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Hosseinifard M, Jurga N, Brandmeier JC, Farka Z, Hlaváček A, Gorris HH, Grzyb T, Ekner-Grzyb A. Influence of surface modification and size of lanthanide-doped upconverting nanoparticles on wheat seedlings. CHEMOSPHERE 2024; 347:140629. [PMID: 37949184 DOI: 10.1016/j.chemosphere.2023.140629] [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: 09/01/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
In recent years, nanotechnology has found widespread applications in environmental monitoring, medical applications, plant fertilisers, cosmetics and others. Therefore, it is important to study nanomaterials' influence and subsequent risks to the environment and organisms (from production to disposal). Therefore, in the present study, the toxic effects of two surface modifications (poly (ethylene glycol)-neridronate, PEG-Ner and poly (acrylic acid), PAA) in comparison to unmodified, 26 nm- and 52 nm-sized core@shell lanthanide-doped upconverting nanoparticles (UCNPs, NaYF4:Yb3+,Er3+@NaYF4) were analysed. Wheat seedlings (Triticum aestivum L.) were chosen as a model organism since this species is one of the most widely cultivated crops. The influence of UCNPs (at concentrations of 0, 10, 50, and 100 μg/mL) on germination percentage, germination rate and growth was studied based on morphological parameters such as root number, root and hypocotyl length, and root and hypocotyl mass. In addition, an assay based on Evans blue staining was conducted to analyse damaged cell membranes and cell death. The type, size and concentration of UCNPs influenced the growth but not the germination of wheat. 52-nm-sized ligand-free UCNPs and the 26-nm-sized UCNPs/PAA decreased plant growth. Moreover, the ligand-free 26-nm-sized UCNPs interacted with the root cell membranes of seedlings. No significant changes were observable regarding viability (tetrazolium chloride reduction assay), oxidative stress and electrolyte leakage from root cells in plants incubated with ligand-free 26-nm-sized UCNPs. Overall, we have shown that the ligand-free UCNPs (of both sizes) had the strongest toxic effect; PAA-modified UCNPs were toxic only at smaller sizes and PEG-Ner-modified UCNPs had no toxic impact. Therefore, PEG-Ner was identified as the safest surface compound among the UCNPs investigated in the study, which may neutralise the harmful effects of nanoparticles on plants.
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Affiliation(s)
- Marjanossadat Hosseinifard
- Adam Mickiewicz University, Poznań, Institute of Experimental Biology, Faculty of Biology, Department of Plant Ecophysiology, Poznań, Poland; University of Tehran, Faculty of Agricultural Technology (Aburaihan), Department of Agronomy and Plant Breeding Sciences, Imam Reza Boulevard, Tehran, Iran
| | - Natalia Jurga
- Adam Mickiewicz University, Poznań, Faculty of Chemistry, Department of Rare Earths, Poznań, Poland
| | - Julian C Brandmeier
- Masaryk University, Faculty of Science, Department of Biochemistry, Brno, Czech Republic; University of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, Regensburg, Germany
| | - Zdeněk Farka
- Masaryk University, Faculty of Science, Department of Biochemistry, Brno, Czech Republic
| | - Antonín Hlaváček
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno, Czech Republic
| | - Hans H Gorris
- Masaryk University, Faculty of Science, Department of Biochemistry, Brno, Czech Republic
| | - Tomasz Grzyb
- Adam Mickiewicz University, Poznań, Faculty of Chemistry, Department of Rare Earths, Poznań, Poland
| | - Anna Ekner-Grzyb
- Adam Mickiewicz University, Poznań, Institute of Experimental Biology, Faculty of Biology, Department of Plant Ecophysiology, Poznań, Poland.
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Silva PMMD, Alkimin GDD, Camparotto NG, Prediger P, Nunes B. Toxicological effects resulting from co-exposure to nanomaterials and to a β-blocker pharmaceutical drug in the non-target macrophyte species Lemna minor. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 322:121166. [PMID: 36738879 DOI: 10.1016/j.envpol.2023.121166] [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: 08/04/2022] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The wide use of carbon-based materials for various purposes leads to their discharge in the aquatic systems, and simultaneous occurrence with other environmental contaminants, such as pharmaceutical drugs. This co-occurrence can adversely affect exposed aquatic organisms. Up to now, few studies have considered the simultaneous toxicity of nanomaterials, and organic contaminants, including pharmaceutical drugs, towards aquatic plants. Thus, this study aimed to assess the toxic effects of the co-exposure of propranolol (PRO), and nanomaterials based on cellulose nanocrystal, and graphene oxide in the aquatic macrophyte Lemna minor. The observed effects included reduction of growth rate in 13% in co-exposure 1 (nanomaterials + PRO 5 μg L-1), and 52-64% in co-exposure 2 (nanomaterials + PRO 51.3 mg L-1), fresh weight reduction of 94-97% in co-exposure 2 compared to control group, and increased pigment production caused by co-exposure treatments. The analysis of PCA showed that co-exposure 1 (nanomaterials + PRO 5 μg L-1) positively affected growth, and fresh weight, and co-exposure 2 positively affected pigments content. The results suggested that the presence of nanomaterials enhanced the overall toxicity of PRO, exerting deleterious effects in the freshwater plant L. minor, suggesting that this higher toxicity resulting from co-exposure was a consequence of the interaction between nanomaterials and PRO.
