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Heterotrophic nitrification and aerobic denitrification by a novel Halomonas campisalis.
|Title||Heterotrophic nitrification and aerobic denitrification by a novel Halomonas campisalis.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Guo Y, Zhou X, Li Y, Li K, Wang C, Liu J, Yan D, Liu Y, Yang D, Xing J|
|Date Published||2013 Dec|
A novel halophilic strain that could carry out heterotrophic nitrification and aerobic denitrification was isolated and named as Halomonas campisalis ha3. It removed inorganic nitrogen compounds (e.g. NO3 (-), NO2 (-) and NH4 (+)) simultaneously, and grew well in the medium containing up to 20 % (w/v) NaCl. PCR revealed four genes in the genome of ha3 related to aerobic denitrification: napA, nirS, norB and nosZ. The optimal conditions for aerobic denitrification were pH 9.0, at 37 °C, with 4 % (w/v) NaCl and sodium succinate as carbon source. The nitrogen removal rate was 87.5 mg NO3 (-)-N l(-1 )h(-1). Therefore, this strain is a potential aerobic denitrifier for the treatment of saline wastewater.
|Alternate Journal||Biotechnol. Lett.|