NDLI: Heterotrophic nitrogen removal by Providencia rettgeri strain YL

Content Provider	Springer Nature Link
Author	Zhao, Bin He, Yi Liang Huang, Jue Taylor, Shauna Hughes, Joseph
Copyright Year	2010
Abstract	Providencia rettgeri strain YL was found to be efficient in heterotrophic nitrogen removal under aerobic conditions. Maximum removal of NH4+–N occurred under the conditions of pH 7 and supplemented with glucose as the carbon source. Inorganic ions such as Mg2+, Mn2+, and Zn2+ largely influenced the growth and nitrogen removal efficiency. A quantitative detection of nitrogen gas by gas chromatography was conducted to evaluate the nitrogen removal by strain YL. From the nitrogen balance during heterotrophic growth with 180 mg/l of NH4+–N, 44.5% of NH4+–N was in the form of N2 and 49.7% was found in biomass, with only a trace amount of either nitrite or nitrate. The utilization of nitrite and nitrate during the ammonium removal process demonstrated that the nitrogen removal pathway by strain YL was heterotrophic nitrification-aerobic denitrification. A further enzyme assay of nitrate reductase and nitrite reductase activity under the aerobic condition confirmed this nitrogen removal pathway.
Starting Page	609
Ending Page	616
Page Count	8
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	37
Issue Number	6
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-03-24
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Heterotrophic nitrification-aerobic denitrification Providencia rettgeri Nitrogen removal Nitrate reductase Nitrite reductase Microbiology Bioinformatics Biotechnology Genetic Engineering Inorganic Chemistry Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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