Maghemite Nanoparticles Acts as Nanozymes, Improving Growth and Abiotic Stress Tolerance in Brassica napus

Abstract

Yttrium doping-stabilized gamma-Fe2O3 nanoparticles were studied for its potential to serve as a plant fertilizer and, through enzymatic activity, support drought stress management. Levels of both hydrogen peroxide and lipid peroxidation, after drought, were reduced when gamma-Fe2O3 nanoparticles were delivered by irrigation in a nutrient solution to Brassica napus plants grown in soil. Hydrogen peroxide was reduced from 151 to 83 mu M g(-1) compared to control, and the malondialdehyde formation was reduced from 36 to 26 mM g(-1). Growth rate of leaves was enhanced from 33 to 50% growth compared to fully fertilized plants and SPAD-measurements of chlorophyll increased from 47 to 52 suggesting improved agronomic properties by use of gamma-Fe2O3 nanoparticles as fertilizer as compared to chelated iron.

Keywords

Nanozyme; Maghemite nanoparticles; Drought stress; Nanofertilizer; Catalase activity; Iron oxide nanoparticles; Nano agriculture; Agrobio nanotechnology; Growth promotion; Reactive oxygen species scavenging

Published in

Nanoscale Research Letters
2017, Volume: 12, article number: 631Publisher: SPRINGER

SLU Authors

• Palmqvist, Martin

  • The Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences
    

• Seisenbaeva, Gulaim

  • The Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences
    

• Kessler, Vadim

  • The Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Agricultural Science
Nano-technology


Publication identifier

DOI: https://doi.org/10.1186/s11671-017-2404-2

Permanent link to this page (URI)

https://res.slu.se/id/publ/93419