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Qin XL, Zhao YQ, Zhang DJ, Wang KY, Chen WH, Tang ZZ, Chen YE, Yuan S, Ye L, Yuan M. Three species of rape responded to cadmium and melatonin alleviating Cd-toxicity in species-specific strategy. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 354:124178. [PMID: 38763294 DOI: 10.1016/j.envpol.2024.124178] [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: 01/16/2024] [Revised: 04/24/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
Cadmium (Cd) pollution has been a significant concern in heavy metal pollution, prompting plants to adopt various strategies to mitigate its damage. While the response of plants to Cd stress and the impact of exogenous melatonin has received considerable attention, there has been limited focus on the responses of closely related species to these factors. Consequently, our investigation aimed to explore the response of three different species of rape to Cd stress and examine the influence of exogenous melatonin in this scenario. The research findings revealed distinctive responses among the investigated rape species. B. campestris showed the resistance to Cd and exhibited lower Cd absorption and sustained its physiological activity under Cd stress. In contrast, B. juncea accumulated much Cd and increased the amount of anthocyanin to mitigate the Cd-damage. Furthermore, B. napus showed the tolerance to Cd and tended to accumulate Cd in vacuoles under Cd stress, thereby decreasing the Cd damage and leading to higher activity of antioxidant enzymes and photosynthesis. Moreover, the application of exogenous melatonin significantly elevated the melatonin level in plants and mitigated Cd toxicity by promoting the activity of antioxidant enzymes, reducing Cd absorption, enhancing the chelating capacity with Cd, decreasing Cd accumulation in organelles, and reducing its fluidity. Specifically, exogenous melatonin increased the FHAc content in B. campestris, elevated the phytochelatins (PCs) level in B. napus, and stimulated photosynthesis in B. juncea. In summary, the findings underscore the species-specific responses of the three species of rape to both Cd stress and exogenous melatonin, highlighting the potential for tailored mitigation strategies based on the unique characteristics of each species.
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Affiliation(s)
- Xiao-Long Qin
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - Yu-Qing Zhao
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - De-Jun Zhang
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - Ke-Yu Wang
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - Wen-Hui Chen
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - Zi-Zhong Tang
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - Yang-Er Chen
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China
| | - Shu Yuan
- College of Resources, Sichuan Agricultural University, 611130, Chengdu, China
| | - Lin Ye
- College of Animal Science and Technology, Sichuan Agricultural University, 611100, Chengdu, China
| | - Ming Yuan
- College of Life Science, Sichuan Agricultural University, 625014, Ya'an, China; State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, 611130, Chengdu, China.
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Koohi A, Rahdari P, Babakhani B, Asadi M. Foliar-applied melatonin and titanium nanoparticles modulate cadmium (Cd) toxicity through minimizing Cd accumulation and optimizing physiological and biochemical properties in sage (Salvia officinalis L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:45370-45382. [PMID: 38965106 DOI: 10.1007/s11356-024-34126-8] [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: 04/23/2024] [Accepted: 06/21/2024] [Indexed: 07/06/2024]
Abstract
Notwithstanding the fact that melatonin (MT) and titanium nanoparticles (Ti NPs) alone have been widely used recently to modulate cadmium (Cd) stress in plants, there is a gap in the comparative impacts of these materials on lowering Cd toxicity in sage plants. The objective of this study was to determine how foliar application of MT and Ti NPs affected the growth, Cd accumulation, photosynthesis, water content, lipid peroxidation, and essential oil (EO) quality and quantity of sage plants in Cd-contaminated soils. A factorial experiment was conducted using MT at 100 and 200 μM and Ti NPs at 50 and 100 mg L-1 topically, together with Cd toxicity at 10 and 20 mg Cd kg-1 soil. The results showed that Cd toxicity decreased plant growth and enhanced lipid peroxidation. The Cd stress at 20 mg kg-1 soil resulted in increases in Cd root (693%), Cd shoot (429%), electrolyte leakage (EL, 29%), malondialdehyde (MDA, 72%), shoot weight (31%), root weight (27%), chlorophyll (Chl) a + b (26%), relative water content (RWC, 23%), and EO yield (30%). The application of MT and Ti NPs controlled drought stress by reducing MDA and EL, enhancing plant weight, Chl, RWC, and EO production, and minimizing Cd accumulation in plant tissues. The predominant compounds in the EO were α-thujone, 1,8-cineole, β-thujone, camphor, and α-humulene. MT and Ti NPs caused α-thujone to rise, whereas Cd stress caused it to fall. Based on heat map analysis, MDA was the trait that was most sensitive to treatments. In summary, the research emphasizes the possibility of MT and Ti NPs, particularly MT at 200 μM, to mitigate Cd toxicity in sage plants and enhance their biochemical reactions.
