Growth-Promoting Gold Nanoparticles Decrease Stress Responses in Arabidopsis Seedlings.

ABSTRACT: The global economic success of man-made nanoscale materials has led to a higher production rate and diversification of emission sources in the environment. For these reasons, novel nanosafety approaches to assess the environmental impact of engineered nanomaterials are required. While studying the potential toxicity of metal nanoparticles (NPs), we realized that gold nanoparticles (AuNPs) have a growth-promoting rather than a stress-inducing effect. In this study we established stable short- and long-term exposition systems for testing plant responses to NPs. Exposure of plants to moderate concentrations of AuNPs resulted in enhanced growth of the plants with longer primary roots, more and longer lateral roots and increased rosette diameter, and reduced oxidative stress responses elicited

SUBMITTER: Ferrari E 

PROVIDER: S-EPMC8707008 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature