/11/2017] [Indexed: 06/08/2023]
Abstract
Plants are rich in biologically active compounds. They can be explored for the production of bioherbicides. In this context, the present work aimed to evaluate the allelopathic effect of hydroalcoholic extracts from two Solanaceae species: Solanum muricatum Ait. and Solanum betaceum Cav. For this end, we conducted phytochemical screening and biological assays, determining the effects of the extracts on germination, early development, cell cycle, and DNA fragmentation in plantlets and meristematic cells of the plant model Lactuca sativa L. (lettuce). The percentage of seeds germinated under effect of S. muricatum extract did not differ from the control, but plantlet growth was reduced at the highest concentrations. For S. betaceum extract, dose dependence was observed for both germination and plantlet development, with the highest concentrations inhibiting germination. The growth curves revealed the concentrations of 2.06 and 1.93 g/L for S. muricatum and S. betaceum extracts, respectively, as those reducing 50% of root growth (RG). At these concentrations, both extracts presented mitodepressive effect, besides inducing significant increase in the frequency of condensed nuclei, associated to DNA fragmentation and cytoplasmic shrinkage. The frequency of chromosome alterations was not significant. We further discuss the mechanisms of action related to the chemical composition of the extracts, which presented organic acids, reducing sugars, proteins, amino acids, and tannins, besides catechins and flavonoids, only found in the extract of S. betaceum.
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Affiliation(s)
| | | | | | | | | | | | - Luciane Resende Vilela
- Department of Agriculture, Universidade Federal de Lavras, Lavras, MG, 37200-000, Brazil
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Cesar PHS, Trento MVC, Oliveira DA, Simão AA, Vieira LFA, Marcussi S. Prospection of Effects of Guava Leaves Infusion: Antigenotoxic Action and Enzymatic Inhibition. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Several forms of Psidium guajava L. (guava) leaf preparations have been widely used for prevention and treatment of illnesses. However, researches about the protective action of guava's natural products on the genetic material of animal cells is scarce. Accordingly, the aim of this study was to evaluate the antigenotoxic potential of infusions of guava leaves from three cultivars (Pedro Sato, Paluma and Roxa) against DNA damage induced by Doxorubicin (DXR) in human leukocytes, and their effects on enzymatic inhibition. To assess the antigenotoxic potential of these infusions, a comet assay (single cell electrophoresis) was conducted. In addition, their inhibitory potential on phospholipase and hemolytic activities was assessed. The evaluated infusion volumes (25, 50 and 300μL) presented inhibitions around 75% of the DXR-induced damage frequencies. Their protective effect was demonstrated by arbitrary unit calculations, with values between 52.51 and 66.60 for all treatments, 250.51 for positive control (DXR), and 45.49 for phosphate buffered saline (negative control). The infusions significantly inhibited phospholipase and hemolytic activities induced by Bothrops alternatus and B. moojeni venoms, with inhibitions ≥ 50% for both activities induced by B. alternatus. The infusions of P. guajava from the cultivars analyzed present antigenotoxic potential, but also demonstrate potential of enzymatic inhibition on A2phospholipases and proteases.
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Affiliation(s)
- Pedro H S Cesar
- Department of Chemistry, Universidade Federal de Lavras, CP: 3037, Lavras, CEP: 37200-000, Minas Gerais, Brazil
| | - Marcus V C Trento
- Department of Chemistry, Universidade Federal de Lavras, CP: 3037, Lavras, CEP: 37200-000, Minas Gerais, Brazil
| | - Daniela A Oliveira
- Department of Chemistry, Universidade Federal de Lavras, CP: 3037, Lavras, CEP: 37200-000, Minas Gerais, Brazil
| | - Anderson A Simão
- Department of Chemistry, Universidade Federal de Lavras, CP: 3037, Lavras, CEP: 37200-000, Minas Gerais, Brazil
| | - Larissa F A Vieira
- Department of Biological Sciences, Universidade Federal de Lavras, CP: 3037, Lavras, CEP: 37200-000, Minas Gerais, Brazil
| | - Silvana Marcussi
- Department of Chemistry, Universidade Federal de Lavras, CP: 3037, Lavras, CEP: 37200-000, Minas Gerais, Brazil
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