Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate
Abstract There is a knowledge gap about the quantitative aspects of mycorrhizal fungi’s influence on ecological succession on tailings. Here, we demonstrate that inoculating mine tailings with 2% fungi yields significantly better results in terms of plant biomass and lower lipid peroxidation compare...
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Nature Portfolio
2025-08-01
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| Online Access: | https://doi.org/10.1038/s41598-025-14973-2 |
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| author | Aurora Neagoe Minodora Manu Marilena Onete Luiza-Silvia Mihai George Dincă Denisa Jianu Stelian Ion Virgil Iordache |
| author_facet | Aurora Neagoe Minodora Manu Marilena Onete Luiza-Silvia Mihai George Dincă Denisa Jianu Stelian Ion Virgil Iordache |
| author_sort | Aurora Neagoe |
| collection | DOAJ |
| description | Abstract There is a knowledge gap about the quantitative aspects of mycorrhizal fungi’s influence on ecological succession on tailings. Here, we demonstrate that inoculating mine tailings with 2% fungi yields significantly better results in terms of plant biomass and lower lipid peroxidation compared to 1% and 0%, both when growing Agrostis capillaris alone and in combination with Melilotus albus. Lipid peroxidation in the A. capillaris is positively predicted by Cu, and negatively predicted by the total Kjeldahl nitrogen in plants. The biomass of M. albus is positively predicted by the N/P ratio, and negatively by Cu concentration in the plant. This improvement was related to differences between the Technosols properties at the end of the experiment (pH, EC, N-NH4 +, N-NO3 −), which modulated the changes of the tailing material properties from the wet to the dry state, and to differences in the accumulation factors of Cu and Pb from substrate to plant roots, and of the transfer factors from roots to aboveground parts. This is the first time that the effects of such a slight increase in fungal inoculum percentage have been reported. Fine-tuning the fungi treatment can lead to cost-effective techniques for tailings remediation. Block diagrams of an eco-technology are proposed. |
| format | Article |
| id | doaj-art-6087709b16b94a4f9e9089d28e5d3c7e |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-6087709b16b94a4f9e9089d28e5d3c7e2025-08-20T03:47:10ZengNature PortfolioScientific Reports2045-23222025-08-0115111610.1038/s41598-025-14973-2Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rateAurora Neagoe0Minodora Manu1Marilena Onete2Luiza-Silvia Mihai3George Dincă4Denisa Jianu5Stelian Ion6Virgil Iordache7Research Centre for Ecological Services - CESEC “Dan Manoleli” Faculty of BiologyInstitute of Biology Bucharest, Department of Taxonomy, Ecology, and Nature ConservationInstitute of Biology Bucharest, Department of Taxonomy, Ecology, and Nature ConservationInstitute of Biology Bucharest, Department of Taxonomy, Ecology, and Nature ConservationResearch Centre for Ecological Services - CESEC “Dan Manoleli” Faculty of BiologyLythos Research Centre, Faculty of Geology, University of BucharestGheorghe Mihoc - Caius Iacob Institute of Statistical Mathematics and Applied Mathematics, Romanian AcademyResearch Centre for Ecological Services - CESEC “Dan Manoleli” Faculty of BiologyAbstract There is a knowledge gap about the quantitative aspects of mycorrhizal fungi’s influence on ecological succession on tailings. Here, we demonstrate that inoculating mine tailings with 2% fungi yields significantly better results in terms of plant biomass and lower lipid peroxidation compared to 1% and 0%, both when growing Agrostis capillaris alone and in combination with Melilotus albus. Lipid peroxidation in the A. capillaris is positively predicted by Cu, and negatively predicted by the total Kjeldahl nitrogen in plants. The biomass of M. albus is positively predicted by the N/P ratio, and negatively by Cu concentration in the plant. This improvement was related to differences between the Technosols properties at the end of the experiment (pH, EC, N-NH4 +, N-NO3 −), which modulated the changes of the tailing material properties from the wet to the dry state, and to differences in the accumulation factors of Cu and Pb from substrate to plant roots, and of the transfer factors from roots to aboveground parts. This is the first time that the effects of such a slight increase in fungal inoculum percentage have been reported. Fine-tuning the fungi treatment can lead to cost-effective techniques for tailings remediation. Block diagrams of an eco-technology are proposed.https://doi.org/10.1038/s41598-025-14973-2Agrostis capillarisArbuscular mycorrhizal fungiHeavy metalsMelilotus albusTechnosolPhytostabilization |
| spellingShingle | Aurora Neagoe Minodora Manu Marilena Onete Luiza-Silvia Mihai George Dincă Denisa Jianu Stelian Ion Virgil Iordache Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate Scientific Reports Agrostis capillaris Arbuscular mycorrhizal fungi Heavy metals Melilotus albus Technosol Phytostabilization |
| title | Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate |
| title_full | Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate |
| title_fullStr | Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate |
| title_full_unstemmed | Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate |
| title_short | Increasing the fungal inoculation of mine tailings from 1 to 2% decreases plant oxidative stress and increases the soil respiration rate |
| title_sort | increasing the fungal inoculation of mine tailings from 1 to 2 decreases plant oxidative stress and increases the soil respiration rate |
| topic | Agrostis capillaris Arbuscular mycorrhizal fungi Heavy metals Melilotus albus Technosol Phytostabilization |
| url | https://doi.org/10.1038/s41598-025-14973-2 |
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