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CC BY V4.0, Open Access
Journal article
Exogenously applied sodium nitroprusside alleviates nickel toxicity in maize by regulating antioxidant activities and defense‐related gene expression
Physiologia plantarum, Vol.175(4), e13985
2023
Appears in Open Access via Read & Publish Agreements
Abstract
Nickel (Ni) stress adversely affects plant growth and biomass accumulation, posturing severe menace to crop production and food security. The current study aimed to determine the putative role of sodium nitroprusside (SNP) in mitigating Ni‐induced phytotoxicity and identify the underlying defense mechanisms in maize, which are poorly understood. Our findings showed that SNP significantly augmented plant growth, biomass, and photosynthesis‐related attributes (Fv/Fm, Fm, qP ETR, and ΦPSII) through diminishing Ni uptake and translocation in root and shoot tissues of maize under Ni stress conditions. In parallel, exogenous SNP substantially relieved maize seedlings from Ni‐induced stress by enhancing enzymatic (SOD, CAT, and GPX) and non‐enzymatic (phenol and flavonoids) antioxidant defenses and reducing oxidative stress indicators (MDA and H 2 O 2 ). The results revealed that SNP treatment increased the content of organic osmolyte glycine betaine and the activity of GST, concomitantly with ATP and ionic exchange capacity (including Ca 2+ ‐ATPase and Mg 2+ ‐ATPase), advocating its sufficiency to promote plant growth and avert Ni‐induced stress in maize plants. The only exception was the production of organic acids (citric, oxalic, malic, and formic acids), which was reduced as SNP treatment relieved maize seedlings from Ni‐induced oxidative damage. The application of SNP also displayed higher expression of defense‐ and detoxifying‐related genes than in control treatments. Together, our data highlighted the mechanism involved in the amelioration of Ni toxicity by SNP; thus, suggesting a potential role of SNP in mitigating the adverse effects of Ni‐contaminated soils to boost growth and yield of crop plants, that is, maize.
Details
- Title
- Exogenously applied sodium nitroprusside alleviates nickel toxicity in maize by regulating antioxidant activities and defense‐related gene expression
- Authors/Creators
- Saghir Abbas - Government College University, FaisalabadFarwa Basit - Sanya UniversityKashif Tanwir - Government College University, FaisalabadXiaobo Zhu - Sanya UniversityJin Hu - Sanya UniversityYajing Guan - Sanya UniversityWeimin Hu - Sanya UniversityMohamed S. Sheteiwy - University of SharjahHaishui Yang - Nanjing Agricultural UniversityAli El-Keblawy - University of SharjahKhaled A. El-Tarabily - Murdoch University, Centre for Terrestrial Ecosystem Science and SustainabilitySynan F. AbuQamar - United Arab Emirates UniversityJianfeng Lou - Shanghai Agrobiological Gene Center
- Publication Details
- Physiologia plantarum, Vol.175(4), e13985
- Publisher
- John Wiley & Sons Ltd on behalf of Scandinavian Plant Physiology Society.
- Identifiers
- 991005601869807891
- Copyright
- © 2023 The Authors.
- Murdoch Affiliation
- Harry Butler Institute; Centre for Terrestrial Ecosystem Science and Sustainability
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.91 Contamination & Phytoremediation
- 3.91.172 Phytoremediation Mechanisms
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science