Abstract
An exopolysaccharide (EPS)-producing heavy metal-resistant Gram-negative bacterium was isolated from ore-contaminated soil. The selected strain was identified by 16S rDNA sequencing and designated as Halomonas sp. MG. Phylogenetic analysis of the gene sequence showed its close similarity with Halomonas sp. Field emission scanning electron microscopy analysis revealed that the EPS had a porous structure with small pores. X-ray diffractograms showed the non-crystalline nature of the EPS. Further, FTIR spectroscopic analysis revealed the presence of carboxyl, hydroxyl and amide groups corresponding to a typical EPS.
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Acknowledgments
The research work was supported by the National Research Foundation of Korea (NRF) grant funded by the government (MEST; No. 2011-0020202). This research was also supported by Korea Ministry of Environment as “Eco-Innovation project (Project No. 2014000140003).”
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Communicated by Erko Stackebrandt.
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Govarthanan, M., Shim, J., Praburaman, L. et al. Isolation of an exopolysaccharide-producing heavy metal-resistant Halomonas sp. MG. Arch Microbiol 198, 205–209 (2016). https://doi.org/10.1007/s00203-015-1173-5
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DOI: https://doi.org/10.1007/s00203-015-1173-5