| Analysis of Nitrification in Agricultural Soil and Improvement of Nitrogen Circulation with Autotrophic Ammonia-Oxidizing Bacteria. | |
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MedLine Citation:
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PMID: 23274722 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Accumulations of inorganic nitrogen (NH(4) (+), NO(2) (-), and NO(3) (-)) were analyzed to evaluate the nitrogen circulation activity in 76 agricultural soils. Accumulation of NH(4) (+) was observed, and the reaction of NH(4) (+) → NO(2) (-) appeared to be slower than that of NO(2) (-) → NO(3) (-) in agricultural soil. Two autotrophic and five heterotrophic ammonia-oxidizing bacteria (AOB) were isolated and identified from the soils, and the ammonia-oxidizing activities of the autotrophic AOB were 1.0 × 10(3)-1.0 × 10(6) times higher than those of heterotrophic AOB. The relationship between AOB number, soil bacterial number, and ammonia-oxidizing activity was investigated with 30 agricultural soils. The ratio of autotrophic AOB number was 0.00032-0.26 % of the total soil bacterial number. The soil samples rich in autotrophic AOB (>1.0 × 10(4) cells/g soil) had a high nitrogen circulation activity, and additionally, the nitrogen circulation in the agricultural soil was improved by controlling the autotrophic AOBs. |
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Authors:
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Toshihide Matsuno; Sachie Horii; Takanobu Sato; Yoshiki Matsumiya; Motoki Kubo |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-12-30 |
Journal Detail:
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Title: Applied biochemistry and biotechnology Volume: - ISSN: 1559-0291 ISO Abbreviation: Appl. Biochem. Biotechnol. Publication Date: 2012 Dec |
Date Detail:
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Created Date: 2012-12-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8208561 Medline TA: Appl Biochem Biotechnol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Biotechnology, Faculty of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga, 5258577, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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