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Wu M, Xu J, Nie Z, Shi H, Liu H, Zhang Y, Li C, Zhao P, Liu H. Physiological, biochemical and transcriptomic insights into the mechanisms by which molybdenum mitigates cadmium toxicity in Triticum aestivum L. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134516. [PMID: 38714056 DOI: 10.1016/j.jhazmat.2024.134516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/17/2024] [Accepted: 04/30/2024] [Indexed: 05/09/2024]
Abstract
There are many heavy metal stresses in agricultural biological systems, especially cadmium (Cd) stress, which prevent the full growth of plants, lead to a serious decline in crop yield, and endanger human health. Molybdenum (Mo), an essential nutrient element for plants, regulates plant growth mainly by reducing the absorption of heavy metals and protecting plants from oxidative damage. The aim of this study was to determine the protective effect of Mo (1 μM) application on wheat plants under conditions of Cd (10 μM) toxicity. The biomass, Cd and Mo contents, photosynthesis, leaf and root ultrastructure, antioxidant system, and active oxygen content of the wheat plants were determined. Mo increased the total chlorophyll content of wheat leaves by 43.02% and the net photosynthetic rate by 38.67%, and ameliorated the inhibitory effect of cadmium on photosynthesis by up-regulating photosynthesis-related genes and light-trapping genes. In addition, Mo reduced the content of superoxide anion (O2•-) by 16.55% and 31.12%, malondialdehyde (MDA) by 20.75% and 7.17%, hydrogen peroxide (H2O2) by 24.69% and 8.17%, and electrolyte leakage (EL) by 27.59% and 16.82% in wheat leaves and roots, respectively, and enhanced the antioxidant system to reduce the burst of reactive oxygen species and alleviate the damage of Cd stress on wheat. According to the above results, Mo is considered a plant essential nutrient that enhances Cd tolerance in wheat by limiting the absorption, accumulation and transport of Cd and by regulating antioxidant defence mechanisms. ENVIRONMENTAL IMPLICATION: Cadmium (Cd),is one of the most toxic heavy metals in the environment, and Cd pollution is a global environmental problem that threatens food security and human health. Molybdenum (Mo), as an essential plant nutrient, is often used to resist environmental stress. However, the mechanism of Mo treatment on wheat subjected to Cd stress has not been reported. In this study, we systematically analysed the effects of Mo on the phenotype, physiology, biochemistry, ultrastructure and Cd content of wheat subjected to Cd stress, and comprehensively analysed the transcriptomics. It not only reveals the mechanism of Mo tolerance to Cd stress in wheat, but also provides new insights into phytoremediation and plant growth in Cd-contaminated soil.
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Affiliation(s)
- Mengmeng Wu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
| | - Jiayang Xu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Zhaojun Nie
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Huazhong Shi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Haiyang Liu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Yupeng Zhang
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Chang Li
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Peng Zhao
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Key Laboratory of Cultivated Land Quality Conservation in the Huanghuaihai Plain of the Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Hongen Liu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China; Key Laboratory of Cultivated Land Quality Conservation in the Huanghuaihai Plain of the Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China.
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Pan C, Zhang M, Chen J, Lu H, Zhao X, Chen X, Wang L, Guo P, Liu S. miR397 regulates cadmium stress response by coordinating lignin polymerization in the root exodermis in Kandelia obovata. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134313. [PMID: 38669927 DOI: 10.1016/j.jhazmat.2024.134313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/08/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024]
Abstract
Secondary lignification of the root exodermis of Kandelia obovata is crucial for its response to adversity such as high salinity and anaerobic environment, and this lignification is also effective in blocking cadmium transport to the roots. However, how the differences in lignification of root exodermis at different developmental stages respond to Cd stress and its regulatory mechanisms have not been revealed. In this study, after analyzing the root structure and cell wall thickness using a Phenom scanning electron microscope as well as measuring cadmium content in the root cell wall, we found that the exodermis of young and mature roots of K. obovata responded to Cd stress through the polymerization of different lignin monomers, forming two different mechanisms: chelation and blocking. Through small RNA sequencing, RLM-5'-RACE and dual luciferase transient expression system, we found that miR397 targets and regulates KoLAC4/17/7 expression. The expression of KoLAC4/17 promoted the accumulation of guaiacyl lignin during lignification and enhanced the binding of cadmium to the cell wall. Meanwhile, KoLAC7 expression promotes the accumulation of syringyl lignin during lignification, which enhances the obstruction of cadmium and improves the tolerance to cadmium. These findings enhance our understanding of the molecular mechanisms underlying the differential lignification of the root exodermis of K. obovata in response to cadmium stress, and provide scientific guidance for the conservation of mangrove forests under heavy metal pollution.
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Affiliation(s)
- Chenglang Pan
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Technology Innovation Center for Monitoringand Restoration Engineering of Ecological Fragile Zonein Southeast China, Ministry of Natural Resources, Fuzhou 350001, China.
| | - Mingxiong Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jianming Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Technology Innovation Center for Monitoringand Restoration Engineering of Ecological Fragile Zonein Southeast China, Ministry of Natural Resources, Fuzhou 350001, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361102, PR China
| | - Xuemei Zhao
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Xiaofeng Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Lu Wang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Technology Innovation Center for Monitoringand Restoration Engineering of Ecological Fragile Zonein Southeast China, Ministry of Natural Resources, Fuzhou 350001, China
| | - Pingping Guo
- Fujian Minjiang River Estuary Wetland National Nature Reserve Administrative Office, Fuzhou 350001, China
| | - Shuyu Liu
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Ahmad M, Waraich EA, Zulfiqar U, Yong JWH, Ishfaq M, Din KU, Ullah A, Abbas A, Awan MI, Moussa IM, Elshikh MS. Thiourea improves yield and quality traits of Brassica napus L. by upregulating the antioxidant defense system under high temperature stress. Sci Rep 2024; 14:12195. [PMID: 38806561 PMCID: PMC11133410 DOI: 10.1038/s41598-024-62257-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 05/15/2024] [Indexed: 05/30/2024] Open
Abstract
High temperature stress influences plant growth, seed yield, and fatty acid contents by causing oxidative damage. This study investigated the potential of thiourea (TU) to mitigate oxidative stress and restoring seed oil content and quality in canola. The study thoroughly examined three main factors: (i) growth conditions-control and high temperature stress (35 °C); (ii) TU supplementation (1000 mg/L)-including variations like having no TU, water application at the seedling stage, TU application at seedling stage (BBCH Scale-39), water spray at anthesis stage, and TU application at anthesis stage (BBCH Scale-60); (iii) and two canola genotypes, 45S42 and Hiola-401, were studied separately. High temperature stress reduced growth and tissue water content, as plant height and relative water contents were decreased by 26 and 36% in 45S42 and 27 and 42% Hiola-401, respectively, resulting in a substantial decrease in seed yield per plant by 36 and 38% in 45S42 and Hiola-401. Seed oil content and quality parameters were also negatively affected by high temperature stress as seed oil content was reduced by 32 and 35% in 45S42 and Hiola-401. High-temperature stress increased the plant stress indicators like malondialdehyde, H2O2 content, and electrolyte leakage; these indicators were increased in both canola genotypes as compared to control. Interestingly, TU supplementation restored plant performance, enhancing height, relative water content, foliar chlorophyll (SPAD value), and seed yield per plant by 21, 15, 30, and 28% in 45S42; 19, 13, 26, and 21% in Hiola-401, respectively, under high temperature stress as compared to control. In addition, seed quality, seed oil content, linoleic acid, and linolenic acid were improved by 16, 14, and 22% in 45S42, and 16, 11, and 23% in Hiola-401, as compared to control. The most significant improvements in canola seed yield per plant were observed when TU was applied at the anthesis stage. Additionally, the research highlighted that canola genotype 45S42 responded better to TU applications and exhibited greater resilience against high temperature stress compared to genotype Hiola-401. This interesting study revealed that TU supplementation, particularly at the anthesis stage, improved high temperature stress tolerance, seed oil content, and fatty acid profile in two canola genotypes.
