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Li X, Yang C, Lin Y, Hu T, Zeng G. Effects of oxytetracycline and zinc ion on nutrient removal and biomass production via microalgal culturing in anaerobic digester effluent. BIORESOURCE TECHNOLOGY 2022; 346:126667. [PMID: 34990858 DOI: 10.1016/j.biortech.2021.126667] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/26/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Removal of nutrients from swine wastewater digester effluent (SWDE) by microalgae Coelastrella sp. and production of Coelastrella sp. were investigated at the presence of oxytetracycline (OTC) and Zn(II). Mechanisms of stress of OTC and Zn(II) on microalgae were discussed via analyzing the removal performance of SWDE and biochemical characteristics of microalgae. Results showed that removal efficiency of ammonia nitrogen and biomass yield of microalgae at the presence of 5000 μg/L of OTC decreased by 13.1% - 50.1% and 28.2% -71.5%, respectively, when Zn concentration was increased from 0.50 mg/L to 5.0 mg/L. The presence of 5.0 mg/L Zn(II) promoted the accumulation of lipids in microalgae, and the presence of 50 μg/L OTC increased unsaturation of fatty acid methyl ester. Content of glutathione and activity of both glutamine synthetase and superoxide dismutase decreased with the increase of OTC concentration, while content of adenosine triphosphatase increased when Zn(II) concentration was also increased.
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Affiliation(s)
- Xiang Li
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, PR China
| | - Chunping Yang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, PR China; Hunan Provincial Environmental Protection Engineering Center for Organic Pollution Control of Urban Water and Wastewater, Changsha, Hunan 410001, PR China; Maoming Engineering Research Center for Organic Pollution Control, Academy of Environmental and Resource Sciences, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, PR China.
| | - Yan Lin
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Tianjue Hu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, PR China
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An Update Report on the Biosafety and Potential Toxicity of Fullerene-Based Nanomaterials toward Aquatic Animals. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:7995223. [PMID: 34336114 PMCID: PMC8313339 DOI: 10.1155/2021/7995223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 06/26/2021] [Indexed: 12/17/2022]
Abstract
Fullerene molecules are composed of carbon in the form of a hollow sphere, tube, or ellipsoid. Since their discovery in 1985, they have gained a lot of attention in many science fields. The unique carbon cage structure of fullerene provides immense scope for derivatization, rendering potential for various industrial applications. Thus, the prospective applications of fullerenes have led to assorted fullerene derivatives. In addition, their unique chemical structure also eases them to be synthesized through various kinds of conjugating techniques, where fullerene can be located either on the backbone or the branch chain. In this review, we have compiled the toxicity and biosafety aspects of fullerene in aquatic organisms since the frequent use of fullerene is likely to come in contact and interact with the aquatic environment and aquatic organisms. According to the current understanding, waterborne exposure to fullerene-based nanomaterials indeed triggers toxicities at cellular, organic, molecular, and neurobehavioral levels.
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Marisa I, Asnicar D, Matozzo V, Martucci A, Finos L, Marin MG. Toxicological effects and bioaccumulation of fullerene C 60 (FC 60) in the marine bivalve Ruditapes philippinarum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111560. [PMID: 33254414 DOI: 10.1016/j.ecoenv.2020.111560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/19/2020] [Accepted: 10/22/2020] [Indexed: 06/12/2023]
Abstract
Fullerene C60 (FC60), with its unique physical properties, has been used in many applications in recent decades. The increased likelihood of direct release into the environment has raised interest in understanding the biological effects of FC60 to aquatic organisms. Nowadays, only few studies have analysed FC60 effects and bioaccumulation in marine organisms following in vivo exposure. To provide new data about FC60 toxicity, Ruditapes philippinarum was selected as target species to assess potential adverse effects of the contaminant. Clams were exposed for 1, 3 and 7 days to predicted environmental concentrations of FC60 (1 and 10 μg/L) and cellular and biochemical responses were evaluated in clams' gills, digestive gland and haemolymph. The FC60 content in gills and digestive gland was determined in all experimental conditions after 7 days of exposure. Results showed an increase in oxidative stress. In particular, a significant modulation in antioxidant enzyme activities, and changes in glutathione S-transferase activity were observed in gills. Moreover, damage to lipids and proteins was detected in FC60-treated (10 µg/L) clams. In digestive gland, slighter variations in antioxidant enzyme activities and damage to molecules were detected. CAT activity was significantly affected throughout the exposure, whereas damage to lipids was evident only at the end of exposure. FC60 accumulation was revealed in both gills and digestive gland, with values up to twelve-fold higher in the latter. Interestingly, haemolymph parameters were slightly affected by FC60 compared to the other tissues investigated. Indeed, only Single Cell Gel Electrophoresis and Neutral Red uptake assays showed increased values in FC60-exposed clams. Moreover, volume and diameter of haemocytes, haemocyte proliferation, and micronucleus assay highlighted significant variations in treated clams, but only in the first phases of exposure, and no changes were detected after 7 days. Our results suggested clam gills as the target tissue for FC60 toxicity under the exposure conditions tested: the high damage detected to lipids and proteins could contribute to long-term problems for the organism.
