1
|
Liu Z, Zheng N, Liu J, Jia B, Wang X, Yao P, Zhang Y, Xia F, Guo X. Enhanced antifouling and antibacterial performances of novel UV-curable polysiloxane/microcapsules/Ag composite coatings for marine applications. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240090. [PMID: 39100143 PMCID: PMC11295885 DOI: 10.1098/rsos.240090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/27/2024] [Accepted: 04/10/2024] [Indexed: 08/06/2024]
Abstract
Marine biological fouling is a widespread phenomenon encountered by various oceanic ships and naval vessels, resulting in enormous economic losses. Herein, novel 4,5-dichloro-2-octyl-isothiazolone@sodium alginate/chitosan microcapsules (DCOIT@ALG/CS) were prepared through composite gel method using DCOIT as core materials, ALG and CS as shells, and CaCl2 as the cross-linking agent. The formed microcapsules (MCs) with Ag nanoparticles (AgNPs) were then filled in UV-curable polysiloxane (UV-PDMS), followed by UV irradiation to yield UV-PDMS/microcapsules/AgNPs (UV-PDMS/MCs/Ag) composite coatings. The constructed micro-nano dual-scale surface using the MCs and AgNPs improved the antifouling and antibacterial properties of UV-PDMS/MCs/Ag coatings. The as-obtained UV-PDMS/MCs/Ag coatings exhibited a static contact angle of about 160°, shear strength of 2.24 MPa, tensile strength of 3.32 MPa and elongation at break of 212%. The synergistic bacteriostatic effects of DCOIT and AgNPs in UV-PDMS/MCs/Ag coatings resulted in a bactericidal rate of 200 μg ml-1 towards Escherichia coli and Staphylococcus aureus with saturation at 100% within 10 min. In sum, the proposed composite coatings look promising for future marine transportation, pipeline networks and undersea facilities.
Collapse
Affiliation(s)
- Ze Liu
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Nan Zheng
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Jie Liu
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Bo Jia
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Xiaojun Wang
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Pan Yao
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Yayu Zhang
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Fu Xia
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| | - Xinyu Guo
- Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Sciences, Shaanxi University of Technology, Hanzhong, Shaanxi723001, People's Republic of China
| |
Collapse
|
2
|
Liu M, Li J, Li J, Zhou B, Lam PKS, Hu C, Chen L. Developmental cardiotoxicity of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) in marine medaka (Oryzias melastigma). JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133176. [PMID: 38070264 DOI: 10.1016/j.jhazmat.2023.133176] [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: 10/17/2023] [Revised: 11/15/2023] [Accepted: 12/02/2023] [Indexed: 02/08/2024]
Abstract
The application of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) as an antifouling biocide causes high toxicity to non-target marine organisms. To examine the developmental cardiotoxicity and mechanisms of DCOIT, we concurrently performed sub-chronic exposure and life-cycle exposure experiments using marine medaka embryos. After sub-chronic exposure to DCOIT at 1, 3, 10, and 33 μg/L, cardiac defects were caused by upregulation of cardiac gene transcriptions, decreasing heart size, and accelerating heartbeat. Hyperthyroidism in medaka larvae was identified as the cause of developmental cardiotoxicity of DCOIT sub-chronic exposure. In addition, parental life-cycle exposure to 1, 3, and 10 μg/L DCOIT led to transgenerational impairment of cardiogenesis in offspring medaka. A crossbreeding strategy discriminated a concentration-dependent mechanism of transgenerational cardiotoxicity. At 1 μg/L, the DCOIT-exposed female parent transferred a significantly higher amount of triiodothyronine (T3) hormone to offspring, corresponding to an accelerated heart rate. However, DCOIT at higher exposure concentrations modified the methylome imprinting in larval offspring, which was associated with cardiac dysfunction. Overall, the findings provide novel insights into the developmental cardiotoxicity of DCOIT. The high risks of DCOIT-even at environmentally realistic concentrations-raise concerns about its applicability as an antifoulant in a marine environment.
