Culturable bacterial diversity from a feed water of a reverse osmosis system, evaluation of biofilm formation and biocontrol using phages
| Autor: | Roberto Sousa Dias, Valéria Maia de Oliveira, Daiane R.B. Belgini, Ana Paula Rodrigues Torres, J. M. Albanese, S. O. De Paula, L. A. B. Valadares, Virginia Medeiros de Siqueira, Maíra Paula de Sousa, C. C. Silva, R. S. L. Souza |
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| Rok vydání: | 2014 |
| Předmět: |
Osmosis
Physiology Applied Microbiology and Biotechnology Actinobacteria Microbiology Water Purification Bacteriophage Biofouling Bacteriophages Phylogeny biology Bacteria Pseudomonas Biofilm Alphaproteobacteria General Medicine Biodiversity Sequence Analysis DNA biochemical phenomena metabolism and nutrition biology.organism_classification Podoviridae Random Amplified Polymorphic DNA Technique Petroleum Biological Control Agents Biofilms Petroleum microbiology Water Microbiology Biotechnology |
| Zdroj: | World journal of microbiologybiotechnology. 30(10) |
| ISSN: | 1573-0972 |
| Popis: | Biofilm formation on reverse osmosis (RO) systems represents a drawback in the application of this technology by different industries, including oil refineries. In RO systems the feed water maybe a source of microbial contamination and thus contributes for the formation of biofilm and consequent biofouling. In this study the planktonic culturable bacterial community was characterized from a feed water of a RO system and their capacities were evaluated to form biofilm in vitro. Bacterial motility and biofilm control were also analysed using phages. As results, diverse Protobacteria, Actinobacteria and Bacteroidetes were identified. Alphaproteobacteria was the predominant group and Brevundimonas, Pseudomonas and Mycobacterium the most abundant genera. Among the 30 isolates, 11 showed at least one type of motility and 11 were classified as good biofilm formers. Additionally, the influence of non-specific bacteriophage in the bacterial biofilms formed in vitro was investigated by action of phages enzymes or phage infection. The vB_AspP-UFV1 (Podoviridae) interfered in biofilm formation of most tested bacteria and may represent a good alternative in biofilm control. These findings provide important information about the bacterial community from the feed water of a RO system that may be used for the development of strategies for biofilm prevention and control in such systems. |
| Databáze: | OpenAIRE |
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