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Ye M, Fang S, Yu Q, Chen J, Li P, Zhang C, Ge Y. Copper and zinc interact significantly in their joint toxicity to Chlamydomonas reinhardtii: Insights from physiological and transcriptomic investigations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167122. [PMID: 37717753 DOI: 10.1016/j.scitotenv.2023.167122] [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: 07/04/2023] [Revised: 08/31/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Copper (Cu) and zinc (Zn) often discharge simultaneously from industrial and agricultural sectors and cause stress to aquatic biota. Although microalgae have been extensively investigated for their responses to Cu or Zn exposure, how they cope with the mixtures of two metals, especially at transcriptomic level, remains largely unknown. In this study, Chlamydomonas reinhardtii was exposed to environmentally relevant concentrations of two metals. It was found that Zn promoted the entry of Cu into the algal cells. With the increase of combined toxicity, extracellular polymeric substances (EPS) and cell wall functional groups immobilized significant amounts of Cu and Zn. Furthermore, C. reinhardtii adjusted resistance strategies internally, including starch consumption and synthesis of chlorophyll and lipids. Upon high level of Cu and Zn coexistence, synergistic effects were observed in lipid peroxidation and catalase (CAT) activity. Under 1.05 mg/L Cu + 0.87 mg/L Zn, 256 differentially expressed genes (DEGs) were mainly involved in oxidative phosphorylation, ribosome, nitrogen metabolism; while 4294 DEGs induced by 4.21 mg/L Cu + 3.48 mg/L Zn were mainly related to photosynthesis, citric acid cycle, etc. Together, this study revealed a more comprehensive understanding of mechanisms of Cu/Zn detoxification in C. reinhardtii, emphasizing critical roles of photosynthetic carbon sequestration and energy metabolism in the metal resistance.
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Affiliation(s)
- Menglei Ye
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Shu Fang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingnan Yu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiale Chen
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Peihuan Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chunhua Zhang
- Laboratory Centre of Life Science, College of Life Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Ying Ge
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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Khanam MRM, Shimasaki Y, Hosain MZ, Chairil AE, Mukai K, Wang P, Tsuyama M, Qiu X, Oshima Y. Effects of the antifouling agent tributyltin on the sinking behavior, photosynthetic rate and biochemical composition of the marine planktonic diatom Thalassiosira pseudonana. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:1158-1168. [PMID: 36006497 DOI: 10.1007/s10646-022-02577-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
This study investigated the changes in the sinking rates and physiochemical characteristics of the planktonic marine diatom, Thalassiosira pseudonana, caused by 72 h exposure to antifouling agent tributyltin (TBT) at 1.0 µg L-1 (72-h 10% effective concentration for growth rate, EC10), and 1.7 µg L-1 (EC50). After 72 h of exposure, the sinking rates of T. pseudonana cells were changed from 0.13-0.08 m day-1 in the control, 0.08-0.05 m day-1 in the EC10 treatment, and 0.04-0.006 m day-1 in the EC50 treatment. The results revealed that the sinking rate of T. pseudonana decreased significantly compared with the control at 48 h in the EC10 treatment group and at 24, 48, and 72 h in the EC50 treatment group. The photosynthetic performance index on an absorption basis and the maximum quantum yields of photosystem II also decreased significantly (P < 0.05) in the TBT treatments compared with the control. There was a significant (P < 0.05) positive correlation between sinking rates and cellular protein contents (ng cell-1). Changes in the biochemical and physiochemical composition of the cells suggest that interference with photosynthetic processes by TBT may have reduced their specific gravity and thereby caused a decrease in the sinking rates of T. pseudonana. The results of this investigation suggest the importance of considering the effects of pollutants on the sinking behaviors of diatoms when evaluating the adverse effects of pollutants on marine primary production.
