微量营养素的可用性改变了Candida albicans的生长和farnesol积累:对使用RPMI-164040的研究的影响
Cory H T Boone1, Daniel J Gutzmann1, Jaxon J Kramer1
1School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, USA.
Microbiology spectrum
|September 24, 2024
概括
在生长介质中的微金属杂质显著影响Candida albicans的生长和farnesol生产. 补充和等特定矿物质可以优化真菌发育和代谢物分泌.
科学领域:
- 微生物学 微生物学
- 生物化学 生物化学
- 分析化学 分析化学
背景情况:
- * *Candida albicans* 是一个重要的人类机会性病原体.
- * RPMI-1640是广泛用于*C. albicans*和抗真菌敏感性测试 (AFST) 的生长媒介.
- * 商业MOPS缓冲器,即使是高纯度的缓冲器,也可能含有微量金属污染物,影响实验结果.
研究的目的:
- * 调查RPMI-1640生长介质中的微金属杂质对*C. albicans*生长和Farnesol生产的影响.
- * 确定最佳的矿物质补充剂,以促进C. albicans的生长和代谢物分泌.
- *建立基于RPMI的可靠媒介,以获得一致的实验结果.
主要方法:
- *使用RPMI-1640与不同的MOPS缓冲器对*C. albicans*生长和Farnesol产量的比较分析.
- * 感应合等离子体质谱 (ICP-MS) 用于量化微量金属含量 (Mn(II), Zn(II), Fe(II), Cu(II)).
- *系统地补充RPMI-1640与微量金属的各种组合,以评估其影响.
主要成果:
- * 切换MOPS缓冲器 (Acros与Sigma) 改变了*C. albicans*的生长 (减少了两倍) 和farnesol产量 (增加了三到五倍).
- * Acros MOPS 含有 Mn(II),而 Sigma MOPS 则没有; Mn(II) 补充恢复了最佳生长.
- *Zn (II) 丰度增加了法内索尔和芳香醇的产量,当Fe (II) 也丰富时,进一步增加.
- *抗真菌敏感性测试没有显示有或没有矿物质补充剂的显著差异.
结论:
- *通常使用的MOPS缓冲器中的微量金属杂质可以显著混*C. albicans*研究.
- * (Mn(II)) 对于*C. albicans*细胞生长至关重要.
- * (Zn(II)) 对于生产法内索和芳香醇至关重要.
- *为获得一致的结果,建议使用修改后的RPMI介质,补充Cu (II),Zn (II),Mn (II) 和Fe (II).
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