Marine Microbial Response to Heavy Metals: Mechanism, Implications and Future Prospect

Fulke, Abhay B.; Kotian, Atul; Giripunje, Manisha D.

doi:10.1007/s00128-020-02923-9

Cited by 25 publications

(4 citation statements)

References 124 publications

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“…Moreover, organic forms of Hg are more toxic than inorganic and elemental Hg. Metal-protein complexes of metals such as Hg are intrinsically toxic and trace elements such as Zn also become toxic at high concentrations ( Neff, 1997 ; Nies, 1999 ; Seiler and Berendonk, 2012 ; Fulke et al., 2020 ). The high concentration of other metals such as Ni, Cu and Co has been strongly associated with their toxicity ( Richards et al., 2011 ).…”

Section: Anthropogenic Marine Ecosystems Pollution: An Approach To Th...mentioning

confidence: 99%

The High Risk of Bivalve Farming in Coastal Areas With Heavy Metal Pollution and Antibiotic-Resistant Bacteria: A Chilean Perspective

Pavón

Riquelme

Jaña

et al. 2022

Front. Cell. Infect. Microbiol.

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Anthropogenic pollution has a huge impact on the water quality of marine ecosystems. Heavy metals and antibiotics are anthropogenic stressors that have a major effect on the health of the marine organisms. Although heavy metals are also associate with volcanic eruptions, wind erosion or evaporation, most of them come from industrial and urban waste. Such contamination, coupled to the use and subsequent misuse of antimicrobials in aquatic environments, is an important stress factor capable of affecting the marine communities in the ecosystem. Bivalves are important ecological components of the oceanic environments and can bioaccumulate pollutants during their feeding through water filtration, acting as environmental sentinels. However, heavy metals and antibiotics pollution can affect several of their physiologic and immunological processes, including their microbiome. In fact, heavy metals and antibiotics have the potential to select resistance genes in bacteria, including those that are part of the microbiota of bivalves, such as Vibrio spp. Worryingly, antibiotic-resistant phenotypes have been shown to be more tolerant to heavy metals, and vice versa, which probably occurs through co- and cross-resistance pathways. In this regard, a crucial role of heavy metal resistance genes in the spread of mobile element-mediated antibiotic resistance has been suggested. Thus, it might be expected that antibiotic resistance of Vibrio spp. associated with bivalves would be higher in contaminated environments. In this review, we focused on co-occurrence of heavy metal and antibiotic resistance in Vibrio spp. In addition, we explore the Chilean situation with respect to the contaminants described above, focusing on the main bivalves-producing region for human consumption, considering bivalves as potential vehicles of antibiotic resistance genes to humans through the ingestion of contaminated seafood.

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Section: Anthropogenic Marine Ecosystems Pollution: An Approach To Th...mentioning

confidence: 99%

The High Risk of Bivalve Farming in Coastal Areas With Heavy Metal Pollution and Antibiotic-Resistant Bacteria: A Chilean Perspective

Pavón

Riquelme

Jaña

et al. 2022

Front. Cell. Infect. Microbiol.

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“…Phenolic compounds are common POPs and are not biodegradable, while 4-chlorophenol (4-CP) is a typical chlorophenol and is widely used in chlorination of organics or in the production of pharmaceuticals [18]. Heavy metals are cytotoxic to algae and persist in the environment, and Pb can form aerosols and be transported over long distances [19]. High concentrations of Pb have a general inhibitory effect on phytoplankton growth [20] and may impair renal, liver, reproductive and brain functions [21].…”

Section: Introductionmentioning

confidence: 99%

High Salinity Alters the Adsorption Behavior of Microplastics towards Typical Pollutants and the Phytotoxicity of Microplastics to Synechococcus