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Affiliation(s)
| | - Yohei Shimasaki
- Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Md Zahangir Hosain
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Abrianna Elke Chairil
- Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Koki Mukai
- Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Pengcheng Wang
- Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Michito Tsuyama
- Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Xuchun Qiu
- Institute of Environmental Health and Ecological Security, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, PR China
| | - Yuji Oshima
- Faculty of Agriculture, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
- Institute of Nature and Environmental Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
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Horie Y, Takahashi C. Development of an in vivo acute bioassay using the marine medaka Oryzias melastigma. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:725. [PMID: 34651255 DOI: 10.1007/s10661-021-09527-8] [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] [Received: 06/02/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
To determine whether the marine medaka Oryzias melastigma is a suitable model organism for in vivo acute toxicity bioassay in seawater, we first determined whether there were differences in the concentrations of chemicals that were toxic to marine medaka (O. melastigma) and freshwater medaka (O. latipes). We performed in vivo acute toxicity bioassay with 3-chloroaniline, triclosan, 3,4-dichloroaniline, fenitrothion, and pyriproxyfen on larvae of both species. Although the concentrations of 3-chloroaniline and fenitrothion that were lethal to the larvae were identical for both species, the toxic concentrations of triclosan, 3,4-dichloroaniline, and pyriproxyfen were lower for O. melastigma than for O. latipes. We then used an in vivo acute toxicity bioassay to monitor the quality of coastal seawater in Akita, Japan. No lethal effects were observed in the harbor and canal in 2019. O. melastigma could be used to monitor the quality of seawater with salinities in the range 2-25. Our findings suggest that O. melastigma can be used as the test fish for in vivo acute toxicity bioassay intended for water quality monitoring.
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Affiliation(s)
- Yoshifumi Horie
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita, 010-0195, Japan.
- Research Center for Inland Sea (KURCIS), Kobe University, Fukae Minami Kobe, Hyogo, 658-0022, Higashinada, Japan.
| | - Chiho Takahashi
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Nakano Shimoshinjo, Akita, 010-0195, Japan
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Zhang S, Li P, Li ZH. Toxicity of organotin compounds and the ecological risk of organic tin with co-existing contaminants in aquatic organisms. Comp Biochem Physiol C Toxicol Pharmacol 2021; 246:109054. [PMID: 33887478 DOI: 10.1016/j.cbpc.2021.109054] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/06/2021] [Accepted: 04/11/2021] [Indexed: 02/07/2023]
Abstract
Although organotin (OT) use is restricted worldwide, with the development of industry and agriculture, a large amount of OT is still discharged into aquatic environments. These OTs may interact with other pollutants that cause adverse biological effects (through bioaccumulation and/or toxicity), resulting in combined toxicity. Most research on OTs have focused on the exposure of a single analyte. Information on the toxicity of OTs and coexisting pollutants is quite limited, but is developing rapidly. This is the first review paper evaluating the current state of knowledge on the combined effects of OTs with co-pollutants. This paper reviews 1) the degradation of organotin; and 2) the combined toxicity of OTs and emerging pollutants (EP), heavy metals, and organic pollutants. Future research needs are discussed to better understand the risks associated with co-exposure to OT pollutants.
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Affiliation(s)
- Siqi Zhang
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Ping Li
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Zhi-Hua Li
- Marine College, Shandong University, Weihai, Shandong 264209, China.
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Li Z, Yi X, Zhou H, Chi T, Li W, Yang K. Combined effect of polystyrene microplastics and dibutyl phthalate on the microalgae Chlorella pyrenoidosa. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113604. [PMID: 31761578 DOI: 10.1016/j.envpol.2019.113604] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 05/21/2023]
Abstract
The combined effect of polystyrene microplastics (mPS) and dibutyl phthalate (DBP), a common plastic additive, on the microalgae Chlorella pyrenoidosa was investigated in the present study. The 96 h-IC50 value of DBP was 2.41 mg L-1. Polystyrene microplastics exhibited size-dependent inhibitory effect to C. pyrenoidosa, with the 96 h-IC50 at 6.90 and 7.19 mg L-1 for 0.1 and 0.55 μm mPS respectively, but little toxicity was observed for 5 μm mPS. The interaction parameter ρ based on the response additive response surface (RARS) model varied from -0.309 to 5.845, indicating the interaction pattern varying with exposure concentrations of chemical mixtures. A modified RARS model (taking ρ as a function of exposure concentration) was constructed and could well predict the combined toxicity of mPS and DBP. More than 20% reduction of DBP was observed at 20 mg L-1 mPS, while 1 mg L-1 mPS had no significant effect on the bioavailability of DBP at different sampling time points. Volume, morphological complexity and chlorophyll fluorescence intensity of microalgal cells were disturbed by both DBP and mPS. The antagonistic effect of high concentrations of mPS might be partially attributed to the combination of hetero- and homo-aggregation and the reduced bioavailability of DBP. The overall findings of the present study profiled the combined toxic effects of mPS and DBP on marine phytoplankton species which will be helpful for further evaluation of ecological risks of mPS and DBP in marine environment.
