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The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Response of Shewanella oneidensis MR-1 to Longterm Exposure with Toxic Ionic Liquid: Comparative Studies on MR-1 and SH-1, an Acclimated Strain

유독 이온성 액체의 장기 노출에 대한 Shewanella oneidensis MR-1의 반응: MR-1과 순응된 균주 SH-1의 비교 연구

  • Han, Sang Hyun (Department of Biological Engineering, College of Engineering, Inha University) ;
  • Kang, Chang-Ho (Department of Biological Engineering, College of Engineering, Inha University) ;
  • Kwak, Dae Yung (Department of Biological Engineering, College of Engineering, Inha University) ;
  • Ha, Sung Ho (Department of Chemical Engineering and NanoBioTechnology, Hannam University) ;
  • Koo, Yoon-Mo (Department of Biological Engineering, College of Engineering, Inha University) ;
  • So, Jae-Seong (Department of Biological Engineering, College of Engineering, Inha University)
  • Received : 2012.12.23
  • Accepted : 2013.04.09
  • Published : 2013.04.27
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Abstract

In this study, we investigated the effects of longterm exposure to ionic liquid (IL) on Shewanella oneidensis MR-1 (MR-1). MR1 was acclimated through repeated exposure to IL. The acclimated strain was named as S. oneidensis SH-1 (SH-1) and compared with MR-1 in various aspects including morphology, cell surface hydrophobicity (CSH), motility, and fatty acid. Compared to the MR-1, SH-1 showed elongated cell shape on scanning electron microscopy. Upon exposure to IL, hydrophobicity of SH-1 (28.2%) was higher that of MR-1 (3.3%). In contrast, motility of SH-1 (7 mm) was lower than that also of MR-1 (22 mm), and branched chain fatty acid of SH-1 was lower than that of MR-1, 27.6% and 41.1%, respectively.

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References

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