2015
DOI: 10.1590/1809-4392201500011
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Seasonal effects and antifungal activity from bark chemical constituents of Sterculia apetala (Malvaceae) at Pantanal of Miranda, Mato Grosso do Sul, Brazil

Abstract: In the Southern Pantanal, the hyacinth macaw (Anodorhynchus hyacinthinus), an endangered species, often chooses the manduvi tree (Sterculia apetala) as a nesting site, because of its physical properties. In addition, the chemical composition of the wood may also contribute to a nesting selection by the hyacinth macaws. The objective of this study was to determine the main chemical components of S. apetala bark for two seasons, and evaluate its fungicidal potential. Bark samples from S. apetala trees with and w… Show more

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Cited by 35 publications
(25 citation statements)
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“…For the results of the assays, the alterations in the colour or precipitation were observed when compared with the control, following the method of Fontoura et al (2015). Strongly positive (+++= 100%), moderately positive (++= 50%), weakly positive (+= 25%), and partially positive (±= 10%).…”
Section: Phytochemical Analysismentioning
confidence: 99%
“…For the results of the assays, the alterations in the colour or precipitation were observed when compared with the control, following the method of Fontoura et al (2015). Strongly positive (+++= 100%), moderately positive (++= 50%), weakly positive (+= 25%), and partially positive (±= 10%).…”
Section: Phytochemical Analysismentioning
confidence: 99%
“…Os resultados, comparados com o grupo controle (extrato etanólico) e também entre si, para visualizar alteração de cor ou precipitação, de acordo com metodologia utilizada por Costa (2002). As alterações na cor foram classificados como, parcial (±), baixo (+), moderado (++), alta intensidade (+++) e, negativo (-) e os testes com formação de precipitado (compostos fenólicos e taninos), realizados em tubos graduados e considerados como, parcial (< 0,2 cm), baixa (0,2-0,5 cm), moderada (0,5-0,7 cm) e alta intensidade (0,7-1,0 cm), segundo Fontoura et al (2015).…”
Section: Análise Fitoquímicaunclassified
“…The analyses were performed in three replicates and results were compared and contrasted observing color changing and precipitate formation (FONTOURA et al, 2015).…”
Section: Methodsmentioning
confidence: 99%