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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
13/09/2021 |
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Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OCAMPOS, F. M. M.; SOUZA, A. J. B. de; ANTAR, G. M.; WOUTERS, F. C.; COLNAGO, L. A. |
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Afiliação: |
LUIZ ALBERTO COLNAGO, CNPDIA. |
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Título: |
Phytotoxicity of Schiekia timida seed extracts, a mixture of phenylphenalenones. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Molecules, v. 26, 4197. 2021. |
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Páginas: |
1 - 13 |
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ISSN: |
1433-1373 |
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Idioma: |
Inglês |
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Conteúdo: |
: Phenylphenalenones, metabolites found in Schiekia timida (Haemodoraceae), are a class of specialized metabolites with many biological activities, being phytoalexins in banana plants. In the constant search to solve the problem of glyphosate and to avoid resistance to commercial herbicides, this work aimed to investigate the phytotoxic effect of the methanolic extract of S. timida seeds. The chemical composition of the seed extract was directly investigated by NMR and UPLC-QToF MS and the pre- and post-emergence phytotoxic effect on a eudicotyledonous model (Lactuca sativa) and a monocotyledonous model (Allium cepa) was evaluated through germination and seedling growth tests. Three concentrations of the extract (0.25, 0.50, and 1.00 mg/mL) were prepared, and four replicates for each of them were analyzed. Three major phenylphenalenones were identified by NMR spectroscopy: 4-hydroxy-anigorufone, methoxyanigorufone, and anigorufone, two of those reported for the first time in S. timida. The presence of seven other phenylphenalenones was suggested by the LC-MS analyses. The phenylphenalenone mixture did not affect the germination rate, but impaired radicle and hypocotyl growth on both models. The effect in the monocotyledonous model was statistically similar to glyphosate in the lowest concentration (0.25 mg/mL). Therefore, although more research on this topic is required to probe this first report, this investigation suggests for the first time that phenylphenalenone compounds may be post-emergence herbicides Menos: Phenylphenalenones, metabolites found in Schiekia timida (Haemodoraceae), are a class of specialized metabolites with many biological activities, being phytoalexins in banana plants. In the constant search to solve the problem of glyphosate and to avoid resistance to commercial herbicides, this work aimed to investigate the phytotoxic effect of the methanolic extract of S. timida seeds. The chemical composition of the seed extract was directly investigated by NMR and UPLC-QToF MS and the pre- and post-emergence phytotoxic effect on a eudicotyledonous model (Lactuca sativa) and a monocotyledonous model (Allium cepa) was evaluated through germination and seedling growth tests. Three concentrations of the extract (0.25, 0.50, and 1.00 mg/mL) were prepared, and four replicates for each of them were analyzed. Three major phenylphenalenones were identified by NMR spectroscopy: 4-hydroxy-anigorufone, methoxyanigorufone, and anigorufone, two of those reported for the first time in S. timida. The presence of seven other phenylphenalenones was suggested by the LC-MS analyses. The phenylphenalenone mixture did not affect the germination rate, but impaired radicle and hypocotyl growth on both models. The effect in the monocotyledonous model was statistically similar to glyphosate in the lowest concentration (0.25 mg/mL). Therefore, although more research on this topic is required to probe this first report, this investigation suggests for the first time that phenylphenalenone compound... Mostrar Tudo |
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Palavras-Chave: |
Phenylphenalenones; Schiekia timida; UPLC-HRMS. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02161naa a2200229 a 4500
001 2134309
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a1433-1373
100 1 $aOCAMPOS, F. M. M.
245 $aPhytotoxicity of Schiekia timida seed extracts, a mixture of phenylphenalenones.$h[electronic resource]
260 $c2021
300 $a1 - 13
520 $a: Phenylphenalenones, metabolites found in Schiekia timida (Haemodoraceae), are a class of specialized metabolites with many biological activities, being phytoalexins in banana plants. In the constant search to solve the problem of glyphosate and to avoid resistance to commercial herbicides, this work aimed to investigate the phytotoxic effect of the methanolic extract of S. timida seeds. The chemical composition of the seed extract was directly investigated by NMR and UPLC-QToF MS and the pre- and post-emergence phytotoxic effect on a eudicotyledonous model (Lactuca sativa) and a monocotyledonous model (Allium cepa) was evaluated through germination and seedling growth tests. Three concentrations of the extract (0.25, 0.50, and 1.00 mg/mL) were prepared, and four replicates for each of them were analyzed. Three major phenylphenalenones were identified by NMR spectroscopy: 4-hydroxy-anigorufone, methoxyanigorufone, and anigorufone, two of those reported for the first time in S. timida. The presence of seven other phenylphenalenones was suggested by the LC-MS analyses. The phenylphenalenone mixture did not affect the germination rate, but impaired radicle and hypocotyl growth on both models. The effect in the monocotyledonous model was statistically similar to glyphosate in the lowest concentration (0.25 mg/mL). Therefore, although more research on this topic is required to probe this first report, this investigation suggests for the first time that phenylphenalenone compounds may be post-emergence herbicides
653 $aPhenylphenalenones
653 $aSchiekia timida
653 $aUPLC-HRMS
700 1 $aSOUZA, A. J. B. de
700 1 $aANTAR, G. M.
