Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities

IntroductionThe plant restoration and ecological restoration of lead-zinc mines are very important.MethodsIn this study, we used three local plants to carry out ecological restoration of abandoned lead–zinc mining areas and detected the adaptive mechanisms of soil bacterial diversity and function du...

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Main Authors: Wei Gao, Shuyi Chen, Xin Yu, Sumin Chen, Caijing Wan, Ying Wang, Peng Wu, Qiang Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Microbiology
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Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2025.1533965/full
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author Wei Gao
Shuyi Chen
Xin Yu
Sumin Chen
Caijing Wan
Ying Wang
Peng Wu
Qiang Li
author_facet Wei Gao
Shuyi Chen
Xin Yu
Sumin Chen
Caijing Wan
Ying Wang
Peng Wu
Qiang Li
author_sort Wei Gao
collection DOAJ
description IntroductionThe plant restoration and ecological restoration of lead-zinc mines are very important.MethodsIn this study, we used three local plants to carry out ecological restoration of abandoned lead–zinc mining areas and detected the adaptive mechanisms of soil bacterial diversity and function during the ecological restoration of lead–zinc mines through 16S rRNA sequencing.ResultsThe results revealed that lead-zinc mining significantly reduced the soil bacterial diversity, including the Shannon, Simpson, and observed species indices, whereas the planting of the three ecological restoration plants restored the soil microbial diversity to a certain extent, leading to increases in the Shannon index and Observed species indices. Mining activities significantly reduced the abundances of RB41 and Bryobacter in the bulk soil compared with those in the nonmining areas, whereas the three ecological restoration plants increased the abundances of RB41 and Bryobacter in the rhizosphere soil compared with those in the bulk soil in the mining areas. Following the planting of the three types of ecologically restored plants, the soil bacterial community structure partially recovered. In addition, different plants have been found to have different functions in the lead-zinc ecological restoration process, including iron complex transport system-permitting proteins and ATP binding cassettes.DiscussionThis study confirms for the first time that plants adapt to the remediation process of abandoned lead-zinc mines by non-randomly assembling rhizosphere bacterial communities and functions, providing a reference for screening microbial remediation bacterial resources and plant microbe joint bioremediation strategies for lead-zinc mines.
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institution Kabale University
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publisher Frontiers Media S.A.
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spelling doaj-art-d8f45007569e4516b7a91de800cd02e92025-02-10T14:54:31ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-02-011610.3389/fmicb.2025.15339651533965Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communitiesWei Gao0Shuyi Chen1Xin Yu2Sumin Chen3Caijing Wan4Ying Wang5Peng Wu6Qiang Li7Clinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaClinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaClinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaClinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaClinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaClinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaYunnan Plateau Characteristic Agricultural Industry Research Institute, Yunnan Agricultural University, Kunming, Yunnan, ChinaClinical Medical College & Affiliated Hospital of Chengdu University, Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu, Sichuan, ChinaIntroductionThe plant restoration and ecological restoration of lead-zinc mines are very important.MethodsIn this study, we used three local plants to carry out ecological restoration of abandoned lead–zinc mining areas and detected the adaptive mechanisms of soil bacterial diversity and function during the ecological restoration of lead–zinc mines through 16S rRNA sequencing.ResultsThe results revealed that lead-zinc mining significantly reduced the soil bacterial diversity, including the Shannon, Simpson, and observed species indices, whereas the planting of the three ecological restoration plants restored the soil microbial diversity to a certain extent, leading to increases in the Shannon index and Observed species indices. Mining activities significantly reduced the abundances of RB41 and Bryobacter in the bulk soil compared with those in the nonmining areas, whereas the three ecological restoration plants increased the abundances of RB41 and Bryobacter in the rhizosphere soil compared with those in the bulk soil in the mining areas. Following the planting of the three types of ecologically restored plants, the soil bacterial community structure partially recovered. In addition, different plants have been found to have different functions in the lead-zinc ecological restoration process, including iron complex transport system-permitting proteins and ATP binding cassettes.DiscussionThis study confirms for the first time that plants adapt to the remediation process of abandoned lead-zinc mines by non-randomly assembling rhizosphere bacterial communities and functions, providing a reference for screening microbial remediation bacterial resources and plant microbe joint bioremediation strategies for lead-zinc mines.https://www.frontiersin.org/articles/10.3389/fmicb.2025.1533965/fullsoil pollutionmining activitiesbioremediationmicrobial diversityassembly mechanism
spellingShingle Wei Gao
Shuyi Chen
Xin Yu
Sumin Chen
Caijing Wan
Ying Wang
Peng Wu
Qiang Li
Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities
Frontiers in Microbiology
soil pollution
mining activities
bioremediation
microbial diversity
assembly mechanism
title Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities
title_full Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities
title_fullStr Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities
title_full_unstemmed Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities
title_short Three local plants adapt to ecological restoration of abandoned lead-zinc mines through assembly of rhizosphere bacterial communities
title_sort three local plants adapt to ecological restoration of abandoned lead zinc mines through assembly of rhizosphere bacterial communities
topic soil pollution
mining activities
bioremediation
microbial diversity
assembly mechanism
url https://www.frontiersin.org/articles/10.3389/fmicb.2025.1533965/full
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