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Affiliation(s)
| | | | | | - Patricia Prediger
- Faculdade de Tecnologia, Universidade Estadual de Campinas, Campus De Limeira, Limeira, Brazil
| | - Bruno Nunes
- Centro de Estudos Do Ambiente e Do Mar (CESAM), Universidade De Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal; Departamento De Biologia, Universidade De Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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3
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Zhu YX, Weng YN, Zhang SY, Liu LJ, Du ST. The nitrate uptake and growth of wheat were more inhibited under single-layer graphene oxide stress compared to multi-layer graphene oxide. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 247:114229. [PMID: 36306614 DOI: 10.1016/j.ecoenv.2022.114229] [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: 08/06/2022] [Revised: 10/16/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Although the phytotoxicity of graphene-based materials has been investigated extensively, the effects of different graphene-based materials on nutrient uptake in plants remain unclear. Here, we analyzed the differences in phytotoxicity between single-layer graphene oxide (sGO) and multi-layer graphene oxide (mGO) by analyzing the growth status and nitrate (NO3-) accumulation in wheat plants at 0, 100, 200, 400, and 800 mg L-1 graphene oxide supply. Both sGO and mGO displayed concentration-dependent inhibitory effects on biomass, root length, number of lateral roots, and nitrogen (N) nutrient status. Treatment with 400 mg L-1 sGO caused 0.9-, 1.3-, and 1-fold higher reductions in NO3--N, assimilated N, and total N concentrations in roots, respectively, than mGO treatment. Analysis of root oxidative stress and in situ NO3- uptake revealed that sGO caused more significant damage to the root tip and a lower NO3- net influx rate than mGO. In addition, the expression of NO3- transporter (NRT) genes in roots, including NRT1.5, NRT2.1, NRT2.2, NRT2.3, and NRT2.4, under sGO treatment were lower than those under mGO treatment. Overall, sGO treatment induced a more severe inhibitory effect on root growth and NO3- uptake and accumulation than mGO treatment, accompanied by significant suppression of the expression of NRTs in sGO-treated roots. This study provides a physiological and molecular basis for studying the phytotoxic effects of various sizes of graphene oxide.
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Affiliation(s)
- Ya Xin Zhu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Yi Neng Weng
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Si Yu Zhang
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Li Juan Liu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Shao Ting Du
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China.
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Xiao X, Wang X, Liu L, Chen C, Sha A, Li J. Effects of three graphene-based materials on the growth and photosynthesis of Brassica napus L. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 234:113383. [PMID: 35276609 DOI: 10.1016/j.ecoenv.2022.113383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/27/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
The environmental safety and threats of graphene-based materials (GBMs) to the agroecosystem have attracted increasing attention in recent years. However, the mechanisms underlying the effects of GBMs on plants remain unclear. Here, we investigated the phytotoxicity of reduced graphene oxide (RGO), graphene oxide (GO) and amine-functionalized graphene (G-NH2) on Brassica napus L. The results revealed that RGO impaired photosynthesis mainly by decreasing the chlorophyll content and Rubisco activity. A further gene-level analysis suggested that this effect of RGO might be due to its toxicity on sulfate transmembrane transporter and nitrogen metabolism, which ultimately led to nutrient imbalance. However, GO directly damaged the photosystem by disrupting the chloroplast structure, and a decrease in Rubisco activity indicated that GO also inhibits carbon fixation. Further gene-level analysis demonstrated that GO has toxicity on the chloroplast membrane, photosystem, photosynthethic electron transport and F-type ATPase. In addition, G-NH2 at 10-1000 mg L-1 showed no significant toxicity. These findings shed light on the potential mechanism for the toxicity of GBMs on plants for risk assessment.