Collapse
Affiliation(s)
- Mengyuan Liu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiali Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bingsheng Zhou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Paul K S Lam
- Department of Science, School of Science and Technology, Hong Kong Metropolitan University, Kowloon, Hong Kong, China
| | - Chenyan Hu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430072, China
| | - Lianguo Chen
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| |
Collapse
|
3
|
Tang L, Li J, Hu C, Zhou B, Lam PKS, Chen L. Isothiazolinone dysregulates the pattern of miRNA secretion: Endocrine implications for neurogenesis. ENVIRONMENT INTERNATIONAL 2023; 181:108308. [PMID: 37939439 DOI: 10.1016/j.envint.2023.108308] [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: 08/30/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/10/2023]
Abstract
Isothiazolinones are extensively used as preservatives and disinfectants in personal care products and household items. The unintended exposure of humans and animals to isothiazolinones has led to increasing concerns about their health hazards. The compound 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), a representative isothiazolinone, can simultaneously induce endocrine disruption and neurotoxicity. However, the underlying mechanisms and linkages remain unclear. Our purpose was to elucidate the role of miRNAs as the signaling communicator during the crosstalk between endocrine and nervous systems in response to DCOIT stress. H295R cells were exposed to DCOIT, after which the alterations in intracellular miRNA composition, exosome secretory machinery, and extracellular miRNA composition were examined. Then, a PC12 cell line of neuronal differentiation potential was cultured with the extract of extracellular miRNAs from DCOIT-exposed H295R cell media to explore the functional implications in neurogenesis. The results showed that DCOIT exposure resulted in 349 differentially expressed miRNAs (DEMs) in H295R cells, which were closely related to the regulation of multiple endocrine pathways. In the media of H295R cells exposed to DCOIT, 66 DEMs were identified, showing distinct compositions compared to intracellular DEMs with only 2 common DEMs (e.g., novel-m0541-5p of inverse changes in the cell and medium). Functional annotation showed that extracellular DEMs were not only associated with sex endocrine synchronization, but were also implicated in nervous system development, morphogenesis, and tumor. Incubating PC12 cells with the extracellular exosomes (containing miRNAs) from DCOIT-exposed H295R cells significantly increased the neurite growth, promoted neuronal differentiation, and shaped the transcriptomic fingerprint, implying that miRNAs may communicate transduction of toxic information of DCOIT in endocrine system to neurons. Overall, the present findings provide novel insight into the endocrine disrupting and neural toxicity of DCOIT. The miRNAs have the potential to serve as the epigenetic mechanism of systems toxicology.
Collapse
Affiliation(s)
- Lizhu Tang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenyan Hu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430072, China
| | - Bingsheng Zhou
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Paul K S Lam
- Department of Science, School of Science and Technology, Hong Kong Metropolitan University, Kowloon, Hong Kong, China
| | - Lianguo Chen
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| |
Collapse
|
4
|
Almeida JC, Castro ÍB, Nunes BZ, Zanardi-Lamardo E. Antifouling booster biocides in Latin America and the Caribbean: A 20-year review. MARINE POLLUTION BULLETIN 2023; 189:114718. [PMID: 36807046 DOI: 10.1016/j.marpolbul.2023.114718] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 02/02/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
This review summarized booster biocides studies from Latin America and the Caribbean during the last two decades. Studies were focused on six countries, with most of them in Brazil. In water and sediment, diuron and Irgarol were the most abundant and frequent biocides, probably due to their former intense use. Antifouling paint particles were also reported and had mainly DCOIT, which is currently the most used booster biocide. Toxicity of individual booster biocides was tested in laboratory, and most effects were related to chlorothalonil, DCOIT, dichlofluanid, and Irgarol, including, but not limited to DNA damage, fertility decrease, and mortality at different trophic levels. This review highlighted the need for further studies on environmental occurrence of booster biocides in Latin America and Caribbean associated to ecotoxicological studies. Such information is essential to determine the potential ecological risks and to create directives regarding safe limits of booster biocides in aquatic systems.
Collapse
Affiliation(s)
- Júlia Cintra Almeida
- Departamento de Oceanografia, Universidade Federal de Pernambuco (UFPE), Av. Arquitetura s/n - Cid. Universitária, CEP: 50740-550 Recife, Brazil
| | - Ítalo Braga Castro
- Instituto do Mar, Universidade Federal de São Paulo (IMAR-UNIFESP), Av. Almirante Saldanha da Gama, CEP: 11030-400 Santos, SP, Brazil; PPG em Oceanologia, Universidade Federal do Rio Grande (IO-FURG), Av. Itália s/n, Campus Carreiros, CEP: 96203-900, Rio Grande, RS, Brazil
| | - Beatriz Zachello Nunes
- PPG em Oceanologia, Universidade Federal do Rio Grande (IO-FURG), Av. Itália s/n, Campus Carreiros, CEP: 96203-900, Rio Grande, RS, Brazil
| | - Eliete Zanardi-Lamardo
- Departamento de Oceanografia, Universidade Federal de Pernambuco (UFPE), Av. Arquitetura s/n - Cid. Universitária, CEP: 50740-550 Recife, Brazil.
