Artigo
Comparative bark anatomy of root and stem in Styrax camporum (Styracaceae)
Fecha
2005-01-01Registro en:
Iawa Journal. Leiden: Int Associação Wood Anatomists, v. 26, n. 4, p. 477-487, 2005.
0928-1541
WOS:000233861700006
2653496390637757
Autor
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Resumen
The bark of Styrax camporum Pohl (Styracaceae) differs anatomically in the root and stem. Roots have layered secondary phloem; short sieve tubes with simple, transverse or more or less inclined sieve plates; fibres in tangential bands; astrosclereids; wide rays, and a poorly developed periderm. Stems have non-layered secondary phloem; longer sieve tubes with compound, scalariform, inclined sieve plates; sclerified cells and brachyselereids; a developed periderm, and a non-persistent rhytidome. Prismatic crystals, starch grains, phenolic compounds and lipidic contents were observed in root and stem bark cells. The differences between the secondary phloem of root and stem are discussed.