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Characterization of aluminum resistant Anoxybacillus sp. SK 3-4 isolated from a hot spring
- Source :
- Journal of basic microbiology. 55(4)
- Publication Year :
- 2014
-
Abstract
- The Anoxybacillus sp. SK 3-4, previously isolated from a hot spring, was screened for its heavy metals resistance (Al(3+), Mn(2+), Cu(2+), Co(2+), Zn(2+), and Ni(2+)) and the strain was found to be most resistant to aluminum. Significant growth of the strain was observed when it was grown in medium containing aluminum (200 mg L(-1)-800 mg L(-1)) with relative growth rates ranging between 77% and 100%. A gene encoding the aluminum resistance protein (accession number: WP_021095658.1) was found in genome of strain SK 3-4, which revealed high sequence identity (95%) to its homologues from Anoxybacillus species. Sequence comparisons with two functionally characterized aluminum resistance proteins, namely G2alt and ALU1-P, showed 97% and 81% of sequence identity, respectively. Four putative metal binding sites were detected in SK 3-4 aluminum resistance protein and G2alt at same amino acid residue positions of 186, 195, 198, and 201. Strain SK 3-4 was found to be able to remove aluminum from aqueous solution. This study demonstrated that Anoxybacillus sp. SK 3-4 could be applied in the treatment of aluminum contaminated wastewater.
Details
- ISSN :
- 15214028 and 02109565
- Volume :
- 55
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Journal of basic microbiology
- Accession number :
- edsair.pmid..........7381bdf8cc26fea16aedf4bbd1df034d