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Affiliation(s)
- Muhammad Ahmad
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Ejaz Ahmad Waraich
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan.
| | - Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp, Sweden.
| | - Muhammad Ishfaq
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan
- Department of Agriculture, Extension, Azad Jammu & Kashmir, Pakistan
| | - Kaleem Ul Din
- Department of Botany, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Aman Ullah
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Adeel Abbas
- Institute of Environment and Ecology, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Masood Iqbal Awan
- Department of Agronomy, University of Agriculture, Faisalabad, Depalpur-Okara Campus, Pakistan
| | - Ihab Mohamed Moussa
- Department of Botany and Microbiology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
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Rashkov GD, Stefanov MA, Yotsova EK, Borisova PB, Dobrikova AG, Apostolova EL. Exploring Nitric Oxide as a Regulator in Salt Tolerance: Insights into Photosynthetic Efficiency in Maize. PLANTS (BASEL, SWITZERLAND) 2024; 13:1312. [PMID: 38794383 PMCID: PMC11125177 DOI: 10.3390/plants13101312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 04/29/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024]
Abstract
The growing issue of salinity is a significant threat to global agriculture, affecting diverse regions worldwide. Nitric oxide (NO) serves as an essential signal molecule in regulating photosynthetic performance under physiological and stress conditions. The present study reveals the protective effects of different concentrations (0-300 µM) of sodium nitroprusside (SNP, a donor of NO) on the functions of the main complexes within the photosynthetic apparatus of maize (Zea mays L. Kerala) under salt stress (150 mM NaCl). The data showed that SNP alleviates salt-induced oxidative stress and prevents changes in the fluidity of thylakoid membranes (Laurdan GP) and energy redistribution between the two photosystems (77K chlorophyll fluorescence ratio F735/F685). Chlorophyll fluorescence measurements demonstrated that the foliar spray with SNP under salt stress prevents the decline of photosystem II (PSII) open reaction centers (qP) and improves their efficiency (Φexc), thereby influencing QA- reoxidation. The data also revealed that SNP protects the rate constants for two pathways of QA- reoxidation (k1 and k2) from the changes caused by NaCl treatment alone. Additionally, there is a predominance of QA- interaction with plastoquinone in comparison to the recombination of electrons in QA QB- with the oxygen-evolving complex (OEC). The analysis of flash oxygen evolution showed that SNP treatment prevents a salt-induced 10% increase in PSII centers in the S0 state, i.e., protects the initial S0-S1 state distribution, and the modification of the Mn cluster in the OEC. Moreover, this study demonstrates that SNP-induced defense occurs on both the donor and acceptor sides of the PSII, leading to the protection of overall photosystems performance (PIABS) and efficient electron transfer from the PSII donor side to the reduction of PSI end electron acceptors (PItotal). This study clearly shows that the optimal protection under salt stress occurs at approximately 50-63 nmoles NO/g FW in leaves, corresponding to foliar spray with 50-150 µM SNP.
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Affiliation(s)
| | | | | | | | | | - Emilia L. Apostolova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria; (G.D.R.); (M.A.S.); (E.K.Y.); (P.B.B.); (A.G.D.)
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5
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Zheng-Qiang L, Jun N, Xin-Yu Z, Chao-Zhi Z, Rui A, Xu Y, Rong S, Xiao-Yan Y. Antioxidant and anti-inflammatory function of Eupatorium adenophora Spreng leaves (EASL) on human intestinal Caco-2 cells treated with tert-butyl hydroperoxide. Sci Rep 2024; 14:10509. [PMID: 38714697 PMCID: PMC11076498 DOI: 10.1038/s41598-024-61012-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/30/2024] [Indexed: 05/10/2024] Open
Abstract
Chronic non-communicable diseases (CNCDs) pose a significant public health challenge. Addressing this issue, there has been a notable breakthrough in the prevention and mitigation of NCDs through the use of antioxidants and anti-inflammatory agents. In this study, we aim to explore the effectiveness of Eupatorium adenophora Spreng leaves (EASL) as an antioxidant and anti-inflammatory agent, and its potential applications. To construct a cellular model of oxidative damage and inflammation, Caco-2 cells were treated with tert-butyl hydroperoxide (t-BHP). The biocompatibility of EASL-AE with Caco-2 cells was assessed using the MTT assay, while compatibility was further verified by measuring LDH release and the protective effect against oxidative damage was also assessed using the MTT assay. Additionally, we measured intracellular oxidative stress indicators such as ROS and 8-OHdG, as well as inflammatory pathway signalling protein NFκB and inflammatory factors TNF-α and IL-1β using ELISA, to evaluate the antioxidant and anti-inflammatory capacity of EASL-AE. The scavenging capacity of EASL-AE against free radicals was determined through the DPPH Assay and ABTS Assay. Furthermore, we measured the total phenolic, total flavonoid, and total polysaccharide contents using common chemical methods. The chemical composition of EASL-AE was analyzed using the LC-MS/MS technique. Our findings demonstrate that EASL-AE is biocompatible with Caco-2 cells and non-toxic at experimental levels. Moreover, EASL-AE exhibits a significant protective effect on Caco-2 cells subjected to oxidative damage. The antioxidant effect of EASL-AE involves the scavenging of intracellular ROS, while its anti-inflammatory effect is achieved by down-regulation of the NFκB pathway. Which in turn reduces the release of inflammatory factors TNF-α and IL-1β. Through LC-MS/MS analysis, we identified 222 compounds in EASL-AE, among which gentianic acid, procaine and L-tyrosine were the compounds with high antioxidant capacity and may be the effective constituent for EASL-AE with antioxidant activity. These results suggest that EASL-AE is a natural and high-quality antioxidant and anti-inflammatory biomaterial that warrants further investigation. It holds great potential for applications in healthcare and other related fields.
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Affiliation(s)
- Li Zheng-Qiang
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
| | - Ni Jun
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
| | - Zhu Xin-Yu
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
| | - Zhang Chao-Zhi
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
| | - An Rui
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
| | - Yang Xu
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
| | - She Rong
- Institute of Natural Antioxidants and Anti-Inflammation, Dali University, Dali, 671003, Yunnan, China.
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China.
| | - Yang Xiao-Yan
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, 671003, Yunnan, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region From Dali University, Dali, 671003, Yunnan, China
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Wang S, Hao X, Liu Y, Chen Y, Qu Y, Wang Z, Shen Y. AnWRKY29 and AnHSP90 synergistically modulate trehalose levels in a desert shrub leaves during osmotic stress. PHYSIOLOGIA PLANTARUM 2024; 176:e14237. [PMID: 38433182 DOI: 10.1111/ppl.14237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/09/2024] [Indexed: 03/05/2024]
Abstract
Trehalose, a biological macromolecule with osmotic adjustment properties, plays a crucial role during osmotic stress. As a psammophyte, Ammopiptanthus nanus relies on the accumulation of organic solutes to respond to osmotic stress. We utilized virus-induced gene silencing technology for the first time in the desert shrub A. nanus to confirm the central regulatory role of AnWRKY29 in osmotic stress, as it controls the transcription of AnTPS11 (trehalose-6-phosphate synthase 11). Further investigation has shown that AnHSP90 may interact with AnWRKY29. The AnHSP90 gene is sensitive to osmotic stress, underscoring its pivotal role in orchestrating the response to such adverse conditions. By directly targeting the W-box element within the AnTPS11 promoter, AnWRKY29 effectively enhances the transcriptional activity of AnTPS11, which is facilitated by AnHSP90. This discovery highlights the critical role of AnWRKY29 and AnHSP90 in enabling organisms to adapt to and cope effectively with osmotic stress, which can be a crucial factor in A. nanus survival and overall ecological resilience. Collectively, uncovering the molecular mechanisms underlying the osmotic responses of A. nanus is paramount for comprehending and augmenting the osmotic tolerance mechanisms of psammophyte shrub plants.
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Affiliation(s)
- Shuyao Wang
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Xin Hao
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yahui Liu
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yingying Chen
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yue Qu
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Zhaoyuan Wang
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Yingbai Shen
- National Engineering Research Center of Tree breeding and Ecological restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
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Sharma G, Sharma N, Ohri P. Harmonizing hydrogen sulfide and nitric oxide: A duo defending plants against salinity stress. Nitric Oxide 2024; 144:1-10. [PMID: 38185242 DOI: 10.1016/j.niox.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/01/2023] [Accepted: 01/05/2024] [Indexed: 01/09/2024]
Abstract
In the face of escalating salinity stress challenges in agricultural systems, this review article delves into the harmonious partnership between hydrogen sulfide (H2S) and nitric oxide (NO) as they collectively act as formidable defenders of plants. Once considered as harmful pollutants, H2S and NO have emerged as pivotal gaseous signal molecules that profoundly influence various facets of plant life. Their roles span from enhancing seed germination to promoting overall growth and development. Moreover, these molecules play a crucial role in bolstering stress tolerance mechanisms and maintaining essential plant homeostasis. This review navigates through the intricate signaling pathways associated with H2S and NO, elucidating their synergistic effects in combating salinity stress. We explore their potential to enhance crop productivity, thereby ensuring food security in saline-affected regions. In an era marked by pressing environmental challenges, the manipulation of H2S and NO presents promising avenues for sustainable agriculture, offering a beacon of hope for the future of global food production.
