Metal(loid) speciation and transformation by aerobic methanotrophs

KARTHIKEYAN, Obulisamy Parthiba, SMITH, Thomas J., DANDARE, Shamsudeen Umar, PARWIN, Kamaludeen Sara, SINGH, Heetasmin, LOH, Hui Xin, CUNNINGHAM, Mark R, WILLIAMS, Paul Nicholas, NICHOL, Tim, SUBRAMANIAN, Avudainayagam, RAMASAMY, Kumarasamy and KUMARESAN, Deepak (2021). Metal(loid) speciation and transformation by aerobic methanotrophs. Microbiome, 9 (1).

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Abstract: Manufacturing and resource industries are the key drivers for economic growth with a huge environmental cost (e.g. discharge of industrial effluents and post-mining substrates). Pollutants from waste streams, either organic or inorganic (e.g. heavy metals), are prone to interact with their physical environment that not only affects the ecosystem health but also the livelihood of local communities. Unlike organic pollutants, heavy metals or trace metals (e.g. chromium, mercury) are non-biodegradable, bioaccumulate through food-web interactions and are likely to have a long-term impact on ecosystem health. Microorganisms provide varied ecosystem services including climate regulation, purification of groundwater, rehabilitation of contaminated sites by detoxifying pollutants. Recent studies have highlighted the potential of methanotrophs, a group of bacteria that can use methane as a sole carbon and energy source, to transform toxic metal (loids) such as chromium, mercury and selenium. In this review, we synthesise recent advances in the role of essential metals (e.g. copper) for methanotroph activity, uptake mechanisms alongside their potential to transform toxic heavy metal (loids). Case studies are presented on chromium, selenium and mercury pollution from the tanneries, coal burning and artisanal gold mining, respectively, which are particular problems in the developing economy that we propose may be suitable for remediation by methanotrophs. 6g_ZKsLH11vt1AExshJzH4Video Abstract

Item Type: Article
Additional Information: ** From Springer Nature via Jisc Publications Router ** Licence for this article: **Journal IDs: eissn 2049-2618 **Article IDs: publisher-id: s40168-021-01112-y; manuscript: 1112 **History: collection 12-2021; online 06-07-2021; published 06-07-2021; registration 09-06-2021; accepted 09-06-2021; submitted 21-01-2021
Uncontrolled Keywords: Review, Methanotrophs, Metalloenzymes, Methanobactin, Metal transformation and speciation, Bioremediation
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SWORD Depositor: Colin Knott
Depositing User: Colin Knott
Date Deposited: 12 Jul 2021 16:25
Last Modified: 12 Jul 2021 16:30

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