Antibacterial potential of green magnesium oxide nanoparticles against rice pathogen Acidovorax oryzae

Temoor Ahmed; Muhammad Noman; Muhammad Shahid; Muhammad Shafiq Shahid; Bin Li

doi:10.1016/j.matlet.2020.128839

Antibacterial potential of green magnesium oxide nanoparticles against rice pathogen Acidovorax oryzae

Temoor Ahmed, Muhammad Noman, Muhammad Shahid^*, Muhammad Shafiq Shahid, Bin Li

^*Corresponding author for this work

Crop Sciences

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Magnesium oxide nanoparticles (MgONPs) have emerged as effective antibacterial agents with unique physiochemical properties. Here, we report antibacterial activity of MgONPs produced by using Acinetobacter johnsonii strain RTN1 against rice pathogen Acidovorax oryzae for the first time. The physico-chemical and optical properties of biogenic MgONPs were elucidated by using UV–vis spectroscopy, FTIR, XRD, EDS, SEM, and TEM. Biogenic MgONPs showed substantial antibacterial activity (35.2 ± 0.61 mm zone of inhibition) against A. oryzae at 20 µg mL⁻¹ and significantly reduced cell density (80.83% MIC at OD600) of pathogen in broth culture. The ultrastructure studies revealed the morphological disruptions in MgONPs-treated A. oryzae cells as compared to control. Hence, the MgONPs could be used to formulate a potent nanopesticide for A. oryzae.

Original language	English
Article number	128839
Journal	Materials Letters
Volume	282
DOIs	https://doi.org/10.1016/j.matlet.2020.128839
Publication status	Published - Jan 1 2021

Keywords

Antibacterial activity
Biomaterials
Nanoparticles
Rice pathogen

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Antibacterial potential of green magnesium oxide nanoparticles against rice pathogen Acidovorax oryzae",

abstract = "Magnesium oxide nanoparticles (MgONPs) have emerged as effective antibacterial agents with unique physiochemical properties. Here, we report antibacterial activity of MgONPs produced by using Acinetobacter johnsonii strain RTN1 against rice pathogen Acidovorax oryzae for the first time. The physico-chemical and optical properties of biogenic MgONPs were elucidated by using UV–vis spectroscopy, FTIR, XRD, EDS, SEM, and TEM. Biogenic MgONPs showed substantial antibacterial activity (35.2 ± 0.61 mm zone of inhibition) against A. oryzae at 20 µg mL−1 and significantly reduced cell density (80.83% MIC at OD600) of pathogen in broth culture. The ultrastructure studies revealed the morphological disruptions in MgONPs-treated A. oryzae cells as compared to control. Hence, the MgONPs could be used to formulate a potent nanopesticide for A. oryzae.",

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AU - Ahmed, Temoor

AU - Noman, Muhammad

AU - Shahid, Muhammad

AU - Shahid, Muhammad Shafiq

AU - Li, Bin

PY - 2021/1/1

Y1 - 2021/1/1

N2 - Magnesium oxide nanoparticles (MgONPs) have emerged as effective antibacterial agents with unique physiochemical properties. Here, we report antibacterial activity of MgONPs produced by using Acinetobacter johnsonii strain RTN1 against rice pathogen Acidovorax oryzae for the first time. The physico-chemical and optical properties of biogenic MgONPs were elucidated by using UV–vis spectroscopy, FTIR, XRD, EDS, SEM, and TEM. Biogenic MgONPs showed substantial antibacterial activity (35.2 ± 0.61 mm zone of inhibition) against A. oryzae at 20 µg mL−1 and significantly reduced cell density (80.83% MIC at OD600) of pathogen in broth culture. The ultrastructure studies revealed the morphological disruptions in MgONPs-treated A. oryzae cells as compared to control. Hence, the MgONPs could be used to formulate a potent nanopesticide for A. oryzae.

AB - Magnesium oxide nanoparticles (MgONPs) have emerged as effective antibacterial agents with unique physiochemical properties. Here, we report antibacterial activity of MgONPs produced by using Acinetobacter johnsonii strain RTN1 against rice pathogen Acidovorax oryzae for the first time. The physico-chemical and optical properties of biogenic MgONPs were elucidated by using UV–vis spectroscopy, FTIR, XRD, EDS, SEM, and TEM. Biogenic MgONPs showed substantial antibacterial activity (35.2 ± 0.61 mm zone of inhibition) against A. oryzae at 20 µg mL−1 and significantly reduced cell density (80.83% MIC at OD600) of pathogen in broth culture. The ultrastructure studies revealed the morphological disruptions in MgONPs-treated A. oryzae cells as compared to control. Hence, the MgONPs could be used to formulate a potent nanopesticide for A. oryzae.

KW - Antibacterial activity

KW - Biomaterials

KW - Nanoparticles

KW - Rice pathogen

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Antibacterial potential of green magnesium oxide nanoparticles against rice pathogen Acidovorax oryzae

Abstract

Keywords

ASJC Scopus subject areas

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