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Affiliation(s)
- Ilaria Marisa
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Davide Asnicar
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Valerio Matozzo
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy
| | - Alessandro Martucci
- Industrial Engineering Department and INSTM, University of Padova, Via Marzolo 9, 35131 Padova, Italy
| | - Livio Finos
- Department of Developmental Psychology and Socialisation, University of Padova, Via Venezia 8, Padova, Italy
| | - Maria Gabriella Marin
- Department of Biology, University of Padova, Via Ugo Bassi 58/B, 35131 Padova, Italy.
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Li X, Wu S, Yang C, Zeng G. Microalgal and duckweed based constructed wetlands for swine wastewater treatment: A review. BIORESOURCE TECHNOLOGY 2020; 318:123858. [PMID: 32732065 DOI: 10.1016/j.biortech.2020.123858] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/11/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Constructed wetlands for swine wastewater treatment have been one of the most exciting research topics. Usually hydrophytes based constructed wetlands could not adapt well to high concentration of ammonia nitrogen in swine wastewater, while microalgal and duckweed based constructed wetlands are promising for the nutrient removal. In this critical review, the important roles of microalgae and duckweeds played in wastewater treatment in constructed wetlands were first summarized. Performances including biomass growth, nutrient removal capacities and mechanisms of microalgal and duckweed based constructed wetlands were reviewed for swine wastewater treatment. Challenges for the applications of constructed wetlands including microalgal and duckweed based ones were discussed which includes a better understanding and utilization of synergistic effects among microalgae and duckweeds, difficulty and costs in harvesting biomass, applications in various field conditions including low temperatures, and selections of various types of microalgal and duckweed species. Future research needs were also proposed accordingly.
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Affiliation(s)
- Xiang Li
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Shaohua Wu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
| | - Chunping Yang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China; Hunan Provincial Environmental Protection Engineering Center for Organic Pollution Control of Urban Water and Wastewater, Changsha, Hunan 410001, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
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Cazenave J, Ale A, Bacchetta C, Rossi AS. Nanoparticles Toxicity in Fish Models. Curr Pharm Des 2019; 25:3927-3942. [DOI: 10.2174/1381612825666190912165413] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/29/2019] [Indexed: 12/27/2022]
Abstract
The increasing production and use of nanoparticles (NP) have raised concerns regarding the potential
toxicity to human and environmental health. In this review, we address the up to date information on nanotoxicity
using fish as models. Firstly, we carried out a systematic literature search (articles published up to February 2019
in the Scopus database) in order to quantitatively assess the scientific research on nanoparticles, nanotoxicity and
fish. Next, we carried out a narrative synthesis on the main factors and mechanisms involved in NP toxicity in
fish. According to the bibliometric analysis, there is a low contribution of scientific research on nanotoxicity
compared with the general nanoparticles scientific production. The literature search also showed that silver and
titanium NP are the most studied nanomaterials and Danio rerio is the fish species most used. In comparison with
freshwater fish, the effects of nanomaterials on marine fish have been little studied. After a non-systematic literature
analysis, we identified several factors involved in nanotoxicity, as well as the effects and main toxicity
mechanisms of NP on fish. Finally, we highlighted the knowledge gaps and the need for future research.
