Related Experiment Video
Updated: Jun 3, 2025

The Infiltration-centrifugation Technique for Extraction of Apoplastic Fluid from Plant Leaves Using Phaseolus vulgaris as an Example
Published on: December 19, 2014
Uptake and transpiration of solid and hollow SiO2 nanoparticles by terrestrial plant (Apium Graveolens var.
Sheena Anne H Garcia1, Shabnam Taghipour1, Deo Charis I Mostrales2
1Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
Abstract:
Recent studies have raised concerns about the potential toxicity of amorphous silica (SiO2) nanoparticles (NPs). This investigation explores the uptake, transport, and transpiration of silica NPs in Apium graveolens var. secalinum. The study reveals that SiO2 NPs can infiltrate the plant cell wall, translocate from roots to stems and leaves, leading to elevated silicon levels and posing ingestion exposure risks. Furthermore, the release of these NPs through transpiration droplets (481 ± 205 mg·m-2day-1 for 10 nm SiO2 NPs and 367 ± 22 mg·m-2day-1for 20 nm SiO2 NPs) presents significant health and environmental hazards. Modeling silica-coated NPs with thin-shelled hollow silica (h-SiO2) NPs demonstrate in vitro and in vivo toxicity. Exposure of mice to these NPs (10 mg·Kg-1day-1) over four weeks induces oxidative stress, inflammation, and apoptosis, along with observed tissue damage in the brain, liver, and kidneys. These findings necessitate additional research into the neurobehavioral impacts of nanoparticles on mice.
More Related Videos
07:08Identification of Novel Regulators of Plant Transpiration by Large-Scale Thermal Imaging Screening in Helianthus Annuus
Published on: January 30, 2020
12:03Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil
Published on: September 1, 2020
Related Concept Videos
Water and Mineral Acquisition
Short-distance Transport of Resources
The Apoplast and Symplast
Key Elements for Plant Nutrition
Xylem and Transpiration-driven Transport of Resources
Responses to Salt Stress