A Review of Asbestos Bioweathering by Siderophore-Producing Pseudomonas : A Potential Strategy of Bioremediation

Asbestos, silicate minerals present in soil and used for building constructions for many years, are highly toxic due primarily to the presence of high concentrations of the transition metal iron. Microbial weathering of asbestos occurs through various alteration mechanisms. Siderophores, complex age...

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Bibliographic Details
Published in:Microorganisms (Basel) 2020-11, Vol.8 (12), p.1870
Main Authors: David, Sébastien R, Geoffroy, Valérie A
Format: Article
Language:English
Subjects:
Asbestos
Bacteria
Bioremediation
Cement
Chelation
Chemical elements
Coordination compounds
Detoxification
Fibers
Free radicals
Gypsum
Heavy metals
Iron
Landfill
Magnesium
Metal concentrations
Micronutrients
Microorganisms
Minerals
Oxygen
Pseudomonas
Review
Siderophores
Silicon
Soils
Solidification
Toxicity
Transition metals
weathering
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Summary:Asbestos, silicate minerals present in soil and used for building constructions for many years, are highly toxic due primarily to the presence of high concentrations of the transition metal iron. Microbial weathering of asbestos occurs through various alteration mechanisms. Siderophores, complex agents specialized in metal chelation, are common mechanisms described in mineral alteration. Solubilized metals from the fiber can serve as micronutrients for telluric microorganisms. The review focuses on the bioweathering of asbestos fibers, found in soil or manufactured by humans with gypsum (asbestos flocking) or cement, by siderophore-producing . A better understanding of the interactions between asbestos and bacteria will give a perspective of a detoxification process inhibiting asbestos toxicity.
ISSN:2076-2607
2076-2607
DOI:10.3390/microorganisms8121870