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Affiliation(s)
- Atefeh Koohi
- Department of Biology, Tonekabone Branch, Islamic Azad University, Tonekabone, Iran
| | - Parvaneh Rahdari
- Department of Biology, Tonekabone Branch, Islamic Azad University, Tonekabone, Iran.
| | - Babak Babakhani
- Department of Biology, Tonekabone Branch, Islamic Azad University, Tonekabone, Iran
| | - Mahmoud Asadi
- Department of Biology, Tonekabone Branch, Islamic Azad University, Tonekabone, Iran
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Kumar S, Wang S, Wang M, Zeb S, Khan MN, Chen Y, Zhu G, Zhu Z. Enhancement of sweetpotato tolerance to chromium stress through melatonin and glutathione: Insights into photosynthetic efficiency, oxidative defense, and growth parameters. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108509. [PMID: 38461751 DOI: 10.1016/j.plaphy.2024.108509] [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: 12/12/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/12/2024]
Abstract
Melatonin (MT) and reduced glutathione (GSH) roles in mitigating chromium (Cr) toxicity in sweetpotato were explored. Plants, pre-treated with varying MT and GSH doses, were exposed to Cr (40 μM). Cr severely hampered growth by disrupting leaf photosynthesis, root system, and oxidative processes and increased Cr absorption. However, the exogenous application of 1 μM of MT and 2 mM of GSH substantially improved growth parameters by enhancing chlorophyll content, gas exchange (Pn, Tr, Gs, and Ci), and chlorophyll fluorescence (Fv/Fm, ETR, qP, and Y(II)). Furthermore, malondialdehyde (MDA), hydrogen peroxide (H2O2), superoxide ion (O2•-), electrolyte leakage (EL), and Cr uptake by roots (21.6 and 27.3%) and its translocation to shoots were markedly reduced by MT and GSH application, protecting the cell membrane from oxidative damage of Cr-toxicity. Microscopic analysis demonstrated that MT and GSH maintained chloroplast structure and integrity of mesophyll cells; they also enhanced stomatal length, width, and density, strengthening the photosynthetic system and plant growth and biomass. MT and GSH improved osmo-protectants (proline and soluble sugars), gene expression, and enzymatic and non-enzymatic antioxidant activities, mitigating osmotic stress and strengthening plant defenses under Cr stress. Importantly, the efficiency of GSH pre-treatment in reducing Cr-toxicity surpassed that of MT. The findings indicate that MT and GSH alleviate Cr detrimental effects by enhancing photosynthetic organ stability, component accumulation, and resistance to oxidative stress. This study is a valuable resource for plants confronting Cr stress in contaminated soils, but further field validation and detailed molecular exploration are necessary.
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Affiliation(s)
- Sunjeet Kumar
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China
| | - Shihai Wang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China
| | - Mengzhao Wang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China
| | - Shah Zeb
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China
| | - Mohammad Nauman Khan
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China
| | - Yanli Chen
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China
| | - Guopeng Zhu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China.
| | - Zhixin Zhu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China; Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Hainan University, Haikou, 570228, China.
