A review on mechanism and future perspectives of cadmium-resistant bacteria

Abbas, Syed Zaghum; Rafatullah, Mohd; Hossain, Kaizar; Ismail, Norli; Tajarudin, Husnul Azan; Khalil, H. P. S. Abdul

doi:10.1007/s13762-017-1400-5

Cited by 99 publications

(41 citation statements)

References 113 publications

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“…Gram-positive and gram-negative bacteria also possess cadmium resistance systems, which are generally composed by two genes, cadC coding for a helix-turn-helix transcriptional regulator that controls the second gene cadA, coding for a cadmium-translocating P-type ATPase. The loci of genes involved in cadmium resistance are either on plasmids or on chromosomes [31].…”

Section: Introductionmentioning

confidence: 99%

Identification of a New Heavy-Metal-Resistant Strain of Geobacillus stearothermophilus Isolated from a Hydrothermally Active Volcanic Area in Southern Italy

Puopolo

Gallo

Mormone

et al. 2020

IJERPH

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Microorganisms thriving in hot springs and hydrothermally active volcanic areas are dynamically involved in heavy-metal biogeochemical cycles; they have developed peculiar resistance systems to cope with such metals which nowadays can be considered among the most permanent and toxic pollutants for humans and the environment. For this reason, their exploitation is functional to unravel mechanisms of toxic-metal detoxification and to address bioremediation of heavy-metal pollution with eco-sustainable approaches. In this work, we isolated a novel strain of the thermophilic bacterium Geobacillus stearothermophilus from the solfataric mud pool in Pisciarelli, a well-known hydrothermally active zone of the Campi Flegrei volcano located near Naples in Italy, and characterized it by ribotyping, 16S rRNA sequencing and mass spectrometry analyses. The minimal inhibitory concentration (MIC) toward several heavy-metal ions indicated that the novel G. stearothermophilus isolate is particularly resistant to some of them. Functional and morphological analyses suggest that it is endowed with metal resistance systems for arsenic and cadmium detoxification.

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Section: Introductionmentioning

confidence: 99%

Identification of a New Heavy-Metal-Resistant Strain of Geobacillus stearothermophilus Isolated from a Hydrothermally Active Volcanic Area in Southern Italy

Puopolo

Gallo

Mormone

et al. 2020

IJERPH

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“…LAB are generally recognized as safe, promote health benefits when consumed, and are presently considered as probiotics . Many LAB possess cadmium tolerance by bioaccumulation and biosorption; however, their detoxifying properties and mechanisms have not been investigated so far . Most of the bacteria could not degrade or metabolize; rather, the binding Cd with cell wall components or surface factors might be the main mechanisms in LAB for toxicity prevention .…”

Section: Introductionmentioning

confidence: 99%

Biosorption of cadmium by potential probiotic Pediococcus pentosaceus using in vitro digestion model

Yang

2019

Biotech and App Biochem

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An exponential increase of heavy metal toxicant in the human body is a growing health-related problem. In the present study, Pediococcus pentosaceus FB145 and FB181 strains were isolated from fermented seafood and served as highly Cd-resistant strains. The unchanged structural cells of P. pentosaceus strains after treatment with Cd cations were investigated using a scanning electron microscope energy dispersive X-ray analysis. Furthermore, both P. pentosaceus strains showed strong human gastrointestinal tract resistance properties. The Cd biosorption results fit the pseudo-second-order kinetics with capacities for P. pentosaceus FB145 and FB181 for Cd were 52.8 and 50.3 mg/g, respectively, whereas the maximum biosorption capacities were 52.65 and 50.35 mg/g, respectively. The equilibrium data were well fitted to the Freundlich isotherm model. The binding of Cd to bacterial cells may be caused by the presence of different functional groups such as carboxyl, amide, and phosphate on cell surface, which was confirmed by the Fourier transform infrared-attenuated total reflectance spectra. Moreover, these strains decreased the Cd bioaccessibility by 44.7-46.8% in the in vitro digestion model. These findings indicate that P. pentosaceus FB145 and FB181 are novel potent biosorbent for preventing cadmium toxicity and reducing its absorption into the human body.

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“…Environmental effects associated with wastewater discharges are generally local with trans-boundary implications in some areas (Maruthi et al 2012c, d, e). The adverse public health, environmental, socio-economic, food quality and security and esthetic impacts from wastewater contamination in coastal areas are well documented (Abbas et al 2017;Danulat et al 2002;WHO 2003). Contamination of the coastal water may result in changes in nutrient levels, abundance, biomass and diversity of organisms, bioaccumulation of organic and inorganic compounds and alteration of tropic interaction among species Singh et al 2016;.…”

Section: Introductionmentioning

confidence: 99%

Irradiation of wastewater with electron beam is a key to sustainable smart/green cities: a review

Hossain¹,

Maruthi

Das

et al. 2018

Appl Water Sci

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Remediation of wastewater, sludge and removal of objectionable substances from our environment using radiation technology is neglected. Hardly, a couple of decades ago, application of electron beam (EB) technology has gained attention for waste management. When wastewater is irradiated with electron beam, the beam can alter the physico-chemical properties of irradiated aqueous material and also transform wastewater chemicals due to the excitation or ionization of chemical molecules. Thus, chemical reactions may be capable of producing new compounds. The beam of electrons initiates primary reactions to induce the excitation or ionization of molecules at varied rates. This review paper will help to a budding researcher how to optimize the irradiation process to achieve high efficiency with low electron beam energy which is economically viable/ feasible. Application of E-beam radiation for wastewater treatment may ensure future smart cities with sustainable water resources management.

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A review on mechanism and future perspectives of cadmium-resistant bacteria

Cited by 99 publications

References 113 publications

Identification of a New Heavy-Metal-Resistant Strain of Geobacillus stearothermophilus Isolated from a Hydrothermally Active Volcanic Area in Southern Italy

Identification of a New Heavy-Metal-Resistant Strain of Geobacillus stearothermophilus Isolated from a Hydrothermally Active Volcanic Area in Southern Italy

Biosorption of cadmium by potential probiotic Pediococcus pentosaceus using in vitro digestion model

Irradiation of wastewater with electron beam is a key to sustainable smart/green cities: a review

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