Fitoquímica e quimiossistemática de Euxylophora paraensis (Rutaceae)

Isidoro, Marsele Machado; Silva, Maria Fátima das Graças Fernandes da; Fernandes, João B.; Vieira, Paulo C.; Arruda, Alberto C.; Silva, Sebastião da Cruz

doi:10.1590/s0100-40422012001100004

Cited by 12 publications

(8 citation statements)

References 18 publications

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“…In addition, this species is monotypic, belonging to the Euxylophora genus, which only includes the Euxylophora paraensis Huber species (PIRANI, 2016). Its occurrence is limited to northern Brazil (ISIDORO et al, 2012), and it has high silvicultural and economic value and low population density (MESSINA, 2016).…”

Section: Use Of Wood Resources In the Easternmentioning

confidence: 99%

Growth ring analysis of Euxylophora paraensis through x-ray microdensitometry

Andrade

Garcia

Albernaz³

et al. 2017

Cienc. Rural

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Euxylophora paraensis Huber - Rutaceae, popularly known as yellow heart, is a species with a low-density population that has suffered intense exploitation in recent decades. This has led to its inclusion in the IBAMA list of endangered species. This study aimed to evaluate the existence of growth rings and their annuity in five trees of Euxylophora paraensis through the x-ray microdensitometry technique, as well as to compare them using the classical method. Application feasibility of this technique can be deepened through future, broader dendroecological studies, which may better elucidate the understanding of the species population dynamics and promote more sustainable uses. Wood disks were collected from the base of five 29-year-old trees from a planting site in the Curua-Una Experimental Station, located in Prainha, Pará State, Brazil. Samples were polished and sanded for the x-ray microdensitometric analysis. Values of minimum, average, and maximum density (0.581, 0.84, and 1.077gcm-3, respectively) were obtained. There was a significant difference in density between the studied trees. Growth rings boundaries, through densitometric pith-bark profile are demarcated by fibrous zones, with density variation between the early wood and late wood. This study concludes that the growth rings of the studied species are distinct and annual, validating the technique used.

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Section: Use Of Wood Resources In the Easternmentioning

confidence: 99%

Growth ring analysis of Euxylophora paraensis through x-ray microdensitometry

Andrade

Garcia

Albernaz³

et al. 2017

Cienc. Rural

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“…O resultado positivo de alcalóide corrobora com o estudo de Baetas et al (1999) para a M. flavida. Resultados positivos de alcalóide e flavonoide também foram encontrados em outras espécies da família Rutaceae como Euxylophora paraensis (ISIDORO et al, 2012) e Zanthoxylum rhoifolium (KRAUSE et al, 2013). Já GARCIA et al (2003), mencionam que os compostos secundários analisados neste estudo são bastante comuns no reino vegetal, detectando os quatro metabólitos em Morus alba.…”

Section: Análise Fitoquímicaunclassified

ESTRUTURA POPULACIONAL E ANÁLISE FITOQUÍMICA DE Metrodorea flavida K. Krause (RUTACEAE) EM DOIS FRAGMENTOS FLORESTAIS DO MUNICÍPIO DE ALTA FLORESTA, MATO GROSSO

Spletozer¹,

Lopes²,

Pereira³

et al. 2015

Enciclopédia Biosfera

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RESUMO Os fragmentos florestais apresentam-se cada vez mais importantes como representantes da vegetação nativa, sendo de grande relevância estudos que demonstrem a estrutura e os potenciais das espécies florestais. Assim, objetivou-se descrever a estrutura populacional de M. flavida em dois fragmentos florestais de Alta Floresta, e analisar qualitativamente a presença de metabólitos secundários. Para o levantamento estrutural foram implantadas 5 parcelas de 10 x100 m em cada fragmento, mensurando-se o diâmetro e a altura de todos os indivíduos com CAP ≥ 30 cm. A triagem fitoquímica foi realizada com reagentes específicos para as classes de taninos, alcalóides, flavonóides e saponinas. M. flavida apresentou densidade de 84 e 32 ind. ha-1 , nos fragmentos I e II, respectivamente, com indivíduos nas menores classes de diâmetro e classes intermediárias de altura. A distribuição espacial dos indivíduos foi regular para o fragmento I e aleatório para o fragmento II. Os testes fitoquímicos foram positivos para taninos, alcalóides e saponinas no fragmento I e II, e flavonóides apenas no fragmento II. A espécie apresentou elevado número de indivíduos jovens com caráter promissor para a medicina.

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“…Many of these species of Rutaceae produce a large variety of secondary chemical compounds that have great potential in relation to pharmacological activity. Among these, the most notable are the alkaloids, lignans, limonoids, coumarins, amides, flavonoids, terpenes and essential oils, which are found in different parts of the plant, such as the roots, stems and leaves (Isidoro et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Leaf anatomy and histochemistry of secretory structures of Zanthoxylum caribaeum Lam. (Rutaceae)

et al. 2020

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Rutaceae species, especially of the genus Zanthoxylum L., are known for possessing a well-diversified chemical composition with high potential for pharmacological activity. A variety of Zanthoxylum species are distributed throughout Brazil. This study aimed to characterize the leaf anatomy and identify the histochemical composition of the secretory material from the secretory structures of Z. caribaeum leaves. Leaves of Z. caribaeum were collected and processed for anatomical, histochemical and micromorphological characterization following standard methodologies. The leaves have an unstratified epidermis and glandular trichomes in epidermal depressions on the abaxial surface. Extrafloral nectaries were also observed on the abaxial surface. The leaf is hypostomatic and the stomata are anomocytic. The mesophyll is dorsiventral and has secretory cavities. The mesophyll cavities produce a secretion of lipidic nature and the cavities on the leaf margin produce a secretion of mixed nature, with neutral lipids and essences. In summary, our findings show that the leaves of Z. caribaeum have secretory structures like glandular trichomes that can function as extrafloral nectaries and cavities. The characterization of the leaf anatomy of Z. caribaeum can provide relevant data for future taxonomic studies of the genus.

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Fitoquímica e quimiossistemática de Euxylophora paraensis (Rutaceae)

Cited by 12 publications

References 18 publications

Growth ring analysis of Euxylophora paraensis through x-ray microdensitometry

Growth ring analysis of Euxylophora paraensis through x-ray microdensitometry

ESTRUTURA POPULACIONAL E ANÁLISE FITOQUÍMICA DE Metrodorea flavida K. Krause (RUTACEAE) EM DOIS FRAGMENTOS FLORESTAIS DO MUNICÍPIO DE ALTA FLORESTA, MATO GROSSO

Leaf anatomy and histochemistry of secretory structures of Zanthoxylum caribaeum Lam. (Rutaceae)

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