Stratification-driven divergence between taxonomic and functional diversity in a deep lake microbiome.
Fuente:
PubMed
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
FEMS microbiology ecology
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1868266108321005568 |
|---|---|
| author | Ding, Jianing Yu, Chunyan Gao, Jiawei Luo, Wenlei Yang, Yuanyuan Li, Huabing Wu, Qinglong L |
| author_facet | Ding, Jianing Yu, Chunyan Gao, Jiawei Luo, Wenlei Yang, Yuanyuan Li, Huabing Wu, Qinglong L Ding, Jianing Yu, Chunyan Gao, Jiawei Luo, Wenlei Yang, Yuanyuan Li, Huabing Wu, Qinglong L |
| collection | PubMed - marine biology |
| contents | Stratification-driven divergence between taxonomic and functional diversity in a deep lake microbiome. Ding, Jianing Yu, Chunyan Gao, Jiawei Luo, Wenlei Yang, Yuanyuan Li, Huabing Wu, Qinglong L Lakes Microbiota RNA, Ribosomal, 16S Bacteria China Archaea Phylogeny Biodiversity Thermal stratification drivers of microbial community organization and functional potential in deep lakes, yet comparative analyses of epilimnetic and hypolimnetic microbiome dynamics remain limited. In this study, we combined 16S rRNA gene sequencing with functional microarray (GeoChip 5.0) to investigate stratification-induced shifts in microbial community composition and functional structure in Lake Fuxian, a deep monomictic plateau lake in Yunnan Province, Southwest China. Our analyses revealed a partial decoupling between taxonomic and functional diversity across water layers: the oxygen-depleted hypolimnion harbored higher bacterial taxonomic richness and distinct taxa (Nitrospirae, Parcubacteria, and Thaumarchaeota), whereas the epilimnion exhibited greater functional gene richness with lower beta diversity, indicating enhanced metabolic flexibility. Molecular ecological network analysis uncovered contrasting interaction patterns, with hypolimnetic communities exhibiting greater complexity and modularity. Notably, the Chloroflexi-associated amyA gene emerged as a module hub in hypolimnetic functional molecular ecological networks while distinct connector taxa characterized both epilimnetic and hypolimnetic species molecular ecological networks. Multivariate analyses identified dissolved oxygen and nutrient availability as key environmental drivers of vertical microbial stratification. These findings elucidate microbial adaptation to stratified conditions and underscore the distinct roles of epilimnetic and hypolimnetic communities in biogeochemical cycling in deep lakes experiencing climate-mediated thermal regime shifts. |
| format | Artículo científico |
| id | pubmed_41439545 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | FEMS microbiology ecology |
| record_format | pubmed |
| spellingShingle | Stratification-driven divergence between taxonomic and functional diversity in a deep lake microbiome. Ding, Jianing Yu, Chunyan Gao, Jiawei Luo, Wenlei Yang, Yuanyuan Li, Huabing Wu, Qinglong L Lakes Microbiota RNA, Ribosomal, 16S Bacteria China Archaea Phylogeny Biodiversity Stratification-driven divergence between taxonomic and functional diversity in a deep lake microbiome. Ding, Jianing Yu, Chunyan Gao, Jiawei Luo, Wenlei Yang, Yuanyuan Li, Huabing Wu, Qinglong L Lakes Microbiota RNA, Ribosomal, 16S Bacteria China Archaea Phylogeny Biodiversity Thermal stratification drivers of microbial community organization and functional potential in deep lakes, yet comparative analyses of epilimnetic and hypolimnetic microbiome dynamics remain limited. In this study, we combined 16S rRNA gene sequencing with functional microarray (GeoChip 5.0) to investigate stratification-induced shifts in microbial community composition and functional structure in Lake Fuxian, a deep monomictic plateau lake in Yunnan Province, Southwest China. Our analyses revealed a partial decoupling between taxonomic and functional diversity across water layers: the oxygen-depleted hypolimnion harbored higher bacterial taxonomic richness and distinct taxa (Nitrospirae, Parcubacteria, and Thaumarchaeota), whereas the epilimnion exhibited greater functional gene richness with lower beta diversity, indicating enhanced metabolic flexibility. Molecular ecological network analysis uncovered contrasting interaction patterns, with hypolimnetic communities exhibiting greater complexity and modularity. Notably, the Chloroflexi-associated amyA gene emerged as a module hub in hypolimnetic functional molecular ecological networks while distinct connector taxa characterized both epilimnetic and hypolimnetic species molecular ecological networks. Multivariate analyses identified dissolved oxygen and nutrient availability as key environmental drivers of vertical microbial stratification. These findings elucidate microbial adaptation to stratified conditions and underscore the distinct roles of epilimnetic and hypolimnetic communities in biogeochemical cycling in deep lakes experiencing climate-mediated thermal regime shifts. |
| title | Stratification-driven divergence between taxonomic and functional diversity in a deep lake microbiome. |
| topic | Lakes Microbiota RNA, Ribosomal, 16S Bacteria China Archaea Phylogeny Biodiversity |
| url | https://pubmed.ncbi.nlm.nih.gov/41439545/ |