Abstract
The genus Piper with over 700 species distributed in tropical and subtropical areas of
the world has a considerable number of species with economic importance as spices
and herbal medicine. In this study the anatomical characters of leaf and stem on 10
species of Piper from Bogor Botanical Garden, Indonesia were observed in relation
with their function as oil-accumulating organs. The objective of this study was to
explore the anatomical variability among species. Observations on anatomical
characters were done on leaf epidermal and cross section as well as stem cross section
prepared using paraffin embedding method. Results indicated that there were structural
variations on the epidermal features, mesophyll, secretory cells and secretory cannals
of leaves, as well as variation on the ratio of medullary and peripheral vascular bundles
on stem. Results of this study provide additional taxonomic evidence to confirm
differences between Piper species, and serve as supporting data for identification based
on internal structures. Data on the comparative anatomy of leaf and stem also
contributes to the selection of the right materials for the extraction of essential oils from
various Piper species based on the presence of secretory cells.
Hartanto Nugroho, Sutikno1, Ratna Susandarini, Rafika Yuliati, Yosep Priyon, Esti Munawaroh, Puji Astuti. (2019) Comparative leaf and stem anatomy of ten Piper species from Indonesia, Asian Journal of Agriculture and Biology, Volume 7, Issue 3.
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