Efficacy Assessment of Biosynthesized Copper Oxide Nanoparticles (CuO-NPs) on Stored Grain Insects and Their Impacts on Morphological and Physiological Traits of Wheat ( L.) Plant

Overview

Journal Biology (Basel)

Publisher MDPI

Specialty Biology

Date 2021 Apr 3

PMID 33802973

Citations 47

Authors

Ali A Badawy

Nilly A H Abdelfattah

Salem S Salem

Mohamed F Awad

Amr Fouda

Affiliations

Soon will be listed here.

Abstract

Herein, CuO-NPs were fabricated by harnessing metabolites of strain (G3-1) and characterized using UV-vis spectroscopy, XRD, TEM, SEM-EDX, FT-IR, and XPS. Spherical, crystallographic CuO-NPs were synthesized in sizes ranging from 14.0 to 47.4 nm, as indicated by TEM and XRD. EDX and XPS confirmed the presence of Cu and O with weight percentages of 62.96% and 22.93%, respectively, at varied bending energies. FT-IR spectra identified functional groups of metabolites that could act as reducing, capping, and stabilizing agents to the CuO-NPs. The insecticidal activity of CuO-NPs against wheat grain insects and was dose- and time-dependent. The mortality percentages due to NP treatment were 55-94.4% () and 70-90% (). A botanical experiment was done in a randomized block design. Low CuO-NP concentration (50 ppm) caused significant increases in growth characteristics (shoot and root length, fresh and dry weight of shoot and root, and leaves number), photosynthetic pigments (total chlorophylls and carotenoids), and antioxidant enzymes of wheat plants. There was no significant change in carbohydrate or protein content. The use of CuO-NPs is a promising tool to control grain insects and enhance wheat growth performance.

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