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土壤微生物丰富不同稀土元素丰富稀土周围的土壤尾矿池

Xin Xu^1,2,3, Caiqi Yu¹, Weiqi Du¹

¹School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China.

Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine

|November 27, 2025

概括

稀土元素 (REE) 的污染减少了土壤细菌的多样性,并改变了微生物社区的结构. 特定的细菌系被确定为不同REE积累水平的生物标志物,表明REE压力影响土壤生态系统.

科学领域:

环境科学环境科学
微生物学微生物学
地质化学地质化学

背景情况:

土壤微生物对环境变化敏感,但不同稀土元素 (REE) 污染水平对微生物群落及其相互作用的影响尚不清楚.
缺乏在土壤生态系统中不同程度的稀土丰富的特定生物标志物的研究.

研究的目的:

研究不同稀土元素 (REE) 度对土壤微生物生物多样性,社区结构和功能动态的影响.
确定与土壤中不同程度的REE积累相关的潜在微生物生物标志物.

主要方法:

将土壤样本分类为不同的稀土元素 (REE) 积累层.
利用Illumina高通量测序来分析细菌社区的组成和多样性.
使用线性差异分析效果大小 (LEfSe) 和Tax4fun用于生物标志物识别和功能预测.

主要成果:

稀土元素 (REE) 积累减少了总体的细菌多样性,但对细菌群体多样性的影响最小.
蛋白质细菌,动态细菌和流体在REE尾矿池附近占主导地位.
特定的属 (Halomonas,Aliifodinibius,Truepera) 和Sphingomonas,norank_Subgroup6,norank_Actinobacteria,RB41被确定为不同REE度水平的生物标志物.
REE压力抑制了细菌群体的代谢能力,土壤水分和REE度被确定为关键的环境驱动因素.

结论:

稀土元素 (REE) 的积累显著改变了土壤细菌群落的多样性,分类结构和生态功能.
不同的微生物生物标志物可以表明不同程度的稀土丰富,提供对稀土采矿对土壤微生物生态系统的影响的见解.

关键词:

这是Illumina MiSeq测序.稀土元素稀土元素是一种稀土元素.土壤细菌社区的土壤细菌社区税收4功能功能预测

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