ArticleMicrobiologyOpen2019
Culture-independent analysis of hydrocarbonoclastic bacterial communities in environmental samples during oil-bioremediation.
Article in MicrobiologyOpen, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Characterization of the biosurfactant production and enzymatic potential of bacteria isolated from an oil-contaminated saline soil.International microbiology : the official journal of the Spanish Society for Microbiology · 2023Article
- Changes in microbial community in the presence of oil and chemical dispersant and their effects on the corrosion of API 5L steel coupons in a marine-simulated microcosm.Applied microbiology and biotechnology · 2020Article
- Bioaugmentation failed to enhance oil bioremediation in three soil samples from three different continents.Scientific reports · 2019Article
- Culture-independent analysis of hydrocarbonoclastic bacterial communities in environmental samples during oil-bioremediation.MicrobiologyOpen · 2019Article
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Authors and funding
7 authors.
Funding
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Abstract
To analyze microbial communities in environmental samples, this study combined Denaturing Gradient Gel Electrophoresis of amplified 16S rRNA-genes in total genomic DNA extracts from those samples with gene sequencing. The environmental samples studied were oily seawater and soil samples, that had been bioaugmented with natural materials rich in hydrocarbonoclastic bacteria. This molecular approach revealed much more diverse bacterial taxa than the culture-dependent method we had used in an earlier study for the analysis of the same samples. The study described the dynamics of bacterial communities during bioremediation. The main limitation associated with this molecular approach, namely of not distinguishing hydrocarbonoclastic taxa from others, was overcome by consulting the literature for the hydrocarbonoclastic potential of taxa related to those identified in this study. By doing so, it was concluded that the hydrocarbonoclastic bacterial taxa were much more diverse than those captured by the culture-dependent approach. The molecular analysis also revealed the frequent occurrence of nifH-genes in the total genomic DNA extracts of all the studied environmental samples, which reflects a nitrogen-fixation potential. Nitrogen fertilization is long known to enhance microbial oil-bioremediation. The study revealed that bioaugmentation using plant rhizospheres or soil with long history of oil-pollution was more effective in oil-removal in the desert soil than in seawater microcosms.
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