| |
Collapse
|
5
|
Raza MH, Jabeen F, Ikram S, Zafar S. Characterization and implication of microplastics on riverine population of the River Ravi, Lahore, Pakistan. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:6828-6848. [PMID: 36008586 DOI: 10.1007/s11356-022-22440-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Microplastic (MP) pollution in the aquatic environment is an emerging subject worldwide. So far, very few investigations have been reported on the riverine fish population. This study investigated the implications of microplastics for three freshwater fish species (Labeo rohita, Cirrihinus mrigala, and Sperata seenghala) as bioindicators of this pollution. Raman spectroscopy was used to confirm MP polymer type and their distribution in water, sediments, and in different organs (gut, gills, liver, and muscles) of Labeo rohita, Cirrihinus mrigala, and Sperata seenghala collected from River Ravi at two sites (site I, Dhand Nano Dogar and site II, Jhamra). These selected sites were situated predominantly near agricultural lands and received polluted water from nearby sewerage and industries that represented potential sources of microplastic pollution. Histological analysis was combined with Raman spectroscopy to assess the effects of MPs on fish organs. MPs were identified in water and sediment samples with an average load (per 0.5 L or per 0.5 kg) of 33 items and 64 items for water and sediments at site I and 27 items and 19 items at site II, respectively. Of total MPs identified, 56.9% were found in bottom feeder C. mrigala, 37.91% in column feeder L. rohita, and 5.21% in S. seenghala at site I while at site II 60% were found in C. mrigala, 29% in L. rohita and 10.34% in S. seenghala. This was linked with more plastic accumulation in sediments from the nearby residential sewerage and industrial effluent flow. In this study, the identified MPs polymers were in the order of polyvinyl chloride (PVC) > polystyrene (PS) > propylene (PP) > polyethylene (PE). Among plastic shapes, fiber (58%) was the dominant plastic in water followed by fragment (21%), sheet (12%), and cube (9%). In sediment, the fragment was the common plastic shape with 51% followed by fiber (28%), sheet (19%), and cube (2%). Fragments (62.9%) in water and fibers (68.4%) in sediments were abundant at site 2. Microplastic mean occurrence in organs was in the order of gut > gills > muscles > liver at both sites. Significant histological alterations were observed in all three species including intestinal edema, hyperplasia, hepatocyte infiltration, accumulation of lipid droplets in the liver, lamellar fusion and breakage in gills, and muscle fiber necrosis. This study showed MP occurrence in the selected freshwater fishes, so further research is needed to assess plastic pollution in the riverine fish population of Pakistan. This study appeared to be the first in the selected area, as no significant information regarding plastic pollution in that riverine system was found when this study was conducted.
Collapse
Affiliation(s)
- Muhammad Haris Raza
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Farhat Jabeen
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan.
| | - Salma Ikram
- Department of Physics, Government College University Faisalabad, Faisalabad, Pakistan
| | - Saba Zafar
- Department of Zoology, Government College University Faisalabad, Faisalabad, Pakistan
| |
Collapse
|
6
|
Antifouling coatings can reduce algal growth while preserving coral settlement. Sci Rep 2022; 12:15935. [PMID: 36153418 PMCID: PMC9509345 DOI: 10.1038/s41598-022-19997-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 09/07/2022] [Indexed: 11/08/2022] Open
Abstract
In the early stages after larval settlement, coral spat can be rapidly overgrown and outcompeted by algae, reducing overall survival for coral reef replenishment and supply for restoration programs. Here we investigated three antifouling (AF) coatings for their ability to inhibit algal fouling on coral settlement plugs, a commonly-used restoration substrate. Plugs were either fully or partially coated with the AF coatings and incubated in mesocosm systems with partial recirculation for 37 days to track fouling succession. In addition, settlement of Acropora tenuis larvae was measured to determine whether AF coatings were a settlement deterrent. Uncoated control plugs became heavily fouled, yielding only 4–8% bare substrate on upper surfaces after 37 days. During this period, an encapsulated dichlorooctylisothiazolinone (DCOIT)-coating was most effective in reducing fouling, yielding 61–63% bare substrate. Antiadhesive and cerium dioxide (CeO2−x) nanoparticle (NP) coatings were less effective, yielding 11–17% and 2% bare substrate, respectively. Average settlement of A. tenuis larvae on the three types of AF-coated plugs did not statistically differ from settlement on uncoated controls. However, settlement on the NP-coating was generally the highest and was significantly higher than settlement found on the antiadhesive- and DCOIT-coating. Furthermore, on plugs only partially-covered with AF coatings, larval settlement on coated NP- areas was significantly higher than settlement on coated antiadhesive- and DCOIT-areas. These results demonstrate that AF coatings can reduce fouling intensity on biologically-relevant timescales while preserving robust levels of coral settlement. This represents an important step towards reducing fine-scale competition with benthic fouling organisms in coral breeding and propagation.
