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用不连续密度梯度用胶囊分离细菌
JoVE Journal
Genetics
This content is Free Access.
JoVE Journal
Genetics
Separating Bacteria by Capsule Amount Using a Discontinuous Density Gradient
Please note that all translations are automatically generated.
Click here for the English version.
用不连续密度梯度用胶囊分离细菌
DOI:
10.3791/58679-v
•
05:52 min
•
January 07, 2019
•
Theresa Feltwell
,
Matthew J. Dorman
,
David A. Goulding
,
Julian Parkhill
,
Francesca L. Short
2
1
Wellcome Sanger Institute, Wellcome Genome Campus
,
2
Department of Medicine
,
University of Cambridge
Chapters
00:04
Title
00:48
Preparation of Bacterial Strains of Mutant Libraries
01:40
Preparation of Gradient Dilutions and Mini-gradient Test
02:39
Preparation of Discontinuous Density Gradients
03:39
Adding Prepared Cells to Gradients and Separation by Centrifuge
04:30
Results: Density Gradient Centrifugation Used to Separate Bacterial Strains Based on Capsule Production
05:10
Conclusion
Summary
Automatic Translation
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Automatic Translation
我们展示了使用不连续密度梯度来根据胶囊生产分离细菌种群。该方法用于比较培养物间的胶囊数量, 分离具有特定胶囊表型的突变体, 或鉴定胶囊调节剂。这里描述的是该分析的优化和运行。
Tags
– Bacteria Separation- Capsule Amount- Discontinuous Density Gradient- Klebsiella- Capsule Regulation- Visual Demonstration- Density Gradient Medium- Centrifugation- Cell Suspension- Gradient Dilutions- Gradient Interface
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