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4
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Hanife S, Namdjoyan S, Kermanian H. Synergistic effects of exogenous glutathione and calcium on ascorbate-glutathione cycle and glutathione-associated enzymes upregulation under lead stress in Brassica napus L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108979-108991. [PMID: 37759048 DOI: 10.1007/s11356-023-30000-1] [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: 08/17/2022] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
Heavy metals (HMs) such as lead (Pb) pose a significant threat to global food security due to their adverse effect on the health of crop plants. Calcium (Ca) and Glutathione (GSH) are signaling molecules to scavenge free radicals in HM-stressed plants. In this study, GSH and Ca's role is examined in supporting canola seedlings against Pb toxicity. In a pot experiment, the administration of Glutathione (GSH, 0 and 100 µM) and/or calcium (CaCl2, 0 and 500 µM) in canola seedlings was examined under lead stress (0 and 100 µM of Pb(NO3)2. Compared with the control samples, Pb treatment increased MDA and H2O2 values by 61 and 53%, respectively, indicative of oxidative burst. However, using a combination of GSH and Ca lowered oxidative stress in Pb-stressed plants by an approximately twofold reduction in MDA and H2O2 content. Total PC content increased by 78% in Pb-stressed plants, suggesting that these chelating peptides diminish the damaging effects of Pb. Interestingly, further boosts in total PC levels were recorded in Pb-stressed plants treated with GSH and Ca concurrently. The addition of exogenous GSH and Ca to Pb-stressed canola plants limited Pb uptake and translocation and improved ascorbate-glutathione cycle performance. Moreover, compared to their separate usage, the co-treatment of exogenous GSH and Ca strengthened the GSH pool by increasing the activities of enzymes involved in GSH metabolism. The findings demonstrate that exogenous GSH and Ca modulate GSH synthesis, metabolism, and redox homeostasis synergistically to enhance resistance to oxidative stress generated by Pb.
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Affiliation(s)
- Shima Hanife
- Department of Biology and Biochemistry, Science Faculty, Shahr-E-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Shahram Namdjoyan
- Department of Biology, Faculty of Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
| | - Hossein Kermanian
- Department of Biorefinery Engineering, Faculty of New Technologies and Engineering, Shahid Beheshti University, Tehran, Iran
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5
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Menhas S, Yang X, Hayat K, Bundschuh J, Chen X, Hui N, Zhang D, Chu S, Zhou Y, Ali EF, Shahid M, Rinklebe J, Lee SS, Shaheen SM, Zhou P. Pleiotropic melatonin-mediated responses on growth and cadmium phytoextraction of Brassica napus: A bioecological trial for enhancing phytoremediation of soil cadmium. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131862. [PMID: 37329597 DOI: 10.1016/j.jhazmat.2023.131862] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/04/2023] [Accepted: 06/13/2023] [Indexed: 06/19/2023]
Abstract
Melatonin (MT) has recently gained significant scientific interest, though its mechanism of action in enhancing plant vigor, cadmium (Cd) tolerance, and Cd phytoremediation processes are poorly understood. Therefore, here we investigated the beneficial role of MT in improving growth and Cd remediation potential of rapeseed (Brassica napus). Plants, with or without MT (200 µM L-1), were subjected to Cd stress (30 mg kg1). Without MT, higher Cd accumulation (up to 99%) negatively affected plant growth and developmental feature as well as altered expression of several key genes (DEGs) involved in different molecular pathways of B. napus. As compared to only Cd-stressed counterparts, MT-treated plants exhibited better physiological performance as indicated by improved leaf photosynthetic and gaseous exchange processes (3-48%) followed by plant growth (up to 50%), fresh plant biomass (up to 45%), dry plant biomass (up to 32%), and growth tolerance indices (up to 50%) under Cd exposure. MT application enhanced Cd tolerance and phytoremediation capacity of B. napus by augmenting (1) Cd accumulation in plant tissues and its translocation to above-ground parts (by up to 45.0%), (2) Cd distribution in the leaf cell wall (by up to 42%), and (3) Cd detoxification by elevating phytochelatins (by up to 8%) and metallothioneins (by upto 14%) biosynthesis, in comparison to Cd-treated plants. MT played a protective role in stabilizing hydrogen peroxide and malondialdehyde levels in the tissue of the Cd-treated plants by enhancing the content of osmolytes (proline and total soluble protein) and activities of antioxidant enzymes (SOD, CAT, APX and GR). Transcriptomic analysis revealed that MT regulated 1809 differentially expressed genes (828 up and 981 down) together with 297 commonly expressed DEGs (CK vs Cd and Cd vs CdMT groups) involved in plant-pathogen interaction pathway, protein processing in the endoplasmic reticulum pathway, mitogen-activated protein kinase signaling pathway, and plant hormone signal transduction pathway which ultimately promoted plant growth and Cd remediation potential in the Cd-stressed plants. These results provide insights into the unexplored pleiotropic beneficial action of MT in enhancing in the growth and Cd phytoextraction potential of B. napus, paving the way for developing Cd-tolerant oilseed crops with higher remediation capacity as a bioecological trial for enhancing phytoremediation of hazardous toxic metals in the environment.
