globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12878
Scopus记录号: 2-s2.0-85034651566
论文题名:
Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination
作者: Hesse E.; O'Brien S.; Tromas N.; Bayer F.; Luján A.M.; van Veen E.M.; Hodgson D.J.; Buckling A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期:1
起始页码: 117
结束页码: 127
语种: 英语
英文关键词: Adaptation ; detoxification ; ecological species sorting ; evolution ; metal tolerance ; public good dynamics ; remediation ; selection
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107531
Appears in Collections:气候减缓与适应

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作者单位: ESI & CEC, Biosciences, University of Exeter, Penryn Campus, Cornwall, United Kingdom; Institut für Integrative Biologie, ETH Zürich, Universitätstrasse 16, Zürich, Switzerland; Département de Sciences Biologiques, Université de Montréal, 90 Vincent-d'Indy, Montréal, QC, Canada; CIQUIBIC, Departamento de Química Biológica, Facultad de Ciencias Químicas, CONICET, Universidad Nacional de Córdoba, Córdoba, Argentina; Camborne School of Mines, CEMPS, University of Exeter, Penryn Campus, Cornwall, United Kingdom; CEC, University of Exeter, Penryn Campus, Cornwall, United Kingdom

Recommended Citation:
Hesse E.,O'Brien S.,Tromas N.,et al. Ecological selection of siderophore-producing microbial taxa in response to heavy metal contamination[J]. Ecology Letters,2018-01-01,21(1)
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