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Environmental Distribution and Taxonomic Diversity of Alkaliphiles

  • Isao Yumoto
  • Kikue Hirota
  • Kazuaki Yoshimune

Background

Two categories exist for discrimination of bacteria that are able to grow at a high pH (pH 9). The first group of bacteria is categorized as alkali-tolerant bacteria. The bacteria belonging to this group can grow at pH 9, but their optimum growth pH is around 7. In addition, they cannot grow at a pH higher than 10. For example, several Virgibacillus spp. (e.g., Virgibacillus chiguensis [Wang et al. 2008]) are able to grow at pH 8–9 but not at pH 10. Another example is alkali-tolerant Anoxybacillus spp. (e.g., Anoxybacillus flavithermus [Pikuta et al. 2000]). They are able to grow at pH 9 but not at pH 10, and their optimum growth pH is around 7. The second group of bacteria is categorized as alkaliphilic bacteria. This category of bacteria is the main issue in this review. Alkaliphilic bacteria can be defined as the bacteria that can grow at above or at pH 10 and/or grow equally well or better in terms of growth intensity or velocity above or at pH 9 compared with those...

Keywords

Gypsy Moth Genus Bacillus Soda Lake Artificial Environment Alkaliphilic Bacillus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© Springer 2011

Authors and Affiliations

  1. 1.Bioproduction Research InstituteNational Institute of Advanced Industrial Science and Technology (AIST)SapporoJapan

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