用于微观检查固定金黄色葡萄球菌和沙门氏菌生物膜的方法
A E Grigor'eva1, A V Tupitsyna2, A V Bardasheva2
1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia. feabelit@mail.ru.
Bulletin of experimental biology and medicine
|August 3, 2024
概括
红色固定最好保存细菌生物膜矩阵用于显微镜. 这种方法增强了Staphylococcus aureus和Salmonella enterica超结构的可视化效果,不同于甲状腺或伊托-卡诺夫斯基方法.
科学领域:
- 微生物学 微生物学
- 显微镜技术的使用方法
背景情况:
- 细菌生物膜是复杂的结构,对微生物的生存和病变产生至关重要.
- 对生物膜矩阵的准确可视化对于理解微生物社区动态至关重要.
- 现有的固定方法在显微镜准备过程中经常无法保持生物膜矩阵的完整性.
研究的目的:
- 为了比较用于光和电子显微镜的细菌生物膜保存的不同固定方法.
- 确定一种最佳的固定技术,以可视化生物膜矩阵和细菌细胞的超结构.
主要方法:
- 对准甲固定,伊托-卡诺夫斯基固定和红与化物结合的比较.
- 光和电子显微镜被用来分析保存的样本.
- 超结构分析金黄色葡萄球菌和沙门氏菌的细胞及其周围的基质.
主要成果:
- 在脱水过程中,甲的固定损害了生物膜的完整性.
- 伊托 - 卡尔诺夫斯基固定保存了细胞形态,但不是矩阵.
- 红与化物结合,有效地保存并可视化了生物膜矩阵.
- 细菌细胞和生物膜矩阵的详细超结构描述得到了实现.
结论:
- 红与化物相结合是保存细菌生物膜矩阵的最佳方法,用于显微镜.
- 这种技术可以对细菌细胞及其基质进行详细的超结构分析.
- 改进的固定方法对于推动生物膜研究至关重要.
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