在伊诺努洞穴的考古土壤中解读过去的微生物生命和抗生素耐药性
Sukran Ozturk1, F Gülden Ekmen2, Hamza Ekmen2
1Zonguldak Bülent Ecevit University Faculty of Pharmacy Pharmaceutical Microbiology, Zonguldak, Türkiye.
PloS one
|July 31, 2025
概括
古代土壤样本显示,抗生素耐药性基因已经持续了数千年,受人类活动和环境因素的影响. 这项研究强调了对微生物群落的长期影响以及在历史时期耐药性的持久存在.
科学领域:
- 考古学的考古学
- 微生物学 微生物学
- 环境科学 环境科学
背景情况:
- 古老的土壤微生物群落为人类历史影响提供了线索.
- 抗生素耐药性基因 (ARG) 有着悠久的进化历史.
- 了解过去的微生物生态,为当今的挑战提供了信息.
研究的目的:
- 为了研究土壤中的古老细菌群落和ARG从Inönü洞穴,土耳其.
- 为了将人类历史活动与微生物社区结构和ARG存在相关联.
- 在考古学背景下探索ARG的长期持久性.
主要方法:
- 16S rRNA基因的高通量测序用于微生物社区的表征.
- 用于识别抗生素耐药性基因的元基因学研究.
- 分析了来自四个不同的文化层面的土壤样本 (石到早期铁器时代).
主要成果:
- 确定了多种不同的细菌类,包括Acidobacteriota,Actinobacteriota和Proteobacteria.
- 检测特定的ARG:tetA (石),intl1 (早期青铜时代) 和OXA58 (青铜时代晚期).
- 证据表明ARG在历史时期的持续存在,与人类活动和环境变量有关.
结论:
- 人类活动对土壤微生物群落和ARG患病率产生了深刻而持久的影响.
- 古老的ARG表现出性和适应性,为微生物进化提供了洞察力.
- 跨学科的方法对于理解古代微生物生态和耐药机制至关重要.
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