Next Article in Journal
Faster Removal of 2-Phosphoglycolate through Photorespiration Improves Abiotic Stress Tolerance of Arabidopsis
Next Article in Special Issue
Exogenous Dopamine Application Promotes Alkali Tolerance of Apple Seedlings
Previous Article in Journal
Potential Effects of Awn Length Variation on Seed Yield and Components, Seed Dispersal and Germination Performance in Siberian Wildrye (Elymus sibiricus L.)
Previous Article in Special Issue
Reactive Carbonyl Species: A Missing Link in ROS Signaling
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems

1
Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
2
Department of Biology, College of science, Jouf University, Sakaka 2014, Saudi Arabia
3
Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21577, Saudi Arabia
4
Princess Dr Najla Bint Saud Al- Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, P.O. Box 80200, Jeddah, Saudi Arabia
5
Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
6
Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
7
Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK
8
Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
*
Author to whom correspondence should be addressed.
Plants 2019, 8(12), 562; https://doi.org/10.3390/plants8120562
Submission received: 7 November 2019 / Revised: 25 November 2019 / Accepted: 28 November 2019 / Published: 1 December 2019
(This article belongs to the Special Issue ROS Responses in Plants)

Abstract

Nitric oxide (NO) at optimal levels is considered beneficial to plant functioning. The present study was carried out to investigate the role of exogenously applied NO (100 and 150 µM sodium nitropurusside, SNP) in amelioration of nickel (Ni)-mediated oxidative effects in eggplant. Ni stress declined growth and biomass production, relative water content (RWC), and chlorophyll pigment synthesis, thereby affecting the photosynthetic efficiency. Exogenously applied SNP proved beneficial in mitigating the Ni-mediated growth restrictions. NO-treated seedlings exhibited improved photosynthesis, stomatal conductance, and chlorophyll content with the effect of being apparent at lower concentration (100 µM SNP). SNP upregulated the antioxidant system mitigating the oxidative damage on membranes due to Ni stress. The activity of superoxide dismutase, catalase, glutathione S-transferase, ascorbate peroxidase, and glutathione reductase was upregulated due to SNP which also increased the ascorbate and reduced glutathione content. SNP-supplied seedlings also showed higher proline and glycine betaine accumulation, thereby improving RWC and antioxidant system. Glyoxalase I activity was induced due to SNP application declining the accumulation of methylglyoxal. NO-mediated mitigation of Ni toxicity was confirmed using NO scavenger (PTIO, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide), which reversed the influence of SNP almost entirely on the parameters studied. Uptake of nitrogen (N), potassium (K), and calcium (Ca) was increased due to SNP application and Ni was reduced significantly. Therefore, this study revealed the efficiency of exogenous SNP in enhancing Ni stress tolerance through upregulating antioxidant and glyoxalase systems.
Keywords: Antioxidants; Glyoxalase; Lipid peroxidation; Lipoxygenase; Nickel; Nitric oxide Antioxidants; Glyoxalase; Lipid peroxidation; Lipoxygenase; Nickel; Nitric oxide

Share and Cite

MDPI and ACS Style

Soliman, M.; Alhaithloul, H.A.; Hakeem, K.R.; Alharbi, B.M.; El-Esawi, M.; Elkelish, A. Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems. Plants 2019, 8, 562. https://doi.org/10.3390/plants8120562

AMA Style

Soliman M, Alhaithloul HA, Hakeem KR, Alharbi BM, El-Esawi M, Elkelish A. Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems. Plants. 2019; 8(12):562. https://doi.org/10.3390/plants8120562

Chicago/Turabian Style

Soliman, Mona, Haifa A. Alhaithloul, Khalid Rehman Hakeem, Basmah M. Alharbi, Mohamed El-Esawi, and Amr Elkelish. 2019. "Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems" Plants 8, no. 12: 562. https://doi.org/10.3390/plants8120562

APA Style

Soliman, M., Alhaithloul, H. A., Hakeem, K. R., Alharbi, B. M., El-Esawi, M., & Elkelish, A. (2019). Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems. Plants, 8(12), 562. https://doi.org/10.3390/plants8120562

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop