Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions

Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions

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% w...

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Main Authors: Takenaka S., Zhou Q., Kuntiya A., Seesuriyachan P., Murakami S., Aoki K.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-33847318870&partnerID=40&md5=c5e7c0e506932016c227fa048af25f91
http://cmuir.cmu.ac.th/handle/6653943832/575
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-5752014-08-29T08:50:24Z Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions Takenaka S. Zhou Q. Kuntiya A. Seesuriyachan P. Murakami S. Aoki K. 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. 2014-08-29T08:50:24Z 2014-08-29T08:50:24Z 2007 Article 01415492 10.1007/s10529-006-9255-8 17203345 BILED http://www.scopus.com/inward/record.url?eid=2-s2.0-33847318870&partnerID=40&md5=c5e7c0e506932016c227fa048af25f91 http://cmuir.cmu.ac.th/handle/6653943832/575 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description 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.
format Article
author Takenaka S.
Zhou Q.
Kuntiya A.
Seesuriyachan P.
Murakami S.
Aoki K.
spellingShingle Takenaka S.
Zhou Q.
Kuntiya A.
Seesuriyachan P.
Murakami S.
Aoki K.
Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
author_facet Takenaka S.
Zhou Q.
Kuntiya A.
Seesuriyachan P.
Murakami S.
Aoki K.
author_sort Takenaka S.
title Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
title_short Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
title_full Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
title_fullStr Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
title_full_unstemmed Isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
title_sort isolation and characterization of thermotolerant bacterium utilizing ammonium and nitrate ions under aerobic conditions
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-33847318870&partnerID=40&md5=c5e7c0e506932016c227fa048af25f91
http://cmuir.cmu.ac.th/handle/6653943832/575
_version_ 1681419508854554624

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