Distinct Community Composition of Previously Uncharacterized Denitrifying Bacteria and Fungi across Different Land-Use Types

• Fujimura Reiko

  Graduate School of Agricultural and Life Sciences, The University of Tokyo

• Azegami Yoichi

  Graduate School of Agricultural and Life Sciences, The University of Tokyo

• Wei Wei

  Graduate School of Agricultural and Life Sciences, The University of Tokyo Jiangsu University

• Kakuta Hiroko

  Graduate School of Agricultural and Life Sciences, The University of Tokyo

• Shiratori Yutaka

  Niigata Agricultural Research Institute

• Ohte Nobuhito

  Graduate School of Informatics, Kyoto University

• Senoo Keishi

  Graduate School of Agricultural and Life Sciences, The University of Tokyo Collaborative Research Institute for Innovative Microbiology, The University of Tokyo

• Otsuka Shigeto

  Graduate School of Agricultural and Life Sciences, The University of Tokyo Collaborative Research Institute for Innovative Microbiology, The University of Tokyo

• Isobe Kazuo

  Graduate School of Agricultural and Life Sciences, The University of Tokyo

Abstract

Recent studies demonstrated that phylogenetically more diverse and abundant bacteria and fungi than previously considered are responsible for denitrification in terrestrial environments. We herein examined the effects of land-use types on the community composition of those denitrifying microbes based on their nitrite reductase gene (nirK and nirS) sequences. These genes can be phylogenetically grouped into several clusters. We used cluster-specific PCR primers to amplify nirK and nirS belonging to each cluster because the most widely used primers only amplify genes belonging to a single cluster. We found that the dominant taxa as well as overall community composition of denitrifying bacteria and fungi, regardless of the cluster they belonged to, differed according to the land-use type. We also identified distinguishing taxa based on individual land-use types, the distribution of which has not previously been characterized, such as denitrifying bacteria or fungi dominant in forest soils, Rhodanobacter having nirK, Penicillium having nirK, and Bradyrhizobium having nirS. These results suggest that land-use management affects the ecological constraints and consequences of denitrification in terrestrial environments through the assembly of distinct communities of denitrifiers.

Journal

• Microbes and Environments

  Microbes and Environments 35 (1), n/a-, 2020

  Japanese Society of Microbial Ecology / Japanese Society of Soil Microbiology / Taiwan Society of Microbial Ecology / Japanese Society of Plant Microbe Interactions / Japanese Society for Extremophiles

Keywords

• denitrification
• nitrite reductase gene
• <i>nirK</i>
• <i>nirS</i>

Details

• CRID: 1390283659846854272
• NII Article ID: 40022205366
• NII Article ID: 130007792089
• NII Book ID: AA11551577
• DOI: 10.1264/jsme2.me19064
• ISSN: 13474405
• ISSN: 13426311
• NDL BIB ID: 030349903
• PubMed: 31996500
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030349903
• Web Site: https://www.jstage.jst.go.jp/article/jsme2/35/1/35_ME19064/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed