Flórula Do Morro Dos Perdidos, Serra De Araçatuba, Estado Do Paraná, Brasil:

Salvador, Gisele Silvestre; Cervi, Armando Carlos; Santos, Élide Pereira dos

doi:10.7213/reb.v27i61.21932

Cited by 3 publications

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“…Ouratea Alb. genus is the largest within the Ochnaceae family with approximately 120 species [ 1 ]. Plants in this family are known to be rich in flavonoids and biflavonoids.…”

Section: Introductionmentioning

confidence: 99%

Flavonoids and Other Compounds from Ouratea ferruginea (Ochnaceae) as Anticancer and Chemopreventive Agents

et al. 2012

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The chemical study of the extracts from leaves and stems of Ouratea ferruginea allowed the identification of a new isoflavone, 5-hydroxy-7,3′4′5′-tetramethoxyisoflavone, and twenty two known compounds, including friedelin, 3β-friedelinol, lupeone, a mixture of sitosterol, stigmasterol and campesterol, sitosteryl- and stigmasteryl-3-O-β-D-glucopyranosides, 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 5,4′-dihydroxy-7,3′-di-methoxyisoflavone (7,3′-di-O-methylorobol), 5,7,4′-trihydroxy-3′,5′-dimethoxyisoflavone (piscigenin), 2R,3R-epicatechin, syringic acid, 2,6-dimethoxybenzoquinone, 2,6-dimethoxyhydroquinone, syringic and ferulic aldehyde, a mixture of vanillic acid, 1-hydroxy-2-methoxy-4-(1E-3-hydroxy-1-propenyl)-benzene and 3,5-dimethoxy-4-hydroxy-dihydrocinamaldehyde, besides amenthoflavone and 7-O-methylamenthoflavone (sequoiaflavone) which are considered as chemotaxonomic markers of Ouratea. The structures were identified by IR, 1H- and 13C-NMR and GC-MS, HPLC-MS, besides comparison with literature data. The inhibitory effects of 5,4′-dihydroxy-7,5′,3′-trimethoxyisoflavone, 7,3′-di-O-methylorobol, piscigenin and 7-O-methylamenthoflavone on cytochrome P450-dependent 7-ethoxycoumarin O-deethylase (ECOD) and glutathione S-transferase (GST) were evaluated in vitro. The 5,4′-dihydroxy-7,5′,3′-trimethoxy-isoflavone was the best inhibitor, inhibiting almost 75% of GST activity. Sequoiaflavone was the most potent inhibitor, inhibiting ECOD assay in 75%. These activities allow us to consider both these flavonoids as potential anticancer and chemopreventive agents.

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“…Ouratea Alb. genus is the largest within the Ochnaceae family with approximately 120 species [ 1 ]. Plants in this family are known to be rich in flavonoids and biflavonoids.…”

Section: Introductionmentioning

confidence: 99%

Flavonoids and Other Compounds from Ouratea ferruginea (Ochnaceae) as Anticancer and Chemopreventive Agents

et al. 2012

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“…He believed that they might still occur in the region of Guaraqueçaba, because there could be found the largest expanses of wellconserved forest in the state. Th is idea was subsequently reinforced by Lange and Jablonski (1986) and confi rmed by Martuscelli et al (1994). Koehler et al (2002) reported on a new locality for the occurrence of B. arachnoides in the municipality of Castro, Paraná; a region with very few remaining patches of intact forest.…”

Section: Introductionmentioning

confidence: 89%

The southern muriqui, <i>Brachyteles arachnoides</i>, in the state of Paraná: current distribution, ecology, and the basis for a conservation strategy

Koehler,

Pereira,

Nicola

et al. 2005

Neotrop. Primates

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Primatologists have suspected the existence of remnant populations of the southern muriqui, Brachyteles arachnoides (É. Geoffroy, 1806), in the state of Paraná since the early 1970s. Only in 2002, however, was this confirmed, with the discovery of a group in the upper Rio Ribeira valley. Here we report on some observations of this group, which totals 23 individuals living in a tiny remnant of the primary dense broadleaf forest that formerly extended in a continuous belt into Paraná’s first planalto along the valleys of the rios Ribeira and Açungui. We also discuss possibilities for the occurrence of muriquis elsewhere, and our ongoing efforts for the conservation of this threatened species in the state of Paraná.

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Lauraceae no Morro dos Perdidos (Floresta Atlântica), Paraná, Brasil

2009

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RESUMO O Morro dos Perdidos está localizado no município de Guaratuba, estado do Paraná (25º45'-25º50'S e 49º03'-49º06'O), abrange uma área de 1440 hectares de Floresta Ombrófila Densa, com altitudes entre 767 a 1439 m. Na área, a família Lauraceae está representada por 15 espécies: Cinnamomum hatschbachii; Cryptocarya aschersoniana; Endlicheria paniculata; Nectandra puberula; Ocotea bicolor; O. catharinensis; O. elegans; O. nunesiana; O. odorifera; O. porosa; O. pulchella; O. tristis; O. vaccinioides; Ocotea sp e Persea willdenovii. São apresentados chave, descrições, ilustrações e comentários sobre as espécies.

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Flórula Do Morro Dos Perdidos, Serra De Araçatuba, Estado Do Paraná, Brasil:

Cited by 3 publications

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Flavonoids and Other Compounds from Ouratea ferruginea (Ochnaceae) as Anticancer and Chemopreventive Agents

Flavonoids and Other Compounds from Ouratea ferruginea (Ochnaceae) as Anticancer and Chemopreventive Agents

The southern muriqui, <i>Brachyteles arachnoides</i>, in the state of Paraná: current distribution, ecology, and the basis for a conservation strategy

Lauraceae no Morro dos Perdidos (Floresta Atlântica), Paraná, Brasil

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