alexa A Preliminary Investigation Of Novel Putative Non-stereo Specific Dehalogenase Producing Bacteria From Antarctic Psychrotrophic Bacillus Sp. IH1 | 70841
ISSN: 2471-9315

Applied Microbiology: Open Access
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12th International Congress on Microbial Interaction and Applications of Beneficial Microbes

Ismail Haruna
Bauchi State University, Nigeria
Posters & Accepted Abstracts: Appli Micro Open Access
DOI: 10.4172/2471-9315-C1-006
Abstract
2, 2 dichloropropionic acids (dalapon) like most halogenated compounds are commonly used as herbicides and employed in agricultural areas and industries. Toxicity of these xenobiotic compounds causes serious environmental problems. Bacillus sp. IH1 was isolated from top cliff soil collected from Antarctica. The bacteria was first grown on Antarctic bacterial medium and later transferred to a minimal medium containing 2, 2, dichloropropionic acid as carbon source. It grew slowly in the minimal media in different concentrations of 10 mM, 20 mM, 30 mM and 40 mM of 2, 2 DCP. The best growth was observed in 20 mM of 2, 2-DCP with 32 hours as doubling time. To monitor the degradation activity of the bacteria, halide ion assay was carried out to check the release of chloride ion. The best release of chloride was 0.657 mMol/L in 20 mM of 2, 2-DCP. The bacteria was identification using 16S rRNA, genomic DNA extraction method and PCR amplification of 16S rRNA was performed using universal primers 27F and 1492R. Nucleotide blast (BLASTn) showed 97% similarity with Bacillus sp. Results from biochemical tests further confirm the bacteria as Bacillus sp. Using Phylogeny.fr, sequences from nucleotide blast result were used to build a phylogeny tree based on neighbor to neighbor joining.
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