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Affiliation(s)
- Gaurav Sharma
- Department of Microbiology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
| | - Nandni Sharma
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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Ahmad B, Mukarram M, Choudhary S, Petrík P, Dar TA, Khan MMA. Adaptive responses of nitric oxide (NO) and its intricate dialogue with phytohormones during salinity stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108504. [PMID: 38507841 DOI: 10.1016/j.plaphy.2024.108504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/23/2024] [Accepted: 03/03/2024] [Indexed: 03/22/2024]
Abstract
Nitric oxide (NO) is a gaseous free radical that acts as a messenger for various plant phenomena corresponding to photomorphogenesis, fertilisation, flowering, germination, growth, and productivity. Recent developments have suggested the critical role of NO in inducing adaptive responses in plants during salinity. NO minimises salinity-induced photosynthetic damage and improves plant-water relation, nutrient uptake, stomatal conductance, electron transport, and ROS and antioxidant metabolism. NO contributes active participation in ABA-mediated stomatal regulation. Similar crosstalk of NO with other phytohormones such as auxins (IAAs), gibberellins (GAs), cytokinins (CKs), ethylene (ET), salicylic acid (SA), strigolactones (SLs), and brassinosteroids (BRs) were also observed. Additionally, we discuss NO interaction with other gaseous signalling molecules such as reactive oxygen species (ROS) and reactive sulphur species (RSS). Conclusively, the present review traces critical events in NO-induced morpho-physiological adjustments under salt stress and discusses how such modulations upgrade plant resilience.
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Affiliation(s)
- Bilal Ahmad
- Department of Botany, Aligarh Muslim University, Aligarh, 202002, India; Department of Botany, Govt Degree College for Women, Pulwama, University of Kashmir, 192301, India
| | - Mohammad Mukarram
- Department of Phytology, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 96001, Zvolen, Slovakia; Food and Plant Biology Group, Department of Plant Biology, School of Agriculture, Universidad de la República, Montevideo, Uruguay.
| | - Sadaf Choudhary
- Department of Botany, Govt Degree College for Women, Pulwama, University of Kashmir, 192301, India
| | - Peter Petrík
- Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research-Atmospheric Environmental Research (IMK-IFU), Kreuzeckbahnstraße 19, 82467, Garmisch-Partenkirchen, Germany
| | - Tariq Ahmad Dar
- Sri Pratap College, Cluster University Srinagar, 190001, India
| | - M Masroor A Khan
- Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
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Lin W, Wang Y, Li X, Huang X, Wang Y, Shang JX, Zhao L. S-nitrosylation of RABG3E positively regulates vesicle trafficking to promote salt tolerance. PLANT, CELL & ENVIRONMENT 2023; 46:3858-3870. [PMID: 37667854 DOI: 10.1111/pce.14714] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/06/2023]
Abstract
Nitric oxide (NO) is a key signaling molecule affecting the response of plants to salt stress; however, the underlying molecular mechanism is poorly understood. In this study, we conducted a phenotype analysis and found that the small GTPase RABG3E (RAB7) promotes salt tolerance in Arabidopsis thaliana. NO promotes the S-nitrosylation of RAB7 at Cys-171, which in turn helps maintain the ion balance in salt-stressed plants. Furthermore, the S-nitrosylation of RAB7 at Cys-171 enhances the enzyme's GTPase activity, thereby promoting vesicle trafficking and increasing its interaction with phosphatidylinositol phosphates-especially phosphatidylinositol-4-phosphate (PI4P). Exogenously applied PI4P increases vesicle trafficking and promotes salt tolerance depending on the S-nitrosylation of RAB7 at Cys-171. These findings illustrate a unique mechanism in salt tolerance, by which NO regulates vesicle trafficking and ion homeostasis through the S-nitrosylation of RAB7 and its interaction with PI4P.
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Affiliation(s)
- Wei Lin
- Key Laboratory of Molecular and Cellular Biology of Ministry of Education, Hebei Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Yuehua Wang
- Key Laboratory of Molecular and Cellular Biology of Ministry of Education, Hebei Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Xiaoying Li
- Key Laboratory of Molecular and Cellular Biology of Ministry of Education, Hebei Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Xiahe Huang
- State Key Laboratory of Molecular Developmental Biology, Innovation Academy for Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Yingchun Wang
- State Key Laboratory of Molecular Developmental Biology, Innovation Academy for Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jian-Xiu Shang
- Key Laboratory of Molecular and Cellular Biology of Ministry of Education, Hebei Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Liqun Zhao
- Key Laboratory of Molecular and Cellular Biology of Ministry of Education, Hebei Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
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10
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Saini S, Sharma P, Singh P, Kumar V, Yadav P, Sharma A. Nitric oxide: An emerging warrior of plant physiology under abiotic stress. Nitric Oxide 2023; 140-141:58-76. [PMID: 37848156 DOI: 10.1016/j.niox.2023.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/05/2023] [Accepted: 10/09/2023] [Indexed: 10/19/2023]
Abstract
The natural environment of plants comprises a complex set of various abiotic stresses and their capability to react and survive under this anticipated changing climate is highly flexible and involves a series of balanced interactions between signaling molecules where nitric oxide becomes a crucial component. In this article, we focussed on the role of nitric oxide (NO) in various signal transduction pathways of plants and its positive impact on maintaining cellular homeostasis under various abiotic stresses. Besides this, the recent data on interactions of NO with various phytohormones to control physiological and biochemical processes to attain abiotic stress tolerance have also been considered. These crosstalks modulate the plant's defense mechanism and help in alleviating the negative impact of stress. While focusing on the diverse functions of NO, an effort has been made to explore the functions of NO-mediated post-translational modifications, such as the N-end rule pathway, tyrosine nitration, and S-nitrosylation which revealed the exact mechanism and characterization of proteins that modify various metabolic processes in stressed conditions. Considering all of these factors, the present review emphasizes the role of NO and its interlinking with various phytohormones in maintaining developmental processes in plants, specifically under unfavorable environments.
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Affiliation(s)
- Sakshi Saini
- Department of Botany, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Priyanka Sharma
- Department of Botany, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Pooja Singh
- Department of Botany, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Vikram Kumar
- Department of Botany, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Priya Yadav
- Department of Botany, Zakir Husain Delhi College, University of Delhi, New Delhi, India.
| | - Asha Sharma
- Department of Botany, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
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11
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Iram K, Ashraf MA, Ibrahim SM, Rasheed R, Ali S. Coumarin regulated redox homeostasis to facilitate phytoremediation of saline and alkaline soils by bitter gourd (Momordica charantia L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:99584-99604. [PMID: 37620696 DOI: 10.1007/s11356-023-29360-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/11/2023] [Indexed: 08/26/2023]
Abstract
The use of coumarin (COU) to alleviate the phytotoxic effects of salinity has great potential in improving the phytoremediation of saline and alkaline soils. 30-day bitter gourd plants were exposed to 15 dS m‒1 salinity of neutral (NaCl and Na2SO4) and alkaline (Na2CO3 and NaHCO3) salts. 60-day plants were harvested to record different growth, physiological and biochemical attributes. Salinity significantly subsided plant growth, chlorophyll, photosynthesis, and nutrient acquisition. Salinity induced notable oxidative damage in plants that displayed higher relative membrane permeability (RMP), accumulated elevated ROS (H2O2 and O2•‒) and MDA levels alongside intensified lipoxygenase (LOX) activity. The production of cytotoxic methylglyoxal was also significantly higher in plants under salinity. COU seed priming (50, 100 and 150 mg L‒1) promoted plant growth by circumventing oxidative injury and intensifying oxidative defense. Further, COU maintained the intricate balance between reduced (GSH) and oxidized (GSSG) glutathione to diminish ion excess toxicity, thereby facilitating the phytoremediation of saline soils. The lower doses of COU promoted methylglyoxal and ROS detoxification systems that, in turn, lessened the phytotoxic effects of salinity. COU restored ions homeostasis by augmenting osmotic adjustment in plants under salinity.
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Affiliation(s)
- Kamila Iram
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Arslan Ashraf
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Sobhy M Ibrahim
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Rizwan Rasheed
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan
- Department of Biological Sciences and Technology, China Medical University, Taichung, 40402, Taiwan
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12
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Imran M, Hussain S, Iqbal A, Saleem MH, Rehman NU, Mo Z, Chen X, Tang X. Nitric oxide confers cadmium tolerance in fragrant rice by modulating physio-biochemical processes, yield attributes, and grain quality traits. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 261:115078. [PMID: 37285677 DOI: 10.1016/j.ecoenv.2023.115078] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/09/2023]
Abstract
Cadmium (Cd) stress causes serious disruptions in plant metabolism, physio-biochemical processes, crop yield, and quality characters. Nitric oxide (NO) improves the quality features and nutritional contents of fruit plants. However, how NO confers Cd toxicity in fragrant rice plants, is sparse. Hence, the present study investigated the effects of 50 µM NO donor sodium nitroprusside (SNP) on physio-biochemical processes, plant growth attributes, grain yield, and quality traits of fragrant rice under Cd stress (100 mg kg-1 soil). The results revealed that Cd stress diminished rice plant growth, impaired photosynthetic apparatus and antioxidant defense system, and deteriorated the grain quality traits. However, foliar application of SNP mitigated Cd stress by improving plant growth and gas exchange attributes. Higher electrolyte leakage (EL) was accompanied with elevated levels of malondialdehyde (MDA) and hydrogen peroxide (H2O2) under Cd stress; however, exogenous application of SNP reduced them. The activities and relative expression levels of enzymatic antioxidants; superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) and non-enzymatic antioxidants, glutathione (GSH) contents were reduced by Cd stress, while SNP application regulated their activity and transcript abundances. SNP application improved fragrant rice grain yield and 2-acetyl-1-pyrroline content by 57.68 % and 75.54 % respectively, which is concomitant with higher biomass accumulation, photosynthetic efficiency, photosynthetic pigment contents, and an improved antioxidant defense system. Collectively, our results concluded that SNP application regulated the fragrant rice plant physio-biochemical processes, yield traits and grain quality characters under Cd-affected soil.
