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Authors
Advisor(s)
Abstract(s)
The genus Paeonia (Paeoniaceae) includes perennial plants distributed throughout the
northern hemisphere and some of these are used in traditional medicine and cultivated as
ornamental species. Paeonia broteri is endemic to Iberian Peninsula and the current paper is
the first report on a pharmacognostic survey on its roots, leaves and corresponding powders.
Using light and scanning electron microscopy, simple and compound polyhedral starch grains,
with a fissure-type hilum and no striae, are recorded in the root phelloderm cells and the
presence of idioblasts with druse-type calcium oxalate crystals, in addition to isolated stone
cells, are also common. Irregular and sinuous epidermal cells can be detected on both leaf
surfaces and anomocytic stomata, with an elliptical-rounded shape, are only on the abaxial
face. In leaves, druse-type calcium oxalate crystals appear along the vascular tissues. The
histochemical tests allowed the in situ localization of some chemical groups and the most
relevant detected were polyphenols and terpenoids.
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Pedagogical Context
Citation
Pereira J. & Teixeira G. 2022. Pharmacognostic survey on Paeonia broteri – an Iberian endemism. RA Journal of Applied Research 8: 897 - 902. https://doi.org/10.47191/rajar/v8i12.09