論文

査読有り
2019年2月5日

Airborne Microbial Communities at High-Altitude and Suburban Sites in Toyama, Japan Suggest a New Perspective for Bioprospecting.

Frontiers in bioengineering and biotechnology
  • Daisuke Tanaka
  • ,
  • Kei Sato
  • ,
  • Motoshi Goto
  • ,
  • So Fujiyoshi
  • ,
  • Fumito Maruyama
  • ,
  • Shunsuke Takato
  • ,
  • Takamune Shimada
  • ,
  • Akihiro Sakatoku
  • ,
  • Kazuma Aoki
  • ,
  • Shogo Nakamura

記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.3389/fbioe.2019.00012

Airborne microorganisms, especially those at high altitude, are exposed to hostile conditions, including ultraviolet (UV) radiation, desiccation, and low temperatures. This study was conducted to compare the composition and abundance of airborne microorganisms at a high-altitude site, Mt. Jodo [2,839 m above mean sea level (AMSL)] and a suburban site (23 m AMSL) in Toyama, Japan. To our knowledge, this is the first study to investigate microbial communities in air samples collected simultaneously at two sites in relatively close proximity, from low and high altitude. Air samples were collected over a period of 3 years during 2009-2011. We then examined the bacterial and eukaryotic communities and estimated the abundance of bacteria and fungi with real-time TaqMan PCR. The airborne bacterial and eukaryotic communities differed between high-altitude and suburban sites on each sampling day. Backward trajectory analysis of air masses that arrived at high-altitude and suburban sites on each sampling day displayed almost the same paths. The bacterial communities were dominated by Actinobacteria, Firmicutes, and Proteobacteria, while the eukaryotic communities included Ascomycota, Basidiomycota, and Streptophyta. We also predicted some application of such microbial communities. The airborne bacterial and fungal abundance at the high-altitude site was about two times lower than that at the suburban site. These results showed that each airborne microbial communities have locality even if they are collected close location.

リンク情報
DOI
https://doi.org/10.3389/fbioe.2019.00012
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/30805335
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6370616
URL
https://europepmc.org/articles/PMC6370616

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