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Environ Microbiol. 2000 Dec;2(6):654-65.

Bacterial chromosomal painting for in situ monitoring of cultured marine bacteria.

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1
Oregon State University, Corvallis 97331, USA.

Abstract

We previously described a new method, bacterial chromosomal painting (BCP), for the in situ identification of bacterial cells. Here, we describe the application of this technique to study the ecology and physiology of cultured marine pelagic bacteria from the western Sargasso Sea (WSS). A total of 86 bacteria were isolated from seawater collected from near the surface, at a depth of 250 m and from nutrient-amended seawater incubations. The 10 bacterial isolates that were best represented in environmental genomic DNA from the WSS were selected using reverse genome probing. BCP hybridization cell counts were used to determine the depth-specific distribution of one of the alpha proteobacterial isolates, B5-6, in the WSS during two thermal stratification regimes: stratified and partially mixed. The maximum cell count measured for B5-6 at the summer deep chlorophyll maximum was approximately 4% of the total cell count. This study is the first application of BCP to natural environments.

[Indexed for MEDLINE]

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