Compost, plants and endophytes versus metal contamination: choice of a restoration strategy steers the microbiome in polymetallic mine waste

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F23%3A43927412" target="_blank" >RIV/60461373:22330/23:43927412 - isvavai.cz</a>

Result on the web

<a href="https://environmentalmicrobiome.biomedcentral.com/articles/10.1186/s40793-023-00528-3" target="_blank" >https://environmentalmicrobiome.biomedcentral.com/articles/10.1186/s40793-023-00528-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s40793-023-00528-3" target="_blank" >10.1186/s40793-023-00528-3</a>

Result language

angličtina

Original language name

Compost, plants and endophytes versus metal contamination: choice of a restoration strategy steers the microbiome in polymetallic mine waste

Original language description

Finding solutions for the remediation and restoration of abandoned mining areas is of great environmental importance as they pose a risk to ecosystem health. In this study, our aim was to determine how remediation strategies with (i) compost amendment, (ii) planting a metal-tolerant grass Bouteloua curtipendula, and (iii) its inoculation with beneficial endophytes influenced the microbiome of metal-contaminated tailings originating from the abandoned Blue Nose Mine, SE Arizona, near Patagonia (USA). We conducted an indoor microcosm experiment followed by a metataxonomic analysis of the mine tailings, compost, and root samples. Our results showed that each remediation strategy promoted a distinct pattern of microbial community structure in the mine tailings, which correlated with changes in their chemical properties. The combination of compost amendment and endophyte inoculation led to the highest prokaryotic diversity and total nitrogen and organic carbon, but also induced shifts in microbial community structure that significantly correlated with an enhanced potential for mobilization of Cu and Sb. Our findings show that soil health metrics (total nitrogen, organic carbon and pH) improved, and microbial community changed, due to organic matter input and endophyte inoculation, which enhanced metal leaching from the mine waste and potentially increased environmental risks posed by Cu and Sb. We further emphasize that because the initial choice of remediation strategy can significantly impact trace element mobility via modulation of both soil chemistry and microbial communities, site specific, bench-scale preliminary tests, as reported here, can help determine the potential risk of a chosen strategy.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

<a href="/en/project/GA22-00132S" target="_blank" >GA22-00132S: Life at the Interface: Ecology of Plant-Associated Microorganisms</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Environmental Microbiome

ISSN

2524-6372

e-ISSN

2524-6372

Volume of the periodical

18

Issue of the periodical within the volume

OCT 7 2023

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

74

UT code for WoS article

001080801100001

EID of the result in the Scopus database

2-s2.0-85173947888