Secretory Structures, Histochemistry, and Antibacterial Activity of Macaranga gigantea as a Medicinal Plant Evi Muliyah (a*), Yohana C Sulistyaningsih (b), Sulistijorini (b), Mohamad Rafi (c)
a) Department of Biology Education, Faculty of Tarbiya and Teaching Sciences, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Banten 15412, Indonesia
*evimuliyah[at]uinjkt.ac.id
b) Department of Biology, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia
c) Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor 16680, Indonesia
Abstract
Macaranga gigantea is a member of the family Euphorbiaceae. Anak Dalam tribe, an indigenous people that live in Bukit Duabelas National Park Jambi province used to utilize the bark of M. gigantea to treat diarrhea. This study aimed to identify the secretory structure, histochemical aspects, and antibacterial potency of M. gigantea bark. The type of secretory structure was carried out. M. gigantea bark has idioblast cells as a secretory structure. The idioblast cells are distributed in the cortex. The idioblast cells contain phenolic compounds, alkaloids, and terpenoids. The well diffusion method was used to test different concentrations of bark extracts. According to the findings, M. gigantea bark extract at 100 mg/mL had the best inhibitory activity against Staphylococcus aureus and Escherichia coli, with a maximal inhibition zone.
