| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Alimentos e Territórios. |
|
Data corrente: |
17/11/2023 |
|
Data da última atualização: |
17/11/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PINHEIRO, J. C. A.; SOUZA, C. E. S. DE; RIBEIRO, D. A.; SILVA, A. DE A.; SILVA, V. B. DA; SANTOS, A. T. L. DOS; FONSECA, V. J. A.; MACÊDO, D. G. DE; CRUZ, R. P. DA; BEZERRA, J. W. A.; MACHADO, A. J. T.; FREITAS, T. S. DE; BRITO, E. S. de; RIBEIRO, P. R. V.; COSTA, J. G. M. DA; COUTINHO, H. D. M.; KOWALSKA, G.; ROWINSKI, R.; KOWALSKI, R.; BRAGA, M. F. B. M. |
|
Afiliação: |
JACQUELINE COSMO ANDRADE-PINHEIRO, Regional University of Cariri; CELESTINA ELBA SOBRAL DE SOUZA, Regional University of Cariri; DAIANY ALVES RIBEIRO, Regional University of Cariri; ANDRESSA DE ALENCAR SILVA, Regional University of Cariri; VIVIANE BEZERRA DA SILVA, Federal University of Pernambuco; ANTONIA THASSYA LUCAS DOS SANTOS, Regional University of Cariri; VICTOR JUNO ALENCAR FONSECA, Regional University of Cariri; DELMACIA GONÇALVES DE MACÊDO, Regional University of Cariri; RAFAEL PEREIRA DA CRUZ, Regional University of Cariri; JOSÉ WEVERTON ALMEIDA-BEZERRA, Regional University of Cariri; ANTONIO JÚDSON TARGINO MACHADO, Regional University of Cariri; THIAGO SAMPAIO DE FREITAS, Regional University of Cariri; EDY SOUSA DE BRITO, CNAT; PAULO RICELI VASCONCELOS RIBEIRO, CNPAT; JOSÉ GALBERTO MARTINS DA COSTA, Regional University of Cariri; HENRIQUE DOUGLAS MELO COUTINHO, Regional University of Cariri; GRAZYNA KOWALSKA, University of Life Sciences in Lublin; RAFAL ROWINSKI, University of Life Sciences in Lublin; RADOSLAW KOWALSKI, University of Life Sciences in Lublin; MARIA FLAVIANA BEZERRA MORAIS-BRAGA, Regional University of Cariri. |
|
Título: |
LC-MS analysis and antifungal activity of Turnera subulata Sm. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Plants, v. 12, n. 415, 2023. |
|
Páginas: |
12 p. |
|
DOI: |
10.3390/plants12020415 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Fungi of the Candida genus are responsible for invasive candidiasis, which affects people all over the world and has high mortality rates. This is due to their virulence factors, which give them great resistance and pathogenicity. In addition, the emergence of multidrug-resistant strains makes it difficult to treat these infections. In this way, natural products have emerged as an alternative to standard drugs, where plants known for their medicinal properties such as Turnera subulata become attractive to research. The present work aimed to analyze the ethanol extract of Turnera subulata leaves against standard strains of Candida albicans, Candida krusei and Candida tropicalis using broth microdilution techniques. The identification of the compounds in T. subulata leaves by LC-MS revealed the presence of a wide variety of substances such as carboxylic acids and terpenes, with flavonoids and fatty acids being more evident. The antifungal assays showed that the extract was not able to inhibit the growth of the tested strains at concentrations with a clinical relevance. However, at higher concentrations, it was able to inhibit the fungal dimorphism of C. albicans and C. tropicalis. It is possible that the T. subulata extract has potential as an inhibitor of fungal virulence factors without affecting the cell viability. Further research should be carried out in order to assess its inhibitory potential for other fungal virulence factors. |
|
Palavras-Chave: |
Antifungal; Antifúngico; Extract; Extrair; Levedura; Virulência. |
|
Thesaurus Nal: |
Antifungal agents; Extracts; Virulence; Yeasts. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158504/1/LC-MS-Analysis.pdf
|
|
Marc: |
LEADER 02755naa a2200493 a 4500
001 2158504
005 2023-11-17
008 2023 bl uuuu u00u1 u #d
024 7 $a10.3390/plants12020415$2DOI
100 1 $aPINHEIRO, J. C. A.