Liu,

Gu,

et al. 2024

Sustainability

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Microplastics (MPs) are ubiquitous in marine environments, and seawater desalination releases large amounts of concentrated saline water. However, little is known about how MPs alter their adsorption behavior towards other pollutants in high-salinity environments. Meanwhile, there is a lack of knowledge about the combined effect of MPs and high salinity on marine phytoplankton. In this work, the impact of high salinity on the adsorption behaviors of two types of MPs (polyethylene MPs (PE-MPs) and polyvinyl chloride MPs (PVC-MPs)) towards three typical water pollutants (Pb2+, 4-chlorophenol, and levofloxacin) was investigated, and the combined effect of MPs and high salinity on Synechococcus was evaluated. The adsorption of Pb2+ and levofloxacin by PE-MPs and PVC-MPs decreased at high salinity, and the adsorption of 4-chlorophenol by PE-MPs also decreased, however, the adsorption of 4-chlorophenol by PVC-MPs increased. The SOD, CAT activities and GSH content of Synechococcus exposed to MPs were increased by the increasing salinity. When the MPs concentration was low, the increase in salinity decreased the content of chlorophyll-a. Our results demonstrated that high salinity significantly changes the adsorption behavior of common pollutants onto MPs and alters the toxic effect of MPs on Synechococcus. This study provides important information necessary for environmental risk assessments with regard to the combined stress of MPs and high salinity, promoting the sustainable development of desalination industries.

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“…Bioremediation in sensu strictu involves microorganisms, such as fungi and bacteria [20,21]. Different species of microbes naturally colonise seawaters and can survive in marine environments tolerating high salt concentrations [22]. Several studies showed the bioremediation properties of fungi (mycoremediation) and bacteria for removal of organic and inorganic pollutants [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…Different species of microbes naturally colonise seawaters and can survive in marine environments tolerating high salt concentrations [22]. Several studies showed the bioremediation properties of fungi (mycoremediation) and bacteria for removal of organic and inorganic pollutants [22][23][24]. Fungi, exploiting enzymes, organic acids, and metabolites are able to biodegrade complex organic contaminants, but they can also bioaccumulate and immobilise PTEs [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Myco-Barriers as Sustainable Tool for Port Seawater Decontamination from Metals

Cecchi

Cutroneo

Piazza

et al. 2023

JMSE

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Several inputs of metal contamination can affect port seawater, such as industries and sludges. Despite the urge of developing new techniques to face this problem, most of the studies focus on traditional methods of remediation. Bioremediation by fungi represents an innovative and sustainable tool to efficiently remove metals from seawaters. The study’s aim is to develop a new green technology using fungi (myco-barriers) to maintain a good standard for water quality in port areas. A large commercial port (Port of Genoa) and a small marina (Port of Cavo) in Italy were chosen as pilot sites. Myco-barriers were realised by inoculating sterile straw and sawdust with mycelium of macro- and microfungi. After the incubation, myco-barriers were placed in the ports and sampled after 15 and 30 days to verify metal bioaccumulation. Myco-barriers with macrofungi showed the tendency to bioaccumulate more efficiently after 15 treatment days (Zn 7.0 mg kg−1, Cu 6.5 mg kg−1, Pb 1.2 mg kg−1), while myco-barriers with microfungi showed higher bioaccumulation after 30 days (Ni 0.6 mg kg−1, Pb 0.6 mg kg−1, Cu 5 mg kg−1). Results showed that myco-barriers have metal bioaccumulation potential and can represent a significant alternative to traditional techniques of remediation (chemical–physical).

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Marine Microbial Response to Heavy Metals: Mechanism, Implications and Future Prospect

Cited by 25 publications

References 124 publications

The High Risk of Bivalve Farming in Coastal Areas With Heavy Metal Pollution and Antibiotic-Resistant Bacteria: A Chilean Perspective

The High Risk of Bivalve Farming in Coastal Areas With Heavy Metal Pollution and Antibiotic-Resistant Bacteria: A Chilean Perspective

High Salinity Alters the Adsorption Behavior of Microplastics towards Typical Pollutants and the Phytotoxicity of Microplastics to Synechococcus

Myco-Barriers as Sustainable Tool for Port Seawater Decontamination from Metals

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