Environmental influence on the phenols and essential oils of Myrciaria cauliflora leaves
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Data
2010-05
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Resumo
Foliar contents of total phenols and tannins and the essential oil composition of Myrciaria
cauliflora populations cultivated in six sampling sites have shown the presence of four clusters
related to soil types and foliar nutrients. Cluster I included samples which originated from sandy
loam soil (S1) with the highest and lowest percentages of g-eudesmol (11.55%) and germacrene
D (20.48%), respectively, as well as high total phenol (136.68 mg g-1) and tannin (60.72 mg g-1)
contents. Cluster II, rich in elemol (4.61%), included all the samples cultivated from clay sand
loam soils (S2, S3, and S6), whereas clay soils S4 (cluster III) and S5 (cluster IV) had the highest
amounts of germacrene D (III: 27.20%; IV: 26.83%) and the lowest levels of elemol (2.12-2.55%),
total phenols (79.69 and 111.77 mg g-1), and tannins (34.04 and 44.51 mg g-1). The canonical
redundancy analysis revealed the relationship between chemical balances in the soil and leaf
nutrients in different clusters. Chemovariations may be environmentally determined.
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Myrciaria cauliflora, Essential oil, Phenol, Chemical variability, Environmental influence, Multivariate analysis
Citação
DUARTE, Alessandra R. et al. Environmental influence on the phenols and essential oils of Myrciaria cauliflora leaves. Journal of the Brazilian Chemical Society, Campinas, v. 21, n. 9, p. 1672-1680, May 2010.