Óleos essenciais da Amazonia contendo linalol

Araujo, V. C. de; Corrêa, Guedes; Maia, José Guilherme S.; Silva, M. Leão Da; Gottlieb, Otto R.; Marx, M. C.; Magalhães, Mauro Taveira

doi:10.1590/1809-43921971013045

Cited by 24 publications

(14 citation statements)

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“…The leaf oil variation was previously observed by us in an A. duckei specimen 17 and it is connected with the plant phenology. The higher oil content occurs between November and May when the plant changes the old leaves.…”

Section: Resultssupporting

confidence: 57%

Plant sources of amazon rosewood oil

Maia¹,

Andrade²,

Couto³

et al. 2007

Quím. Nova

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Recebido em 29/11/06; aceito em 18/5/07; publicado na web em 5/10/07The aim of this study is to reevaluate the plant sources of the Amazon rosewood oil which have been named Aniba rosaeodora Ducke and Aniba duckei Kosterm. There is some disagreement on the exact botanical status of these species. Some Lauraceae specialists analyzing available material from both species concluded that there is no basis for regarding them as different. Based on our results we are confirming that the chemical composition of both species is quite different from that previously reported. So we are suggesting to bring back the previous botanical rosewood status as proposed by Adolph Ducke.

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Section: Resultssupporting

confidence: 57%

Plant sources of amazon rosewood oil

Maia¹,

Andrade²,

Couto³

et al. 2007

Quím. Nova

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“…Rosewood is important as a source of linalool, the main component of an essential oil found throughout plant (Araújo et al, 1971). In the world perfume market, linalool is extremely valuable (May & Barata, 2004;Santos et al, 2004).…”

Section: Study Speciesmentioning

confidence: 99%

Genetic diversity in rosewood saplings (Aniba rosaeodora ducke, Lauraceae): an ecological approach

2008

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This article takes an ecological approach to the genetic diversity of Rosewood (Aniba rosaeodora Ducke) in a central Amazonian terra firme forest north of Manaus. Planted Rosewood setting, under partial shaded canopy, were assessed in terms of fruiting production, frugivory, and seed dispersal. Using RAPD molecular analysis procedures, the influence of the spatial distribution of adult trees on the genetic diversity (polymorphism) of saplings was assessed with genetic samples from 34 reproductive trees and 60 saplings. The density and distribution patterns the reproductive trees did not modify the sapling's diversity (1.86%, AMOVA). Two types of adult tree dispersion were identified; i) clumped and ii) more widely dispersed. Polymorphism (77.5%) and gene flow were high between these. Although more sapling genetic variability in areas with a higher density of mature plants was not as high as expected, density did not affect the genetic diversity of samplings, indicating a high incidence of gene flow amongst trees. In planted Rosewood population (surrounded by low disturbed forest), fruiting trees experienced a high level of removal of seeds by toucans (Rhamphastidae), about of 50%. The high gene flow found among native trees suggested that toucans, promoting seed rain at short and long distances from maternal trees, actively contribute to the maintenance of genetic diversity within wild rosewood populations.Key words: Amazonian tree, RAPD, seed dispersal, gene flow, genetic diversity.Diversidade genética em plantas jovens de Pau-rosa (Aniba Rosaeodora Ducke, Lauraceae): uma abordagem ecológica resumo Dados genéticos e ecológicos foram obtidos do Pau-rosa (Aniba rosaeodora Ducke) em uma floresta de terra firme localizada ao norte de Manaus. Em um sistema de plantio composto de plantas sob sombreamento parcial, foram analisados dados de frugivoria, produção de frutos e dispersão. Numa população natural, com 34 plantas adultas e 60 jovens, foi analisada a influência da distribuição espacial das plantas adultas na diversidade genética (polimorfismo) das jovens utilizando o marcador molecular RAPD. O modelo de distribuição e densidade das plantas adultas não alterou a diversidade genética da progênie (1,86%; AMOVA). Tanto o polimorfismo (77,5%) quanto o fluxo gênico entre os dois subgrupos de plantas (dispersas e agrupadas) foram altos. Embora se esperasse que a diversidade genética fosse maior na progênie oriunda do grupo com maior densidade de plantas, isso não foi observado, indicando um alto fluxo gênico entre as adultas. No plantio, as árvores com frutos tiveram uma alta taxa de remoção de sementes por tucanos (Rhamphastidae), em torno de 50%. Estes resultados indicam que estes pássaros também têm um papel fundamental na dispersão de sementes em população naturais. De fato o alto fluxo gênico encontrado entre as plantas adultas em populações naturais sugere que estes animais promovem chuva de sementes a curtas e longas distâncias entre árvores reprodutivas, o que contribui com a manutenção da diversidade ...

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“…The effectiveness of C. cajucara at reducing lipid and glucose levels has been demonstrated in the laboratory by several authors (Farias et al, 1996(Farias et al, , 1997Costa et al, 1999;Grynberg et al, 1999;Hiruma-Lima et al, 1999b;Maciel et al, 2000;Silva et al, 2001aSilva et al, , 2001b. Croton cajucara has also been shown to contain high levels of linalool, an alcohol used in the perfume industry (Araújo et al, 1971), which has raised much interest in this species among researchers in recent years (Moreno et al, 2009). Although Müller (1873) implied a close relationship between C. cajucara, C. heterocalyx Baill., and C. sphaerogynus Baill.…”

Section: Introductionmentioning

confidence: 99%

Molecular phylogenetics and character evolution of the “sacaca” clade: Novel relationships of Croton section Cleodora (Euphorbiaceae)

Caruzo

Cordeiro

et al. 2011

Molecular Phylogenetics and Evolution

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a b s t r a c tPhylogenetic relationships of Croton section Cleodora (Klotzsch) Baill. were evaluated using the nuclear ribosomal ITS and the chloroplast trnL-F and trnH-psbA regions. Our results show a strongly supported clade containing most previously recognized section Cleodora species, plus some other species morphologically similar to them. Two morphological synapomorphies that support section Cleodora as a clade include pistillate flowers in which the sepals overlap to some degree, and styles that are connate at the base to varying degrees. The evolution of vegetative and floral characters that have previously been relied on for taxonomic decisions within this group are evaluated in light of the phylogenetic hypotheses. Within section Cleodora there are two well-supported clades, which are proposed here as subsections (subsection Sphaerogyni and subsection Spruceani). The resulting phylogenetic hypothesis identifies the closest relatives of the medicinally important and essential oil-rich Croton cajucara Benth. as candidates for future screening in phytochemical and pharmacological studies.

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Óleos essenciais da Amazonia contendo linalol

Cited by 24 publications

References 0 publications

Plant sources of amazon rosewood oil

Plant sources of amazon rosewood oil

Genetic diversity in rosewood saplings (Aniba rosaeodora ducke, Lauraceae): an ecological approach

Molecular phylogenetics and character evolution of the “sacaca” clade: Novel relationships of Croton section Cleodora (Euphorbiaceae)

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