The Role of Bacterial Spores in Metal Cycling and Their Potential Application in Metal Contaminant Bioremediation

Bacteria are one of the premier biological forces that, in combination with chemical and physical forces, drive metal availability in the environment. Bacterial spores, when found in the environment, are often considered to be dormant and metabolically inactive, in a resting state waiting for favora...

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Bibliographic Details
Published in:Microbiology spectrum 2016-04, Vol.4 (2)
Main Authors: Butterfield, Cristina N, Lee, Sung-Woo, Tebo, Bradley M
Format: Article
Language:English
Subjects:
Bacteria
Bacteria - metabolism
Bacterial Genetics, Cell Biology, Physiology
Environmental Restoration and Remediation
Metals
Metals - metabolism
Metals - toxicity
Spores, Bacterial
Spores, Bacterial - metabolism
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Summary:Bacteria are one of the premier biological forces that, in combination with chemical and physical forces, drive metal availability in the environment. Bacterial spores, when found in the environment, are often considered to be dormant and metabolically inactive, in a resting state waiting for favorable conditions for them to germinate. However, this is a highly oversimplified view of spores in the environment. The surface of bacterial spores represents a potential site for chemical reactions to occur. Additionally, proteins in the outer layers (spore coats or exosporium) may also have more specific catalytic activity. As a consequence, bacterial spores can play a role in geochemical processes and may indeed find uses in various biotechnological applications. The aim of this review is to introduce the role of bacteria and bacterial spores in biogeochemical cycles and their potential use as toxic metal bioremediation agents.
ISSN:2165-0497
2165-0497
DOI:10.1128/microbiolspec.TBS-0018-2013