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- Publisher Website: 10.1111/1462-2920.15259
- Scopus: eid_2-s2.0-85092422510
- PMID: 32996242
- WOS: WOS:000578554600001
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Article: Functional redundancy imparts process stability to acidic Fe(II)‐oxidizing microbial reactors
Title | Functional redundancy imparts process stability to acidic Fe(II)‐oxidizing microbial reactors |
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Authors | |
Issue Date | 2020 |
Publisher | Wiley-Blackwell Publishing Ltd. The Journal's web site is located at http://www.wiley.com/WileyCDA/WileyTitle/productCd-EMI.html |
Citation | Environmental Microbiology, 2020, Epub 2020-09-29 How to Cite? |
Abstract | In previous work, lab‐scale reactors designed to study microbial Fe(II) oxidation rates at low pH were found to have stable rates under a wide range of pH and Fe(II) concentrations. Since the stirred reactor environment eliminates many of the temporal and spatial variations that promote high diversity among microbial populations in nature, we were surprised that the reactors supported multiple taxa presumed to be autotrophic Fe(II) oxidizers based on their phylogeny. Metagenomic analyses of the reactor communities revealed differences in the metabolic potential of these taxa with respect to Fe(II) oxidation and carbon fixation pathways, acquisition of potentially growth‐limiting substrates and the ability to form biofilms. Our findings support the hypothesis that the long‐term co‐existence of multiple autotrophic Fe(II)‐oxidizing populations in the reactors are due to distinct metabolic potential that supports differential growth in response to limiting resources such as nitrogen, phosphorus and oxygen. Our data also highlight the role of biofilms in creating spatially distinct geochemical niches that enable the co‐existence of multiple taxa that occupy the same apparent metabolic niche when the system is viewed in bulk. The distribution of key metabolic functions across different co‐existing taxa supported functional redundancy and imparted process stability to these reactors. |
Persistent Identifier | http://hdl.handle.net/10722/289673 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 1.342 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ayala‐Muñoz, D | - |
dc.contributor.author | Simister, R | - |
dc.contributor.author | Crowe, SA | - |
dc.contributor.author | Macalady, J | - |
dc.contributor.author | Burgos, WD | - |
dc.date.accessioned | 2020-10-22T08:15:50Z | - |
dc.date.available | 2020-10-22T08:15:50Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Environmental Microbiology, 2020, Epub 2020-09-29 | - |
dc.identifier.issn | 1462-2912 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289673 | - |
dc.description.abstract | In previous work, lab‐scale reactors designed to study microbial Fe(II) oxidation rates at low pH were found to have stable rates under a wide range of pH and Fe(II) concentrations. Since the stirred reactor environment eliminates many of the temporal and spatial variations that promote high diversity among microbial populations in nature, we were surprised that the reactors supported multiple taxa presumed to be autotrophic Fe(II) oxidizers based on their phylogeny. Metagenomic analyses of the reactor communities revealed differences in the metabolic potential of these taxa with respect to Fe(II) oxidation and carbon fixation pathways, acquisition of potentially growth‐limiting substrates and the ability to form biofilms. Our findings support the hypothesis that the long‐term co‐existence of multiple autotrophic Fe(II)‐oxidizing populations in the reactors are due to distinct metabolic potential that supports differential growth in response to limiting resources such as nitrogen, phosphorus and oxygen. Our data also highlight the role of biofilms in creating spatially distinct geochemical niches that enable the co‐existence of multiple taxa that occupy the same apparent metabolic niche when the system is viewed in bulk. The distribution of key metabolic functions across different co‐existing taxa supported functional redundancy and imparted process stability to these reactors. | - |
dc.language | eng | - |
dc.publisher | Wiley-Blackwell Publishing Ltd. The Journal's web site is located at http://www.wiley.com/WileyCDA/WileyTitle/productCd-EMI.html | - |
dc.relation.ispartof | Environmental Microbiology | - |
dc.rights | Preprint This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Postprint This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | - |
dc.title | Functional redundancy imparts process stability to acidic Fe(II)‐oxidizing microbial reactors | - |
dc.type | Article | - |
dc.identifier.email | Crowe, SA: sacrowe@hku.hk | - |
dc.identifier.authority | Crowe, SA=rp02537 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1111/1462-2920.15259 | - |
dc.identifier.pmid | 32996242 | - |
dc.identifier.scopus | eid_2-s2.0-85092422510 | - |
dc.identifier.hkuros | 316149 | - |
dc.identifier.volume | Epub 2020-09-29 | - |
dc.identifier.isi | WOS:000578554600001 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.issnl | 1462-2912 | - |