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Affiliation(s)
- Jimena Cazenave
- Instituto Nacional de Limnologia, CONICET, UNL, Santa Fe, Argentina, Paraje El Pozo, Ciudad Universitaria UNL, 3000 Santa Fe, Argentina
| | - Analía Ale
- Instituto Nacional de Limnologia, CONICET, UNL, Santa Fe, Argentina, Paraje El Pozo, Ciudad Universitaria UNL, 3000 Santa Fe, Argentina
| | - Carla Bacchetta
- Instituto Nacional de Limnologia, CONICET, UNL, Santa Fe, Argentina, Paraje El Pozo, Ciudad Universitaria UNL, 3000 Santa Fe, Argentina
| | - Andrea Silvana Rossi
- Instituto Nacional de Limnologia, CONICET, UNL, Santa Fe, Argentina, Paraje El Pozo, Ciudad Universitaria UNL, 3000 Santa Fe, Argentina
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Liu S, Yu Z, Song X, Cao X. Physiological and photosynthetic responses of Karenia mikimotoi to the modified clay mitigation method. MARINE POLLUTION BULLETIN 2018; 133:491-499. [PMID: 30041342 DOI: 10.1016/j.marpolbul.2018.05.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 05/19/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
Modified clay (MC) removed harmful algae Karenia mikimotoi effectively, and significantly inhibited residual algae growth. Hydrogen peroxides (H2O2) and malondialdehyde (MDA) contents of K. mikimotoi increased significantly after treatment, indicating that MC induced oxidative stress. Moreover, H2O2 content was significantly correlated with cell density, indicating that increased reactive oxygen species (ROS) were likely responsible for the growth inhibition. Further investigation showed that MC caused damage to photosynthesis of residual algae, indicated by decreased maximal photochemical efficiency (Fv/Fm) and performance index (PIABS). The density of reaction center (RC) decreased, indicating that MC induced partially inactivated RCs, then caused residual activated RCs to be over-excited. The electron transport chain was also blocked, indicated by increased WK and VJ, and decreased Sm. These effects of photosystem II (PSII) were supposed to be the main contributors to ROS over-accumulation during photosynthesis. Overall, treatment with MC is an appropriate method for controlling K. mikimotoi blooms.
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Affiliation(s)
- Shuya Liu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiming Yu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xiuxian Song
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xihua Cao
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
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Munk M, Brandão HM, Yéprémian C, Couté A, Ladeira LO, Raposo NRB, Brayner R. Effect of Multi-walled Carbon Nanotubes on Metabolism and Morphology of Filamentous Green Microalgae. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 73:649-658. [PMID: 28687867 DOI: 10.1007/s00244-017-0429-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Multi-walled carbon nanotubes (MWCNTs) have potential applications in the industrial, agricultural, pharmaceutical, medical, and environmental remediation fields. However, many uncertainties exist regarding the environmental implications of engineered nanomaterials. This study examined the effect of the MWCNTs on metabolic status and morphology of filamentous green microalgae Klebsormidium flaccidum. Appropriate concentrations of MWCNT (1, 50, and 100 μg mL-1) were added to a microalgal culture in the exponential growth phase and incubated for 24, 48, 72, and 96 h. Exposure to MWCNT led to reductions in algal growth after 48 h and decreased on cell viability for all experimental endpoints except for 1 µg mL-1 at 24 h and 100 µg mL-1 after 72 h. At 100 µg mL-1, MWCNTs induced reactive oxygen species (ROS) production and had an effect on intracellular adenosine triphosphate (ATP) content depending on concentration and time. No photosynthetic activity variation was observed. Observations by scanning transmission electron microscopy showed cell damage. In conclusion, we have demonstrated that exposure to MWCNTs affects cell metabolism and microalgal cell morphology. To our best knowledge, this is the first case in which MWCNTs exhibit adverse effects on filamentous green microalgae K. flaccidum. These results contribute to elucidate the mechanism of MWCNT nanotoxicity in the bioindicator organism of terrestrial and freshwater habitats.