Collapse
|
7
|
Chen T, Li S, Liang Z, Li L, Guo H. Effects of copper pyrithione (CuPT) on apoptosis, ROS production, and gene expression in hemocytes of white shrimp Litopenaeus vannamei. Comp Biochem Physiol C Toxicol Pharmacol 2022; 256:109323. [PMID: 35247531 DOI: 10.1016/j.cbpc.2022.109323] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 02/01/2022] [Accepted: 02/27/2022] [Indexed: 11/03/2022]
Abstract
Copper pyrithione (CuPT) is used globally to prevent biofouling. However, it poses certain risks to aquatic ecosystems. To understand the effects of CuPT on Litopenaeus vannamei after exposure to different concentrations of CuPT (0, 64, and 128 μg/L), the apoptotic cell ratio, production of reactive oxygen species (ROS), and gene expression in the hemocytes were studied at 0, 3, 12, 24, and 48 h. The results revealed that ROS production was induced significantly at 3-48 h only in the 128 μg/L groups. The apoptotic cell ratio was increased significantly at 12 and 24 h in the 64 μg/L groups, and at 3-48 h in the 128 μg/L groups. Meanwhile, CuPT exposure changed gene expression in hemocytes at different levels. In the 64 μg/L groups, the expression of Mn-superoxide dismutase (MnSOD) was induced at 12 h, glutathione peroxidase (GPx) was induced at 24 and 48 h, caspase-3 induced at 24 h, metallothionein (MT) and HSP70 were increased at 3 h. In the 128 μg/L groups, MnSOD was increased at 3 h and then decreased at 12-48 h, GPx was up-regulated at 3, 24 h and then decreased at 48 h, caspase-3 was increased at 24 h, MT was increased at 3-48 h, HSP60 and HSP70 were up-regulated at 3-12 h. These results indicated that CuPT induced ROS production and the expression of caspase-3 in hemocytes, then caused hemocyte apoptosis. Expression levels of MnSOD, GPx, MT, HSP60, and HSP70 were up-regulated to protect the hemocyte against CuPT stress.
Collapse
Affiliation(s)
- Tianci Chen
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, People's Republic of China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals & Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes, Zhanjiang, People's Republic of China
| | - Shuhong Li
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, People's Republic of China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals & Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes, Zhanjiang, People's Republic of China
| | - Zhi Liang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, People's Republic of China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals & Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes, Zhanjiang, People's Republic of China
| | - Ling Li
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, People's Republic of China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals & Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes, Zhanjiang, People's Republic of China
| | - Hui Guo
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, People's Republic of China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals & Key Laboratory of Control for Diseases of Aquatic Economic Animals of Guangdong Higher Education Institutes, Zhanjiang, People's Republic of China.
