Effect of Phyto-Assisted Synthesis of Magnesium Oxide Nanoparticles (MgO-NPs) on Bacteria and the Root-Knot Nematode

Azhar U Khan; Masudulla Khan; Azmat Ali Khan; Aiman Parveen; Sajid Ansari; Mahboob Alam

doi:10.1155/2022/3973841

Effect of Phyto-Assisted Synthesis of Magnesium Oxide Nanoparticles (MgO-NPs) on Bacteria and the Root-Knot Nematode

Bioinorg Chem Appl. 2022 Aug 8:2022:3973841. doi: 10.1155/2022/3973841. eCollection 2022.

Authors

Azhar U Khan¹, Masudulla Khan², Azmat Ali Khan³, Aiman Parveen⁴, Sajid Ansari⁴, Mahboob Alam⁵

Affiliations

¹ School of Life and Basic Sciences, Department of Chemistry, SIILAS Jaipur National University, Jaipur 302017, Rajasthan, India.
² Botany Section, Women's College, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India.
³ Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
⁴ Department of Botany Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
⁵ Department of Safety Engineering, Dongguk University, 123 Dongdae-ro, Gyeongju-si 780714, Gyeongsangbuk-do, Republic of Korea.

Abstract

The root-knot nematode was examined using magnesium oxide nanoparticles (MgO-NPs) made from strawberries. The biologically synthesized MgO-NPs were characterized by UV, SEM, FTIR, EDS, TEM, and dynamic light scattering (DLS). Nanoparticles (NPs) were examined using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) and shown to be spherical to hexagonal nanoparticles with an average size of 100 nm. MgO-NPs were tested on the root-knot nematode M. incognita (Meloidogynidae) and the plant pathogenic bacteria Ralstonia solanacearum. The synthesized MgO-NPs showed a signiﬁcant inhibition of R. solanacearum and the root-knot nematode. MgO-NPs cause mortality and inhibit egg hatching of second-stage juveniles (J2) of M. incognita under the in vitro assay. This study aims to examine the biological activity of biogenic MgO-NPs. The findings marked that MgO-NPs may be utilized to manage R. solanacearum and M. incognita and develop effective nematicides. In addition, the antioxidant capacity of MgO-NPs was determined by using 2, 2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH).