Related Experiment Video
Updated: Jul 20, 2026

Isolation of Viable Multicellular Glands from Tissue of the Carnivorous Plant, Nepenthes
Published on: December 22, 2013
Chromenes from Peperomia serpens (Sw.) Loudon (Piperaceae)
Rodrigo O Saga Kitamura1, Paulete Romoff, Maria Cláudia M Young
1Faculdade de Ciências Biológicas, Exatas e Experimentais, Universidade Presbiteriana Mackenzie, 01302-970 São Paulo - SP, Brazil.
Abstract:
Chromatographic separation of the CH2Cl2 extract from leaves of Peperomia serpens yielded two chromenes [5-hydroxy-8-(3',7'-dimethylocta-2',6'-dienyl)-2,2,7-trimethyl-2H-1-chromene (1) and 5-hydroxy-8-(3'-methyl-2'-butenyl)-2,2,7-trimethyl-2H-1-chromene-6-carboxylic acid (2)], besides the known chromene [methyl 5-hydroxy-2,2,7-trimethyl-2H-1-chromene-6-carboxylate (3)] and the flavonoid, dihydrooroxylin (4). Their structural elucidation were achieved by spectroscopic analyses. The antifungal activities of the CH2Cl2 extract and the isolated chromenes were measured bioautographically against Cladosporium cladosporioides and C. sphaerospermum, when it was found that the crude extract showed higher activity as compared to the pure compounds.
More Related Videos
Related Concept Videos
Seedless Vascular Plants
Non-vascular Seedless Plants
Introduction to Seed Plants
C4 Pathway and CAM
C4 Pathway
The C4 pathway is used by plants such as...
Pericyclic Reactions: Introduction
Pericyclic reactions can be classified into three categories: electrocyclic reactions, cycloaddition reactions, and sigmatropic rearrangements. Electrocyclic reactions and sigmatropic rearrangements are...
Plant Hormones

