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Purpose:
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Standards help to verify lab-workflows and ensure consistency of produced and processed data. In the present study, we introduce a suitable standard for the analysis of microbial communities by flow cytometry. Flow cytometry has become an essential technology for the quantitative study of natural or artificially-constructed microbial communities in ecosystems, biotechnology, and health research. De Vrieze et al. highlighted the need for phenotypic microbial community data in the field of biotechnology for the upcoming automation process in Industry 4.0. In addition, research only begins to uncover the ecology of microbial communities in managed and natural systems. Therefore, the technology is especially useful for monitoring dynamics and evolution of communities; and bioinformatics tools are available to identify ecological concepts of community structuring processes and to reveal stability properties4 as well as interactions between subpopulations of microorganisms and their environment. Such applications require absolute comparability of the cytometric data over days up to years. A standard mock community has been developed that validates accurate cell treatment, tests high-resolution cytometer alignment, and ensures proper use of bioinformatics pipelines. |
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Quality control:
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Characterizing microbiome dynamics - Flow cytometry based workflows from pure cultures to natural communities |
Reference beads blue 1 µm BB Fluoresbrite Microspheres (17458; Polysciences)
Reference beads blue 0.5 µm BB Fluoresbrite Microspheres (18339; Polysciences)
Reference beads yellow-green 1 µm FluoSpheres (F-13081, Lot 03B2-1; ThermoFischer Scientific)
Reference beads yellow-green 0.5 µm FluoSpheres (F-8813, Lot. 69B3-1; ThermoFischer Scientific)
Laser alignment beads blue 1 µm FluoSpheres (F-8815; ThermoFisher Scientific)
Laser alignment beads yellow-green 2 µm FluoSpheres (F8827; ThermoFisher Scientific)
Laser alignment BD FACSuiteTM CS&T research beads (650621; Becton, Dickinson and Company)
Laser alignment BD CS&T RUO beads (661414; Becton, Dickinson and Company)
Daily laser alignment.
Use of mCMC as biological standards.
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