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Gao J, Zhu Y, Zeng L, Liu X, Yang Y, Zhou Y. Recent advances on environmental behavior of Cu-based nanomaterials in soil-plant system: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 361:121289. [PMID: 38820797 DOI: 10.1016/j.jenvman.2024.121289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
In recent years, copper-based nanomaterials (Cu-based NMs) have shown great potential in promoting agriculture development due to their special physicochemical characteristics. With the mass production and overuse of Cu-based NMs, there are potential effects on the soil-plant environment. Soil organisms, especially soil microorganisms, play a significant part in terrestrial or soil ecosystems; plants, as indirect organisms with soil-related Cu-based NMs, may affect human health through plant agricultural products. Understanding the accumulation and transformation of Cu-based NMs in soil-plant systems, as well as their ecotoxicological effects and potential mechanisms, is a prerequisite for the scientific assessment of environmental risks and safe application. Therefore, based on the current literature, this review: (i) introduces the accumulation and transformation behaviors of Cu-based NMs in soil and plant systems; (ii) focuses on the ecotoxicological effects of Cu-based NMs on a variety of organisms (microorganisms, invertebrates, and plants); (iii) reveals their corresponding toxicity mechanisms. It appears from studies hitherto made that both Cu-based NMs and released Cu2+ may be the main reasons for toxicity. When Cu-based NMs enter the soil-plant environment, their intrinsic physicochemical properties, along with various environmental factors, could also affect their transport, transformation, and biotoxicity. Therefore, we should push for intensifying the multi-approach research that focuses on the behaviors of Cu-based NMs in terrestrial exposure environments, and mitigates their toxicity to ensure the promotion of Cu-based NMs.
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Affiliation(s)
- Jieyu Gao
- College of Resources and Environment, Yangtze University, Wuhan, 430100, China
| | - Yi Zhu
- College of Resources and Environment, Yangtze University, Wuhan, 430100, China.
| | - Lingfeng Zeng
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Xin Liu
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China.
| | - Yuan Yang
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
| | - Yaoyu Zhou
- Hunan International Scientific and Technological Cooperation Base of Agricultural Typical Pollution Remediation and Wetland Protection, College of Environment and Ecology, Hunan Agricultural University, Changsha, 410128, China
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Zhang Y, Li H, Qiu Y, Liu Y. Bioavailability and Toxicity of nano Copper Oxide to Pakchoi (Brassica Campestris L.) as Compared with bulk Copper Oxide and Ionic Copper. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 112:52. [PMID: 38565801 DOI: 10.1007/s00128-024-03882-1] [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: 09/13/2023] [Accepted: 03/07/2024] [Indexed: 04/04/2024]
Abstract
The increasing use of copper oxide nano particles (nCuO) as nano-fertilizers and pesticides have raised concerns over their impact on soil environment and agricultural products. In this study, two nCuO with different shapes, namely spherical nCuO (CuO NPs) and tubular nCuO (CuO NTs), were selected to investigate their bioavailability and toxicity to pakchoi in two soils with different properties. At the meantime, CuO bulk particles (CuO BPs) and Cu(NO3)2 were used for comparison. Results showed that all the Cu treatments increased the DTPA extractable (DTPA-Cu) concentrations in GD soil (acidic) more than in HN soil (alkaline). The DTPA-Cu concentrations increased in the order of Cu(NO3)2 ≈ CuO NPs > CuO BPs ≈ CuO NTs in GD soil and Cu(NO3)2 > CuO NPs > CuO BPs ≈ CuO NTs in HN soil. While for the contents of Cu in the aerial parts of pakchoi, the order is CuO NPs > Cu(NO3)2 > CuO NTs ≈ CuO BPs in GD soil and CuO NPs ≈ Cu(NO3)2 > CuO BPs ≈ CuO NTs in HN soil. Only CuO NPs reduced pakchoi biomass in GD soil. There are no significant difference among CuO NPs, CuO BPs, and Cu(NO3)2 in reducing the chlorophyll contents in pakchoi in HN soil, whereas in GD soil, CuO NPs and CuO BPs led to significantly lower chlorophyll contents in pakchoi compared to Cu(NO3)2. Additionally, CuO NPs and Cu(NO3)2 increased Mn and Mo in pakchoi leaf in HN soil, while increased Zn in pakchoi leaf in GD soil. These results indicated that CuO NPs showed higher or comparable toxicity and bioavailability to pakchoi compared with Cu(NO3)2 depending on soil properties, and nCuO are more easily to be transferred from roots to the aerial parts than CuO BPs and Cu(NO3)2.