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Affiliation(s)
- Zhaochuan Li
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Xianliang Yi
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China.
| | - Hao Zhou
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Tongtong Chi
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Wentao Li
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Kaiming Yang
- School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
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Molecular Recognition and Cell Surface Biochemical Response of Bacillus thuringiensis on Triphenyltin. Processes (Basel) 2019. [DOI: 10.3390/pr7060358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Triphenyltin (TPT) has severely polluted the environment, and it often coexists with metal ions, such as Cu2+. This paper describes the cell’s molecular recognition of TPT, the interaction between TPT recognition and Cu2+ biosorption, and their effect on cell permeability. We studied the recognition of TPT by Bacillus thuringiensis cells and the effect of TPT recognition on Cu2+ biosorption by using atomic force microscopy to observe changes in cell surface mechanical properties and cellular morphology and by using flow cytometry to determine the cell growth status and cell permeability. The results show that B. thuringiensis can quickly recognize different media. The adhesion force of cells in contact with Tween 80 was significantly reduced to levels that were much lower than that of cells in contact with PBS. Conversely, the cell surface adhesion force increased as TPT became more degraded. B. thuringiensis cells maintained their original morphology after 48 h of TPT treatment. The amount of Cu2+ adsorption by TPT-treated cells was positively correlated with the surface adhesion force (r = 0.966, P = 0.01). The cell adhesion force significantly decreased after Cu2+ adsorption, and cell recognition of TPT and/or Cu2+ hindered the entrance of 2’,7’-dichlorodihydrofluorescein diacetate (DCFH-DA) into the cell. The initial diffusion time of DCFH-DA into cells treated by PBS, Cu2+, TPT, and TPT+Cu2+ was 4, 10, 30, and 30 min, respectively, and the order of the fluorescence intensity was PBS >> Cu2+ > TPT > TPT+Cu2+. We conclude that changes in the cell surface properties of the microbe during recognition of pollutants depend on the contaminant’s properties. B. thuringiensis recognized TPT and secreted intracellular substances that not only enhanced the adsorption of Cu2+, but also formed a “barrier” on the cell surface that reduced permeability. These findings provide a novel insight into the mechanism of microbial removal of pollutants.
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Yi X, Zhang K, Han G, Yu M, Chi T, Jing S, Li Z, Zhan J, Wu M. Toxic effect of triphenyltin in the presence of nano zinc oxide to marine copepod Tigriopus japonicus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:687-692. [PMID: 30232019 DOI: 10.1016/j.envpol.2018.09.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/11/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
Marine organisms are naturally exposed to different environmental pollutants including organic pollutants and nanoparticles. The interactive effects between nanoparticles and other chemicals on aquatic organisms have raised concerns regarding the potential of nanomaterials as the vector for other chemicals. In the present study, the effect of nano zinc oxide (nZnO) on the bioavailability of triphenyltin chloride (TPTCl) was studied, and their combined acute and reproductive toxicity to the marine copepod Tigriopus japonicus were evaluated. At experimental concentration ranges of nZnO in this study, the percentage of dissolution of Zn2+ was relative stable (from 62% to 66%), and nZnO did not affect the bioavailability of TPTCl to the copepods. The acute toxicity of binary mixtures of nZnO/TPT was equivalent to that of the mixture of Zn2+/TPT. In agreement with the decrease in TPTCl's LC50 values at the presence of nZnO, their interacting effect was synergistic based on response addition response surface model, and the interacting parameter was modelled to be -1.43. In addition to acute toxicity test, reproductive toxicity tests revealed that exposure to nZnO and TPTCl didn't affect the successful mating rate and the number of nauplii in the 1st brood, but they extended the time for the eggs to hatch from 2.53 days to 3.94 and 3.64 days, respectively. The exposure to nZnO/TPTCl mixture delayed the time to hatch to 5.78 days.
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Affiliation(s)
- Xianliang Yi
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Keke Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Gaorui Han
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Mingyue Yu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Tongtong Chi
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Siyuan Jing
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Zhaochuan Li
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Jingjing Zhan
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China
| | - Minghuo Wu
- Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Food and Environment, Dalian University of Technology, Panjin 124221, China.
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