| |
Collapse
|
8
|
Chen CZ, Li P, Liu L, Li ZH. Transcriptomic and proteomic analysis of Chinese rare minnow (Gobiocypris rarus) larvae in response to acute waterborne cadmium or mercury stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 246:106134. [PMID: 35286993 DOI: 10.1016/j.aquatox.2022.106134] [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] [Received: 02/15/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
In this study, Chinese rare minnow (Gobiocypris rarus) larvae were exposed to the control group, Cd concentrations (0.5 and 2.5 mg/L), and Hg concentrations (0.1 and 0.3 mg/L) for 96 h. Transcriptome analysis showed that 816 and 1599 significantly differentially expressed genes (DEGs) were identified in response to 2.5 mg/L Cd2+ and 0.3 mg/L Hg2+, respectively. Functional enrichment analysis revealed that DEGs were mostly associated with immune responses after Cd exposure, such as antigen processing and presentation, phagosome, apoptosis, and lysosome. Similarly, functional enrichment analysis showed that many pathways were mostly involved in metabolism after Hg exposure, such as glutathione metabolism and starch and sucrose metabolism. Results of two-dimensional electrophoresis (2-DE) showed that the abundance of 10 protein spots was significantly altered in the Cd2+ treatments. The proteomic analysis demonstrated that Cd toxicity might impair cytoskeletal and cell motility-related protein activity in the liver of G. rarus. Similarly, the abundance of 24 protein spots was significantly altered in the Hg2+ treatments. Hg toxicity regulates the expression of proteins belonging to several functional categories, including cytoskeleton, oxidative stress, digestive system, and energy metabolism. This study provides valuable relevant insight into the molecular mechanisms in response to Cd or Hg toxicity in aquatic organisms and will help screen for potential biomarkers to respond to Cd and Hg pollutants.
Collapse
Affiliation(s)
| | - Ping Li
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Ling Liu
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Zhi-Hua Li
- Marine College, Shandong University, Weihai, Shandong 264209, China.
| |
Collapse
|
9
|
Campos BGD, Fontes MK, Gusso-Choueri PK, Marinsek GP, Nobre CR, Moreno BB, Abreu FEL, Fillmann G, de Britto Mari R, Abessa DMDS. A preliminary study on multi-level biomarkers response of the tropical oyster Crassostrea brasiliana to exposure to the antifouling biocide DCOIT. MARINE POLLUTION BULLETIN 2022; 174:113241. [PMID: 34923405 DOI: 10.1016/j.marpolbul.2021.113241] [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: 04/22/2021] [Revised: 10/29/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
This study investigated the sublethal effects of environmentally relevant concentrations of DCOIT on the neotropical oyster Crassostrea brasiliana. Gills and digestive glands of animals exposed to increasing concentrations of DCOIT were analyzed for biochemical, cellular, and histopathological responses. Exposure to DCOIT (0.2 to 151 μg L-1) for 120 h triggered oxidative stress in both tissues (through the modulation of GPX, GST, GSH and GR), which led to damage of membrane lipids (increase of LPO and reduction of the NRRT). DCOIT increased histopathological pathologies in gills, such as necrosis, lymphocyte infiltration and epithelial desquamation. This study showed that short term exposure to environmental concentrations of DCOIT causes negative effects on C. brasiliana at biochemical, physiological, and histological levels. Therefore, the use of DCOIT as a booster biocide in antifouling paints should be further assessed, as it may cause environmental hazards to marine organisms.
Collapse
Affiliation(s)
- Bruno Galvão de Campos
- Bioscience Institute, São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil.
| | - Mayana Karoline Fontes
- Bioscience Institute, São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | | | - Gabriela Pustiglione Marinsek
- Bioscience Institute, São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil; Institute for Advanced Studies of Ocean, São Paulo State University (UNESP), Av. João Francisco Bensdorp, 1178, 11350-011 São Vicente, SP, Brazil
| | - Caio Rodrigues Nobre
- Bioscience Institute, São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | - Beatriz Barbosa Moreno
- Instituto do Mar, Universidade Federal de São Paulo (UNIFESP), Rua Maria Máximo, 168, 11030-100 Santos, SP, Brazil
| | - Fiamma Eugenia Lemos Abreu
- Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Av. Itália s/n, km 8, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil
| | - Gilberto Fillmann
- Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Av. Itália s/n, km 8, Campus Carreiros, 96203-900 Rio Grande, RS, Brazil
| | - Renata de Britto Mari
- Bioscience Institute, São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| | - Denis Moledo de Souza Abessa
- Bioscience Institute, São Paulo State University (UNESP), Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil
| |
Collapse
|
10
|
Jesus ÉPSD, Figueirêdo LPD, Maia F, Martins R, Nilin J. Acute and chronic effects of innovative antifouling nanostructured biocides on a tropical marine microcrustacean. MARINE POLLUTION BULLETIN 2021; 164:111970. [PMID: 33517086 DOI: 10.1016/j.marpolbul.2021.111970] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
This study aimed to investigate the toxicity of innovative antifouling nanostructured biocides DCOIT and silver associated to silica nanocapsules (SiNC) on the tropical microcrustacean Mysidopsis juniae. The toxicity of the tested compounds can be summarized as follows (acute tests): DCOIT > SiNC-Ag > SiNC-DCOIT > SiNC-DCOIT-Ag > SiNC > Ag; (chronic tests): SiNC-Ag > SiNC-DCOIT-Ag > DCOIT > Ag > SiNC, although it was not possible to determine the chronic toxicity of SiNC-DCOIT. In general, our data demonstrated that mysids were more sensitive than most temperate species, and it was possible to conclude that the combination SiNC-DCOIT-Ag showed less acute toxicity in comparison to the isolated active compounds, reinforcing data obtained for species from temperate environments on the potential use of nanomaterial to reduce toxicity to non-target species. However, despite representing less risk to the environment, the compound SiNC-DCOIT-Ag is still very toxic to the non-target tropical mysid.