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Affiliation(s)
- Yuqing Zhang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Helian Li
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
| | - Yanhua Qiu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Yinghao Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
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Karami-Eshkaftaki Z, Saei-Dehkordi S, Albadi J, Moradi M, Saei-Dehkordi SS. Coated composite paper with nano-chitosan/cinnamon essential oil-nanoemulsion containing grafted CNC@ZnO nanohybrid; synthesis, characterization and inhibitory activity on Escherichia coli biofilm developed on grey zucchini. Int J Biol Macromol 2024; 258:128981. [PMID: 38158064 DOI: 10.1016/j.ijbiomac.2023.128981] [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: 10/02/2023] [Revised: 12/03/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
This investigation aims to highlight the applicability of a potent eco-friendly developed composite film to combat the Escherichia coli biofilm formed in a model food system. ZnO nanoparticles (NPs) synthesized using green methods were anchored on the surface of cellulose nanocrystals (CNCs). Subsequently, nano-chitosan (NCh) solutions were used to disperse the synthesized nanoparticles and cinnamon essential oil (CEO). These solutions, containing various concentrations of CNC@ZnO NPs and CEO, were sequentially coated onto cellulosic papers to inhibit Escherichia coli biofilms on grey zucchini slices. Six films were developed, and Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, biodegradation, and mechanical properties were assessed. The film containing 5 % nano-emulsified CEO + 3 % dispersed CNC@ZnO nano-hybrid in an NCh solution was selected for further testing since it exhibited the largest zone of inhibition (34.32 mm) against E. coli and the highest anti-biofilm activity on biofilms developed on glass surfaces. The efficacy of the film against biofilms on zucchini surfaces was temperature-dependent. During 60 h, the selected film resulted in log reductions of approximately 4.5 logs, 2.85 logs, and 1.57 logs at 10 °C, 25 °C, and 37 °C, respectively. Applying the selected film onto zucchini surfaces containing biofilm structures leads to the disappearance of the distinctive three-dimensional biofilm framework. This innovative anti-biofilm film offers considerable potential in combatting biofilm issues on food surfaces. The film also preserved the sensory quality of zucchini evaluated for up to 60 days.
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Affiliation(s)
- Zahra Karami-Eshkaftaki
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord 34141, Iran
| | - Siavash Saei-Dehkordi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord 34141, Iran.
| | - Jalal Albadi
- Department of Chemistry, Faculty of Science, Shahrekord University, Shahrekord 34141, Iran
| | - Mehran Moradi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - S Saeid Saei-Dehkordi
- PhD graduate, Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran
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Pagano L, Rossi R, White JC, Marmiroli N, Marmiroli M. Nanomaterials biotransformation: In planta mechanisms of action. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 318:120834. [PMID: 36493932 DOI: 10.1016/j.envpol.2022.120834] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/25/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Research on engineered nanomaterials (ENMs) exposure has continued to expand rapidly, with a focus on uncovering the underlying mechanisms. The EU largely limits the number and the type of organisms that can be used for experimental testing through the 3R normative. There are different routes through which ENMs can enter the soil-plant system: this includes the agricultural application of sewage sludges, and the distribution of nano-enabled agrochemicals. However, a thorough understanding of the physiological and molecular implications of ENMs dispersion and chronic low-dose exposure remains elusive, thus requiring new evidence and a more mechanistic overview of pathways and major effectors involved in plants. Plants can offer a reliable alternative to conventional model systems to elucidate the concept of ENM biotransformation within tissues and organs, as a crucial step in understanding the mechanisms of ENM-organism interaction. To facilitate the understanding of the physico-chemical forms involved in plant response, synchrotron-based techniques have added new potential perspectives in studying the interactions between ENMs and biota. These techniques are providing new insights on the interactions between ENMs and biomolecules. The present review discusses the principal outcomes for ENMs after intake by plants, including possible routes of biotransformation which make their final fate less uncertain, and therefore require further investigation.
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Affiliation(s)
- Luca Pagano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy
| | - Riccardo Rossi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy; Centro Interdipartimentale per L'Energia e L'Ambiente (CIDEA), University of Parma, 43124, Parma, Italy
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT, 06504, USA
| | - Nelson Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy; Consorzio Interuniversitario Nazionale per le Scienze Ambientali (CINSA), University of Parma, 43124, Parma, Italy
| | - Marta Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy; Interdepartmental Centre for Food Safety, Technologies and Innovation for Agri-food (SITEIA.PARMA), 43124, Parma, Italy.
