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Published on: January 18, 2020
Draft Genome Sequence of Serratia marcescens SSA1, Isolated from Dioxin-Polluted Soil
Salametu Saibu1, Nwanneka M Akinyemi1, Ayodeji A Odunsi1
1Department of Microbiology, Faculty of Science, University of Lagos, Lagos, Nigeria.
Abstract:
Serratia marcescens SSA1 was isolated from a dump site with a history of incineration. Its DNA of 5.05 Mbp has a GC content of 59.65%, with 77 tRNA genes and 3 rRNA genes. Its 4,909 putative PATRIC protein-coding genes include genes responsible for the degradation of dioxins and other xenobiotics and total consumption of benzoate.
Insights
This study details Serratia marcescens SSA1, a bacterium isolated from an incineration dump site. It possesses genes for degrading harmful dioxins and consuming benzoate, highlighting its bioremediation potential.
Area of Science:
- Environmental microbiology
- Genomics
- Bioremediation
Background:
- Microbial communities in contaminated sites are crucial for pollutant degradation.
- Incineration sites can harbor unique microorganisms with specialized metabolic capabilities.
Purpose of the Study:
- To characterize the genome of Serratia marcescens SSA1.
- To identify genes involved in xenobiotic degradation and metabolic pathways.
Main Methods:
- Isolation and cultivation of bacteria from an incineration dump site.
- Whole-genome sequencing and analysis.
- Bioinformatic identification of functional genes and pathways.
Main Results:
- Serratia marcescens SSA1 genome is 5.05 Mbp with 59.65% GC content.
- The genome contains 4,909 protein-coding genes, including those for dioxin and xenobiotic degradation.
- Genes for complete benzoate consumption were identified.
Conclusions:
- Serratia marcescens SSA1 is a promising candidate for bioremediation of contaminated environments.
- The identified genes provide a basis for understanding microbial degradation of pollutants.

