Literature DB >> 9572943

Comparison of blue nucleic acid dyes for flow cytometric enumeration of bacteria in aquatic systems.

P Lebaron1, N Parthuisot, P Catala.   

Abstract

Seven blue nucleic acid dyes from Molecular Probes Inc. (SYTO-9, SYTO-11, SYTO-13, SYTO-16, SYTO-BC, SYBR-I and SYBR-II) were compared with the DAPI (4',6-diamidino-2-phenylindole) method for flow cytometric enumeration of live and fixed bacteria in aquatic systems. It was shown that SYBR-II and SYTO-9 are the most appropriate dyes for bacterial enumeration in nonsaline waters and can be applied to both live and dead bacteria. The fluorescence signal/noise ratio was improved when SYTO-9 was used to stain living bacteria in nonsaline waters. Inversely, SYBR-II is more appropriate than SYTO dyes for bacterial enumeration of unfixed and fixed seawater samples.

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Year:  1998        PMID: 9572943      PMCID: PMC106222          DOI: 10.1128/AEM.64.5.1725-1730.1998

Source DB:  PubMed          Journal:  Appl Environ Microbiol        ISSN: 0099-2240            Impact factor:   4.792


  13 in total

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  49 in total

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