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Behtash F, Abedini F, Ahmadi H, Mosavi SB, Aghaee A, Morshedloo MR, Lorenzo JM. Zinc Application Mitigates Copper Toxicity by Regulating Cu Uptake, Activity of Antioxidant Enzymes, and Improving Physiological Characteristics in Summer Squash. Antioxidants (Basel) 2022; 11:antiox11091688. [PMID: 36139763 PMCID: PMC9495343 DOI: 10.3390/antiox11091688] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Zinc (Zn) and copper (Cu) are essential micronutrients for the plant’s growth, development, and metabolism, but in high concentrations, the elements disrupt normal metabolic processes. The present study investigated the effects of different concentrations (added to a Hogland-based solution) of zinc (control, 5, 10 mg L−1 ZnSO4) and copper (control, 0.1, 0.2 mg L−1 CuSO4) on the growth characteristics and biochemical indices of summer squash (Cucurbita pepo L.). Compared with control, a single application of Cu or Zn at both concentrations significantly declined fruit yield, growth traits, pigments content, and high content of these minerals and values of stress-related indices. Increased Cu concentration in the nutritional solutions reduced the activity of ascorbate peroxidase (APX) and guaiacol peroxidase (GPX). Copper at high concentrations intensified ROS production, aggravated oxidative stresses, and decreased the plant yield and productivity. Nonetheless, combining Cu and Zn could alleviate stress intensity by boosting antioxidant enzymes, redox regulation, and a resultant diminishment in the content of H2O2, proline, malondialdehyde, and minerals. The obtained results corroborate that the co-application of zinc in Cu-contaminated areas can improve the plant’s economic yield and physiological parameters by hindering copper toxicity and enhancing the photosynthetic capacity.
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Affiliation(s)
- Farhad Behtash
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh 83111-55181, Iran
- Correspondence: (F.B.); (J.M.L.); Tel.: +34-988548277 (J.M.L.)
| | - Fatemeh Abedini
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh 83111-55181, Iran
| | - Hosein Ahmadi
- Department of Horticulture Science, College of Agriculture and Natural Resources, University of Tehran, Karaj 77871, Iran
| | - Seyed Bahman Mosavi
- Department of Soil Science and Engineering, Faculty of Agriculture, University of Maragheh, Maragheh 83111-55181, Iran
| | - Ahmad Aghaee
- Department of Biology, Faculty of Science, University of Maragheh, Maragheh 83111-55181, Iran
| | - Mohammad Reza Morshedloo
- Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh 83111-55181, Iran
| | - Jose M. Lorenzo
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain
- Área de Tecnoloxía dos Alimentos, Facultade de Ciencias, Universidade de Vigo, 32004 Ourense, Spain
- Correspondence: (F.B.); (J.M.L.); Tel.: +34-988548277 (J.M.L.)
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Kusiak M, Oleszczuk P, Jośko I. Cross-examination of engineered nanomaterials in crop production: Application and related implications. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127374. [PMID: 34879568 DOI: 10.1016/j.jhazmat.2021.127374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
The review presents the current knowledge on the development and implementation of nanotechnology in crop production, giving particular attention to potential opportunities and challenges of the use of nano-sensors, nano-pesticides, and nano-fertilizers. Due to the size-dependent properties, e.g. high reactivity, targeted and controlled delivery of active ingredients, engineered nanomaterials (ENMs) are expected to be more efficient agrochemicals than conventional agents. Growing production and usage of ENMs result in the spread of ENMs in the environment. Because plants constitute an important component of the agri-ecosystem, they are subjected to the ENMs activity. A number of studies have confirmed the uptake and translocation of ENMs by plants as well as their positive/negative effects on plants. Here, these endpoints are briefly summarized to show the diversity of plant responses to ENMs. The review includes a detailed molecular analysis of ENMs-plant interactions. The transcriptomics, proteomics and metabolomics tools have been very recently employed to explore ENMs-induced effects in planta. The omics approach allows a comprehensive understanding of the specific machinery of ENMs occurring at the molecular level. The summary of data will be valuable in defining future studies on the ENMs-plant system, which is crucial for developing a suitable strategy for the ENMs usage.
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Affiliation(s)
- Magdalena Kusiak
- Institute of Plant Genetics, Breeding and Biotechnology, Faculty of Agrobioengineering, University of Life Sciences, Lublin, Poland
| | - Patryk Oleszczuk
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - Izabela Jośko
- Institute of Plant Genetics, Breeding and Biotechnology, Faculty of Agrobioengineering, University of Life Sciences, Lublin, Poland.
