Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia
In this study, extremophile fungal species isolated from pure loparite-containing sands and their tolerance/resistance to the lanthanides Ce and Nd were investigated. The loparite-containing sands were collected at the tailing dumps of an enterprise developing a unique polar deposit of niobium, tant...
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MDPI AG
2023-04-01
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| Series: | Journal of Fungi |
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| Online Access: | https://www.mdpi.com/2309-608X/9/5/506 |
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| author | Oleg I. Shumilov Elena A. Kasatkina Irina Y. Kirtsideli Dmitry V. Makarov |
| author_facet | Oleg I. Shumilov Elena A. Kasatkina Irina Y. Kirtsideli Dmitry V. Makarov |
| author_sort | Oleg I. Shumilov |
| collection | DOAJ |
| description | In this study, extremophile fungal species isolated from pure loparite-containing sands and their tolerance/resistance to the lanthanides Ce and Nd were investigated. The loparite-containing sands were collected at the tailing dumps of an enterprise developing a unique polar deposit of niobium, tantalum and rare-earth elements (REEs) of the cerium group: the Lovozersky Mining and Processing Plant (MPP), located in the center of the Kola Peninsula (northwestern Russia). From the 15 fungal species found at the site, one of the most dominant isolates was identified by molecular analysis as the zygomycete fungus <i>Umbelopsis isabellina</i> (GenBank accession no. OQ165236). Fungal tolerance/resistance was evaluated using different concentrations of CeCl<sub>3</sub> and NdCl<sub>3</sub>. <i>Umbelopsis isabellina</i> exhibited a higher degree of tolerance/resistance to cerium and neodymium than did the other dominant isolates (<i>Aspergillus niveoglaucus</i>, <i>Geomyces vinaceus</i> and <i>Penicillium simplicissimum</i>). The fungus began to be inhibited only after being exposed to 100 mg L<sup>−1</sup> of NdCl<sub>3</sub>. The toxic effects of Ce were not observed in fungus growth until it was subjected to 500 mg∙L<sup>−1</sup> of CeCl<sub>3</sub>. Moreover, only <i>U. isabellina</i> started to grow after extreme treatment with 1000 mg∙L<sup>−1</sup> of CeCl<sub>3</sub> one month after inoculation. This work indicates, for the first time, the potential of <i>Umbelopsis isabellina</i> to remove REEs from the loparite ore tailings, making it a suitable candidate for the development of bioleaching methods. |
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| issn | 2309-608X |
| language | English |
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| publishDate | 2023-04-01 |
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| spelling | doaj.art-0b019954a9604a40b79efef7b3f84f442023-11-18T02:01:26ZengMDPI AGJournal of Fungi2309-608X2023-04-019550610.3390/jof9050506Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern RussiaOleg I. Shumilov0Elena A. Kasatkina1Irina Y. Kirtsideli2Dmitry V. Makarov3Institute of North Industrial Ecology Problems, Kola Science Centre, Russian Academy of Sciences, 184209 Apatity, RussiaInstitute of North Industrial Ecology Problems, Kola Science Centre, Russian Academy of Sciences, 184209 Apatity, RussiaKomarov Botanical Institute, Russian Academy of Sciences, 197376 Saint Petersburg, RussiaInstitute of North Industrial Ecology Problems, Kola Science Centre, Russian Academy of Sciences, 184209 Apatity, RussiaIn this study, extremophile fungal species isolated from pure loparite-containing sands and their tolerance/resistance to the lanthanides Ce and Nd were investigated. The loparite-containing sands were collected at the tailing dumps of an enterprise developing a unique polar deposit of niobium, tantalum and rare-earth elements (REEs) of the cerium group: the Lovozersky Mining and Processing Plant (MPP), located in the center of the Kola Peninsula (northwestern Russia). From the 15 fungal species found at the site, one of the most dominant isolates was identified by molecular analysis as the zygomycete fungus <i>Umbelopsis isabellina</i> (GenBank accession no. OQ165236). Fungal tolerance/resistance was evaluated using different concentrations of CeCl<sub>3</sub> and NdCl<sub>3</sub>. <i>Umbelopsis isabellina</i> exhibited a higher degree of tolerance/resistance to cerium and neodymium than did the other dominant isolates (<i>Aspergillus niveoglaucus</i>, <i>Geomyces vinaceus</i> and <i>Penicillium simplicissimum</i>). The fungus began to be inhibited only after being exposed to 100 mg L<sup>−1</sup> of NdCl<sub>3</sub>. The toxic effects of Ce were not observed in fungus growth until it was subjected to 500 mg∙L<sup>−1</sup> of CeCl<sub>3</sub>. Moreover, only <i>U. isabellina</i> started to grow after extreme treatment with 1000 mg∙L<sup>−1</sup> of CeCl<sub>3</sub> one month after inoculation. This work indicates, for the first time, the potential of <i>Umbelopsis isabellina</i> to remove REEs from the loparite ore tailings, making it a suitable candidate for the development of bioleaching methods.https://www.mdpi.com/2309-608X/9/5/506<i>Umbelopsis isabellina</i>extremophile microfungiArcticloparite ore tailingsrare earth tolerance |
| spellingShingle | Oleg I. Shumilov Elena A. Kasatkina Irina Y. Kirtsideli Dmitry V. Makarov Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia Journal of Fungi <i>Umbelopsis isabellina</i> extremophile microfungi Arctic loparite ore tailings rare earth tolerance |
| title | Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia |
| title_full | Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia |
| title_fullStr | Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia |
| title_full_unstemmed | Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia |
| title_short | Tolerance of Rare-Earth Elements in Extremophile Fungus <i>Umbelopsis isabellina</i> from Polar Loparite Ore Tailings in Northwestern Russia |
| title_sort | tolerance of rare earth elements in extremophile fungus i umbelopsis isabellina i from polar loparite ore tailings in northwestern russia |
| topic | <i>Umbelopsis isabellina</i> extremophile microfungi Arctic loparite ore tailings rare earth tolerance |
| url | https://www.mdpi.com/2309-608X/9/5/506 |
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