Journal Article

Zinc oxide nanoparticles mediated salinity stress mitigation in Pisum sativum: a physio-biochemical perspective

Mustafa, Ghazala, Hatami, Mehrnaz, Batool, Sana, Hasan, Murtaza, Chaudhari, Sunbal Khalil, Manzoor, Madiha

2024

Overview

Salinity is the major abiotic stress among others that determines crop productivity. The primary goal is to examine the impact of Zinc Oxide Nanoparticles (ZnO NPs) on the growth, metabolism, and defense systems of pea plants in simulated stress conditions. The ZnO NPs were synthesized via a chemical process and characterized by UV, XRD, and SEM. The ZnO NPs application (50 and 100) ppm and salt (50 mM and 100 mM) concentrations were carried out individually and in combination. At 50 ppm ZnO NPs the results revealed both positive and negative effects, demonstrating an increase in the root length and other growth parameters, along with a decrease in Malondialdehyde (MDA) and hydrogen peroxide concentrations. However, different concentrations of salt (50 mM and 100 mM) had an overall negative impact on all assessed parameters. In exploring the combined effects of ZnO NPs and salt, various concentrations yielded different outcomes. Significantly, only 50 mM NaCl combined with 50 ppm ZnO NPs demonstrated positive effects on pea physiology, leading to a substantial increase in root length and improvement in other physiological parameters. Moreover, this treatment resulted in decreased levels of MAD, Glycine betaine, and hydrogen peroxide. Conversely, all other treatments exhibited negative effects on the assessed parameters, possibly due to the high concentrations of both stressors. The findings offered valuble reference data for research on the impact of salinity on growth parameters of future agriculture crop.

• Publisher: BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
• Subject: Agricultural production / Agriculture / betaine / Bio-fortification / Biomedical and Life Sciences / Botanical research / Chemical properties / Chemical synthesis / Crop production / Environmental aspects / Glycine / Glycine betaine / Hydrogen peroxide / Hydrogen Peroxide - metabolism / Life Sciences / malondialdehyde / Malondialdehyde - metabolism / metabolism / Metal Nanoparticles / Morphology / Nanofertilizer / Nanoparticles / Parameters / Peas / Physiological aspects / Physiological changes / Physiological effects / Physiology / Pisum sativum / Pisum sativum - drug effects / Pisum sativum - growth & development / Pisum sativum - metabolism / Pisum sativum - physiology / Plant growth / Plant Roots - drug effects / Plant Roots - growth & development / Plant Roots - metabolism / Plant Roots - physiology / Plant Sciences / Salinity / Salinity effects / Salinity stress / Salt / Salt stress / Salt stress (Botany) / Salt Stress - drug effects / Salts / Seeds / Sodium chloride / Tree Biology / Zinc oxide / Zinc Oxide - pharmacology / Zinc oxides