在全球范围内,污染梯度塑造了岩石遗产细菌群落的结构和功能
Haiqing Yang1, Francesca Cappitelli2, Xingyue Li1
1School of Civil Engineering, Chongqing University, 400045, China.
The Science of the total environment
|March 11, 2025
概括
颗粒物污染对遗产遗址的微生物产生重大影响,增加了细菌丰富性,但降低了网络稳定性. 这种污染会影响微生物的代谢功能,尤其是脱.
科学领域:
- 环境微生物学 环境微生物学
- 微生物生态学 微生物生态学
- 文化遗产科学 文化遗产科学
背景情况:
- 以前的研究集中在气候对遗产微生物的影响上,忽视了污染的生态作用.
- 缺乏对污染对遗产遗产中的微生物代谢功能的影响的详细了解.
研究的目的:
- 分析全球遗产遗址在不同污染水平下的微生物多样性和功能.
- 研究颗粒物对遗产微生物群落及其代谢活动的影响.
主要方法:
- 来自17个世界文化遗产遗址的6000多个细菌操作分类单位 (OTU) 的分析.
- 评估微生物多样性指数和与污染水平相关的潜在功能.
- 检查特定的基因表达,包括脱基因 (nosZ, nirS).
主要成果:
- 颗粒物污染 (例如,PM2.5) 对遗产微生物群落的影响与温度和降水相似.
- 高颗粒物度增强了细菌的丰富性,并引入了独特的物种,如蓝色细菌,动态细菌和蛋白质细菌.
- 升高的颗粒物减少了微生物网络的复杂性和稳定性,抑制了脱路径.
结论:
- 污染的环境对文化遗产中的微生物群落的多样性和功能有着显著的长期影响.
- 这些发现为可持续的保护战略提供了理论基础,以解决污染对遗产遗址的影响.
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