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Affiliation(s)
- Muhammad Imran
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China; Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, PR China
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture Faisalabad, 38040 Punjab, Pakistan
| | - Anas Iqbal
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China
| | - Muhammad Hamzah Saleem
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Naveed Ur Rehman
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China
| | - Zhaowen Mo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China
| | - Xiaoyuan Chen
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, PR China
| | - Xiangru Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China.
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13
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Khan M, Al Azzawi TNI, Ali S, Yun BW, Mun BG. Nitric Oxide, a Key Modulator in the Alleviation of Environmental Stress-Mediated Damage in Crop Plants: A Meta-Analysis. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112121. [PMID: 37299100 DOI: 10.3390/plants12112121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
Nitric oxide (NO) is a small, diatomic, gaseous, free radicle, lipophilic, diffusible, and highly reactive molecule with unique properties that make it a crucial signaling molecule with important physiological, biochemical, and molecular implications for plants under normal and stressful conditions. NO regulates plant growth and developmental processes, such as seed germination, root growth, shoot development, and flowering. It is also a signaling molecule in various plant growth processes, such as cell elongation, differentiation, and proliferation. NO also regulates the expression of genes encoding hormones and signaling molecules associated with plant development. Abiotic stresses induce NO production in plants, which can regulate various biological processes, such as stomatal closure, antioxidant defense, ion homeostasis, and the induction of stress-responsive genes. Moreover, NO can activate plant defense response mechanisms, such as the production of pathogenesis-related proteins, phytohormones, and metabolites against biotic and oxidative stressors. NO can also directly inhibit pathogen growth by damaging their DNA and proteins. Overall, NO exhibits diverse regulatory roles in plant growth, development, and defense responses through complex molecular mechanisms that still require further studies. Understanding NO's role in plant biology is essential for developing strategies for improved plant growth and stress tolerance in agriculture and environmental management.
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Affiliation(s)
- Murtaza Khan
- Department of Horticulture and Life Science, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | | | - Sajid Ali
- Department of Horticulture and Life Science, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Byung-Wook Yun
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Bong-Gyu Mun
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
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14
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Rezayian M, Zarinkamar F. Nitric oxide, calmodulin and calcium protein kinase interactions in the response of Brassica napus to salinity stress. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:411-419. [PMID: 36779525 DOI: 10.1111/plb.13511] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Involvement of nitric oxide (NO) in plant metabolism and its connection with phytohormones has not been fully described, thus information about the role of this molecule in signalling pathways remains fragmented. In this study, the effects of NO on calmodulin (CAM), calcium protein kinase (CPK), content of phytohormones and secondary metabolites in canola plants under salinity stress were investigated. We applied 100 μM sodium nitroprusside as an NO source to canola plants grown under saline (100 mM NaCl) and non-saline conditions at the vegetative stage. Plant growth was negatively affected by salinity, but exogenous NO treatment improved growth. NO caused a significant increase in activity of CAT, SOD and POX through their enhanced gene expression in stressed canola. Salinity-responsive genes, namely CAM and CPK, were induced by NO in plants grown under salinity. NO application enhanced phenolic compounds, such as gallic acid and coumaric acid and flavonoid compound,s catechin, diadzein and kaempferol, in plants subjected to salinity. NO treatment enhanced abscisic acid and brassinosteroids but decreased auxin and gibberellin in stressed canola plants. The impacts of NO in improving stress tolerance in canola required CAM and CPK. Also, NO signalling re-established the phytohormone balance and resulted in enhanced tolerance to salt stress. Furthermore, NO improved salinity tolerance in canola by increasing enzymatic and non-enzymatic antioxidant content.
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Affiliation(s)
- M Rezayian
- Department of Plant Biology, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran
| | - F Zarinkamar
- Department of Plant Biology, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran
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15
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Ihtisham M, Hasanuzzaman M, El-Sappah AH, Zaman F, Khan N, Raza A, Sarraf M, Khan S, Abbas M, Hassan MJ, Li J, Zhao X, Zhao X. Primary plant nutrients modulate the reactive oxygen species metabolism and mitigate the impact of cold stress in overseeded perennial ryegrass. FRONTIERS IN PLANT SCIENCE 2023; 14:1149832. [PMID: 37063220 PMCID: PMC10103648 DOI: 10.3389/fpls.2023.1149832] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/06/2023] [Indexed: 06/08/2023]
Abstract
Overseeded perennial ryegrass (Lolium perenne L.) turf on dormant bermudagrass (Cynodon dactylon Pers. L) in transitional climatic zones (TCZ) experience a severe reduction in its growth due to cold stress. Primary plant nutrients play an important role in the cold stress tolerance of plants. To better understand the cold stress tolerance of overseeded perennial ryegrass under TCZ, a three-factor and five-level central composite rotatable design (CCRD) with a regression model was used to study the interactive effects of nitrogen (N), phosphorus (P), and potassium (K) fertilization on lipid peroxidation, electrolyte leakage, reactive oxygen species (ROS) production, and their detoxification by the photosynthetic pigments, enzymatic and non-enzymatic antioxidants. The study demonstrated substantial effects of N, P, and K fertilization on ROS production and their detoxification through enzymatic and non-enzymatic pathways in overseeded perennial ryegrass under cold stress. Our results demonstrated that the cold stress significantly enhanced malondialdehyde, electrolyte leakage, and hydrogen peroxide contents, while simultaneously decreasing ROS-scavenging enzymes, antioxidants, and photosynthetic pigments in overseeded perennial ryegrass. However, N, P, and K application mitigated cold stress-provoked adversities by enhancing soluble protein, superoxide dismutase, peroxide dismutase, catalase, and proline contents as compared to the control conditions. Moreover, N, P, and, K application enhanced chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids in overseeded perennial ryegrass under cold stress as compared to the control treatments. Collectively, this 2-years study indicated that N, P, and K fertilization mitigated cold stress by activating enzymatic and non-enzymatic antioxidants defense systems, thereby concluding that efficient nutrient management is the key to enhanced cold stress tolerance of overseeded perennial ryegrass in a transitional climate. These findings revealed that turfgrass management will not only rely on breeding new varieties but also on the development of nutrient management strategies for coping cold stress.
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Affiliation(s)
- Muhammad Ihtisham
- College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Ahmed H. El-Sappah
- College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China
- Department of Genetics, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Fawad Zaman
- Key Laboratory of Horticultural Plant Biology, College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan, China
| | - Nawab Khan
- College of Management, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ali Raza
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Beijing, China
| | - Mohammad Sarraf
- Department of Horticultural Sciences, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Shamshad Khan
- School of Geography and Resources Science, Neijiang Normal University, Neijiang, China
| | - Manzar Abbas
- College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China
| | - Muhammad Jawad Hassan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jia Li
- College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China
| | - Xianming Zhao
- College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China
| | - Xin Zhao
- College of Agriculture, Forestry, and Food Engineering, Yibin University, Yibin, Sichuan, China
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16
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Stefanov MA, Rashkov GD, Yotsova EK, Borisova PB, Dobrikova AG, Apostolova EL. Protective Effects of Sodium Nitroprusside on Photosynthetic Performance of Sorghum bicolor L. under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:832. [PMID: 36840183 PMCID: PMC9966380 DOI: 10.3390/plants12040832] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
In this study, the impacts of the foliar application of different sodium nitroprusside (SNP, as a donor of nitric oxide) concentrations (0-300 µM) on two sorghum varieties (Sorghum bicolor L. Albanus and Sorghum bicolor L. Shamal) under salt stress (150 mM NaCl) were investigated. The data revealed that salinity leads to an increase in oxidative stress markers and damage of the membrane integrity, accompanied by a decrease in the chlorophyll content, the open photosystem II (PSII) centers, and the performance indexes (PI ABS and PI total), as well as having an influence on the electron flux reducing photosystem I (PSI) end acceptors (REo/RC). Spraying with SNP alleviated the NaCl toxicity on the photosynthetic functions; the protection was concentration-dependent, and greater in Shamal than in Albanus, i.e., variety specific. Furthermore, the experimental results revealed that the degree of SNP protection under salt stress also depends on the endogenous nitric oxide (NO) amount in leaves, the number of active reaction centers per PSII antenna chlorophylls, the enhanced electron flux reducing end acceptors at the acceptor side of PSI, as well as the stimulation of the cyclic electron transport around PSI. The results showed better protection in both varieties of sorghum for SNP concentrations up to 150 µM, which corresponds to about a 50% increase in the endogenous NO leaf content in comparison to the control plants. Our study provides valuable insight into the molecular mechanisms underlying SNP-induced salt tolerance in sorghum varieties and might be a practical approach to correcting salt intolerance.