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Affiliation(s)
- Michele Munk
- Department of Biology, Federal University of Juiz de Fora, José Lourenço Kelmer, Campus Universitário, Juiz De Fora, 36036-900, Brazil.
| | - Humberto M Brandão
- Laboratory of Nanotechnology, Brazilian Agricultural Research Corporation (EMBRAPA), Juiz De Fora, 36038-330, Brazil
| | - Claude Yéprémian
- National Museum of Natural History, Communication Molecules and Adaptation of Microorganisms, UMR 7245, Paris, France
| | - Alain Couté
- National Museum of Natural History, Communication Molecules and Adaptation of Microorganisms, UMR 7245, Paris, France
| | - Luiz O Ladeira
- Department of Physics, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - Nádia R B Raposo
- Nucleus of Analytical Identification and Quantification (NIQUA), Federal University of Juiz de Fora, Juiz De Fora, 36036-900, Brazil
| | - Roberta Brayner
- University of Paris Diderot, Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS), UMR 7086, Paris, France
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Cordeiro LF, Marques BF, Kist LW, Bogo MR, López G, Pagano G, Külkamp-Guerreiro IC, Monserrat JM. Toxicity of fullerene and nanosilver nanomaterials against bacteria associated to the body surface of the estuarine worm Laeonereis acuta (Polychaeta, Nereididae). MARINE ENVIRONMENTAL RESEARCH 2014; 99:52-59. [PMID: 24984272 DOI: 10.1016/j.marenvres.2014.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 05/27/2014] [Accepted: 05/28/2014] [Indexed: 06/03/2023]
Abstract
This study analyzed the growth and biochemical responses of six bacterial colonies isolated from the mucus of the estuarine polychaeta Laeonereis acuta (Nereididae) after exposure to a water suspension of fullerene (nC60) and nanosilver (nAg) separately (0.01; 0.10; and 1.00 mg/L) and together (0.01; 0.10; and 1.00 mg/L of nanosilver and 1.00 mg/L of fullerene added to each nAg concentration). Exposures were performed in darkness during 24 h and then samples were taken from the worms and inoculated on agar during 24 h to analyze colonies growth. After this the material was analyzed biochemically. Colonies growth (tested by wet biomass weight) was inhibited at 0.01 and 0.10 mg/L of nAg and 0.01 and 0.10 mg/L nAg + constant 1.00 mg/L of nC60 (p < 0.05). Lipid peroxidation damage was significant from the control for the concentrations of 0.01 and 0.10 mg/L of nC60 and glutathione-S-transferase (GST) activity was significantly higher for the concentration of 1.00 mg/L mg/L nAg + constant 1.00 mg/L of nC60 (p < 0.05). Although nC60 did not induced growth inhibition, it triggered lipid peroxidation alone and increased GST activity together with nAg.60 Contrary to nC60, nanosilver inhibited bacterial growth, although the biochemical measurements indicate that this response is not due to reactive oxygen species generation.
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Affiliation(s)
- Lucas Freitas Cordeiro
- Instituto de Ciências Biológicas (ICB) - Universidade Federal do Rio Grande-FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada - ICB - FURG, Brazil
| | - Bianca Fell Marques
- Instituto de Ciências Biológicas (ICB) - Universidade Federal do Rio Grande-FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada - ICB - FURG, Brazil
| | - Luiza Wilges Kist
- Laboratório de Biologia Genômica e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, 90619-900 Porto Alegre, RS, Brazil
| | - Maurício Reis Bogo
- Laboratório de Biologia Genômica e Molecular, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga, 6681, 90619-900 Porto Alegre, RS, Brazil; Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), 90035-003 Porto Alegre, RS, Brazil
| | - Gerardo López
- Nanotek S.A., Argentina; Universidad Tecnológica Nacional, Santa Fe, Argentina
| | - Gisela Pagano
- Nanotek S.A., Argentina; Universidad Tecnológica Nacional, Santa Fe, Argentina
| | - Irene Clemes Külkamp-Guerreiro
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Avenida Ipiranga, 2752, 90610-000 Porto Alegre, RS, Brazil
| | - José Maria Monserrat
- Instituto de Ciências Biológicas (ICB) - Universidade Federal do Rio Grande-FURG, Rio Grande, RS, Brazil; Programa de Pós-Graduação em Ciências Fisiológicas-Fisiologia Animal Comparada - ICB - FURG, Brazil; Instituto Nacional de Ciência e Tecnologia Nanomateriais de Carbono, Belo Horizonte, MG, Brazil; Rede de Nanotoxicologia (MCTI/CNPq), Nanotoxicologia ocupacional e ambiental: subsídios científicos para estabelecer marcos regulatórios e avaliação de riscos, Rio Grande, RS, Brazil.
