Poster Presentations
Day 2, June 11（Thu.） Room P (5F 501+502)
- 2P-50
Untargeted Metabolomics Analysis of Scindapsus (Epipremnum aureum) Responses to Urban Aerosol Particulate Matter Exposure using High-Resolution Mass Spectrometry
(1KNU MSCRI, 2KNU)
oSeungwoo Son1, Sunghwan Kim1,2
As public concern over aerosol particulate matter (PM) grows, understanding the chemical mechanisms of plant-mediated PM reduction is crucial. This study investigates the immune-metabolic strategies of Scindapsus (Epipremnum aureum) under extreme urban PM exposure (2,000 times the indoor limit) using an untargeted metabolomics approach. Scindapsus Plants were exposed to 25 mg of South Korean urban PM certified reference material (CRM) thrice weekly for 30 days in customized polycarbonate chambers. Scindapsus tissues (leaves, stems, roots, and soil) were harvested, lyophilized, and analyzed via ultra-performance liquid chromatography (UPLC) coupled with an electrospray ionization (ESI) Orbitrap mass spectrometer.
A total of 164 datasets from 40 samples were processed through library matching and chemometric analyses, such as principal component analysis (PCA) and hierarchical clustering. The results identified significant tissue-specific metabolic alterations and mapped defense pathways by integrating identified metabolites and degradation products. Moving beyond physical adsorption, this research elucidates the systemic biotransformation and resistance mechanisms of Scindapsus. These findings provide critical indicators for understanding plant resilience and air purification strategies in actual urban pollution environments.