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Lookup NU author(s): Andrea Giachino,
Dr Jon Marles-WrightORCiD,
Dr Kevin WaldronORCiD
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Oxford University Press, 2021.
For re-use rights please refer to the publisher's terms and conditions.
© The Author(s) 2020. Published by Oxford University Press on behalf of FEMS.One of the current aims of synthetic biology is the development of novel microorganisms that can mine economically important elements from the environment or remediate toxic waste compounds. Copper, in particular, is a high-priority target for bioremediation owing to its extensive use in the food, metal and electronic industries and its resulting common presence as an environmental pollutant. Even though microbe-aided copper biomining is a mature technology, its application to waste treatment and remediation of contaminated sites still requires further research and development. Crucially, any engineered copper-remediating chassis must survive in copper-rich environments and adapt to copper toxicity; they also require bespoke adaptations to specifically extract copper and safely accumulate it as a human-recoverable deposit to enable biorecycling. Here, we review current strategies in copper bioremediation, biomining and biorecycling, as well as strategies that extant bacteria use to enhance copper tolerance, accumulation and mineralization in the native environment. By describing the existing toolbox of copper homeostasis proteins from naturally occurring bacteria, we show how these modular systems can be exploited through synthetic biology to enhance the properties of engineered microbes for biotechnological copper recovery applications.
Author(s): Giachino A, Focarelli F, Marles-Wright J, Waldron KJ
Publication type: Article
Publication status: Published
Journal: FEMS microbiology ecology
Print publication date: 26/01/2021
Online publication date: 04/12/2020
Acceptance date: 02/12/2020
Date deposited: 29/03/2021
ISSN (print): 0168-6496
ISSN (electronic): 1574-6941
Publisher: Oxford University Press
PubMed id: 33501489
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