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Role of Sodium Nitroprusside on Potential Mitigation of Salt Stress in Centaury ( Centaurium erythraea Rafn) Shoots Grown In Vitro. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010154. [PMID: 36676103 PMCID: PMC9866427 DOI: 10.3390/life13010154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Soil salinity is one of the most common abiotic stressors that affects plant growth and development. The aim of this work was to investigate the influence of sodium nitroprusside (SNP), a donor of nitric oxide (NO), on the physiological response of common centaury (Centaurium erythraea) shoots grown under stress conditions caused by sodium chloride (NaCl) in vitro. Centaury shoots were first grown on nutrient medium containing different SNP concentrations (50, 100 and 250 μM) during the pretreatment phase. After three weeks, the shoots were transferred to nutrient media supplemented with NaCl (150 mM) and/or SNP (50, 100 or 250 μM) for one week. The results showed that salinity decreased photosynthetic pigments, total phenolic content and DPPH (1,1-diphenyl-2-picrylhydrazyl radical) concentration. The activities of antioxidant enzymes, namely superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX), were also reduced under salt stress. However, MDA concentration was decreased, while H2O2 and proline content did not drastically change under the stress conditions caused by NaCl. Exogenous application of SNP altered the biochemical parameters of centaury shoots grown under salt stress. In this case, increased photosynthetic pigment content, total phenolics and proline content were noted, with reduced MDA, but not H2O2, concentration was observed. In addition, the exogenous application of SNP increased the degree of DPPH reduction as well as SOD, CAT and POX activities.
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18
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Kumar D, Ohri P. Say "NO" to plant stresses: Unravelling the role of nitric oxide under abiotic and biotic stress. Nitric Oxide 2023; 130:36-57. [PMID: 36460229 DOI: 10.1016/j.niox.2022.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/15/2022] [Accepted: 11/27/2022] [Indexed: 12/02/2022]
Abstract
Nitric oxide (NO) is a diatomic gaseous molecule, which plays different roles in different strata of organisms. Discovered as a neurotransmitter in animals, NO has now gained a significant place in plant signaling cascade. NO regulates plant growth and several developmental processes including germination, root formation, stomatal movement, maturation and defense in plants. Due to its gaseous state, it is unchallenging for NO to reach different parts of cell and counterpoise antioxidant pool. Various abiotic and biotic stresses act on plants and affect their growth and development. NO plays a pivotal role in alleviating toxic effects caused by various stressors by modulating oxidative stress, antioxidant defense mechanism, metal transport and ion homeostasis. It also modulates the activity of some transcriptional factors during stress conditions in plants. Besides its role during stress conditions, interaction of NO with other signaling molecules such as other gasotransmitters (hydrogen sulfide), phytohormones (abscisic acid, salicylic acid, jasmonic acid, gibberellin, ethylene, brassinosteroids, cytokinins and auxin), ions, polyamines, etc. has been demonstrated. These interactions play vital role in alleviating plant stress by modulating defense mechanisms in plants. Taking all these aspects into consideration, the current review focuses on the role of NO and its interaction with other signaling molecules in regulating plant growth and development, particularly under stressed conditions.
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Affiliation(s)
- Deepak Kumar
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
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Ghorbani A, Pishkar L, Saravi KV, Chen M. Melatonin-mediated endogenous nitric oxide coordinately boosts stability through proline and nitrogen metabolism, antioxidant capacity, and Na +/K + transporters in tomato under NaCl stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1135943. [PMID: 36993844 PMCID: PMC10040658 DOI: 10.3389/fpls.2023.1135943] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/17/2023] [Indexed: 05/14/2023]
Abstract
The interactions between nitric oxide (NO) and melatonin in alleviating sodium chloride (NaCl) toxicity in plants are poorly comprehended. Here, the associations between the exogenous application of melatonin and endogenous NO levels in inducing tomato seedlings' defense response during NaCl toxicity were investigated. The results indicated that the application of melatonin (150 μM) increased height (23.7%) and biomass (32.2%), improved chlorophyll (a (137%) and b (92.8%)), and proline metabolisms, and reduced the contents of superoxide anion radicals (49.6%), hydrogen peroxide (31.4%), malondialdehyde (38%), and electrolyte leakage (32.6%) in 40-day-old tomato seedlings grown under NaCl (150 mM) treatment. Melatonin increased the antioxidant defense system in NaCl-stressed seedlings by increasing the activity of the antioxidant enzymes. Melatonin also improved N metabolism and endogenous NO content in NaCl-stressed seedlings by upregulating the activity of enzymes implicated in N assimilation. Furthermore, melatonin improved ionic balance and reduced Na content in NaCl-exposed seedlings by upregulating the expression of genes involved in K/Na ratio homeostasis (NHX1-4) and increasing the accumulation of mineral nutrients (P, N, Ca, and Mg). However, the addition of cPTIO (100 μM; an NO scavenger) reversed the beneficial impacts of melatonin, indicating the effective function of NO in melatonin-induced defense mechanisms in NaCl-stressed tomato seedlings. Therefore, our results revealed that melatonin improves the tolerance of tomato plants during NaCl toxicity by mediating internal NO.
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Affiliation(s)
- Abazar Ghorbani
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, China
| | - Leila Pishkar
- Department of Biology, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
- *Correspondence: Leila Pishkar, ; Moxian Chen,
| | - Kobra Valed Saravi
- Department of Biology, Damghan branch, Islamic Azad University, Damghan, Iran
| | - Moxian Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, China
- *Correspondence: Leila Pishkar, ; Moxian Chen,
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20
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Wang X, Dai WW, Liu C, Zhang GX, Song WH, Li C, Yangchen YC, Gao RF, Chen YY, Yan H, Tang W, Kou M, Zhang YG, Yuan B, Li Q. Evaluation of Physiological Coping Strategies and Quality Substances in Purple SweetPotato under Different Salinity Levels. Genes (Basel) 2022; 13:genes13081350. [PMID: 36011261 PMCID: PMC9407167 DOI: 10.3390/genes13081350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
Although salinity stress is one of the principal abiotic stresses affecting crop yield, a suitable concentration of NaCl has proven to be useful for increasing crop quality. This study used low salinity (34 mmol/L NaCl) and high salinity (85 mmol/L) to cultivate purple sweetpotato. Using transcriptomics and metabolomics to profile the pathway indicated that glycometabolism, secondary metabolite biosynthesis and the starch catabolic process were the significant pathways under the salinity stress. Further research showed that purple sweetpotato could regulate genes related to the regulation of the cellular Na+, K+, and other ions concentration in response to the low salinity tolerance, but loses this ability under high salinity. Meanwhile, under low salinity, the activity of antioxidant enzymes and their related gene expression are maintained at a high level. The low salinity influences the monosaccharide composition as well as the content and regulation of genes related to starch synthesis. Quality analysis showed that the low salinity could increase the starch content and influence the amylopectin biosynthesis. It suggested that low salinity promotes substance accumulation. High salinity could increase the anthocyanins biosynthesis and low salinity had a significant impact on phenolic acid and flavonol. Finally, the gene expression levels also prove the low salinity could change the composition and content level of the purple sweetpotato. This study showed that an appropriate concentration of NaCl can be used as an elicitor for application in purple sweetpotato planting.
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Affiliation(s)
- Xin Wang
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Wei-Wei Dai
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (W.-W.D.); (G.-X.Z.); (Y.-C.Y.)
| | - Chong Liu
- Institute of Agricultural Sciences in the Coastal Area Jiangsu, Yancheng 224002, China;
| | - Guang-Xi Zhang
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (W.-W.D.); (G.-X.Z.); (Y.-C.Y.)
| | - Wei-Han Song
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Chen Li
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Yuenden-Ci Yangchen
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (W.-W.D.); (G.-X.Z.); (Y.-C.Y.)
| | - Run-Fei Gao
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Yu-Yu Chen
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Hui Yan
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Wei Tang
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Meng Kou
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Yun-Gang Zhang
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
| | - Bo Yuan
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (W.-W.D.); (G.-X.Z.); (Y.-C.Y.)
