In Situ Analysis of Sulfate-Reducing Bacteria Related to Desulfocapsa thiozymogenes in the Chemocline of Meromictic Lake Cadagno (Switzerland)
- 1 February 2000
- journal article
- research article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 66 (2) , 820-824
- https://doi.org/10.1128/aem.66.2.820-824.2000
Abstract
Comparative sequence analysis of a 16S rRNA gene clone library from the chemocline of the meromictic Lake Cadagno (Switzerland) retrieved two clusters of sequences resembling sulfate-reducing bacteria within the family Desulfovibrionaceae . In situ hybridization showed that, similar to sulfate-reducing bacteria of the family Desulfobacteriaceae , bacteria of one cluster with similarity values to the closest cultured relatives of between 92.6 and 93.1% resembled free cells or cells loosely attached to other cells or debris. Bacteria of the second cluster closely related to Desulfocapsa thiozymogenes DSM7269 with similarity values between 97.9 and 98.4% were generally associated with aggregates of different small-celled phototrophic sulfur bacteria, suggesting a potential interaction between the two groups of bacteria.Keywords
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