1. Description of the lake baikal microorganism communities growing on a steel plate and in the natural water surrounding this substratum
- Author
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V. V. Mal’nik, Valentina V. Parfenova, N. S. Pavlovskaya, A. N. Suturin, and Oleg A. Timoshkin
- Subjects
Cyanobacteria ,Bacilli ,biology ,Sphingobacteria ,Microbial population biology ,Ecology ,Microorganism ,Botany ,Biofilm ,Verrucomicrobia ,biology.organism_classification ,16S ribosomal RNA ,General Environmental Science - Abstract
This article presents an analysis of the microbial community growing on a stainless steel plate. A sample from this plate has been tested for the rpoC gene. Dominant biofilm species (clones) were identified with the help of molecular cloning and nucleotide sequencing of a 16S rRNA gene fragment. The activities of planktonic microorganisms and biofilm microorganisms attached to the plate were compared. Seven of nineteen sequences (37%) were found to belong to the Sphingobacteria group. Analysis of 16S rRNA gene sequences cloned from natural biofilms sampled from Lake Baikal showed a great variety of microorganisms in the biofilm. The following taxonomic groups were revealed among them: sphingobacteria, α-proteobacteria, cyanobacteria, verrucomicrobia, bacilli, γ-proteobacteria, flavobacteria, and β-proteobacteria. This kind of analysis was done in Lake Baikal for the first time.
- Published
- 2013
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