Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms
Mining activities, even in arctic regions, create waste materials releasing metals and metalloids, which have an impact on the microorganisms inhabiting their surroundings. Some species can persist in these areas through tolerance to meta(loid)s via, e.g., metabolic transformations. Due to the inter...
Published in: | Frontiers in Microbiology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2024
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmicb.2024.1386120 https://doaj.org/article/4a141bb3554a4d0abcca19798740748a |
id |
ftdoajarticles:oai:doaj.org/article:4a141bb3554a4d0abcca19798740748a |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:4a141bb3554a4d0abcca19798740748a 2024-09-15T18:38:07+00:00 Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms Francisca Prieto-Fernández Stefan Lambert Katharina Kujala 2024-05-01T00:00:00Z https://doi.org/10.3389/fmicb.2024.1386120 https://doaj.org/article/4a141bb3554a4d0abcca19798740748a EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmicb.2024.1386120/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2024.1386120 https://doaj.org/article/4a141bb3554a4d0abcca19798740748a Frontiers in Microbiology, Vol 15 (2024) metal metalloid cold copper antimony enrichment Microbiology QR1-502 article 2024 ftdoajarticles https://doi.org/10.3389/fmicb.2024.1386120 2024-08-05T17:49:19Z Mining activities, even in arctic regions, create waste materials releasing metals and metalloids, which have an impact on the microorganisms inhabiting their surroundings. Some species can persist in these areas through tolerance to meta(loid)s via, e.g., metabolic transformations. Due to the interaction between microorganisms and meta(loid)s, interest in the investigation of microbial communities and their possible applications (like bioremediation or biomining) has increased. The main goal of the present study was to identify, isolate, and characterize microorganisms, from subarctic mine sites, tolerant to the metalloid antimony (Sb) and the metal copper (Cu). During both summer and winter, samples were collected from Finnish mine sites (site A and B, tailings, and site C, a water-treatment peatland) and environmental parameters were assessed. Microorganisms tolerant to Sb and Cu were successfully enriched under low temperatures (4°C), creating conditions that promoted the growth of aerobic and fermenting metal(loid) tolerating or anaerobic metal(loid) respiring organism. Microbial communities from the environment and Sb/Cu-enriched microorganisms were studied via 16S rRNA amplicon sequencing. Site C had the highest number of taxa and for all sites, an expected loss of biodiversity occurred when enriching the samples, with genera like Prauserella, Pseudomonas or Clostridium increasing their relative abundances and others like Corynebacterium or Kocuria reducing in relative abundance. From enrichments, 65 putative Sb- and Cu-metabolizing microorganisms were isolated, showing growth at 0.1 mM to 10 mM concentrations and 0°C to 40°C temperatures. 16S rRNA gene sequencing of the isolates indicated that most of the putative anaerobically Sb-respiring tolerators were related to the genus Clostridium. This study represents the first isolation, to our knowledge, of putative Sb-metabolizing cold-tolerant microorganisms and contributes to the understanding of metal (loid)-tolerant microbial communities in Arctic mine ... Article in Journal/Newspaper Subarctic Directory of Open Access Journals: DOAJ Articles Frontiers in Microbiology 15 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
metal metalloid cold copper antimony enrichment Microbiology QR1-502 |
spellingShingle |
metal metalloid cold copper antimony enrichment Microbiology QR1-502 Francisca Prieto-Fernández Stefan Lambert Katharina Kujala Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
topic_facet |
metal metalloid cold copper antimony enrichment Microbiology QR1-502 |
description |
Mining activities, even in arctic regions, create waste materials releasing metals and metalloids, which have an impact on the microorganisms inhabiting their surroundings. Some species can persist in these areas through tolerance to meta(loid)s via, e.g., metabolic transformations. Due to the interaction between microorganisms and meta(loid)s, interest in the investigation of microbial communities and their possible applications (like bioremediation or biomining) has increased. The main goal of the present study was to identify, isolate, and characterize microorganisms, from subarctic mine sites, tolerant to the metalloid antimony (Sb) and the metal copper (Cu). During both summer and winter, samples were collected from Finnish mine sites (site A and B, tailings, and site C, a water-treatment peatland) and environmental parameters were assessed. Microorganisms tolerant to Sb and Cu were successfully enriched under low temperatures (4°C), creating conditions that promoted the growth of aerobic and fermenting metal(loid) tolerating or anaerobic metal(loid) respiring organism. Microbial communities from the environment and Sb/Cu-enriched microorganisms were studied via 16S rRNA amplicon sequencing. Site C had the highest number of taxa and for all sites, an expected loss of biodiversity occurred when enriching the samples, with genera like Prauserella, Pseudomonas or Clostridium increasing their relative abundances and others like Corynebacterium or Kocuria reducing in relative abundance. From enrichments, 65 putative Sb- and Cu-metabolizing microorganisms were isolated, showing growth at 0.1 mM to 10 mM concentrations and 0°C to 40°C temperatures. 16S rRNA gene sequencing of the isolates indicated that most of the putative anaerobically Sb-respiring tolerators were related to the genus Clostridium. This study represents the first isolation, to our knowledge, of putative Sb-metabolizing cold-tolerant microorganisms and contributes to the understanding of metal (loid)-tolerant microbial communities in Arctic mine ... |
format |
Article in Journal/Newspaper |
author |
Francisca Prieto-Fernández Stefan Lambert Katharina Kujala |
author_facet |
Francisca Prieto-Fernández Stefan Lambert Katharina Kujala |
author_sort |
Francisca Prieto-Fernández |
title |
Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
title_short |
Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
title_full |
Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
title_fullStr |
Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
title_full_unstemmed |
Assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
title_sort |
assessment of microbial communities from cold mine environments and subsequent enrichment, isolation and characterization of putative antimony- or copper-metabolizing microorganisms |
publisher |
Frontiers Media S.A. |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmicb.2024.1386120 https://doaj.org/article/4a141bb3554a4d0abcca19798740748a |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Frontiers in Microbiology, Vol 15 (2024) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmicb.2024.1386120/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2024.1386120 https://doaj.org/article/4a141bb3554a4d0abcca19798740748a |
op_doi |
https://doi.org/10.3389/fmicb.2024.1386120 |
container_title |
Frontiers in Microbiology |
container_volume |
15 |
_version_ |
1810482442522329088 |