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Research article - Peer-reviewed, 2017

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

Palmqvist, N. G. Martin; Seisenbaeva, Gulaim A.; Svedlindh, Peter; Kessler, Vadim G.

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: 631
Publisher: 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