Surface binding and intracellular uptake of arsenic in bacteria isolated from arsenic contaminated site

Vishnoi, Neha; Dixit, Sonal; Singh, Devendra P.

doi:10.1016/j.ecoleng.2014.09.090

Cited by 16 publications

(5 citation statements)

References 45 publications

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“…The value of regression coefficient (R 2 ) for Freundlich (0Á9829) was higher in this study than that for Langmuir equation (0Á9455) thus suggesting multilayer chemisorption of As on the surface of bacterial cells. Distinctively from the present study, the results of Banerjee et al (2016) and Vishnoi et al (2014) presented monolayer sorption of As on bacterial biomass of Pseudomonas and Bacillus sp. respectively.…”

Section: Discussionsupporting

confidence: 40%

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Prospective role of indigenousExiguobacterium profundumPT2 in arsenic biotransformation and biosorption by planktonic cultures and biofilms

Saba

Andreasen

et al. 2018

J Appl Microbiol

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Section: Discussionsupporting

confidence: 40%

“…() and Vishnoi et al . () presented monolayer sorption of As on bacterial biomass of Pseudomonas and Bacillus sp. respectively.…”

Section: Discussionmentioning

confidence: 99%

Prospective role of indigenousExiguobacterium profundumPT2 in arsenic biotransformation and biosorption by planktonic cultures and biofilms

Saba

Andreasen

et al. 2018

J Appl Microbiol

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“…These events, in turn, allow bacteria to lower metal(loid) local concentration and, hence, their toxicity [ 69 ]. Furthermore, shifts of several polysaccharide vibrational modes ( Tables S5–S7 )—mainly deriving from peptidoglycan, teichoic, lipoteichoic, and teichuronic acids of the cell wall [ 27 ]—of bacterial cells incubated with TeO 3 2− might indicate (i) the interaction of these macromolecules with the oxyanion, (ii) the modification of the produced EPS to increase its metal(loid)-binding ability, or (iii) the alteration of the peptidoglycan structure [ 22 , 69 , 73 , 74 ] to counteract the oxyanion stress. Similar observations applied to the variation of normalized integrals ascribed to IR polysaccharide contributions ( Figure S9a–c ).…”

Section: Discussionmentioning

confidence: 99%

Tolerance, Adaptation, and Cell Response Elicited by Micromonospora sp. Facing Tellurite Toxicity: A Biological and Physical-Chemical Characterization

Piacenza

Campora

Pavia

et al. 2022

IJMS

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The intense use of tellurium (Te) in industrial applications, along with the improper disposal of Te-derivatives, is causing their accumulation in the environment, where oxyanion tellurite (TeO32−) is the most soluble, bioavailable, and toxic Te-species. On the other hand, tellurium is a rare metalloid element whose natural supply will end shortly with possible economic and technological effects. Thus, Te-containing waste represents the source from which Te should be recycled and recovered. Among the explored strategies, the microbial TeO32− biotransformation into less toxic Te-species is the most appropriate concerning the circular economy. Actinomycetes are ideal candidates in environmental biotechnology. However, their exploration in TeO32− biotransformation is scarce due to limited knowledge regarding oxyanion microbial processing. Here, this gap was filled by investigating the cell tolerance, adaptation, and response to TeO32− of a Micromonospora strain isolated from a metal(loid)-rich environment. To this aim, an integrated biological, physical-chemical, and statistical approach combining physiological and biochemical assays with confocal or scanning electron (SEM) microscopy and Fourier-transform infrared spectroscopy in attenuated total reflectance mode (ATR-FTIR) was designed. Micromonospora cells exposed to TeO32− under different physiological states revealed a series of striking cell responses, such as cell morphology changes, extracellular polymeric substance production, cell membrane damages and modifications, oxidative stress burst, protein aggregation and phosphorylation, and superoxide dismutase induction. These results highlight this Micromonospora strain as an asset for biotechnological purposes.

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“…There are different methods for the decontamination of dairy products, such as physical, chemical (reverse osmosis, ion exchange, freeze concentration, and evaporation) (Patterson and Minear, 2013), and biological methods (using different biomaterials such as bacteria and yeasts biomass, plants, and seaweeds) (Abdelmotilib et al, 2018;Hashim and Chu, 2004;Hayat et al, 2017;Satyapal et al, 2016;Sulaymon et al, 2013;Vishnoi et al, 2014). Adsorption is one of the most important decontamination strategies in dairy products (Giovati et al, 2015;Massoud et al, 2019;Milanowski et al, 2017;Porova et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Biodecontamination of milk and dairy products by probiotics: Boon for bane

Mirmahdi

Zoghi²,

Mohammadi

et al. 2021

Ital. J. Food Sci.

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In recent decades, “contamination of the environment, food, and feed by different contaminants such as heavy metals and toxins is increasing due to industrial life.” Commercial milk and milk products can be contaminated with heavy metals and mycotoxins. Biosorption is a low-cost method and has good potential for decontamination. In dairy products, “various starters, especially probiotics, can be used as biosorbants, while microorganisms are able to bind to heavy metals and toxins and decrease their bioavailability and hazards in the human body.” In this article, the key role of dairy starters and probiotics in the decontamination of toxins and heavy metals, and the best probiotics for decontamination of aflatoxins and heavy metals has been reviewed. After a quick glance at introducing dairy products and the main risks in association with the intake of some hazardous materials from dairy products, the application of biological systems is mentioned. Then, the article is focused on the role of beneficial microorganisms as the last chance to decrease the risk of exposure to toxins and heavy metals in dairy products. This review can be helpful for biotechnologists and scientists who have challenges about the existence of heavy metals and toxins in milk and dairy products, and help them to find the best method to decrease the content of the usual contaminants.

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Surface binding and intracellular uptake of arsenic in bacteria isolated from arsenic contaminated site

Cited by 16 publications

References 45 publications

Prospective role of indigenousExiguobacterium profundumPT2 in arsenic biotransformation and biosorption by planktonic cultures and biofilms

Prospective role of indigenousExiguobacterium profundumPT2 in arsenic biotransformation and biosorption by planktonic cultures and biofilms

Tolerance, Adaptation, and Cell Response Elicited by Micromonospora sp. Facing Tellurite Toxicity: A Biological and Physical-Chemical Characterization

Biodecontamination of milk and dairy products by probiotics: Boon for bane

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