700 1 $aWOUTERS, F. C.
700 1 $aCOLNAGO, L. A.
773 $tMolecules$gv. 26, 4197. 2021.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Gado de Leite. |
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Data corrente: |
30/11/2022 |
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Data da última atualização: |
05/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PEREIRA, M. C.; ANHOLETO, L. A.; KASA, G. G.; CASTRO, K. N. de C.; CANUTO, K. M.; SOUZA, A. S. de Q.; CAMARGO-MATHIAS, M. I. |
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Afiliação: |
MELISSA CAROLINA PEREIRA, Universidade Estadual Paulista Júlio de Mesquita Filho; LUIS ADRIANO ANHOLETO; GIOVANNA GENNARI KASA, Universidade Estadual Paulista Júlio de Mesquita Filho; KARINA NEOOB DE CARVALHO CASTRO, CNPGL; KIRLEY MARQUES CANUTO, CNPAT; ANA SHEILA DE QUEIROZ SOUZA; MARIA IZABEL CAMARGO-MATHIAS, Universidade Estadual Paulista Júlio de Mesquita Filho. |
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Título: |
Efficacy of essential oils of Egletes viscosa and Lippia schaueriana on the reproductive biology of Rhipicephalus sanguineus sensu lato engorged females. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Experimental Parasitology, v. 244, 108423, 2023. |
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DOI: |
https://doi.org/10.1016/j.exppara.2022.108423 |
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Idioma: |
Inglês |
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Notas: |
Publicado online em 17 nov. 2022. |
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Conteúdo: |
The study analyzed the chemical composition and the acaricide effect of Egletes viscosa Less (macela-da-terra) and Lippia schaueriana Mart. (lipia-da-serra) essential oils (EOs) on Rhipicephalus sanguineus s. l. (Acari: Ixodidae) engorged females. The chemical analysis (GC-MS and GC-FID) identified 27 components in E. viscosa EO and 18 in L. schaueriana EO, which comprise more than 98% of its constituents. The effects of the oils on the reproductive biology of R. sanguineus ticks were assessed by adult immersion test. Both EOs significantly reduced (p < 0.05) the egg production index when the females were exposed to 25 and 50 mg/mL, also affecting the egg viability. During the laying process, the eggs produced by the females exposed to the EO showed several morphological alterations such as dehydrated, darkened, and disaggregated, and these alterations were more severe as the concentrations increased. The mortality percentages were 58.9%, 70.8% and 92.7% when the ticks were exposed to 12.5, 25 and 50 mg/mL of E. viscosa oil, respectively. In the same concentrations, the efficacy of L. schaueriana was 39.3%, 53.4%, and 84.6%. Therefore, it can be concluded that the essential oils of E. viscosa and L. schaueriana have acaricidal effect in females of R. sanguineus s.l ticks. |
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Thesagro: |
Acaricida; Bovino; Carrapato. |
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Thesaurus NAL: |
Acaricides; Parasites; Ticks. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02210naa a2200289 a 4500
001 2149017
005 2022-12-05
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.exppara.2022.108423$2DOI
100 1 $aPEREIRA, M. C.
245 $aEfficacy of essential oils of Egletes viscosa and Lippia schaueriana on the reproductive biology of Rhipicephalus sanguineus sensu lato engorged females.$h[electronic resource]
260 $c2023
500 $aPublicado online em 17 nov. 2022.
520 $aThe study analyzed the chemical composition and the acaricide effect of Egletes viscosa Less (macela-da-terra) and Lippia schaueriana Mart. (lipia-da-serra) essential oils (EOs) on Rhipicephalus sanguineus s. l. (Acari: Ixodidae) engorged females. The chemical analysis (GC-MS and GC-FID) identified 27 components in E. viscosa EO and 18 in L. schaueriana EO, which comprise more than 98% of its constituents. The effects of the oils on the reproductive biology of R. sanguineus ticks were assessed by adult immersion test. Both EOs significantly reduced (p < 0.05) the egg production index when the females were exposed to 25 and 50 mg/mL, also affecting the egg viability. During the laying process, the eggs produced by the females exposed to the EO showed several morphological alterations such as dehydrated, darkened, and disaggregated, and these alterations were more severe as the concentrations increased. The mortality percentages were 58.9%, 70.8% and 92.7% when the ticks were exposed to 12.5, 25 and 50 mg/mL of E. viscosa oil, respectively. In the same concentrations, the efficacy of L. schaueriana was 39.3%, 53.4%, and 84.6%. Therefore, it can be concluded that the essential oils of E. viscosa and L. schaueriana have acaricidal effect in females of R. sanguineus s.l ticks.
650 $aAcaricides
650 $aParasites
650 $aTicks
650 $aAcaricida
650 $aBovino
650 $aCarrapato
700 1 $aANHOLETO, L. A.
700 1 $aKASA, G. G.
700 1 $aCASTRO, K. N. de C.
700 1 $aCANUTO, K. M.
700 1 $aSOUZA, A. S. de Q.
700 1 $aCAMARGO-MATHIAS, M. I.
773 $tExperimental Parasitology$gv. 244, 108423, 2023.
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