A combined compost, dolomite, and endophyte addition is more effective than single amendments for improving phytorestoration of metal contaminated mine tailings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F24%3A43927547" target="_blank" >RIV/60461373:22330/24:43927547 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s11104-023-06338-3" target="_blank" >https://link.springer.com/article/10.1007/s11104-023-06338-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11104-023-06338-3" target="_blank" >10.1007/s11104-023-06338-3</a>
Alternative languages
Result language
angličtina
Original language name
A combined compost, dolomite, and endophyte addition is more effective than single amendments for improving phytorestoration of metal contaminated mine tailings
Original language description
Background and aimsRe-vegetation of mining-impacted landscapes reduces transport of toxic elements while improving soil fertility. This study evaluated whether the planting of a native perennial grass with a consortium of diazotrophic microbial endophytes and municipal waste compost-alone and in combination-enhanced plant growth while stabilizing metal(loids) in dolomite-amended tailings from a historically mined polymetallic mineral deposit.MethodsWe grew Bouteloua curtipendula seedlings in tailings with hazardous concentrations of As, Cd, Pb, Mn, and Zn. We evaluated how plant growth, organic matter accumulation, and major, minor, and trace element mobilization and phytostabilization responded to microbial endophyte and/or compost amendments after the 45-day growth experiment.ResultsAlthough most of the added endophytes were not uniquely identified, the best plant growth and fertility outcomes were achieved with a combination of amendments: dolomite to reduce acidity, compost to increase nitrogen, and a mixed consortium endophyte seed coating to synergistically increase organic carbon and grass biomass yields. Compost reduced shoot and root concentrations-but not yields-of contaminant metals. Endophytes increased foliar Cd, Co, Mn, and Pb yields but mobilized Pb and Zn from the tailings. Root stabilization of Cd, Co, Mn did not require amendments.ConclusionThe most effective means of revegetating these acidic, polymetallic tailings with the native B. curtipendula is with a simultaneous dolomite, compost, and endophyte seed treatment. Due to potential phosphate solubilization and siderophore production by this consortium of endophytes, strategies to capture solubilized metal(loids) may be needed for sulfidic tailings with metal(loids) associated with mobile mineral phases.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20802 - Bioremediation, diagnostic biotechnologies (DNA chips and biosensing devices) in environmental management
Result continuities
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)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PLANT AND SOIL
ISSN
0032-079X
e-ISSN
1573-5036
Volume of the periodical
497
Issue of the periodical within the volume
1-2
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
22
Pages from-to
"219–240"
UT code for WoS article
001100622800001
EID of the result in the Scopus database
2-s2.0-85176394347