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Li M, Xu G, Huang F, Hou S, Liu B, Yu Y. Influence of nano CuO on uptake and translocation of bifenthrin in rape (Brassica napus L.). Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Rawat S, Cota-Ruiz K, Dou H, Pullagurala VLR, Zuverza-Mena N, White JC, Niu G, Sharma N, Hernandez-Viezcas JA, Peralta-Videa JR, Gardea-Torresdey JL. Soil-Weathered CuO Nanoparticles Compromise Foliar Health and Pigment Production in Spinach ( Spinacia oleracea). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13504-13512. [PMID: 33555877 DOI: 10.1021/acs.est.0c06548] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, spinach plants exposed to fresh/unweathered (UW) or weathered (W) copper compounds in soil were analyzed for growth and nutritional composition. Plants were exposed for 45 days to freshly prepared or soil-aged (35 days) nanoparticulate CuO (nCuO), bulk-scale CuO (bCuO), or CuSO4 at 0 (control), 400, 400, and 40 mg/kg of soil, respectively. Foliar health, gas exchange, pigment content (chlorophyll and carotenoid), catalase and ascorbate peroxidase enzymes, gene expression, and Cu bioaccumulation were evaluated along with SEM imagery for select samples. Foliar biomass was higher in UW control (84%) and in UW ionic treatment (87%), compared to the corresponding W treatments (p ≤ 0.1). Root catalase activity was increased by 110% in UW bCuO treatment as compared to the W counterpart; the value for the W ionic treatment was increased by 2167% compared to the UW counterpart (p ≤ 0.05). At 20 days post-transplantation, W nCuO-exposed plants had ∼56% lower carotenoid content compared to both W control and the UW counterpart (p ≤ 0.05). The findings indicate that over the full life cycle of spinach plant the weathering process significantly deteriorates leaf pigment production under CuO exposure in particular and foliar health in general.
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Affiliation(s)
- Swati Rawat
- Environmental Science and Engineering Ph.D. Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Keni Cota-Ruiz
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Haijie Dou
- Texas A&M AgriLife Research and Extension Centre at Dallas, 17360 Coit Road, Dallas, TX-75252, United States
| | - Venkata L R Pullagurala
- Environmental Science and Engineering Ph.D. Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Nubia Zuverza-Mena
- Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, Connecticut 06511, United States
| | - Jason C White
- Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, Connecticut 06511, United States
| | - Genhua Niu
- Texas A&M AgriLife Research and Extension Centre at Dallas, 17360 Coit Road, Dallas, TX-75252, United States
| | - Nilesh Sharma
- Department of Biology, Western Kentucky University, Bowling Green, Kentucky 42101, United States
| | - Jose A Hernandez-Viezcas
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Jose R Peralta-Videa
- Environmental Science and Engineering Ph.D. Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
| | - Jorge L Gardea-Torresdey
- Environmental Science and Engineering Ph.D. Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
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Majumdar S, Long RW, Kirkwood JS, Minakova AS, Keller AA. Unraveling Metabolic and Proteomic Features in Soybean Plants in Response to Copper Hydroxide Nanowires Compared to a Commercial Fertilizer. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13477-13489. [PMID: 34240865 DOI: 10.1021/acs.est.1c00839] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Mechanistic understanding of the interaction of copper-based nanomaterials with crops is crucial for exploring their application in precision agriculture and their implications on plant health. We investigated the biological response of soybean (Glycine max) plants to the foliar application of copper hydroxide nanowires (CNWs) at realistic exposure concentrations. A commercial copper based-fungicide (Kocide), dissolved copper ions, and untreated controls were used for comparison to identify unique features at physiological, cellular, and molecular levels. After 32 d of exposure to CNW (0.36, 1.8, and 9 mg CNW/plant), the newly developed tissues accumulated significantly high levels of Cu (18-60 μg/g) compared to Kocide (10 μg/g); however, the rate of Cu translocation from the site of CNW treatment to other tissues was slower compared to other Cu treatments. Like Kocide, CNW exposure at medium and high doses altered Co, Mn, Zn, and Fe accumulation in the tissues and enhanced photosynthetic activities. The proteomic and metabolomic analyses of leaves from CNW-treated soybean plants suggest a dose-dependent response, resulting in the activation of major biological processes, including photosynthesis, energy production, fatty acid metabolism, lignin biosynthesis, and carbohydrate metabolism. In contrast to CNW treatments, Kocide exposure resulted in increased oxidative stress response and amino acid metabolism activation.
