Biodiversity of Microorganisms Colonizing the Surface of Polystyrene Samples Exposed to Different Aqueous Environments
| Autor: | Tatyana P. Tourova, Diyana S. Sokolova, Tamara N. Nazina, Denis S. Grouzdev, Anatoly Laptev, Eugeni Kurshev |
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| Rok vydání: | 2020 |
| Předmět: |
Blastomonas
Microorganism Geography Planning and Development TJ807-830 polystyrene Management Monitoring Policy and Law TD194-195 biodegradation Renewable energy sources 03 medical and health sciences Gammaproteobacteria the sty-operon GE1-350 030304 developmental biology 0303 health sciences Environmental effects of industries and plants biology 030306 microbiology Renewable Energy Sustainability and the Environment Chemistry Pseudomonas Alphaproteobacteria high-throughput sequencing Bacteroidetes the 16S rRNA gene biology.organism_classification Environmental sciences Microbial population biology Environmental chemistry Seawater microbial community |
| Zdroj: | Sustainability, Vol 12, Iss 3624, p 3624 (2020) Sustainability Volume 12 Issue 9 |
| ISSN: | 2071-1050 |
| DOI: | 10.3390/su12093624 |
| Popis: | The contamination of marine and freshwater ecosystems with the items from thermoplastics, including polystyrene (PS), necessitates the search for efficient microbial degraders of these polymers. In the present study, the composition of prokaryotes in biofilms formed on PS samples incubated in seawater and the industrial water of a petrochemical plant were investigated. Using a high-throughput sequencing of the V3&ndash V4 region of the 16S rRNA gene, the predominance of Alphaproteobacteria (Blastomonas), Bacteroidetes (Chryseolinea), and Gammaproteobacteria (Arenimonas and Pseudomonas) in the biofilms on PS samples exposed to industrial water was revealed. Alphaproteobacteria (Erythrobacter) predominated on seawater-incubated PS samples. The local degradation of the PS samples was confirmed by scanning microscopy. The PS-colonizing microbial communities in industrial water differed significantly from the PS communities in seawater. Both communities have a high potential ability to carry out the carbohydrates and amino acids metabolism, but the potential for xenobiotic degradation, including styrene degradation, was relatively higher in the biofilms in industrial water. Bacteria of the genera Erythrobacter, Maribacter, and Mycobacterium were potential styrene-degraders in seawater, and Pseudomonas and Arenimonas in industrial water. Our results suggest that marine and industrial waters contain microbial populations potentially capable of degrading PS, and these populations may be used for the isolation of efficient PS degraders. |
| Databáze: | OpenAIRE |
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