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Affiliation(s)
- Saiqa Menhas
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China
| | - Xijia Yang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China
| | - Kashif Hayat
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Pollution Exposure and Health Intervention, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou 310015, PR China
| | - Jochen Bundschuh
- Department of Earth and Environmental Sciences, National Chung Cheng University, Taiwan, ROC; School of Civil Engineering and Surveying, University of Southern Queensland, Australia
| | - Xunfeng Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China
| | - Nan Hui
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China
| | - Dan Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China
| | - Shaohua Chu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China
| | - Yuanfei Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China
| | - Esmat F Ali
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari 61100, Pakistan
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany
| | - Sang Soo Lee
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, South Korea.
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; King Abdulaziz University, Faculty of meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, Jeddah 21589, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516 Kafr El-Sheikh, Egypt.
| | - Pei Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, PR China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai 200240, PR China.
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Awan SA, Khan I, Rizwan M, Irshad MA, Xiaosan W, Zhang X, Huang L. Reduction in the cadmium (Cd) accumulation and toxicity in pearl millet (Pennisetum glaucum L.) by regulating physio-biochemical and antioxidant defense system via soil and foliar application of melatonin. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 328:121658. [PMID: 37075919 DOI: 10.1016/j.envpol.2023.121658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/12/2023] [Accepted: 04/16/2023] [Indexed: 05/03/2023]
Abstract
Cadmium (Cd) is among the toxic pollutants that harms the both animals and plants. The natural antioxidant, melatonin can improve Cd-stress tolerance but its potential role in reducing Cd stress and resilience mechanisms in pearl millet (Pennisetum glaucum L.) is remain unclear. The present study suggests that Cd causes severe oxidative damage by decreasing photosynthesis, and increasing reactive oxygen species (ROS), malondialdehyde content (MDA), and Cd content in different parts of pearl millet. However, exogenous melatonin (soil application and foliar treatment) mitigated the Cd toxicity and enhanced the growth, antioxidant defense system, and differentially regulated the expression of antioxidant-responsive genes i. e superoxide dismutase SOD-[Fe] 2, Fe-superoxide dismutase, Peroxiredoxin 2C, and L-ascorbate peroxidase-6. The results showed that foliar melatonin at F-200/50 significantly increased the plant height, chlorophyll a, b, a+b and carotenoids by 128%, 121%, 150%, 122%, and 69% over the Cd treatment, respectively. The soil and foliar melatonin at S-100/50 and F-100/50 reduced the ROS by 36%, and 44%, and MDA by 42% and 51% over the Cd treatment, respectively. Moreover, F200/50 significantly boosted the activities of antioxidant enzymes i. e SOD by 141%, CAT 298%, POD 117%, and APX 155% over the Cd treatment. Similarly, a significant reduction in Cd content in root, stem, and leaf was found on exposure to higher concentrations of exogenous melatonin. These findings suggest that exogenous melatonin may significantly and differentially improve the tolerance to Cd stress in crop plants. However, field applications, type of plant species, concentration of dose, and type of stress may vary with the degree of tolerance in crop plants.
