In situ analysis of sulfate-reducing bacteria related to Desulfocapsa thiozymogenes in the chemocline of meromictic lake Cadagno (Switzerland)

Article Abstract:

Results show that there is not much complexity in the populations of sulfate-reducing bacteria which exhibit similar hybridization values suggesting an interaction between the two groups of bacteria.

United States, Analysis, Physiological aspects, Influence, Ribosomal RNA, Salinity

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In situ analysis of phototrophic sulfur bacteria in the chemocline of meromictic Lake Cadagno (Switzerland)

Article Abstract:

The phototrophic sulfur bacteria populations found in the chemocline of Lake Cadagno in Switzerland has been studied by molecular methods. A combination of 16S rRNA and 16S ribosomal DNA sequence analysis were used in analyzing the bacterial communities. Results indicated the presence of a number of phototrophic sulfur bacteria. Strains Chromatium okenii DSM169, Amoebabacter purpureus DSM4197 and Lamprocystis roseopersicina DSM229 were detected.

Environmental aspects, Lakes, Lake ecology

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PCR detection, characterization, and distribution of virulence genes in Aeromonas spp

Article Abstract:

Detection, characterization, and distribution study of virulence genes in Aeromonas spp. has been carried out using a new PCR method. The method detects cytolytic enterotoxin and aerolysin genes in Aeromonas spp. using one pair of primers for a specific gene or a cocktail of primers for the most known virulence genes of the species and is rapid, sensitive and specific. The PCR assay also makes possible partial determination of the hybridization group of a potential virulent isolate from a sample if used with PCR-restriction-fragment-length polymorphism and or PCR-amplicon-sequence analysis.

Belgium, Bangladesh, Usage, Testing, Causes of, Genetic aspects, Bacteria, Identification and classification, Polymerase chain reaction, Cytochemistry, Virulence (Microbiology), Pathogenic microorganisms, Opportunistic infections

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