- Correspondence: (B.Y.); (Q.L.)
| | - Qiang Li
- Sweetpotato Research Institute, Chinese Academy of Agricultural Sciences/Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai District, Key Laboratory of Biology & Genetic Breeding of Sweetpotato, Ministry of Agriculture and Rural Affairs, Xuzhou 221131, China; (X.W.); (W.-H.S.); (C.L.); (R.-F.G.); (Y.-Y.C.); (H.Y.); (W.T.); (M.K.); (Y.-G.Z.)
- Correspondence: (B.Y.); (Q.L.)
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Zheng SQ, Fu ZW, Lu YT. ELO2 Participates in the Regulation of Osmotic Stress Response by Modulating Nitric Oxide Accumulation in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2022; 13:924064. [PMID: 35909771 PMCID: PMC9326477 DOI: 10.3389/fpls.2022.924064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
The ELO family is involved in synthesizing very-long-chain fatty acids (VLCFAs) and VLCFAs play a crucial role in plant development, protein transport, and disease resistance, but the physiological function of the plant ELO family is largely unknown. Further, while nitric oxide synthase (NOS)-like activity acts in various plant environmental responses by modulating nitric oxide (NO) accumulation, how the NOS-like activity is regulated in such different stress responses remains misty. Here, we report that the yeast mutant Δelo3 is defective in H2O2-triggered cell apoptosis with decreased NOS-like activity and NO accumulation, while its Arabidopsis homologous gene ELO2 (ELO HOMOLOG 2) could complement such defects in Δelo3. The expression of this gene is enhanced and required in plant osmotic stress response because the T-DNA insertion mutant elo2 is more sensitive to the stress than wild-type plants, and ELO2 expression could rescue the sensitivity phenotype of elo2. In addition, osmotic stress-promoted NOS-like activity and NO accumulation are significantly repressed in elo2, while exogenous application of NO donors can rescue this sensitivity of elo2 in terms of germination rate, fresh weight, chlorophyll content, and ion leakage. Furthermore, stress-responsive gene expression, proline accumulation, and catalase activity are also repressed in elo2 compared with the wild type under osmotic stress. In conclusion, our study identifies ELO2 as a pivotal factor involved in plant osmotic stress response and reveals its role in regulating NOS-like activity and NO accumulation.
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Role of Signaling Molecules Sodium Nitroprusside and Arginine in Alleviating Salt-Induced Oxidative Stress in Wheat. PLANTS 2022; 11:plants11141786. [PMID: 35890419 PMCID: PMC9319962 DOI: 10.3390/plants11141786] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/24/2022] [Accepted: 06/29/2022] [Indexed: 12/02/2022]
Abstract
Nitric oxide (NO) is a well-accepted signaling molecule that has regulatory effects on plants under various stresses. Salinity is a major issue that adversely affects plant growth and productivity. The current study was carried out to investigate changes in the growth, biochemical parameters, and yield of wheat plants in response to NO donors, namely sodium nitroprusside (SNP) (2.5 and 5.0 mM) and arginine (10 and 20 mM), under two salinity levels (1.2 mM and 85.5 mM NaCl). Salinity stress significantly decreased the lengths and weights of plant parts (shoot, tiller, and root) and reduced the flag leaf area, photosynthetic pigments, indole acetic acid (IAA), and yield and its components. Moreover, salt stress induced a significant accumulation of some osmoprotectants (total soluble sugars (TSS) and amino acids, especially proline) and triggered the accumulation of hydrogen peroxide (H2O2) and lipid peroxidation in wheat leaves. In contrast, arginine and SNP treatments significantly mitigated the negative impacts of salinity on growth and productivity via enhancing photosynthetic pigments, nitrate reductase, phenolic compounds, IAA, TSS, free amino acids, and proline. In addition, SNP and arginine potentially reduced oxidative damage by decreasing H2O2 and lipid peroxidation through the induction of antioxidant enzymes. The individual amino acid composition of wheat grains under the interactive effect of salinity and NO sources has been scarcely documented until now. In this study, the NO sources restrained the reduction in essential amino acids (isoleucine and lysine) of wheat grains under salinity stress and further stimulated the contents of non-essential and total aromatic amino acids. Interestingly, the applied protectants recovered the decrease in arginine and serine induced by salinity stress. Thus, SNP or arginine at the levels of 5.0 and 20 mM, respectively, had a profound effect on modulating the salt stress of wheat throughout the life cycle.
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Zhao C, Bao Z, Feng H, Chen L, Li Q. Nitric oxide enhances resistance of Pleurotus eryngii to cadmium stress by alleviating oxidative damage and regulating of short-chain dehydrogenase/reductase family. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:53036-53049. [PMID: 35278180 DOI: 10.1007/s11356-022-19613-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
The function and mechanism of nitric oxide (NO) in regulating Pleurotus eryngii biological response to cadmium (Cd) stress was evaluated by using anti-oxidation and short-chain dehydrogenase/reductase (SDR) family analysis. The fresh biomass of P. eryngii mycelia sharply decreased after treatment with 50 µM Cd; the lipid peroxidation and H2O2 accumulation in P. eryngii were found responsible for it. Proper exogenous supply of NO (150 µM SNP) alleviated the oxidative damage induced by Cd stress in P. eryngii, which reduced the accumulation of thiobarbituric acid reactive substances (TBARS) and H2O2. The activities of antioxidant enzymes (superoxide dismutase, peroxidase) were significantly increased to deal with Cd stress when treated with SNP (150 µM), and the content of proline was also closely related to NO-mediated reduction of Cd toxicity. Moreover, SDR family members were widely involved in the response to Cd stress, especially PleSCH70 gene was observed for the first time in participating in NO-mediated enhancement of Cd tolerance in P. eryngii. Taken together, this study provides new insights in understanding the tolerance mechanisms of P. eryngii to heavy metal and lays a foundation for molecular breeding of P. eryngii to improve its tolerance to environmental stress.
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Affiliation(s)
- Changsong Zhao
- School of Public Health, Chengdu Medical College, Chengdu, 610500, People's Republic of China
| | - Zhijie Bao
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, 2025 # Chengluo Avenue, , Chengdu, 610106, Sichuan, People's Republic of China
| | - Huiyu Feng
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, 2025 # Chengluo Avenue, , Chengdu, 610106, Sichuan, People's Republic of China
| | - Lanchai Chen
- Key Laboratory of Food Biotechnology, School of Food and Biotechnology, Xihua University, Chengdu, 610039, People's Republic of China
| | - Qiang Li
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, 2025 # Chengluo Avenue, , Chengdu, 610106, Sichuan, People's Republic of China.
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The Role of Nitric Oxide in Plant Responses to Salt Stress. Int J Mol Sci 2022; 23:ijms23116167. [PMID: 35682856 PMCID: PMC9181674 DOI: 10.3390/ijms23116167] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 02/06/2023] Open
Abstract
The gas nitric oxide (NO) plays an important role in several biological processes in plants, including growth, development, and biotic/abiotic stress responses. Salinity has received increasing attention from scientists as an abiotic stressor that can seriously harm plant growth and crop yields. Under saline conditions, plants produce NO, which can alleviate salt-induced damage. Here, we summarize NO synthesis during salt stress and describe how NO is involved in alleviating salt stress effects through different strategies, including interactions with various other signaling molecules and plant hormones. Finally, future directions for research on the role of NO in plant salt tolerance are discussed. This summary will serve as a reference for researchers studying NO in plants.
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Fujita M, Hasanuzzaman M. Approaches to Enhancing Antioxidant Defense in Plants. Antioxidants (Basel) 2022; 11:antiox11050925. [PMID: 35624789 PMCID: PMC9137904 DOI: 10.3390/antiox11050925] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 12/17/2022] Open
Affiliation(s)
- Masayuki Fujita
- Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Miki-cho, Kita-gun, Takamatsu 761-0795, Japan;
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
- Correspondence: ; Tel.: +880-17165-87711
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Root Na+ Content Negatively Correlated to Salt Tolerance Determines the Salt Tolerance of Brassica napus L. Inbred Seedlings. PLANTS 2022; 11:plants11070906. [PMID: 35406886 PMCID: PMC9002931 DOI: 10.3390/plants11070906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/16/2022]
Abstract
Soil salinization is a major environmental stressor that reduces the growth and yield of crops. Maintaining the balance of ions under salinity is vital for plant salt tolerance; however, little is known about the correlation between the salt tolerance of crops and the ion contents of their roots and shoots. Here, we investigated the poorly understood salt-tolerance mechanisms, particularly regarding ion contents (particularly Na+), in Brassica napus subsp. napus L., an agriculturally important species. Twenty B. napus inbred lines were randomly chosen from five salt-tolerance categories and treated with increasing concentrations of NaCl (0–200 mmol) for this work. We found that the root Na+ content is the most correlated limiting factor for the salt tolerance of B. napus; the higher the salt tolerance, the lower the root Na+ content. Correspondingly, the Ca2+/Na+ and K+/Na+ ratios of the roots were highly correlated with B. napus salt tolerance, indicating that the selective absorption ability of these ions by the roots and their translocation to the shoots play a pivotal role in this trait. These data provide a foundation for the further study of the molecular mechanisms underlying salt tolerance and for breeding salt-tolerant B. napus cultivars.
