Rapid, automated separation of specific bacteria from lake water and sewage by flow cytometry and cell sorting

Porter, J. and Edwards, C. and Morgan, J. A.W. and Pickup, R. W. (1993) Rapid, automated separation of specific bacteria from lake water and sewage by flow cytometry and cell sorting. Applied and Environmental Microbiology, 59 (10). pp. 3327-3333. ISSN 0099-2240

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Abstract

The use of fluorescence-activated flow cytometric cell sorting to obtain highly enriched populations of viable target bacteria was investigated. Preliminary studies employed mixtures of Staphylococcus aureus and Escherichia coli. Cells of S. aureus, when mixed in different proportions with E. coli, could be selectively recovered at a purity in excess of 90%. This was possible even when S. aureus composed only approximately 0.4% of the total cells. Cell sorting was also tested for the ability to recover E. coli from natural lake water populations and sewage. The environmental samples were challenged with fluorescently labelled antibodies specific for E. coli prior to cell sorting. Final sample purities of greater than 70% were routinely achieved, as determined by CFU. Populations of E. coli released into environmental samples were recovered at greater than 90% purity. The use of flow cytometry and cell sorting to detect and recover viable target bacteria present at levels of less than 1% within an indigenous microflora was also demonstrated.

Item Type:
Journal Article
Journal or Publication Title:
Applied and Environmental Microbiology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1300/1305
Subjects:
?? biotechnologyfood scienceapplied microbiology and biotechnologyecology ??
ID Code:
208894
Deposited By:
Deposited On:
01 Nov 2023 14:40
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 00:28