245 $aLC-MS analysis and antifungal activity of Turnera subulata Sm.$h[electronic resource]
260 $c2023
300 $a12 p.
520 $aFungi of the Candida genus are responsible for invasive candidiasis, which affects people all over the world and has high mortality rates. This is due to their virulence factors, which give them great resistance and pathogenicity. In addition, the emergence of multidrug-resistant strains makes it difficult to treat these infections. In this way, natural products have emerged as an alternative to standard drugs, where plants known for their medicinal properties such as Turnera subulata become attractive to research. The present work aimed to analyze the ethanol extract of Turnera subulata leaves against standard strains of Candida albicans, Candida krusei and Candida tropicalis using broth microdilution techniques. The identification of the compounds in T. subulata leaves by LC-MS revealed the presence of a wide variety of substances such as carboxylic acids and terpenes, with flavonoids and fatty acids being more evident. The antifungal assays showed that the extract was not able to inhibit the growth of the tested strains at concentrations with a clinical relevance. However, at higher concentrations, it was able to inhibit the fungal dimorphism of C. albicans and C. tropicalis. It is possible that the T. subulata extract has potential as an inhibitor of fungal virulence factors without affecting the cell viability. Further research should be carried out in order to assess its inhibitory potential for other fungal virulence factors.
650 $aAntifungal agents
650 $aExtracts
650 $aVirulence
650 $aYeasts
653 $aAntifungal
653 $aAntifúngico
653 $aExtract
653 $aExtrair
653 $aLevedura
653 $aVirulência
700 1 $aSOUZA, C. E. S. DE
700 1 $aRIBEIRO, D. A.
700 1 $aSILVA, A. DE A.
700 1 $aSILVA, V. B. DA
700 1 $aSANTOS, A. T. L. DOS
700 1 $aFONSECA, V. J. A.
700 1 $aMACÊDO, D. G. DE
700 1 $aCRUZ, R. P. DA
700 1 $aBEZERRA, J. W. A.
700 1 $aMACHADO, A. J. T.
700 1 $aFREITAS, T. S. DE
700 1 $aBRITO, E. S. de
700 1 $aRIBEIRO, P. R. V.
700 1 $aCOSTA, J. G. M. DA
700 1 $aCOUTINHO, H. D. M.
700 1 $aKOWALSKA, G.
700 1 $aROWINSKI, R.
700 1 $aKOWALSKI, R.
700 1 $aBRAGA, M. F. B. M.
773 $tPlants$gv. 12, n. 415, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Alimentos e Territórios (CNAT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
19/12/2018 |
|
Data da última atualização: |
24/01/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
AUAD, A. M.; RESENDE, T. T. de. |
|
Afiliação: |
ALEXANDER MACHADO AUAD, CNPGL; TIAGO TEIXEIRA DE RESENDE, CNPGL. |
|
Título: |
Use of chemical inducers as a resistance trigger in Brachiaria grasses and sugarcane. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Florida Entomologist, v. 101, n. 1, p. 119-124, 2018. |
|
DOI: |
10.1653/024.101.0121 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract Chemical inducers have relevant roles in activating the defense responses of plants to insects. The present research examines the defense mechanisms of Brachiaria (Poaceae) grasses and sugarcane cultivars exposed to exogenous of chemical inducers with and without injury due to Mahanarva spectabilis (Distant) (Hemiptera: Cercopidae). Plants were subjected to herbivory by spittlebug nymphs and to 3 chemical inducers: salicylic acid, silicic acid, and nitric oxide. Dry matter was calculated at 15 d after induction, and extraction and quantification of phenolic compounds were performed. The phenolic content and percentage of dry matter of the plants was evaluated by analysis of variance, and means were compared by the Scott-Knott test (P < 0.005). Changes in dry matter were assessed with regard to interactions between inducers and Brachiaria roots and sugarcane shoots. Salicylic acid, silicic acid, and nitric oxide, as well as attack by M. spectabilis, triggered alterations in phenolic contents. The highest and lowest concentrations of phenolic compounds were found in the standard cultivar susceptible (cv. Basilik) and resistant to the insect pest (cv. Marandu), respectively. However, the results showed that inducers failed to impact the defense mechanism of Brachiaria cultivars and that assessment of total phenolic compounds