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在粉红色的漂亮吗? 在历史建筑上分析粉红色生物膜的补充策略
Johannes Tichy1, Monika Waldherr2, Martin Ortbauer3
1Institute for Natural Sciences and Technology in the Art, Academy of Fine Arts Vienna, Schillerplatz 3, A-1010 Vienna, Austria.
The Science of the total environment
|September 2, 2023
概括
盐的建筑物上的微生物群落是由盐度和化学成分组成的. 了解这些因素是开发有效治疗历史建筑上粉红色生物膜的关键.
科学领域:
- 建筑保护科学 建筑保护科学
- 微生物学 微生物学
- 地质化学 地质化学
背景情况:
- 盐腐蚀通过盐结晶周期破坏历史建筑.
- 由含有胡卜素的耐药微生物引起的粉红色生物膜是常见的生物退化问题.
- 对于保护而言,研究盐气候结构上的微生物群落至关重要.
研究的目的:
- 为了分析基板化学和微生物群落在盐的奥地利建筑物上的关系.
- 识别负责粉红色生物膜的微生物,并了解它们的盐耐受性策略.
- 为选择合适的盐水淡化处理方法提供信息,用于盐的浮花和生物膜.
主要方法:
- 离子色谱和X射线衍射用于基质盐分析.
- 全长16S rRNA基因测序使用纳米孔技术进行微生物组概况.
- 拉曼光谱法用于识别生物膜中的颜料.
主要成果:
- 微生物组的组成受到盐度和特定离子存在 (例如K+) 的影响.
- 不同的微生物物种 (如Aliifodinibius,Salinisphaera,Halomonas,Rubrobacter,Haloechinothrix) 在盐类型和度的基础上占主导地位.
- 胡卜素始终被确定为在两个调查地点负责粉红色生物膜的颜料.
结论:
- 盐的化学成分,而不仅仅是度,决定了盐气候环境中的微生物社区结构.
- 微生物的盐耐受机制各不相同,包括K+吸收和相容的溶液合成.
- 了解这些微生物与盐的相互作用对于有针对性的保护策略至关重要.
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