Asteraceae
Mostrando 13-24 de 1154 artigos, teses e dissertações.
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13. A newly validated HPLC–DAD-UV method to study the effects of medicinal plants extracts, fractions and isolate compounds on gastric emptying in rodents
Abstract In this study, we developed and validated a chromatographic method by High-performance Liquid Chromatography coupled to Diode-Array Ultraviolet Detector for quantification of acetaminophen in small volumes of plasma. This analytical method is particularly suitable for studies of gastric emptying time and pharmacokinetics in small rodents. Orally adm
Rev. bras. farmacogn.. Publicado em: 09/12/2019
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14. Morphological diversity of foliar trichomes in Asteraceae from Sand-fields of the Pampa biome, Rio Grande do Sul State, Brazil
RESUMO Asteraceae é a maior família das angiospermas e ocorre predominante em áreas campestres. Este estudo buscou identificar e caracterizar os tricomas foliares de 34 espécies de Asteraceae dos Campos de Areais do bioma Pampa por meio de análises da epiderme (vista frontal e transversal) em microscopia de luz e eletrônica de varredura. Foram identifi
Hoehnea. Publicado em: 25/11/2019
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15. Checklist de angiospermas da APA Municipal do Rio Vermelho/Humboldt, Santa Catarina, Brasil
Resumo São apresentados os resultados do levantamento florístico das angiospermas da APA Municipal do Rio Vermelho/Humboldt, localizada em área de Mata Atlântica no sul do Brasil. As coletas foram realizadas entre os anos de 2004 e 2017, e a identificação das espécies foi baseada em consulta bibliográfica, comparação com acervos de herbários e aux
Rodriguésia. Publicado em: 11/11/2019
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16. Angiosperms of dry grasslands and savannahs of Jalapão, the largest conserved Cerrado area in Brazil
Resumo Esse estudo fornece uma listagem das espécies de angiospermas que ocorrem na região do Jalapão, Tocantins, Brasil, inserida no domínio do Cerrado, um dos hotspots globais de diversidade. A região do Jalapão é ainda altamente conservada, apesar dos vários tipos de ameaça à sua biodiversidade; sua flora, contudo, ainda é pouco conhecida. Para
Rodriguésia. Publicado em: 11/11/2019
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17. In-vitro cardiovascular protective activity of a new achillinoside from Achillea alpina
Abstract Achillinoside was isolated from methanol extract of Achillea alpina L., Asteraceae. The structure of the compound was characterized based on various spectrum data, including IR, HR-ESI-MS, 1D and 2D NMR. The cardiovascular protective effect of achillinoside was tested on H2O2-induced H9c2 cells. In our research, achillinoside could increase the cell
Rev. bras. farmacogn.. Publicado em: 17/10/2019
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18. “Arnicas” from Brazil: comparative analysis among ten species
Abstract The “arnicas” found in Brazil are examples of different species of the family Asteraceae used in popular medicine for its attributed anti-inflammatory action. Among the species known and used as “arnica” we selected: Calea uniflora Less., Chaptalia nutans (L.) Polák, Lychnophora ericoides Mart., Lychnophora pinaster Mart., Lychnophora salic
Rev. bras. farmacogn.. Publicado em: 17/10/2019
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19. Chemical diversity and activity profiles of HIV-1 reverse transcriptase inhibitors from plants
Abstract Current challenges to antiretroviral therapy have opened new vistas in the search for novel drugs from natural products. This review focusses on plants as sources of inhibitors for human immunodeficiency virus type 1 (HIV-1) reverse transcriptase. Based on a systematic search of the literature, anti-HIV-1 reverse transcriptase activity was recorded
Rev. bras. farmacogn.. Publicado em: 17/10/2019
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20. Aquatic vascular plants of South Brazil: checklist and a comparative floristic approach
ABSTRACT Aquatic ecosystems support species diversity, and knowledge of plant communities is essential for wetland conservation programs. This study provides a checklist of aquatic vascular plants of South Brazil and establishes their floristic affinities with bordering South America phytogeographical domains. The checklist was based on 52 sources, including
Acta Bot. Bras.. Publicado em: 07/10/2019
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21. New distribution record, host plant and notes on natural history of Tomoplagia rudolphi (Lutz & Lima, 1918) (Diptera: Tephritidae)
ABSTRACT In the state of Rio Grande do Sul, there are few records of geographical distribution and host plants to species of Tomoplagia Coquillett, as well as other genera of Tephritidae, especially those associated with plants of the family Asteraceae. Here, we report the first occurrence of Tomoplagia rudolphi (Lutz & Lima, 1918) in the state of Rio Grande
Pap. Avulsos Zool.. Publicado em: 03/10/2019
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22. Meloidogyne Species Associated with Weeds in Rio Grande do Sul
RESUMO: A frequência de espécies do nematoide-das-galhas (Meloidogyne spp.) foi avaliada em plantas daninhas coletadas em diferentes lavouras em pousio do Estado do Rio Grande do Sul, Brasil. Nas amostras onde o nematoide foi encontrado, a identificação das espécies do nematoide-das-galhas foi feita por eletroforese, utilizando-se a isoenzima esterase.
Planta daninha. Publicado em: 30/09/2019
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23. Bees Diversity on Flowers of Eremanthus spp. (Asteraceae)
ABSTRACT Bees are considered important pollinators due to their fidelity to plants, enabling the maintenance of gene flow between plant species. The objective of this study was to recognize the visit of bees in two Candeia species, Eremanthus erythropappus and Eremanthus incanus (Asteraceae), as well as to analyze the pollen content carried by bees in a rege
Floresta Ambient.. Publicado em: 29/08/2019
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24. Medicinal plants in cultures of Afro-descendant communities in Brazil, Europe and Africa
ABSTRACT Ethnomedicine focuses on empirical and traditional knowledge of healing practices of different human groups, including the use of plants as medicine. We aimed to determine whether there is consensus regarding the use of plants in traditional medicine of Afro-descendant communities in Brazil, Europe and Africa. Data were obtained through interviews,
Acta Bot. Bras.. Publicado em: 01/08/2019