气候变化领域集成服务门户(CCPortal): Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination

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DOI	10.1111/ele.12878
	Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination
	Hesse E.; O'Brien S.; Tromas N.; Bayer F.; Luján A.M.; van Veen E.M.; Hodgson D.J.; Buckling A.
发表日期	2018
ISSN	1461023X
卷号	21 期号:1
英文摘要	Some microbial public goods can provide both individual and community-wide benefits, and are open to exploitation by non-producing species. One such example is the production of metal-detoxifying siderophores. Here, we investigate whether conflicting selection pressures on siderophore production by heavy metals – a detoxifying effect of siderophores, and exploitation of this detoxifying effect – result in a net increase or decrease. We show that the proportion of siderophore-producing taxa increases along a natural heavy metal gradient. A causal link between metal contamination and siderophore production was subsequently demonstrated in a microcosm experiment in compost, in which we observed changes in community composition towards taxa that produce relatively more siderophores following copper contamination. We confirmed the selective benefit of siderophores by showing that taxa producing large amounts of siderophore suffered less growth inhibition in toxic copper. Our results suggest that ecological selection will favour siderophore-mediated decontamination, with important consequences for potential remediation strategies. © 2017 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd.
英文关键词	Adaptation; detoxification; ecological species sorting; evolution; metal tolerance; public good dynamics; remediation; selection
语种	英语
scopus关键词	heavy metal; siderophore; ecology; genetic selection; water pollutant; Ecology; Metals, Heavy; Selection, Genetic; Siderophores; Water Pollutants, Chemical
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121368
作者单位	ESI & CEC, Biosciences, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, United Kingdom; Institut für Integrative Biologie, ETH Zürich, Universitätstrasse 16, Zürich, 8092, Switzerland; Département de Sciences Biologiques, Université de Montréal, 90 Vincent-d'Indy, Montréal, QC H2V 2S9, Canada; CIQUIBIC, Departamento de Química Biológica, Facultad de Ciencias Químicas, CONICET, Universidad Nacional de Córdoba, Córdoba, X5000HUA, Argentina; Camborne School of Mines, CEMPS, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, United Kingdom; CEC, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, United Kingdom
推荐引用方式 GB/T 7714	Hesse E.,O'Brien S.,Tromas N.,et al. Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination[J],2018,21(1).
APA	Hesse E..,O'Brien S..,Tromas N..,Bayer F..,Luján A.M..,...&Buckling A..(2018).Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination.Ecology Letters,21(1).
MLA	Hesse E.,et al."Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination".Ecology Letters 21.1(2018).