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Affiliation(s)
- Xiaolu Xiao
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Science, Wuhan 430062, China
| | - Xiuping Wang
- Analysis and Testing Center, Hebei Normal University of Science and Technology, Qinhuangdao 066000, China
| | - Lixin Liu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Science, Wuhan 430062, China
| | - Chang Chen
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Science, Wuhan 430062, China
| | - Aihua Sha
- Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou 434023, China
| | - Jun Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Oil Crops Research Institute, Chinese Academy of Agricultural Science, Wuhan 430062, China.
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Jiang T, Amadei CA, Lin Y, Gou N, Rahman SM, Lan J, Vecitis CD, Gu AZ. Dependence of Graphene Oxide (GO) Toxicity on Oxidation Level, Elemental Composition, and Size. Int J Mol Sci 2021; 22:ijms221910578. [PMID: 34638921 PMCID: PMC8508828 DOI: 10.3390/ijms221910578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022] Open
Abstract
The mass production of graphene oxide (GO) unavoidably elevates the chance of human exposure, as well as the possibility of release into the environment with high stability, raising public concern as to its potential toxicological risks and the implications for humans and ecosystems. Therefore, a thorough assessment of GO toxicity, including its potential reliance on key physicochemical factors, which is lacking in the literature, is of high significance and importance. In this study, GO toxicity, and its dependence on oxidation level, elemental composition, and size, were comprehensively assessed. A newly established quantitative toxicogenomic-based toxicity testing approach, combined with conventional phenotypic bioassays, were employed. The toxicogenomic assay utilized a GFP-fused yeast reporter library covering key cellular toxicity pathways. The results reveal that, indeed, the elemental composition and size do exert impacts on GO toxicity, while the oxidation level exhibits no significant effects. The UV-treated GO, with significantly higher carbon-carbon groups and carboxyl groups, showed a higher toxicity level, especially in the protein and chemical stress categories. With the decrease in size, the toxicity level of the sonicated GOs tended to increase. It is proposed that the covering and subsequent internalization of GO sheets might be the main mode of action in yeast cells.
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Affiliation(s)
- Tao Jiang
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA; (T.J.); (N.G.); (S.M.R.); (J.L.)
| | - Carlo Alberto Amadei
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; (C.A.A.); (C.D.V.)
| | - Yishan Lin
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA; (T.J.); (N.G.); (S.M.R.); (J.L.)
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China
- Correspondence: (Y.L.); (A.Z.G.)
| | - Na Gou
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA; (T.J.); (N.G.); (S.M.R.); (J.L.)
- School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
| | - Sheikh Mokhlesur Rahman
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA; (T.J.); (N.G.); (S.M.R.); (J.L.)
- Department of Civil Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
| | - Jiaqi Lan
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA; (T.J.); (N.G.); (S.M.R.); (J.L.)
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Chad D. Vecitis
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA; (C.A.A.); (C.D.V.)
| | - April Z. Gu
- School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA
- Correspondence: (Y.L.); (A.Z.G.)
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Xie L, Chen F, Du H, Zhang X, Wang X, Yao G, Xu B. Graphene oxide and indole-3-acetic acid cotreatment regulates the root growth of Brassica napus L. via multiple phytohormone pathways. BMC PLANT BIOLOGY 2020; 20:101. [PMID: 32138661 PMCID: PMC7059361 DOI: 10.1186/s12870-020-2308-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 02/24/2020] [Indexed: 06/02/2023]
Abstract
BACKGROUND Studies have indicated that graphene oxide (GO) could regulated Brassica napus L. root growth via abscisic acid (ABA) and indole-3-acetic acid (IAA). To study the mechanism and interaction between GO and IAA further, B. napus L (Zhongshuang No. 9) seedlings were treated with GO and IAA accordance with a two factor completely randomized design. RESULTS GO and IAA cotreatment significantly regulated the root length, number of adventitious roots, and contents of IAA, cytokinin (CTK) and ABA. Treatment with 25 mg/L GO alone or IAA (> 0.5 mg/L) inhibited root development. IAA cotreatment enhanced the inhibitory role of GO, and the inhibition was strengthened with increased in IAA concentration. GO treatments caused oxidative stress in the plants. The ABA and CTK contents decreased; however, the IAA and gibberellin (GA) contents first increased but then decreased with increasing IAA concentration when IAA was combined with GO compared with GO alone. The 9-cis-epoxycarotenoid dioxygenase (NCED) transcript level strongly increased when the plants were treated with GO. However, the NCED transcript level and ABA concentration gradually decreased with increasing IAA concentration under GO and IAA cotreatment. GO treatments decreased the transcript abundance of steroid 5-alpha-reductase (DET2) and isochorismate synthase 1 (ICS), which are associated with brassinolide (BR) and salicylic acid (SA) biosynthesis, but increased the transcript abundance of brassinosteroid insensitive 1-associated receptor kinase 1 (BAK1), cam-binding protein 60-like G (CBP60) and calmodulin binding protein-like protein 1, which are associated with BR and SA biosynthesis. Last, GO treatment increased the transcript abundance of 1-aminocyclopropane-1-carboxylic acid synthase 2 (ACS2), which is associated with the ethylene (ETH) pathway. CONCLUSIONS Treatment with 25 mg/L GO or IAA (> 0.5 mg/L) inhibited root development. However, IAA and GO cotreatment enhanced the inhibitory role of GO, and this inhibition was strengthened with increased IAA concentration. IAA is a key factor in the response of B. napus L to GO and the responses of B. napus to GO and IAA cotreatment involved in multiple pathways, including those involving ABA, IAA, GA, CTK, BR, SA. Specifically, GO and IAA cotreatment affected the GA content in the modulation of B. napus root growth.