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Affiliation(s)
- Samrah Afzal Awan
- College of Grassland Science & Technology, Sichuan Agricultural University, Chengdu, 611130, China; College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, China
| | - Imran Khan
- College of Grassland Science & Technology, Sichuan Agricultural University, Chengdu, 611130, China; State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Muhammad Rizwan
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Atif Irshad
- Department of Environmental Sciences, The University of Lahore, Lahore, Pakistan
| | - Wang Xiaosan
- College of Grassland Science & Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xinquan Zhang
- College of Grassland Science & Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Linkai Huang
- College of Grassland Science & Technology, Sichuan Agricultural University, Chengdu, 611130, China.
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Ghouri F, Shahid MJ, Liu J, Lai M, Sun L, Wu J, Liu X, Ali S, Shahid MQ. Polyploidy and zinc oxide nanoparticles alleviated Cd toxicity in rice by modulating oxidative stress and expression levels of sucrose and metal-transporter genes. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130991. [PMID: 36860085 DOI: 10.1016/j.jhazmat.2023.130991] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/04/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
The Cd toxicity causes severe perturbations to the plant's growth and development. Here, polyploid and diploid rice lines were treated with zinc-oxide nanoparticles (ZnO-NPs) and Cd, and physiological, cytological and molecular changes were observed. The Cd toxicity significantly reduced plant's growth attributes (such as shoot length, biological yield, dry matter, and chlorophyll contents, which decreased by 19%, 18%, 16%, 19% in polyploid and 35%, 43%, 45% and 43% in diploid rice, respectively), and disturbed the sugar level through the production of electrolytes, hydrogen peroxide, and malondialdehyde. The application of ZnO-NPs significantly alleviated the Cd toxicity in both lines by improving the antioxidant enzymes activities and physiochemical attributes. Semi-thin sections and transmission electron microscope revealed more and different types of abnormalities in diploid rice compared to polyploid rice under Cd stress. Moreover, RNA-seq analysis identified several differentially expressed genes between polyploid and diploid rice, especially metal and sucrose transporter genes. The GO, COG, and KEGG analyses revealed ploidy-specific pathways associated with plant growth and development. In conclusion, ZnO-NPs application to both rice lines significantly improved plant growth and decreased Cd accumulation in plants. We inferred that polyploid rice is more resistant to Cd stress than diploid rice.
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Affiliation(s)
- Fozia Ghouri
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Munazzam Jawad Shahid
- Department of Environmental Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Jingwen Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Mingyu Lai
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Lixia Sun
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Jinwen Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xiangdong Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China.
| | - Shafaqat Ali
- Department of Environmental Sciences, Government College University, Faisalabad 38000, Pakistan; Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan.
| | - Muhammad Qasim Shahid
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China; College of Agriculture, South China Agricultural University, Guangzhou 510642, China.
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8
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Khan A, Jie Z, Xiangjun K, Ullah N, Short AW, Diao Y, Zhou R, Xiong YC. Pre treatment of melatonin rescues cotton seedlings from cadmium toxicity by regulating key physio-biochemical and molecular pathways. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130530. [PMID: 36463746 DOI: 10.1016/j.jhazmat.2022.130530] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 05/26/2023]
Abstract
Melatonin, a plant/animal origin hormone, regulates plant response to abiotic stresses by protecting them from oxidative damage. This study identified physiochemical and molecular mechanism of melatonin-induced cadmium (Cd) stress tolerance and detoxification in cotton seedlings. Cotton seedlings, with or without melatonin (15 µM) pretreatment, were subjected to Cd (100 µM) stress in a hydroponic medium for eight days. We found that higher cellular Cd accumulation in leaf tissues significantly inhibited the growth and physiology of cotton seedlings. In contrast, melatonin-treated seedlings maintained leaf photosynthetic capacity, producing relatively higher fresh (17.4%) and dry (19.3%) weights than non-melatonin-treated plants under Cd-contaminated environments. The improved growth and leaf functioning were strongly linked with the melatonin-induced repression of Cd transporter genes (LOC107894197, LOC107955631, LOC107899273) in roots. Thus, melatonin induced downregulation of the Cd transporter genes further inhibited Cd ion transport towards leaf tissues. This suggests that the differentially expressed transporter genes (DEG) are key drivers of the melatonin-mediated regulation of Cd transportation and sequestration in cotton. Melatonin also protected cotton seedlings from Cd-induced oxidative injury by reducing tissues malondialdehyde (MDA) and hydrogen peroxide (H2O2) levels and increasing the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) enzymes. Transcriptomic analysis revealed that melatonin activated mitogen-activated protein kinase (MAPK) signaling pathways to simulate stomatal adjustment and photosynthesis in Cd-stressed leaves. Further, melatonin protects intercellular organs, particularly ribosomes, from Cd-induced oxidative damage by promoting ribosomal biosynthesis and improving translational efficiency. The findings elucidated the molecular basis of melatonin-mediated Cd stress tolerance in plants and provided a key for the effective strategy of Cd accumulation in cotton.