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Huang Y, Mei G, Fu X, Wang Y, Ruan X, Cao D. Ultrasonic Waves Regulate Antioxidant Defense and Gluconeogenesis to Improve Germination From Naturally Aged Soybean Seeds. FRONTIERS IN PLANT SCIENCE 2022; 13:833858. [PMID: 35419018 PMCID: PMC8996252 DOI: 10.3389/fpls.2022.833858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Soybean seeds contain substantial triacylglycerols and fatty acids that are prone to oxidation during storage, contributing to the dramatic deterioration of seed vigor. This study reports an ultrasonic waves treatment (UWT), which is a physical method capable of promoting the germination ability of the aged soybean seeds by regulating the antioxidant defense and gluconeogenesis. Germination test revealed that UWT significantly increased the germination rate and seedlings' establishment of the soybean seeds stored for 12 months, although insignificantly impacting the vigor of fresh (stored for 1 month) and short-term stored (for 6 months) seeds. Further biochemical analysis revealed that UWT decreased the hydrogen peroxide (H2O2), O2⋅-, and malondialdehyde contents in the aged soybean seeds during early germination. Consistently, UWT prominently elevated the activities of superoxide dismutase, catalase, and acetaldehyde dehydrogenase, and also the corresponding gene expressions. Besides, the soluble sugar content of UWT was significantly higher than that of the untreated aged seeds. Analysis of enzyme activity showed UWT significantly upregulated the activities of several key enzymes in gluconeogenesis and the transcription levels of corresponding genes. Moreover, UWT enhanced the invertase activity within aged seeds, which was responsible for catalyzing sucrose hydrolysis for forming glucose and fructose. In summary, UWT improved germination and seedlings establishment of aged soybean seeds by regulating antioxidant defense and gluconeogenesis. This study expands the application of ultrasonication in agricultural production and further clarifies the physiological and molecular mechanisms of the aged seed germination, aiming to provide theoretical and practical guidance for seed quality and safety.
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Affiliation(s)
- Yutao Huang
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Gaofu Mei
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xujun Fu
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yang Wang
- The Key Laboratory of Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Xiaoli Ruan
- Zhejiang Nongke Seed Co. Ltd., Hangzhou, China
| | - Dongdong Cao
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Emamverdian A, Ding Y, Barker J, Mokhberdoran F, Ramakrishnan M, Liu G, Li Y. Nitric Oxide Ameliorates Plant Metal Toxicity by Increasing Antioxidant Capacity and Reducing Pb and Cd Translocation. Antioxidants (Basel) 2021; 10:1981. [PMID: 34943084 PMCID: PMC8750146 DOI: 10.3390/antiox10121981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/03/2021] [Accepted: 12/07/2021] [Indexed: 12/13/2022] Open
Abstract
Recently, nitric oxide (NO) has been reported to increase plant resistance to heavy metal stress. In this regard, an in vitro tissue culture experiment was conducted to evaluate the role of the NO donor sodium nitroprusside (SNP) in the alleviation of heavy metal toxicity in a bamboo species (Arundinaria pygmaea) under lead (Pb) and cadmium (Cd) toxicity. The treatment included 200 µmol of heavy metals (Pb and Cd) alone and in combination with 200 µM SNP: NO donor, 0.1% Hb, bovine hemoglobin (NO scavenger), and 50 µM L-NAME, N(G)-nitro-L-arginine methyl ester (NO synthase inhibitor) in four replications in comparison to controls. The results demonstrated that the addition of L-NAME and Hb as an NO synthase inhibitor and NO scavenger significantly increased oxidative stress and injured the cell membrane of the bamboo species. The addition of sodium nitroprusside (SNP) for NO synthesis increased antioxidant activity, protein content, photosynthetic properties, plant biomass, and plant growth under heavy metal (Pb and Cd) toxicity. It was concluded that NO can increase plant tolerance for metal toxicity with some key mechanisms, such as increasing antioxidant activities, limiting metal translocation from roots to shoots, and diminishing metal accumulation in the roots, shoots, and stems of bamboo species under heavy metal toxicity (Pb and Cd).
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Affiliation(s)
- Abolghassem Emamverdian
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.D.); (F.M.); (M.R.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
| | - Yulong Ding
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.D.); (F.M.); (M.R.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
| | - James Barker
- School of Life Sciences, Pharmacy and Chemistry, Kingston University, Kingston-upon-Thames KT1 2EE, UK;
| | - Farzad Mokhberdoran
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.D.); (F.M.); (M.R.)
| | - Muthusamy Ramakrishnan
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.D.); (F.M.); (M.R.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
| | - Guohua Liu
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China; (Y.D.); (F.M.); (M.R.)
- Bamboo Research Institute, Nanjing Forestry University, Nanjing 210037, China
| | - Yang Li
- Department of Mathematical Sciences, Florida Atlantic University, Boca Raton, FL 33431, USA;
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do Carmo GC, Iastrenski LF, Debiasi TV, da Silva RC, Gomes DG, Pelegrino MT, Bianchini E, Stolf-Moreira R, Pimenta JA, Seabra AB, Oliveira HC. Nanoencapsulation improves the protective effects of a nitric oxide donor on drought-stressed Heliocarpus popayanensis seedlings. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112713. [PMID: 34478983 DOI: 10.1016/j.ecoenv.2021.112713] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/30/2021] [Accepted: 08/25/2021] [Indexed: 05/23/2023]
Abstract
Despite the important role played by nitric oxide (NO) in plants subjected to abiotic stress, NO donors application to induce drought tolerance in neotropical tree seedlings has not yet been tested. It is also worth investigating whether NO bioactivity in drought-stressed seedlings could be potentiated by NO donors nanoencapsulation. The aim of the current study is to evaluate the effects of chitosan nanoparticles (NPs) containing S-nitroso-mercaptosuccinic acid (S-nitroso-MSA) on drought-stressed seedlings of neotropical tree species Heliocarpus popayanensis Kunth in comparison to free NO donor and NPs loaded with non-nitrosated MSA. Nanoencapsulation slowed down NO release from S-nitroso-MSA, and nanoencapsulated S-nitroso-MSA yielded 2- and 1.6-fold higher S-nitrosothiol levels in H. popayanensis roots and leaves, respectively, than the free NO donor. S-nitroso-MSA has prevented drought-induced CO2 assimilation inhibition, regardless of nanoencapsulation, but the nanoencapsulated NO donor has induced earlier ameliorative effect. Both NO and MSA have decreased oxidative stress in H. popayanensis roots, but this effect was not associated with antioxidant enzyme induction, with higher seedling biomass, or with proline and glycine betaine accumulation. Nanoencapsulated S-nitroso-MSA was the only formulation capable of increasing leaf relative water content in drought-stressed plants (from 32.3% to 60.5%). In addition, it induced root hair formation (increase by 36.6% in comparison to well-hydrated plants). Overall, results have evidenced that nanoencapsulation was capable of improving the protective effect of S-nitroso-MSA on H. popayanensis seedlings subjected to drought stress, a fact that highlighted the potential application of NO-releasing NPs to obtain drought-tolerant tree seedlings for reforestation programs.
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Affiliation(s)
- Giovanna Camargo do Carmo
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Lorena Felix Iastrenski
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Tatiane Viegas Debiasi
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Rafael Caetano da Silva
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Diego Genuário Gomes
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Milena Trevisan Pelegrino
- Center for Natural and Human Sciences, Universidade Federal do ABC (UFABC), Av. dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil
| | - Edmilson Bianchini
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Renata Stolf-Moreira
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - José Antonio Pimenta
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil
| | - Amedea Barozzi Seabra
- Center for Natural and Human Sciences, Universidade Federal do ABC (UFABC), Av. dos Estados 5001, CEP 09210-580, Santo André, SP, Brazil
| | - Halley Caixeta Oliveira
- Department of Animal and Plant Biology, Universidade Estadual de Londrina (UEL), Rodovia Celso Garcia Cid, km 380, CEP 86057-970, Londrina, PR, Brazil.
