genotoxicity
Genotoxicity refers to the capacity of chemical agents or environmental stressors to damage DNA within cells, potentially causing heritable mutations. In plant science, understanding genotoxicity is important for assessing how pollutants, pesticides, and other environmental contaminants affect plant genomic integrity and health. Researchers use plants as bioindicators to detect genotoxic substances in ecosystems, and study how plants respond to and repair DNA damage as part of broader efforts in crop protection and environmental monitoring.
open_in_new WikipediaPubMed · 2026-04-17
Researchers investigated how a plant accumulates lead from contaminated soil and whether this exposure damages its DNA. The study measured both the plant's ability to absorb and tolerate lead and the cellular harm that heavy metal pollution causes.
The plant demonstrated measurable lead accumulation from contaminated growth medium, with uptake increasing at higher exposure concentrations.
Genotoxic damage — harm to the plant's DNA — was detected and correlated with lead concentration, indicating dose-dependent cellular stress.
The species shows phytoremediation potential, meaning it could be used as a biological tool to extract lead from polluted soils.