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Affiliation(s)
- Aziz Khan
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China; School of Life Science and Technology, Henan Institute of Science and Technology, Hualan St. 90, Xinxiang 453003, China
| | - Zheng Jie
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Anyang 450000, China; Hainan Yazhou Bay Seed Laboratory, Sanya 572024, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agriculture Sciences, Sanya 572024, China
| | - Kong Xiangjun
- School of Life Science and Technology, Henan Institute of Science and Technology, Hualan St. 90, Xinxiang 453003, China
| | - Najeeb Ullah
- Faculty of Science, University Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei Darussalam
| | - Aidan W Short
- Institute of Ecology and Evolution, 5289 University of Oregon, Eugene, OR 97403, USA
| | - Yong Diao
- Sinopharm Wuhan Plasma-derived Biotherapies Co., Ltd, Wuhan, China
| | - Ruiyang Zhou
- School of Life Science and Technology, Henan Institute of Science and Technology, Hualan St. 90, Xinxiang 453003, China.
| | - You-Cai Xiong
- State Key Laboratory of Grassland Agro-ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China.
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Raza Khan A, Fan X, Salam A, Azhar W, Ulhassan Z, Qi J, Liaquat F, Yang S, Gan Y. Melatonin-mediated resistance to copper oxide nanoparticles-induced toxicity by regulating the photosynthetic apparatus, cellular damages and antioxidant defense system in maize seedlings. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120639. [PMID: 36372367 DOI: 10.1016/j.envpol.2022.120639] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/30/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
The pollution of nanoparticles (NPs) has linked with severe negative effects on crop productivity. Thus, effective strategies are needed to mitigate the phytotoxicity of NPs. The aim of present study was to evaluate the efficacy of exogenously applied melatonin (MT) in mitigating the toxic effects of copper oxide nanoparticles (CuO NPs) from maize seedlings. Therefore, we comprehensively investigated the inhibitory effects of MT against CuO NPs-induced toxicity on morpho-physiological, biochemical and ultrastructural levels in maize. Our results show that CuO NPs (300 mg L-1) exposure displayed significantly reduction in all plant growth traits and induced toxicity in maize. Furthermore, 50 μM MT provided maximum plant tolerance against CuO NPs-induced phytotoxicity. It was noticed that MT improved plant growth, biomass, photochemical efficiency (Fv/Fm), chlorophyll contents (Chl a and Chl b), SPAD values and gas exchange attributes (stomatal conductance, net photosynthetic rate, intercellular CO2 concentration and transpiration rate) under CuO NPs stress. In addition, MT enhanced the antioxidant defense system and conferred protection to ultrastructural (mainly chloroplast, thylakoids membrane and plastoglobuli) damages and stomatal closure in maize plants subjected to CuO NPs stress. Together, it can be stated that the exogenous supply of MT improves the resilience of maize plants against the CuO NPs-induced phytotoxicity. Our current findings can be useful for the enhancement of plant growth and yield attributes in CuO NPs-contaminated soils. The reported information can provide insight into the MT pathways that can be used to improve crop stress tolerance in a challenging environment.
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Affiliation(s)
- Ali Raza Khan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Xingming Fan
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China
| | - Abdul Salam
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Wardah Azhar
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Zaid Ulhassan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Jiaxuan Qi
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Fiza Liaquat
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shuaiqi Yang
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Yinbo Gan
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China.
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