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Title: Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
Authors: Takenaka S.
Zhou Q.
Kuntiya A.
Seesuriyachan P.
Murakami S.
Aoki K.
Issue Date: 2007
Abstract: A thermotolerant bacterium, identified as Bacillus licheniformis, completely utilized 0.1% (w/v) NH4NO3 at 30 and 50°C under aerobic condition. The addition of 0.5 mM Fe2+ to the NH 4NO3 medium markedly promoted the utilization of NH 4+ and NO3-. At 50°C, of total nitrogen originally provided, 24% was taken up into the cells and 20% remained in the culture supernatant. Residual nitrogen (56%) was probably removed into the atmosphere. The cell extracts contained enzymes involved in denitrification. GC-MS demonstrated that NH415NO3 had been converted to 15N2O. These results indicate that the strain has denitrification ability under aerobic condition. © 2007 Springer Science+Business Media B.V.
ISSN: 01415492
Appears in Collections:AGRO: Journal Articles

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