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Alharby HF, Nahar K, Al-Zahrani HS, Hakeem KR, Hasanuzzaman M. Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways. PLANTS (BASEL, SWITZERLAND) 2021; 10:2085. [PMID: 34685894 PMCID: PMC8537241 DOI: 10.3390/plants10102085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022]
Abstract
Boron (B) performs physiological functions in higher plants as an essential micronutrient, but its protective role in salt stress is poorly understood. Soybean (Glycine max L.) is planted widely throughout the world, and salinity has adverse effects on its physiology. Here, the role of B (1 mM boric acid) in salt stress was studied by subjecting soybean plants to two levels of salt stress: mild (75 mM NaCl) and severe (150 mM NaCl). Exogenous B relieved oxidative stress by enhancing antioxidant defense system components, such as ascorbate (AsA) levels, AsA/dehydroascorbate ratios, glutathione (GSH) levels, the GSH and glutathione disulfide ratios, and ascorbate peroxidase, monodehydroascorbate reductase, and dehydroascorbate reductase activities. B also enhanced the methylglyoxal detoxification process by upregulation of the components of the glyoxalase system in salt-stressed plants. Overall, B supplementation enhanced antioxidant defense and glyoxalase system components to alleviate oxidative stress and MG toxicity induced by salt stress. B also improved the physiology of salt-affected soybean plants.
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Affiliation(s)
- Hesham F. Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.F.A.); (H.S.A.-Z.); (K.R.H.)
| | - Kamrun Nahar
- Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh;
| | - Hassan S. Al-Zahrani
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.F.A.); (H.S.A.-Z.); (K.R.H.)
| | - Khalid Rehman Hakeem
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.F.A.); (H.S.A.-Z.); (K.R.H.)
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
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Hasanuzzaman M, Raihan MRH, Masud AAC, Rahman K, Nowroz F, Rahman M, Nahar K, Fujita M. Regulation of Reactive Oxygen Species and Antioxidant Defense in Plants under Salinity. Int J Mol Sci 2021; 22:ijms22179326. [PMID: 34502233 PMCID: PMC8430727 DOI: 10.3390/ijms22179326] [Citation(s) in RCA: 118] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 02/07/2023] Open
Abstract
The generation of oxygen radicals and their derivatives, known as reactive oxygen species, (ROS) is a part of the signaling process in higher plants at lower concentrations, but at higher concentrations, those ROS cause oxidative stress. Salinity-induced osmotic stress and ionic stress trigger the overproduction of ROS and, ultimately, result in oxidative damage to cell organelles and membrane components, and at severe levels, they cause cell and plant death. The antioxidant defense system protects the plant from salt-induced oxidative damage by detoxifying the ROS and also by maintaining the balance of ROS generation under salt stress. Different plant hormones and genes are also associated with the signaling and antioxidant defense system to protect plants when they are exposed to salt stress. Salt-induced ROS overgeneration is one of the major reasons for hampering the morpho-physiological and biochemical activities of plants which can be largely restored through enhancing the antioxidant defense system that detoxifies ROS. In this review, we discuss the salt-induced generation of ROS, oxidative stress and antioxidant defense of plants under salinity.
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Affiliation(s)
- Mirza Hasanuzzaman
- Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; (M.R.H.R.); (A.A.C.M.); (K.R.); (F.N.); (M.R.)
- Correspondence: (M.H.); (M.F.)
| | - Md. Rakib Hossain Raihan
- Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; (M.R.H.R.); (A.A.C.M.); (K.R.); (F.N.); (M.R.)
| | - Abdul Awal Chowdhury Masud
- Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; (M.R.H.R.); (A.A.C.M.); (K.R.); (F.N.); (M.R.)
| | - Khussboo Rahman
- Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; (M.R.H.R.); (A.A.C.M.); (K.R.); (F.N.); (M.R.)
| | - Farzana Nowroz
- Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; (M.R.H.R.); (A.A.C.M.); (K.R.); (F.N.); (M.R.)
| | - Mira Rahman
- Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh; (M.R.H.R.); (A.A.C.M.); (K.R.); (F.N.); (M.R.)
| | - Kamrun Nahar
- Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh;
| | - Masayuki Fujita
- Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Miki-cho 761-0795, Japan
- Correspondence: (M.H.); (M.F.)
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Exogenous Nitric Oxide Reinforces Photosynthetic Efficiency, Osmolyte, Mineral Uptake, Antioxidant, Expression of Stress-Responsive Genes and Ameliorates the Effects of Salinity Stress in Wheat. PLANTS 2021; 10:plants10081693. [PMID: 34451738 PMCID: PMC8400961 DOI: 10.3390/plants10081693] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 12/17/2022]
Abstract
Salinity stress is one of the major environmental constraints responsible for a reduction in agricultural productivity. This study investigated the effect of exogenously applied nitric oxide (NO) (50 μM and 100 μM) in protecting wheat plants from NaCl-induced oxidative damage by modulating protective mechanisms, including osmolyte accumulation and the antioxidant system. Exogenously sourced NO proved effective in ameliorating the deleterious effects of salinity on the growth parameters studied. NO was beneficial in improving the photosynthetic efficiency, stomatal conductance, and chlorophyll content in normal and NaCl-treated wheat plants. Moreover, NO-treated plants maintained a greater accumulation of proline and soluble sugars, leading to higher relative water content maintenance. Exogenous-sourced NO at both concentrations up-regulated the antioxidant system for averting the NaCl-mediated oxidative damage on membranes. The activity of antioxidant enzymes increased the protection of membrane structural and functional integrity and photosynthetic efficiency. NO application imparted a marked effect on uptake of key mineral elements such as nitrogen (N), potassium (K), and calcium (Ca) with a concomitant reduction in the deleterious ions such as Na+. Greater K and reduced Na uptake in NO-treated plants lead to a considerable decline in the Na/K ratio. Enhancing of salt tolerance by NO was concomitant with an obvious down-regulation in the relative expression of SOS1, NHX1, AQP, and OSM-34, while D2-protein was up-regulated.
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Imran M, Hussain S, He L, Ashraf MF, Ihtisham M, Warraich EA, Tang X. Molybdenum-Induced Regulation of Antioxidant Defense-Mitigated Cadmium Stress in Aromatic Rice and Improved Crop Growth, Yield, and Quality Traits. Antioxidants (Basel) 2021; 10:antiox10060838. [PMID: 34073960 PMCID: PMC8225192 DOI: 10.3390/antiox10060838] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
Cadmium (Cd) stress causes serious disruptions in plant metabolism, physio-biochemical responses, crop yield, and grain quality characteristics. A pot experiment was conducted to investigate the role of molybdenum (Mo) in mitigating Cd-induced adversities on plant growth, yield attributes, and grain quality characteristics of a popular aromatic rice cultivar ‘Xiangyaxiangzhan’. The Mo was applied at 0.15 mg kg−1 soil in both control (no Cd) and Cd-contaminated (100 mg kg−1) soils. A treatment with Mo-free (−Mo) soil was also maintained for comparison. The results showed that Cd toxicity significantly (p < 0.05) reduced plant dry biomass, grain yield, photosynthetic efficiency, and pigment contents, and impaired chloroplast ultra-structural configuration and simultaneously destabilized the plant metabolism owing to higher accumulation of hydrogen peroxide, electrolyte leakage, and malondialdehyde contents. However, Mo supply improved grain yield and 2-acetyl-1-pyrroline content by 64.75% and 77.09%, respectively, under Cd stress, suggesting that Mo supply mitigated Cd-provoked negative effects on yield attributes and grain quality of aromatic rice. Moreover, Mo supply enhanced photosynthesis, proline, and soluble protein content, and also strengthened plant metabolism and antioxidant defense through maintaining higher activities and transcript abundance of ROS-detoxifying enzymes at the vegetative, reproductive, and maturity stages of aromatic rice plants under Cd toxicity. Collectively, our findings indicated that Mo supply strengthened plant metabolism at prominent growth stages through an improved enzymatic and non-enzymatic antioxidant defense system, thereby increasing grain yield and quality characteristics of aromatic rice under Cd toxicity.
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Affiliation(s)
- Muhammad Imran
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.I.); (L.H.)
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangzhou Key Laboratory for Science and Technology of Aromatic Rice, Guangzhou 510642, China
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture Faisalabad, Punjab 38040, Pakistan; (S.H.); (E.A.W.)
| | - Longxin He
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.I.); (L.H.)
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangzhou Key Laboratory for Science and Technology of Aromatic Rice, Guangzhou 510642, China
| | | | - Muhammad Ihtisham
- College of Landscape Architecture, Chengdu Campus, Sichuan Agricultural University, Wenjiang 611100, China;
| | - Ejaz Ahmad Warraich
- Department of Agronomy, University of Agriculture Faisalabad, Punjab 38040, Pakistan; (S.H.); (E.A.W.)
| | - Xiangru Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.I.); (L.H.)
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangzhou Key Laboratory for Science and Technology of Aromatic Rice, Guangzhou 510642, China
- Correspondence: author:
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