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Affiliation(s)
- Sanghamitra Majumdar
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), Santa Barbara, California 93106, United States
| | - Randall W Long
- Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, California 93106, United States
| | - Jay S Kirkwood
- Institute for Integrative Genome Biology, Department of Botany and Plant Sciences, University of California, Riverside, California 92521, United States
| | - Anastasiia S Minakova
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
- University of California Center for Environmental Implications of Nanotechnology (UC CEIN), Santa Barbara, California 93106, United States
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Marmiroli M, Pagano L, Rossi R, De La Torre-Roche R, Lepore GO, Ruotolo R, Gariani G, Bonanni V, Pollastri S, Puri A, Gianoncelli A, Aquilanti G, d'Acapito F, White JC, Marmiroli N. Copper Oxide Nanomaterial Fate in Plant Tissue: Nanoscale Impacts on Reproductive Tissues. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:10769-10783. [PMID: 34308629 DOI: 10.1021/acs.est.1c01123] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A thorough understanding of the implications of chronic low-dose exposure to engineered nanomaterials through the food chain is lacking. The present study aimed to characterize such a response in Cucurbita pepo L. (zucchini) upon exposure to a potential nanoscale fertilizer: copper oxide (CuO) nanoparticles. Zucchini was grown in soil amended with nano-CuO, bulk CuO (100 mg Kg-1), and CuSO4 (320 mg Kg-1) from germination to flowering (60 days). Nano-CuO treatment had no impact on plant morphology or growth nor pollen formation and viability. The uptake of Cu was comparable in the plant tissues under all treatments. RNA-seq analyses on vegetative and reproductive tissues highlighted common and nanoscale-specific components of the response. Mitochondrial and chloroplast functions were uniquely modulated in response to nanomaterial exposure as compared with conventional bulk and salt forms. X-ray absorption spectroscopy showed that the Cu local structure changed upon nano-CuO internalization, suggesting potential nanoparticle biotransformation within the plant tissues. These findings demonstrate the potential positive physiological, cellular, and molecular response related to nano-CuO application as a plant fertilizer, highlighting the differential mechanisms involved in the exposure to Cu in nanoscale, bulk, or salt forms. Nano-CuO uniquely stimulates plant response in a way that can minimize agrochemical inputs to the environment and therefore could be an important strategy in nanoenabled agriculture.
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Affiliation(s)
- Marta Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Luca Pagano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Riccardo Rossi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Roberto De La Torre-Roche
- The Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, Connecticut 06504, United States
| | | | - Roberta Ruotolo
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
| | - Gianluca Gariani
- Elettra, Sincrotrone Trieste, Strada Statale 14 km 1635 in AREA Science Park, Trieste 34149, Italy
| | - Valentina Bonanni
- Elettra, Sincrotrone Trieste, Strada Statale 14 km 1635 in AREA Science Park, Trieste 34149, Italy
| | - Simone Pollastri
- Elettra, Sincrotrone Trieste, Strada Statale 14 km 1635 in AREA Science Park, Trieste 34149, Italy
| | - Alessandro Puri
- CNR-IOM-OGG c/o ESRF-The European Synchrotron, 71 Avenue des Martyrs CS 40220, Grenoble Cédex 9 F-38043, France
| | - Alessandra Gianoncelli
- Elettra, Sincrotrone Trieste, Strada Statale 14 km 1635 in AREA Science Park, Trieste 34149, Italy
| | - Giuliana Aquilanti
- Elettra, Sincrotrone Trieste, Strada Statale 14 km 1635 in AREA Science Park, Trieste 34149, Italy
| | - Francesco d'Acapito
- CNR-IOM-OGG c/o ESRF-The European Synchrotron, 71 Avenue des Martyrs CS 40220, Grenoble Cédex 9 F-38043, France
| | - Jason C White
- The Connecticut Agricultural Experiment Station, 123 Huntington Street, New Haven, Connecticut 06504, United States
| | - Nelson Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, Parma 43124, Italy
- Consorzio Interuniversitario Nazionale per le Scienze Ambientali (CINSA), University of Parma, Parma 43124, Italy
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Ahmed F, Javed B, Razzaq A, Mashwani Z. Applications of copper and silver nanoparticles on wheat plants to induce drought tolerance and increase yield. IET Nanobiotechnol 2021; 15:68-78. [PMID: 34694725 PMCID: PMC8675830 DOI: 10.1049/nbt2.12002] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/19/2020] [Accepted: 09/28/2020] [Indexed: 12/16/2022] Open
Affiliation(s)
- Farooq Ahmed
- Department of Agronomy PMAS‐Arid Agriculture University Rawalpindi Punjab Pakistan
| | - Bilal Javed
- Department of Botany PMAS‐Arid Agriculture University Rawalpindi Punjab Pakistan
| | - Abdul Razzaq
