Consulta: creatorFacets:"MOURA,SIDNEI"
Registros recuperados: 4
Data/hora: 09/06/2024 14:34:59

In vitro antifungal activity of four chemotypes of Lippia alba (Verbenaceae) essential oils against Alternaria solani (Pleosporeaceae) isolates
Provedor de dados: 42
Autores: TOMAZONI,ELISA Z.; PANSERA,MÁRCIA R.; PAULETTI,GABRIEL F.; MOURA,SIDNEI; RIBEIRO,RUTE T.S.; SCHWAMBACH,JOSÉLI.
Several volatile natural compounds produced by plant secondary metabolism have been proven to present antimicrobial action, enabling their use in phytopathogen control. They also present low environmental impact when compared to conventional pesticides. Essential oils contain these compounds and can be found in several plant species, such as Lippia alba (Mill.) N.E. Brown (Verbenaceae). Essential oils of four chemotypes of L. alba, characterized by their major compounds, namely camphor, citral, linalool and camphor/1,8-cineole, were tested against the phytopathogen Alternaria solani Sorauer (Pleosporaceae), which causes early blight on tomatoes and is responsible for great economic losses regarding production. Essential oils antifungal action was tested in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citral; Early blight; Natural product; Phytopathogen.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300999

Pharmacological perspectives from Brazilian Salvia officinalis (Lamiaceae): antioxidant, and antitumor in mammalian cells
Provedor de dados: 42
Autores: GARCIA,CHARLENE S.C.; MENTI,CAROLINE; LAMBERT,ANA PAULA F.; BARCELLOS,THIAGO; MOURA,SIDNEI; CALLONI,CAROLINE; BRANCO,CÁTIA S.; SALVADOR,MIRIAN; ROESCH-ELY,MARIANA; HENRIQUES,JOÃO A.P.
ABSTRACT Salvia officinalis (Lamiaceae) has been used in south of Brazil as a diary homemade, in food condiment and tea-beverage used for the treatment of several disorders. The objective of this study was to characterize chemical compounds in the hydroalcoholic (ExtHS) and aqueous (ExtAS) extract from Salvia officinalis (L.) by gas chromatography-mass spectrometry (GC-MS) and by high-resolution electrospray ionization mass spectrometry (ESI-QTOF MS/MS), evaluate in vitro ability to scavenge the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH•) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), catalase (CAT-like) and superoxide dismutase (SOD-like) activity, moreover cytotoxic by MTT assay, alterations on cell morphology by giemsa and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Apoptosis; Cancer; Chemical compounds; Salvia officinalis (L.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100281

Biological Activity of Piper aduncum extracts on Anticarsia gemmatalis (Hübner) (Lepidoptera: Erebidae) and Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)
Provedor de dados: 42
Autores: LUCENA,DAIANE C.; BERTHOLDO-VARGAS,LUCIA R.; SILVA,WILSON C.; MACHADO,AARON F.; LOPES,TAMIRIS S.; MOURA,SIDNEI; BARROS,NEIVA M.
ABSTRACT Piper aduncum found naturally in the Amazon and southeastern Brazil, is known for its secondary metabolites that have activity on insects. Anticarsia gemmatalis and Spodoptera frugiperda are among the major insect pests associated with agricultural production. This research evaluated the biological activity of hexane, ethyl acetate, and ethanol extracts of P. aduncum leaves on mortality and duration of larval and pupal periods, as well as weight, width, and length of A. gemmatalis and S. frugiperda pupae. The mortality of A. gemmatalis larvae in trials with P. aduncum extracts were 93.3% (hexane) and 90% (ethyl acetate), estimating LC50 of 6.35 and 5.79 mg/mL, respectively. Mortality in S. frugiperda submitted to the hexane extract ranged from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fall armyworm; Velvetbean caterpillar; Pest management; Plant extracts.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401869

Biflorin: an o-naphthoquinone of clinical significance
Provedor de dados: 42
Autores: WISINTAINER,GABRIELLE G.N.S.; SIMÕES,EVELYNE R.B.; LEMOS,TELMA L.G.; MOURA,SIDNEI; SOUZA,LUCIANA G.S.; FONSECA,ALUISIO M.; MORAES,MANOEL ODORICO; PESSOA,CLAUDIA; ROESCH-ELY,MARIANA; HENRIQUES,JOÃO A.P.
Biflorin is an o-naphthoquinone with proven cytotoxic effects on tumor cells showing antimicrobial, antitumor and antimutagenic activities. Biflorin is an isolated compound taken from the roots of the plantCapraria biflora L. (Schrophulariaceae), indigenous of the West Indies and South America, which is located in temperate or tropical areas. This compound has shown to be strongly active against grampositive and alcohol-acid-resistant bacteria. It has been efficient in inhibiting the proliferation tumor cell lines CEM, HL-60, B16, HCT-8 and MCF-7. Recently, SK-Br3 cell line was treated with biflorin showing important cytotoxic effects. In this article, information related to the first structural characterization studies are presented, as well as the latest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological activity; Biflorin; Capraria biflora; Natural products.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401907