論文

査読有り
2015年9月

Formation of Filamentous Mn Oxide Particles by the Alphaproteobacterium Bosea sp Strain BIWAKO-01

GEOMICROBIOLOGY JOURNAL
  • Seiko Furuta
  • ,
  • Hisato Ikegaya
  • ,
  • Hideki Hashimoto
  • ,
  • Satoshi Ichise
  • ,
  • Tetsuro Kohno
  • ,
  • Naoyuki Miyata
  • ,
  • Jun Takada

32
8
開始ページ
666
終了ページ
676
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1080/01490451.2014.982837
出版者・発行元
TAYLOR & FRANCIS INC

Mn-rich filamentous particles present in stratified water environments are considered bacteriogenic; however, little is known about their causative agents. This study investigated the production of these particles by an alphaproteobacterium, Bosea sp. strain BIWAKO-01. Particle formation was promoted in static cultures with slightly viscous medium at pH 6.0-6.3 under low-O-2 conditions. The Mn(II) oxidation in cultures was slower in higher O-2 concentration. These results suggested that pH and O-2 concentration are important factors affecting filamentous Mn particle formation in the Mn(II) oxidizer. Lectin staining followed by fluorescence microscopy revealed the presence of specific carbohydrates in the filamentous structures. In addition, transmission electron microscopy, high angle annular dark field scanning transmission electron microscopy, and electron energy loss spectroscopy revealed the structural and spatial associations of Mn with O and C on a nanometer scale in filaments. The results suggested the occurrence of sheet-type Mn oxide likely due to the catalytic activity in exopolymeric substances including acidic polysaccharides.

Web of Science ® 被引用回数 : 6

リンク情報
DOI
https://doi.org/10.1080/01490451.2014.982837
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000364949600002&DestApp=WOS_CPL

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