Issue 1, 2020

CdS nanoparticles in soil induce metabolic reprogramming in broad bean (Vicia faba L.) roots and leaves

Abstract

The rapid development of nanotechnology has raised concern regarding the environmental toxicity of nanoparticles (NPs). However, little is known about the molecular mechanisms underlying NP toxicity in plants. Broad bean (Vicia faba L.) plants were cultivated in soil amended with 0, 10, and 100 mg cadmium sulfide (CdS)-NPs per kg soil for 4 weeks, and then the phenotypic, biochemical, and metabolic responses of the plants to CdS-NP stress were evaluated. Metabolomics analysis revealed the significant up-regulation (1.2- to 39.2-fold) of several antioxidative metabolites, including N-acetyl-5-hydroxytryptamine, 2-hydroxybutanoic acid, putrescine, and flavone, upon CdS-NP exposure, but no negative phenotypic effects were visible (plant biomass, photosynthetic pigment contents, and lipid peroxidation). This observation was in accordance with the observed regulation of antioxidative-defense-related metabolic pathways (tyrosine pathway and phenylpropanoid biosynthesis) that were identified by biological pathway analysis. Importantly, twice as many metabolites were modulated in leaves than in roots, including three nitrogen-related (purine metabolism; alanine, aspartate, and glutamate metabolism; β-alanine metabolism) and two carbon-related (pantothenate and CoA biosynthesis and carbon fixation) metabolic pathways. These results indicate that to alleviate the toxicity of CdS-NP exposure in soil, plants significantly reprogram the metabolic profiles of leaves rather than of roots, which might subsequently impact both harvest and crop quality.

Graphical abstract: CdS nanoparticles in soil induce metabolic reprogramming in broad bean (Vicia faba L.) roots and leaves

Supplementary files

Article information

Article type
Paper
Submitted
18 Там. 2019
Accepted
24 Қар. 2019
First published
25 Қар. 2019

Environ. Sci.: Nano, 2020,7, 93-104

Author version available

CdS nanoparticles in soil induce metabolic reprogramming in broad bean (Vicia faba L.) roots and leaves

L. Tian, H. Zhang, X. Zhao, X. Gu, J. C. White, L. Zhao and R. Ji, Environ. Sci.: Nano, 2020, 7, 93 DOI: 10.1039/C9EN00933G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements