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	Provedor de dados Acta Botanica (2) Autor Almeida,Luiz Fernando Rolim de (2) Bertholdi,Angelo Albano da Silva (1) Costa,Vladimir Eliodoro (1) Dokkedal,Anne Ligia (1) Franco,Danilo Miralha (1) Neto,José de Sousa Lima (1) Rodrigues,Angélica Lino (1) Saldanha,Luiz Leonardo (1) Santos,Lourdes Campaner dos (1) Mais... Palavra-chave Carbon assimilation (1) Carbon isotopic composition (1) Fabaceae (1) Flavonoids (1) HPLC-PAD-ESI-MS (1) Kaempferol-3-O-α-rhamnoside (1) Lipids (1) Quercetin-3-O-α-rhamnoside (1) Root growth (1) Soluble sugars (1) Water deficit (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2016 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Seasonal variation in allelopathic potential of the leaves of Copaifera langsdorffii Desf. Acta Botanica Franco,Danilo Miralha; Saldanha,Luiz Leonardo; Neto,José de Sousa Lima; Santos,Lourdes Campaner dos; Dokkedal,Anne Ligia; Almeida,Luiz Fernando Rolim de. ABSTRACT The deciduous plant Copaifera langsdorffii contains important medicinal compounds which may also be allelopathic and inhibitory to plant growth. The species is endemic to the Brazilian Cerrado where there is pronounced climatic seasonality. In this study we demonstrate the allelopathic capacity of extracts from the leaves of C. langsdorffii and pre-purified fractions of the extract. Analysis by HPLC-PAD-ESI-MS confirmed the presence of quercetin-3-O-α-rhamnoside and kaempferol-3-O-α-rhamnoside as major components, as well as phenolic acid derivatives of gallic acid. The extracts from samples collected during the wet season were rich in flavonoids and reduced the seed germination rate, root emergence time, and root growth of Sorghum bicolor... Tipo: Info:eu-repo/semantics/article Palavras-chave: Fabaceae; Flavonoids; HPLC-PAD-ESI-MS; Kaempferol-3-O-α-rhamnoside; Quercetin-3-O-α-rhamnoside; Root growth. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200157 Water deficit modifies the carbon isotopic composition of lipids, soluble sugars and leaves of Copaifera langsdorffii Desf. (Fabaceae) Acta Botanica Bertholdi,Angelo Albano da Silva; Costa,Vladimir Eliodoro; Rodrigues,Angélica Lino; Almeida,Luiz Fernando Rolim de. ABSTRACT Water deficit is most frequent in forest physiognomies subjected to climate change. As a consequence, several tree species alter tissue water potential, gas exchange and production of carbon compounds to overcome damage caused by water deficiency. The working hypothesis, that a reduction in gas exchange by plants experiencing water deficit will affect the composition of carbon compounds in soluble sugars, lipids and vegetative structures, was tested on Copaifera langsdorffii. Stomatal conductance, leaf water potential, and CO2 assimilation rate declined after a period of water deficit. After rehydration, leaf water potential and leaf gas exchange did not recover completely. Water deficit resulted in 13C enrichment in leaves, soluble sugars and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbon assimilation; Carbon isotopic composition; Lipids; Soluble sugars; Water deficit. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100080 Registros recuperados: 2 Primeira ... 1 ... Última

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