Eco-evolutionary strategies for relieving carbon limitation under salt stress differ across microbial clades

文献类型： 外文期刊

第一作者： Dong, Yang

作者： Dong, Yang;Chen, Ruirui;Yu, Bingqian;Bao, Yuanyuan;Li, Xin;Feng, Youzhi;Dong, Yang;You, Xiangwei;Dong, Yang;Chen, Ruirui;Yu, Bingqian;Bao, Yuanyuan;Feng, Youzhi;Graham, Emily B.;Graham, Emily B.;Feng, Youzhi

作者机构：

期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.7； 五年影响因子：16.1 ）

ISSN：

年卷期： 2024 年 15 卷 1 期

页码：

收录情况： SCI

摘要： With the continuous expansion of saline soils under climate change, understanding the eco-evolutionary tradeoff between the microbial mitigation of carbon limitation and the maintenance of functional traits in saline soils represents a significant knowledge gap in predicting future soil health and ecological function. Through shotgun metagenomic sequencing of coastal soils along a salinity gradient, we show contrasting eco-evolutionary directions of soil bacteria and archaea that manifest in changes to genome size and the functional potential of the soil microbiome. In salt environments with high carbon requirements, bacteria exhibit reduced genome sizes associated with a depletion of metabolic genes, while archaea display larger genomes and enrichment of salt-resistance, metabolic, and carbon-acquisition genes. This suggests that bacteria conserve energy through genome streamlining when facing salt stress, while archaea invest in carbon-acquisition pathways to broaden their resource usage. These findings suggest divergent directions in eco-evolutionary adaptations to soil saline stress amongst microbial clades and serve as a foundation for understanding the response of soil microbiomes to escalating climate change. From metagenomic sequencing of coastal soils along a salinity gradient, this study shows contrasting eco-evolutionary strategies for relieving carbon limitation under salt stress in bacteria and archaea. The findings suggest that bacteria conserve energy through genome streamlining when facing salt stress, while archaea invest in carbon-acquisition pathways to broaden their resource usage.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序