IDENTIFICATION OF NOVEL BACTERIAL SPECIES CAPABLE OF DEGRADING DALAPON USING 16S RRNA SEQUENCING
DOI:
https://doi.org/10.11113/jt.v78.4763Keywords:
Dalapon, 16S rRNA, identificationAbstract
2,2-dichloropropionic acid (2,2DCP) is used as herbicide in agricultural industry and it is one of the halogenated organic compounds distributed widely in the world causing contamination. In this study, a bacterial strain isolated from contaminated soil where halogenated pesticides applied in Universiti Teknologi Malaysia and it was named “JHA1â€. Bacterium JHA1 was able to utilize 2,2 dichloropropionate 2,2-DCP or (Dalapon) as a source of carbon and energy. Based on 16S rRNA analysis, the isolate showed 87% identity to Terrabacter terrae strain PPLB. The identity score was lower than 98% so that it was suggested to be new organisms that worth for further investigations if it will be proven that this is novel. Therefore, current isolate was designated as Terrabacter terrae JHA1. The isolate grew in the minimal media containing 10 mM, 15 mM, 20 mM and 25 mM of 2,2- DCP as the sole energy and carbon source and the best growth rate was in 20 mM as the optimum concentration of 2,2-DCP while bacterial growth was inhibited in medium with 30 mM 2,2-DCP.
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