- Department of Agronomy PMAS‐Arid Agriculture University Rawalpindi Punjab Pakistan
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12
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Kumar V, Pandita S, Singh Sidhu GP, Sharma A, Khanna K, Kaur P, Bali AS, Setia R. Copper bioavailability, uptake, toxicity and tolerance in plants: A comprehensive review. CHEMOSPHERE 2021; 262:127810. [PMID: 32763578 DOI: 10.1016/j.chemosphere.2020.127810] [Citation(s) in RCA: 127] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/14/2020] [Accepted: 07/21/2020] [Indexed: 05/04/2023]
Abstract
Copper (Cu) is an essential element for humans and plants when present in lesser amount, while in excessive amounts it exerts detrimental effects. There subsists a narrow difference amid the indispensable, positive and detrimental concentration of Cu in living system, which substantially alters with Cu speciation, and form of living organisms. Consequently, it is vital to monitor its bioavailability, speciation, exposure levels and routes in the living organisms. The ingestion of Cu-laced food crops is the key source of this heavy metal toxicity in humans. Hence, it is necessary to appraise the biogeochemical behaviour of Cu in soil-plant system with esteem to their quantity and speciation. On the basis of existing research, this appraisal traces a probable connexion midst: Cu levels, sources, chemistry, speciation and bioavailability in the soil. Besides, the functions of protein transporters in soil-plant Cu transport, and the detrimental effect of Cu on morphological, physiological and nutrient uptake in plants has also been discussed in the current manuscript. Mechanisms related to detoxification strategies like antioxidative response and generation of glutathione and phytochelatins to combat Cu-induced toxicity in plants is discussed as well. We also delimits the Cu accretion in food crops and allied health perils from soils encompassing less or high Cu quantity. Finally, an overview of various techniques involved in the reclamation and restoration of Cu-contaminated soils has been provided.
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Affiliation(s)
- Vinod Kumar
- Department of Botany, Government Degree College, Ramban, Jammu, 182144, India.
| | - Shevita Pandita
- Department of Botany, University of Jammu, Jammu and Kashmir, India
| | - Gagan Preet Singh Sidhu
- Centre for Applied Biology in Environment Sciences, Kurukshetra University, Kurukshetra, 136119, India
| | - Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, 311300, China
| | - Kanika Khanna
- Independent Researcher, House No.282, Lane no. 3, Friends Colony, Opposite DAV College, Jalandhar, 144008, Punjab, India
| | - Parminder Kaur
- Independent Researcher, House No. 472, Ward No. 8, Dhariwal, Gurdaspur, 143519, Punjab, India
| | - Aditi Shreeya Bali
- Department of Botany, Dyal Singh College, Karnal, Haryana, 132001, India
| | - Raj Setia
- Punjab Remote Sensing Centre, Ludhiana, India
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13
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Xiong T, Zhang T, Xian Y, Kang Z, Zhang S, Dumat C, Shahid M, Li S. Foliar uptake, biotransformation, and impact of CuO nanoparticles in Lactuca sativa L. var. ramosa Hort. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:423-439. [PMID: 32990874 DOI: 10.1007/s10653-020-00734-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Plant leaves can intercept and directly absorb nanoparticles (NPs) that deposit on their surface, which can lead severe phytotoxicity. However, there is a large blind spot when it comes to the fate and phytotoxicity of NPs after leaf exposure, even though foliar uptake is likely to occur. In this study, lettuce leaves (Lactuca sativa L. var. ramosa Hort.) were exposed to different concentrations of copper-oxide NPs (CuO-NPs, 0, 100, and 1000 mg L-1) for 5, 10, and 15 days. Foliar uptake, subcellular distribution, chemical forms, and impact of CuO-NPs on nutrient status, antioxidant systems, and lettuce growth were examined. Substantially elevated Cu levels were observed in lettuce leaves (up to 6350 mg kg-1), which was one magnitude greater than that in the roots (up to 525 mg kg-1). Cu translocation factors from leaves to roots ranged from 1.80 to 15.6%. The application of CuO-NPs severely inhibited lettuce growth and altered the nutrient status in plants (especially Mn, K, and Ca). Moreover, CuO-NPs increased H2O2 generation, malonaldehyde level (on the 5th and 10th day of exposure), and catalase activity (on the 15th day of exposure) in lettuce leaves. The Cu concentrations in subcellular fractions were ranked: cell wall ≈ organelles > soluble fraction in lettuce leaves, and organelles > cell wall > soluble fraction in lettuce roots. Undissolved Cu forms were predominant in lettuce, which may have helped to reduce the Cu's mobility and phytotoxicity in the plant. The findings of this study will be of great interest in areas with high levels of metal-NPs in the atmosphere.