is not the most adequate approach for measuring resistance in these cultivars. In sugarcane, inducers did not appear to act on defense mechanisms, though the resistant cultivar did exhibit a greater phenolic content. Hence, the use of the above chemical inducers is not useful for triggering resistance in Bracharia and sugarcane. MenosAbstract Chemical inducers have relevant roles in activating the defense responses of plants to insects. The present research examines the defense mechanisms of Brachiaria (Poaceae) grasses and sugarcane cultivars exposed to exogenous of chemical inducers with and without injury due to Mahanarva spectabilis (Distant) (Hemiptera: Cercopidae). Plants were subjected to herbivory by spittlebug nymphs and to 3 chemical inducers: salicylic acid, silicic acid, and nitric oxide. Dry matter was calculated at 15 d after induction, and extraction and quantification of phenolic compounds were performed. The phenolic content and percentage of dry matter of the plants was evaluated by analysis of variance, and means were compared by the Scott-Knott test (P < 0.005). Changes in dry matter were assessed with regard to interactions between inducers and Brachiaria roots and sugarcane shoots. Salicylic acid, silicic acid, and nitric oxide, as well as attack by M. spectabilis, triggered alterations in phenolic contents. The highest and lowest concentrations of phenolic compounds were found in the standard cultivar susceptible (cv. Basilik) and resistant to the insect pest (cv. Marandu), respectively. However, the results showed that inducers failed to impact the defense mechanism of Brachiaria cultivars and that assessment of total phenolic compounds is not the most adequate approach for measuring resistance in these cultivars. In sugarcane, inducers did not appear to act on defense mechanisms,... Mostrar Tudo |
|
Palavras-Chave: |
Herbivory. |
|
Thesaurus NAL: |
Forage; Induced resistance; Phenolic compounds. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188928/1/Artigo-Florida-Entomol-Alexander-Use.pdf
|
|
Marc: |
LEADER 02263naa a2200193 a 4500
001 2102077
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1653/024.101.0121$2DOI
100 1 $aAUAD, A. M.
245 $aUse of chemical inducers as a resistance trigger in Brachiaria grasses and sugarcane.$h[electronic resource]
260 $c2018
520 $aAbstract Chemical inducers have relevant roles in activating the defense responses of plants to insects. The present research examines the defense mechanisms of Brachiaria (Poaceae) grasses and sugarcane cultivars exposed to exogenous of chemical inducers with and without injury due to Mahanarva spectabilis (Distant) (Hemiptera: Cercopidae). Plants were subjected to herbivory by spittlebug nymphs and to 3 chemical inducers: salicylic acid, silicic acid, and nitric oxide. Dry matter was calculated at 15 d after induction, and extraction and quantification of phenolic compounds were performed. The phenolic content and percentage of dry matter of the plants was evaluated by analysis of variance, and means were compared by the Scott-Knott test (P < 0.005). Changes in dry matter were assessed with regard to interactions between inducers and Brachiaria roots and sugarcane shoots. Salicylic acid, silicic acid, and nitric oxide, as well as attack by M. spectabilis, triggered alterations in phenolic contents. The highest and lowest concentrations of phenolic compounds were found in the standard cultivar susceptible (cv. Basilik) and resistant to the insect pest (cv. Marandu), respectively. However, the results showed that inducers failed to impact the defense mechanism of Brachiaria cultivars and that assessment of total phenolic compounds is not the most adequate approach for measuring resistance in these cultivars. In sugarcane, inducers did not appear to act on defense mechanisms, though the resistant cultivar did exhibit a greater phenolic content. Hence, the use of the above chemical inducers is not useful for triggering resistance in Bracharia and sugarcane.
650 $aForage
650 $aInduced resistance
650 $aPhenolic compounds
653 $aHerbivory
700 1 $aRESENDE, T. T. de
773 $tFlorida Entomologist$gv. 101, n. 1, p. 119-124, 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
