Bioaccumulation of potentially toxic elements by submerged plants and biofilms: A critical review

Geng, Ningbo; Wu, Yichao; Zhang, Ming; Tsang, Daniel C.W.; Rinklebe, Jörg; Xia, Yinfeng; Lu, Debao; Zhu, Lusheng; Palansooriya, Kumuduni Niroshika; Kim, Ki‐Hyun; Ok, Yong Sik

doi:10.1016/j.envint.2019.105015

Cited by 85 publications

(32 citation statements)

References 146 publications

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“…Heavy metals are non-degradable, persistent in the environment, show a high dispersal capacity by water, and a considerable bioaccumulation rate in plants (Geng et al, 2019 ; Ogunkunle et al, 2020 ), fish (Vieira et al, 2020 ), other animals, and humans (Shokr et al, 2016 ). Given the proper conditions, they can accumulate to levels that are toxic (Brevik et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly remediation technologies for wastewater contaminated with heavy metals with special focus on using water hyacinth and black tea wastes: a review

Elbasiouny

Darwesh

Elbeltagy

et al. 2021

Environ Monit Assess

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Treatment of water contaminated with heavy metals is challenging. Heavy metals are non-degradable, persistent in the environment, have a high dispersion capacity by water, can bioaccumulate, and represent risks to human and environmental health. Conventional treatment methods have disadvantages; however, adsorption in biomass is a highly promising method with high efficiency and low cost that avoids many of the disadvantages of conventional methods. Black tea (BT) wastes and water hyacinth (WH) have attracted attention for their ability to remove heavy metals from wastewater. Utilizing these approaches can remove contaminants and effectively manage problematic invasive species and wastes. The conventional uses of BT and WH were efficient for removing heavy metals from wastewater. Due to the unique and distinct properties and advantages of biochar and nano-forms of biosorbents, the use of BT and WH in these forms is promising to achieve sustainable heavy metals removal from wastewater. However, more study is needed to confirm preliminary results.

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Section: Introductionmentioning

confidence: 99%

Ecofriendly remediation technologies for wastewater contaminated with heavy metals with special focus on using water hyacinth and black tea wastes: a review

Elbasiouny

Darwesh

Elbeltagy

et al. 2021

Environ Monit Assess

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“…Bacteria in biofilm may uptake ECs from water. ECs may also be adsorbed in the bacterial surface by binding to specific sites, before being internalized [51][52][53] . Bacteria in biofilms may also produce siderophores and citrates that can complex with or solubilize some toxic metals 53 .…”

Section: Microbial Ecotoxicology Of Ecsmentioning

confidence: 99%

“…ECs may also be adsorbed in the bacterial surface by binding to specific sites, before being internalized [51][52][53] . Bacteria in biofilms may also produce siderophores and citrates that can complex with or solubilize some toxic metals 53 . The secretion of outer membrane vesicles from biofilm cells has also an important role in trapping some contaminants, such as antibiotics 54 .…”

Section: Microbial Ecotoxicology Of Ecsmentioning

confidence: 99%

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Emerging contaminants affect the microbiome of water systems—strategies for their mitigation

et al. 2020

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The presence of emerging contaminants (ECs) in the environment has been consistently recognized as a worldwide concern. ECs may be defined as chemicals or materials found in the environment at trace concentrations with potential, perceived, or real risk to the “One Health” trilogy (environment, human, and animal health). The main concern regarding pharmaceuticals and in particular antibiotics is the widespread dissemination of antimicrobial resistance. Nevertheless, non-antimicrobials also interact with microorganisms in both bulk phase and in biofilms. In fact, drugs not developed for antimicrobial chemotherapy can exert an antimicrobial action and, therefore, a selective pressure on microorganisms. This review aims to provide answers to questions typically ignored in epidemiological and environmental monitoring studies with a focus on water systems, particularly drinking water (DW): Do ECs exposure changes the behavior of environmental microorganisms? May non-antibiotic ECs affect tolerance to antimicrobials? Do ECs interfere with biofilm function? Are ECs-induced changes in microbial behavior of public health concern? Nowadays, the answers to these questions are still very limited. However, this study demonstrates that some ECs have significant effects in microbial behavior. The most studied ECs are pharmaceuticals, particularly antibiotics, carbamazepine and diclofenac. The pressure caused by antibiotic and other antimicrobial agents on the acquisition and spread of antibiotic resistance seems to be unquestionable. However, regarding the effects of ECs on the development and behavior of biofilms, the conclusions of different studies are still controversial. The dissimilar findings propose that standardized tests are needed for an accurate assessment on the effects of ECs in the microbiome of water systems. The variability of experimental conditions, combined with the presence of mixtures of ECs as well as the lack of information about the effects of non-pharmaceutical ECs constitute the main challenge to be overcome in order to improve ECs prioritization.

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“…We assumed that if the discharge of Cr-rich effluents appeared systematically, the concentration of Cr in the solution increased, which could favor Cr extraction by plants. We were also aware that Cr can change its oxidation state and thus its bioavailability according to mutual interactions, e.g., with microorganisms (Geng et al 2019). The specific aims of this work were as follows: (1) to transplant C. cophocarpa into degraded and Cr-polluted aquatic environment, (2) to evaluate macrophyte acclimatization and physiological status under these conditions, (3) to investigate Cr phytoextraction potential, and finally (4) to determine practical usefulness of the plant species for reclamation of Cr-contaminated bottom sediments.…”

Section: Introductionmentioning

confidence: 99%

The use of Callitriche cophocarpa Sendtn. for the reclamation of Cr-contaminated freshwater habitat: benefits and limitations

Augustynowicz

Sitek

Bryniarski³

et al. 2020

Environ Sci Pollut Res

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This work is the first attempt to evaluate suitability of Callitriche cophocarpa Sendtn. (water-starwort) to remove Cr under realworld conditions. Our earlier laboratory-scale studies demonstrated outstanding hyperaccumulation properties of this aquatic higher plant (macrophyte) toward chromium in solution. We introduced C. cophocarpa plants into the watershed with sediments heavily polluted (on average 1400 mg/kg d.w. of Cr) by a tannery. The plants grew vigorously and exhibited no physiological or anatomical disorders. Based on chemical fractionations of bottom sediments, we found low Cr bioavailability. The element was strongly associated with the sediments and could be classified into the following fractions (%): oxidizable III (68.2) > residual IV (28.8) > reducible II (1.6) > exchangeable I (1.4). Despite this, Cr content in plant organs at the contaminated sites was 33 up to 83 times greater than in the control leaf/stem and roots, respectively. Altering redox potential during, i.e., sediment deposition on land may change chemical forms of bound metals in a solid phase, and thus further increase Cr phytoextraction by plants. With this in mind, we concluded that the species, being an outstanding Cr accumulator under laboratory conditions, can be useful in the reclamation of Cr-polluted sediments under controlled, oxidizing conditions.

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Bioaccumulation of potentially toxic elements by submerged plants and biofilms: A critical review

Cited by 85 publications

References 146 publications

Ecofriendly remediation technologies for wastewater contaminated with heavy metals with special focus on using water hyacinth and black tea wastes: a review

Ecofriendly remediation technologies for wastewater contaminated with heavy metals with special focus on using water hyacinth and black tea wastes: a review

Emerging contaminants affect the microbiome of water systems—strategies for their mitigation

The use of Callitriche cophocarpa Sendtn. for the reclamation of Cr-contaminated freshwater habitat: benefits and limitations

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