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Affiliation(s)
- Tiantian Xiong
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Ting Zhang
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Yuanhong Xian
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Zhuangzhuang Kang
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Shasha Zhang
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Camille Dumat
- Centre d'Etude et de Recherche Travail Organisation Pouvoir (CERTOP), UMR5044, Université Toulouse-Jean Jaurès, 5 allée Antonio Machado, 31058, Toulouse Cedex 9, France
- INP-ENSAT, Université de Toulouse, Avenue de l'Agrobiopole, 31326, Auzeville-Tolosane, France
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Shaoshan Li
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, School of Life Science, South China Normal University, Guangzhou, 510631, China.
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14
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Cota-Ruiz K, Ye Y, Valdes C, Deng C, Wang Y, Hernández-Viezcas JA, Duarte-Gardea M, Gardea-Torresdey JL. Copper nanowires as nanofertilizers for alfalfa plants: Understanding nano-bio systems interactions from microbial genomics, plant molecular responses and spectroscopic studies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140572. [PMID: 32623177 DOI: 10.1016/j.scitotenv.2020.140572] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/26/2020] [Accepted: 06/26/2020] [Indexed: 05/20/2023]
Abstract
The recent application of nano copper (Cu) compounds in the agrosystem has shown potential to improve the physiological performance and agronomical parameters of crops. We grew alfalfa (Medicago sativa) in potting mix amended with bulk, nano, and ionic Cu compounds at 80 and 280 mg Cu/kg; then, we evaluated plant performance at physiological and molecular levels. Plants treated with bulk/nano Cu presented better agronomical responses. The P and S content was reduced in bulk and ionic Cu-exposed plants, compared to controls (p ≤ .05). All Cu forms increased the content of Fe and Zn in roots and Fe in leaves, compared to controls (p ≤ .05). Leaf-superoxide dismutase expression was augmented ~27-fold and rubisco mRNA was unaffected in bulk/nano Cu-treated plants, compared to controls (p ≤ .05). Bulk/nano Cu incremented the relative abundance of microorganisms involved in the elemental uptake. These results indicate that nano Cu improved the physiology of alfalfa and can be considered as potential nanofertilizers.
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Affiliation(s)
- Keni Cota-Ruiz
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Yuqing Ye
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Carolina Valdes
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Chaoyi Deng
- Environmental Science and Engineering Ph.D. program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Yi Wang
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - José A Hernández-Viezcas
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
| | - Maria Duarte-Gardea
- The University of Texas at El Paso, College of Health Sciences, Department of Public Health Sciences, 500 W University Ave, El Paso, TX 79902, USA.
| | - Jorge L Gardea-Torresdey
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA; Environmental Science and Engineering Ph.D. program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, USA.
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15
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Wang W, Ren Y, He J, Zhang L, Wang X, Cui Z. Impact of copper oxide nanoparticles on the germination, seedling growth, and physiological responses in Brassica pekinensis L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31505-31515. [PMID: 32495199 DOI: 10.1007/s11356-020-09338-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 05/18/2020] [Indexed: 05/27/2023]
Abstract
Wide application of nanoparticles causes considerable environmental, health, and safety problems. However, their potential impact and mechanisms on plant growth are not completely clear. In the present study, the effects of different concentration of copper oxide nanoparticles (nCuO) on seed germination and seedling growth, as well as physiological parameters of Brassica pekinensis L., were investigated. The seeds were exposed to 10-, 100-, and 1000-mg L-1 nCuO suspensions and 0.8-mg L-1 Cu2+ released from 1000-mg L-1 nCuO for 7 day. The results showed that nCuO did not affect the germination rate, germination potential, and germination index of B. pekinensis but significantly affected the vitality index. The growth of roots and shoots of B. pekinensis was promoted at 10-mg L-1 nCuO, while they were inhibited under 1000-mg L-1 nCuO and Cu2+ ion treatments, and roots suffered more damage than shoots. Cu content in shoots and roots of B. pekinensis increased with increasing concentrations of nCuO, which is significantly higher in roots as compared with shoots. Roots and shoots accumulated more Cu under nCuO treatments compared with Cu2+ ion treatment. nCuO treatments led to significant lignification in roots of B. pekinensis. Furthermore, nCuO increased in the contents of soluble sugar and protein in shoots, while nCuO at 1000 mg L-1 significantly inhibited the content of soluble protein in roots. In addition, concentration-dependent augmentation of lipid peroxidation, hydrogen peroxide and superoxide generation, and antioxidant enzyme activity were noticed in shoots and roots of B. pekinensis seedlings under nCuO and Cu2+ ion treatments. Altogether, the results strongly suggested that the phytotoxicity of nCuO in B. pekinensis was caused by both the nanoparticles itself and the released Cu2+ ions.
