Social evolution of toxic metal bioremediation in Pseudomonas aeruginosa
dc.contributor.author | O'Brien, S | |
dc.contributor.author | Hodgson, DJ | |
dc.contributor.author | Buckling, A | |
dc.date.accessioned | 2019-11-28T10:53:14Z | |
dc.date.issued | 2014-07-22 | |
dc.description.abstract | Bacteria are often iron-limited, and hence produce extracellular iron-scavenging siderophores. A crucial feature of siderophore production is that it can be an altruistic behaviour (individually costly but benefitting neighbouring cells), thus siderophore producers can be invaded by non-producing social 'cheats'. Recent studies have shown that siderophores can also bind other heavy metals (such as Cu and Zn), but in this case siderophore chelation actually reduces metal uptake by bacteria. These complexes reduce heavy metal toxicity, hence siderophore production may contribute to toxic metal bioremediation. Here, we show that siderophore production in the context of bioremediation is also an altruistic trait and can be exploited by cheating phenotypes in the opportunistic pathogen Pseudomonas aeruginosa. Specifically, we show that in toxic copper concentrations (i) siderophore non-producers evolve de novo and reach high frequencies, and (ii) producing strains are fitter than isogenic non-producing strains in monoculture, and vice versa in co-culture. Moreover, we show that the evolutionary effect copper has on reducing siderophore production is greater than the reduction observed under iron-limited conditions. We discuss the relevance of these results to the evolution of siderophore production in natural communities and heavy metal bioremediation. © 2014 The Authors Published by the Royal Society. All rights reserved. | en_GB |
dc.description.sponsorship | AXA | en_GB |
dc.description.sponsorship | Natural Environment Research Council (NERC) | en_GB |
dc.description.sponsorship | University of Exeter | en_GB |
dc.identifier.citation | Vol. 281 (1787), article 20140858 | en_GB |
dc.identifier.doi | 10.1098/rspb.2014.0858 | |
dc.identifier.uri | http://hdl.handle.net/10871/39858 | |
dc.language.iso | en | en_GB |
dc.publisher | Royal Socirty | en_GB |
dc.relation.url | http://hdl.handle.net/10871/16448 | en_GB |
dc.rights | © 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License https://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited. | en_GB |
dc.subject | cooperation | en_GB |
dc.subject | bioremediation | en_GB |
dc.subject | public goods | en_GB |
dc.subject | Pseudomonas | en_GB |
dc.subject | bacterial communities | en_GB |
dc.title | Social evolution of toxic metal bioremediation in Pseudomonas aeruginosa | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2019-11-28T10:53:14Z | |
dc.identifier.issn | 0962-8452 | |
dc.description | This is the final version. Available on open access from the Royal Society via the DOI in this record | en_GB |
dc.description | There is another ORE record for this publication: http://hdl.handle.net/10871/16448 | en_GB |
dc.identifier.journal | Proceedings of the Royal Society B: Biological Sciences | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | en_GB |
pubs.euro-pubmed-id | MED:24898376 | |
dcterms.dateAccepted | 2014-05-09 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2014-07-22 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2019-11-28T10:49:48Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2019-11-28T10:53:24Z | |
refterms.panel | A | en_GB |
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Except where otherwise noted, this item's licence is described as © 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License https://creativecommons.org/licenses/by/3.0/, which permits unrestricted use, provided the original author and source are credited.