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历史矿山废弃物含有多样化的微生物群落,反映了废弃物类型和地质化学

Mackenzie B Best¹, Zohreh Kazemi Motlagh², Virginia T McLemore³

¹Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, New Mexico, USA.

Applied and environmental microbiology

|July 24, 2025

概括

在新墨西哥州的历史矿山废物中,存在着独特的微生物群落. 这些细菌和古生物,与典型的生物溶解生物不同,是关键的关键矿物回收和生物修复.

科学领域:

环境微生物学环境微生物学
地质微生物学的生物.
生物地质化学生物地质化学

背景情况:

历史性的采矿活动产生了巨大的废石和尾矿沉积物.
这些矿床可能含有大量重要的矿产资源,由于过去的金学限制,这些资源往往被忽视.
微生物群落在这些沉积物中进化,影响元素循环和矿物质的可用性.

研究的目的:

在新墨西哥州不活跃的矿山废物沉积物中描述微生物群落.
为了比较微生物的组成和活动与废岩地质化学.
评估这些独特的微生物群落在生物开采和生物修复方面的潜力.

主要方法:

微生物细胞计数.
核糖体RNA (rRNA) 基因和转录序列的测序.
整个岩石的地质化学分析.
五个不活跃的矿场微生物群落的比较.

主要成果:

废石和尾矿主要由氧化和碳的细菌和古生物占据主导地位,而不是典型的耐酸性矿山微生物.
通过rRNA转录识别的活跃微生物种群在很大程度上反映了主导的rRNA基因序列.
微生物社区结构与地球化学相关,包括硫,铁,铜,和稀土元素.
许多已识别的微生物缺乏培养代表,这表明生物地化学循环中的新型参与者.

结论:

历史矿山废弃物中的微生物群落与活跃生物洗操作中的微生物群落有所区别.
这些独特,活跃的微生物群落对于矿山矿床的长期生物地化学循环至关重要.
新型微生物为生物技术应用提供了机会,包括关键矿物回收和生物修复.

关键词:

16S rRNA 的基因是 16S 的基因.16S rRNA转录的转录重要矿物质是重要的矿物质.遗留的矿山废弃物矿山废弃物的遗产微生物生态学微生物生态学矿山的尾矿是矿山的尾矿.硫是一种硫.

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