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Affiliation(s)
- Lingli Xie
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Life Science, Yangtze University, Jingzhou, Hubei, 434025, P.R. China
| | - Fan Chen
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Life Science, Yangtze University, Jingzhou, Hubei, 434025, P.R. China
| | - Hewei Du
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Life Science, Yangtze University, Jingzhou, Hubei, 434025, P.R. China
| | - Xuekun Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei, 430062, P.R. China
| | - Xingang Wang
- Hubei Provincial Seed Management Bureau, Wuhan, Hubei, 430070, P.R. China
| | - Guoxin Yao
- School of Life and Science Technology, Hubei Engineering University, Xiaogan, Hubei, 432000, P.R. China
| | - Benbo Xu
- Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, College of Life Science, Yangtze University, Jingzhou, Hubei, 434025, P.R. China.
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Verma SK, Das AK, Gantait S, Kumar V, Gurel E. Applications of carbon nanomaterials in the plant system: A perspective view on the pros and cons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 667:485-499. [PMID: 30833247 DOI: 10.1016/j.scitotenv.2019.02.409] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 05/20/2023]
Abstract
With the remarkable development in the field of nanotechnology, carbon-based nanomaterials (CNMs) have been widely used for numerous applications in different areas of the plant system. The current understanding about the CNMs' accumulation, translocation, plant growth responses, and stress modulations in the plant system is far from complete. There have been relentless efforts by the researchers worldwide in order to acquire newer insights into the plant-CNMs interactions and the consequences. The present review intends to update the reader with the status of the impacts of the different CNMs on plant growth. Research reports from the plant biotechnologists have documented mixed effects (which are dependent on CNMs' concentration) of the CNMs' exposure on plants ranging from enhanced crop yield to acute cytotoxicity. The growth and yield pattern vary from species to species and are dependent on the dosage of the CNMs applied. Studies found an increase in vegetative growth and yield of fruit/seed at lower concentration of CNMs, but a decrease in these observables were also noted when higher concentrations of CNMs were used. In general, at lower concentrations, CNMs were found to be effective in enhancing (water uptake, water transport, seed germination, nitrogenase, photosystem and antioxidant activities), activating (water channels proteins) and promoting (nutrition absorption); all these change when concentrations are raised. All these aspects have been reviewed thoroughly in this article, with a focus on the recent updates on the role of the CNMs in augmenting or retarding plant growth. Sections have been devoted to the various features of the CNMs and their roles in inducing plant growth, phytotoxic responses of the plants and overall crop improvement. Concluding remarks have been added to propose future directions of research on the CNMs-plant interactions and also to sound a warning on the use of CNMs in agriculture.
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Affiliation(s)
- Sandeep Kumar Verma
- Institute of Biological Science, SAGE University, Baypass Road, Kailod Kartal, Indore 452020, Madhya Pradesh, India; Biotechnology Laboratory, Department of Biology, Bolu Abant Izzet Baysal University, 14030 Bolu, Turkey.