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Huang F, Ge L, Zhang B, Wang Y, Tian H, Zhao L, He Y, Zhang X. A fullerene colloidal suspension stimulates the growth and denitrification ability of wastewater treatment sludge-derived bacteria. CHEMOSPHERE 2014; 108:411-417. [PMID: 24630252 DOI: 10.1016/j.chemosphere.2014.02.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 01/30/2014] [Accepted: 02/03/2014] [Indexed: 06/03/2023]
Abstract
Fullerene (C60) is a nanoparticle that has been widely studied and applied in numerous commodities. However, there are concerns regarding its potential negative impact on the environment. A fullerene colloidal suspension (nC60) is known for its property of selectively inhibiting the growth of microorganisms. In this study, using denaturing gradient gel electrophoresis fingerprinting technology, we found that fullerene altered the structure of a sludge-derived microbial community. Specifically, the bacteria from Bacillus, Acidovorax and Cloacibacterium genera were enriched in abundance when supplemented with nC60 at pH 6.5 under aerobic conditions. The effects of the fullerene colloidal suspension on a strain of Bacillus isolated from the same microbial community were evaluated to further characterize the growth-stimulating effect of nC60. The biomass of cultures of this strain incubated with nC60 concentrations ranging from 3 mg L(-1) to 7 mg L(-1) was approximately twice that of the control during the stationary phase. The fullerene also induced higher superoxide dismutase activity in Bacillus cereus. Furthermore, the nitrate removal rate of B. cereus increased to nearly 55% in the presence of 5 mg L(-1) nC60, compared to 35% for the control. Meanwhile, the cumulative loading amount of nitrite was reduced from 33 μg mL(-1) to 25 μg mL(-1) by the addition of 5 mg L(-1) nC60. Our results demonstrate that the fullerene colloidal suspension is conditionally capable of promoting the growth and denitrification metabolism of certain bacteria, such as B. cereus. Fullerene might have both inhibitory and stimulatory effects on microorganisms in various environments.
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Affiliation(s)
- Fei Huang
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ling Ge
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bo Zhang
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Yun Wang
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hao Tian
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liping Zhao
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yiliang He
- School of Environmental Science & Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaojun Zhang
- State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
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Marques BF, Cordeiro LF, Kist LW, Bogo MR, López G, Pagano G, Muratt DT, de Carvalho LM, Külkamp-Guerreiro IC, Monserrat JM. Toxicological effects induced by the nanomaterials fullerene and nanosilver in the polychaeta Laeonereis acuta (Nereididae) and in the bacteria communities living at their surface. MARINE ENVIRONMENTAL RESEARCH 2013; 89:53-62. [PMID: 23743133 DOI: 10.1016/j.marenvres.2013.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 05/02/2013] [Accepted: 05/04/2013] [Indexed: 06/02/2023]
Abstract
Fullerene (nC60) and nanosilver (nAg) are nanomaterials with bactericide properties. The increments in their use raise questions about their potential environmental impacts, including estuarine ones. The polychaete Laeonereis acuta (Nereididae) secretes mucus that is colonized by bacteria communities. We analyzed the antioxidant and oxidative damage responses of anterior, middle and posterior region of L. acuta and bacteria communities after nC60 or nAg exposure during 24 h. Molecular analysis showed a prevalence of Vibrio genera in the communities. Bacteria biomass was lowered in worms exposed to 1.0 mg/L of nAg. nC60 reduced total antioxidant capacity of bacteria from worms exposed to 0.1 mg/L. Worms anterior region presented lower antioxidant capacity after exposure to 1.0 mg nC60/L, and the same was observed in the posterior region of worms exposed to 1.0 mg nAg/L. Lipid peroxidation was reduced in the anterior region of worms exposed to nC60 and the opposite was observed in the posterior region.
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Affiliation(s)
- Bianca Fell Marques
- Instituto de Ciências Biológicas (ICB), Universidade Federal do Rio Grande - FURG, Rio Grande, Brazil
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