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Petroleum-contamination drives the shift of microbiome through modifying soil metallome
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  • Zhe Liu,
  • Meixia Gu,
  • Wei Zhu,
  • Mengru Zhang,
  • Weizhi Zhou
Zhe Liu
Shandong University

Corresponding Author:1318315178@qq.com

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Meixia Gu
Sinopec Petroleum Engineering Design Co., Ltd
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Wei Zhu
Sinopec Petroleum Engineering Design Co., Ltd
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Mengru Zhang
Shandong University
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Weizhi Zhou
Shandong University
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Abstract

Soil oil-pollution is one of the most severe environmental issues at present. Shifts of soil metallome and microbiome are essential indicators for risk assessment and remediation of field soil pollutions, but not well studied undergoing the petroleum contamination. In this research, soil samples were collected from a short-term and long-term petroleum-contaminated oil field. The soil physicochemical properties, metallome, microbial community, and polluted and unpolluted soil network were testified. Results showed that the contents of soil total petroleum hydrocarbon, total carbon, total nitrogen, total sulfur, total phosphorus, calcium, copper, manganese, lead, and zinc were increased by petroleum contamination. In contrast, the soil pH was decreased by petroleum contamination regardless of the pollution duration. Petroleum-contamination also reduced bacterial and fungal α-diversity indices. In contrast, bacterial α-diversity was negatively correlated with soil TPH and EC, and fungal α-diversity was negatively correlated with soil EC. Moreover, the relative abundances of Proteobacteria, Ascomycota, Oleibacter, and Fusarium in soil were increased by petroleum contamination. Network analysis showed that number of links, modules and the network invulnerability decreased in PS, followed by the OS group. These results demonstrate that short-term heavy petroleum contamination can cause shifts in soil physicochemical properties, metallome, and microbiome and assemble a less complex and vulnerable soil microbial network. Moreover, natural restoration can hardly amend soil properties and microbial network structure. This research emphasizes that the uncommonly studied soil metallome may play a vital part in the reaction of soil microbial communities to petroleum-contamination and potential application value of synthetic community in bioremediation.
09 Nov 2021Submitted to Land Degradation & Development
10 Nov 2021Submission Checks Completed
10 Nov 2021Assigned to Editor
16 Nov 2021Reviewer(s) Assigned
07 Jan 2022Review(s) Completed, Editorial Evaluation Pending
07 Jan 2022Editorial Decision: Revise Major
26 Jan 20221st Revision Received
31 Jan 2022Submission Checks Completed
31 Jan 2022Assigned to Editor
07 Mar 2022Review(s) Completed, Editorial Evaluation Pending
07 Mar 2022Editorial Decision: Revise Minor
09 Mar 20222nd Revision Received
09 Mar 2022Submission Checks Completed
09 Mar 2022Assigned to Editor
10 Mar 2022Review(s) Completed, Editorial Evaluation Pending
10 Mar 2022Editorial Decision: Accept
Jun 2022Published in Land Degradation & Development volume 33 issue 10 on pages 1718-1730. 10.1002/ldr.4260