| | - Ashok Kumar Das
- Department of Industrial Chemistry, College of Applied Sciences, Addis Ababa Science and Technology University, Addis Ababa 16417, Ethiopia
| | - Saikat Gantait
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India
| | - Vinay Kumar
- Department of Biotechnology, Modern College, Savitribai Phule Pune University, Ganeshkhind, Pune 411016, Maharashtra, India
| | - Ekrem Gurel
- Biotechnology Laboratory, Department of Biology, Bolu Abant Izzet Baysal University, 14030 Bolu, Turkey
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Liang L, Tang H, Deng Z, Liu Y, Chen X, Wang H. Ag nanoparticles inhibit the growth of the bryophyte, Physcomitrella patens. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:739-748. [PMID: 30122261 DOI: 10.1016/j.ecoenv.2018.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/03/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
The wide use of Ag nanoparticles (Ag NPs) as antimicrobial agents has resulted in a massive release of Ag NPs into environment, such as water and soil. As bryophytes live ubiquitously in water and soil, their tolerance and response to Ag NPs could be employed as an indicator for the harm of Ag NPs to the environment. Herein, we report the study on the physiological and biochemical responses of bryophytes to Ag NPs with different surface coatings at the gametophyte stages: protonema and leafy gametophyte, by using Physcomitrella patens as a model system. We found that Ag NPs, including AgNPs-B (Ag NPs without surface coating), AgNPs-PVP (Ag NPs coated with poly (N-vinyl-2-pyrrolidone)) and AgNPs-Cit (Ag NPs coated with citrate), were toxic to P. patens in terms of growth and development of the gametophyte. The toxicity was closely related to the concentration and surface coating of Ag NPs, and the growth stage of P. patens. The protonema was more sensitive to Ag NPs than the leafy gametophyte. Ag NPs inhibited the growth of the protonema following the trend of AgNPs-B > AgNPs-Cit > AgNPs-PVP. Ag NPs changed the thylakoid and chlorophyll contents, but did not affect the contents of essential elements in the protonema. At the leafy gametophyte stage, Ag NPs inhibited the growth of P. patens following a different order: AgNPs-Cit > AgNPs-B ≈ AgNPs-PVP. Ag NPs decreased the chlorophyll b content and disturbed the balance of some important essential elements in the leafy gametophytes. Both the dissolved fraction of Ag NPs and Ag NPs per se contributed to the toxicity. This study for the first time reveals the effects of Ag NPs on bryophytes at different growth stages, which calls for more attention to the nanoecotoxicology of Ag NPs.
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Affiliation(s)
- Lin Liang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Huan Tang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Zhaoguo Deng
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yuanfang Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Xing Chen
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China.
| | - Haifang Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China.
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9
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Yang H, Feng S, Ma Q, Ming Z, Bai Y, Chen L, Yang ST. Influence of reduced graphene oxide on the growth, structure and decomposition activity of white-rot fungus Phanerochaete chrysosporium. RSC Adv 2018; 8:5026-5033. [PMID: 35539547 PMCID: PMC9077766 DOI: 10.1039/c7ra12364g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 01/12/2018] [Indexed: 11/22/2022] Open
Abstract
Graphene materials have attracted great interest nowadays due to their large-scale production and wide applications. It is urgent to evaluate the ecological and environmental risk of graphene materials for the healthy development of the graphene industry. Herein, we evaluated the influence of reduced graphene oxide (RGO) on the growth, structure and decomposition activity of white-rot fungus, whose decomposition function is vital for carbon cycle. RGO slightly stimulated the fresh weight and dry weight gains of Phanerochaete chrysosporium. A larger number of fibrous structures were observed at low RGO concentrations in P. chrysosporium, which was consistent with the elongation of cells observed under a transmission electron microscope. RGO did not affect the chemical composition of P. chrysosporium. Moreover, the laccase production of P. chrysosporium was not influenced by RGO. The degradation activities of P. chrysosporium for dye and wood appeared to be promoted slightly, but the differences were insignificant compared to the control. Therefore, RGO had low toxicity to white-rot fungus and was relatively safe for the carbon cycle. RGO stimulated the growth of white-rot fungus and did not influence its degradation activity.![]()
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Affiliation(s)
- Hua Yang
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Shicheng Feng
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Qiang Ma
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Zhu Ming
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Yitong Bai
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Lingyun Chen
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
| | - Sheng-Tao Yang
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- China
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10
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Chen L, Yang S, Liu Y, Mo M, Guan X, Huang L, Sun C, Yang ST, Chang XL. Toxicity of graphene oxide to naked oats (Avena sativa L.) in hydroponic and soil cultures. RSC Adv 2018; 8:15336-15343. [PMID: 35539483 PMCID: PMC9080036 DOI: 10.1039/c8ra01753k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 04/10/2018] [Indexed: 01/09/2023] Open
Abstract
Graphene oxide showed much higher toxicity to plants in hydroponic culture than in soil culture.
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Affiliation(s)
- Lingyun Chen
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
| | - Shengnan Yang
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Ying Liu
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Min Mo
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Xin Guan
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Liu Huang
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Chao Sun
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Sheng-Tao Yang
- College of Chemistry and Environment Protection Engineering
- Southwest Minzu University
- Chengdu 610041
- P. R. China
| | - Xue-Ling Chang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- P. R. China
| |
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