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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Microbiome
2025
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40296156/ |
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| _version_ | 1868266209183531008 |
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| author | Fan, Yupeng Wang, Dongyu Yang, Joy X Ning, Daliang He, Zhili Zhang, Ping Rocha, Andrea M Xiao, Naijia Michael, Jonathan P Walker, Katie F Joyner, Dominique C Pan, Chongle Adams, Michael W W Fields, Matthew W Alm, Eric J Stahl, David A Hazen, Terry C Adams, Paul D Arkin, Adam P Zhou, Jizhong |
| author_facet | Fan, Yupeng Wang, Dongyu Yang, Joy X Ning, Daliang He, Zhili Zhang, Ping Rocha, Andrea M Xiao, Naijia Michael, Jonathan P Walker, Katie F Joyner, Dominique C Pan, Chongle Adams, Michael W W Fields, Matthew W Alm, Eric J Stahl, David A Hazen, Terry C Adams, Paul D Arkin, Adam P Zhou, Jizhong Fan, Yupeng Wang, Dongyu Yang, Joy X Ning, Daliang He, Zhili Zhang, Ping Rocha, Andrea M Xiao, Naijia Michael, Jonathan P Walker, Katie F Joyner, Dominique C Pan, Chongle Adams, Michael W W Fields, Matthew W Alm, Eric J Stahl, David A Hazen, Terry C Adams, Paul D Arkin, Adam P Zhou, Jizhong |
| collection | PubMed - marine biology |
| contents | Modest functional diversity decline and pronounced composition shifts of microbial communities in a mixed waste-contaminated aquifer. Fan, Yupeng Wang, Dongyu Yang, Joy X Ning, Daliang He, Zhili Zhang, Ping Rocha, Andrea M Xiao, Naijia Michael, Jonathan P Walker, Katie F Joyner, Dominique C Pan, Chongle Adams, Michael W W Fields, Matthew W Alm, Eric J Stahl, David A Hazen, Terry C Adams, Paul D Arkin, Adam P Zhou, Jizhong Groundwater Phylogeny Microbiota Tennessee Bacteria Nitrates Water Pollutants, Chemical Biodiversity RNA, Ribosomal, 16S Metals, Heavy Microbial taxonomic diversity declines with increased environmental stress. Yet, few studies have explored whether phylogenetic and functional diversities track taxonomic diversity along the stress gradient. Here, we investigated microbial communities within an aquifer in Oak Ridge, Tennessee, USA, which is characterized by a broad spectrum of stressors, including extremely high levels of nitrate, heavy metals like cadmium and chromium, radionuclides such as uranium, and extremely low pH ( Both taxonomic and phylogenetic α-diversities were reduced in the most impacted wells, while the decline in functional α-diversity was modest and statistically insignificant, indicating a more robust buffering capacity to environmental stress. Differences in functional gene composition (i.e., functional β-diversity) were pronounced in highly contaminated wells, while convergent functional gene composition was observed in uncontaminated wells. The relative abundances of most carbon degradation genes were decreased in contaminated wells, but genes associated with denitrification, adenylylsulfate reduction, and sulfite reduction were increased. Compared to taxonomic and phylogenetic compositions, environmental variables played a more significant role in shaping functional gene composition, suggesting that niche selection could be more closely related to microbial functionality than taxonomy. Overall, we demonstrated that despite a reduced taxonomic α-diversity, microbial communities under stress maintained functionality underpinned by environmental selection. Video Abstract. |
| format | Artículo científico |
| id | pubmed_40296156 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Microbiome |
| record_format | pubmed |
| spellingShingle | Modest functional diversity decline and pronounced composition shifts of microbial communities in a mixed waste-contaminated aquifer. Fan, Yupeng Wang, Dongyu Yang, Joy X Ning, Daliang He, Zhili Zhang, Ping Rocha, Andrea M Xiao, Naijia Michael, Jonathan P Walker, Katie F Joyner, Dominique C Pan, Chongle Adams, Michael W W Fields, Matthew W Alm, Eric J Stahl, David A Hazen, Terry C Adams, Paul D Arkin, Adam P Zhou, Jizhong Groundwater Phylogeny Microbiota Tennessee Bacteria Nitrates Water Pollutants, Chemical Biodiversity RNA, Ribosomal, 16S Metals, Heavy Modest functional diversity decline and pronounced composition shifts of microbial communities in a mixed waste-contaminated aquifer. Fan, Yupeng Wang, Dongyu Yang, Joy X Ning, Daliang He, Zhili Zhang, Ping Rocha, Andrea M Xiao, Naijia Michael, Jonathan P Walker, Katie F Joyner, Dominique C Pan, Chongle Adams, Michael W W Fields, Matthew W Alm, Eric J Stahl, David A Hazen, Terry C Adams, Paul D Arkin, Adam P Zhou, Jizhong Groundwater Phylogeny Microbiota Tennessee Bacteria Nitrates Water Pollutants, Chemical Biodiversity RNA, Ribosomal, 16S Metals, Heavy Microbial taxonomic diversity declines with increased environmental stress. Yet, few studies have explored whether phylogenetic and functional diversities track taxonomic diversity along the stress gradient. Here, we investigated microbial communities within an aquifer in Oak Ridge, Tennessee, USA, which is characterized by a broad spectrum of stressors, including extremely high levels of nitrate, heavy metals like cadmium and chromium, radionuclides such as uranium, and extremely low pH ( Both taxonomic and phylogenetic α-diversities were reduced in the most impacted wells, while the decline in functional α-diversity was modest and statistically insignificant, indicating a more robust buffering capacity to environmental stress. Differences in functional gene composition (i.e., functional β-diversity) were pronounced in highly contaminated wells, while convergent functional gene composition was observed in uncontaminated wells. The relative abundances of most carbon degradation genes were decreased in contaminated wells, but genes associated with denitrification, adenylylsulfate reduction, and sulfite reduction were increased. Compared to taxonomic and phylogenetic compositions, environmental variables played a more significant role in shaping functional gene composition, suggesting that niche selection could be more closely related to microbial functionality than taxonomy. Overall, we demonstrated that despite a reduced taxonomic α-diversity, microbial communities under stress maintained functionality underpinned by environmental selection. Video Abstract. |
| title | Modest functional diversity decline and pronounced composition shifts of microbial communities in a mixed waste-contaminated aquifer. |
| topic | Groundwater Phylogeny Microbiota Tennessee Bacteria Nitrates Water Pollutants, Chemical Biodiversity RNA, Ribosomal, 16S Metals, Heavy |
| url | https://pubmed.ncbi.nlm.nih.gov/40296156/ |