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Affiliation(s)
- Wei Wang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China
- Jiangsu Petrochemical Safety and Environmental Protection Engineering Research Center, Changzhou, 213164, Jiangsu, People's Republic of China
| | - Yanfang Ren
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China.
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China.
- Jiangsu Petrochemical Safety and Environmental Protection Engineering Research Center, Changzhou, 213164, Jiangsu, People's Republic of China.
| | - Junyu He
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China.
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China.
- Jiangsu Petrochemical Safety and Environmental Protection Engineering Research Center, Changzhou, 213164, Jiangsu, People's Republic of China.
| | - Luyun Zhang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China
- College of Agriculture, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Xiyue Wang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China
| | - Zhiwen Cui
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China
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16
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Zafar H, Aziz T, Khan B, Mannan A, Rehman RU, Zia M. CuO and ZnO Nanoparticle Application in Synthetic Soil Modulates Morphology, Nutritional Contents, and Metal Analysis of Brassica nigra. ACS OMEGA 2020; 5:13566-13577. [PMID: 32566821 PMCID: PMC7301370 DOI: 10.1021/acsomega.0c00030] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 05/21/2020] [Indexed: 05/02/2023]
Abstract
Black mustard (Brassica nigra) was grown in pots amended with 41 nm ZnO (200-600 mg/kg soil) and 47 nm CuO (12.5-50 mg/kg soil) nanoparticles (NPs) to analyze growth response and yield characteristics. B. nigra seed germination was not affected by CuO NPs, but significant toxicity was observed by ZnO NP treatment. Both NPs significantly increased the growth profile of B. nigra, i.e., the stem height, number of leaves, average leaf area, number of branches, and number of nodes per plant. Application of ZnO and CuO NPs brought a significant dose-dependent decrease in primary root length; however, the number of secondary roots increased in the presence of CuO NPs. The average number of flowers and pods per plant significantly increased in the presence of CuO NPs. The seed yield, average seed weight per plant, and seed diameter parameters were observed to be better in the presence of CuO NPs as compared with ZnO NPs. Total protein contents and glucosinolates increased in the seeds grown in the NP-amended soil, while total oil contents decreased. Oil analysis depicted that oleic acid and linolenic acid percentage decreased while erucic acid percentage increased in seeds in the presence of both NPs in the soil. An atomic absorption spectrophotometer showed accumulation of Cu and Zn in B. nigra in the following order: root > stem > leaves > seeds. The study concludes that CuO and ZnO NPs have detrimental effect on the B. nigra plant and yield. The release of NPs and type of metal in NPs might also have a positive effect on the plant; however, their concentration in the soil also matters.
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Affiliation(s)
- Hira Zafar
- Department
of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Tehmina Aziz
- Department
of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Bakhtawar Khan
- Department
of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Abdul Mannan
- Department
of Pharmacy, COMSATS Institute of Information
Technology, Abbottabad 22060, Pakistan
| | - Riaz ur Rehman
- Institute
of Floriculture and Horticulture, Government of Punjab, Rawalpindi 44000, Pakistan
| | - Muhammad Zia
- Department
of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
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17
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Wang W, Liu J, Ren Y, Zhang L, Xue Y, Zhang L, He J. Phytotoxicity Assessment of Copper Oxide Nanoparticles on the Germination, Early Seedling Growth, and Physiological Responses in Oryza sativa L. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 104:770-777. [PMID: 32328666 DOI: 10.1007/s00128-020-02850-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
The increasing utilization of copper oxide nanoparticles (CuO NPs) and their release into the environment has made it imperative to elucidate their impact on the ecological system including plants. However, their potential toxic impact and mechanisms on plant growth are still unclear. The aim of this study was to investigate the effects of CuO NPs and released Cu ions on seed germination and early seedling growth, as well as physiological and biochemical parameters of Oryza sativa. The results showed that CuO NPs at high concentration significantly inhibited seed germination and early seedling growth. The toxicity of CuO NPs originated from the particulate NPs rather than the released Cu2+. The phytotoxicity of CuO NPs to rice seed germination and seedling growth probably induced by high Cu accumulation along with the lignification and oxidative damage. The work presented here will increase our knowledge of phytotoxicity of CuO NPs.
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Affiliation(s)
- Wei Wang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China
| | - Jiaqi Liu
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China
| | - Yanfang Ren
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China.
- College of Agriculture, Guizhou University, Guiyang, 550025, China.
| | - Liming Zhang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China
| | - Yuhao Xue
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China
| | - Luyun Zhang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China
| | - Junyu He
- School of Environmental and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China.
- College of Agriculture, Guizhou University, Guiyang, 550025, China.
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