Collapse
Affiliation(s)
- Édipo Paixão Silva de Jesus
- Graduate Program in Ecology and Conservation, Federal University of Sergipe, Av. Marechal Rodon s/n, 49100-000, São Cristóvão, Sergipe, Brazil
| | - Lívia Pitombeira de Figueirêdo
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, 13.560-970 São Carlos, Brazil
| | - Frederico Maia
- Smallmatek - Small Materials and Technologies, Lda., Rua Canhas, 3810-075 Aveiro, Portugal
| | - Roberto Martins
- CESAM - Centre of Environmental and Marine Studies and Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Jeamylle Nilin
- Biology Institute, Federal University of Uberlândia, R. Ceará s/n Bloco 2D sala 28, 38405-302, Uberlândia, Minas Gerais, Brazil.
| |
Collapse
|
11
|
Gabe HB, Guerreiro ADS, Sandrini JZ. Molecular and biochemical effects of the antifouling DCOIT in the mussel Perna perna. Comp Biochem Physiol C Toxicol Pharmacol 2021; 239:108870. [PMID: 32814145 DOI: 10.1016/j.cbpc.2020.108870] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 07/28/2020] [Accepted: 08/09/2020] [Indexed: 12/31/2022]
Abstract
Biological fouling is an unwanted phenomenon that results in economic losses to the shipping industry. To prevent fouling, antifouling paints are used. DCOIT (4,5- dichloro-2-n-octyl-4-isothiazolin-3-one) is a biocide present in many antifouling paint formulations, and is toxic to a wide range of organisms. The aim of the present study was to evaluate the effects of DCOIT on oxidative stress indicators of the brown mussel, Perna perna. Molecular (SOD-like, GSTO-like and MGST-like mRNA levels) and biochemical (activities of superoxide dismutase (SOD), catalase (CAT) and glutathione S-transferase (GST), and levels of glutathione (GSH), reactive oxygen species (ROS) and protein carbonyls (PCO)) components were evaluated. Further, levels of biomarkers were assessed in the gills and digestive glands of mussels. Bivalves were exposed to DCOIT (control, 0.1 μg/L and 10 μg/L) for up to 96 h. DCOIT exposure decreased GSH content in gills. Moreover, exposure to DCOIT also decreased CAT activity in the gills and digestive glands of mussels. GST activity increased in digestive gland after exposure for 24 h to both concentrations of DCOIT tested. SOD activity, ROS levels and PCO content were not affected by exposure to the contaminant. Regarding the molecular biomarkers evaluated, DCOIT exposure altered mRNA levels of SOD-like in both tissues after 24 and 96 h of exposure, and decreased MGST-like mRNA levels in the digestive gland after 96 h of exposure to the chemical. These findings suggested that exposure to DCOIT may alter the biochemical and molecular functioning of P. perna, which may harm the species.
Collapse
Affiliation(s)
- Heloísa Bárbara Gabe
- Programa de Pós-Graduação em Ciências Fisiológicas. Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, 96203-900 Rio Grande, RS, Brazil
| | - Amanda da Silveira Guerreiro
- Programa de Pós-Graduação em Ciências Fisiológicas. Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, 96203-900 Rio Grande, RS, Brazil
| | - Juliana Zomer Sandrini
- Programa de Pós-Graduação em Ciências Fisiológicas. Instituto de Ciências Biológicas, ICB. Universidade Federal do Rio Grande - FURG, 96203-900 Rio Grande, RS, Brazil.
| |
Collapse
|