Importance of Mg^2＋ for the Growth of the Halotolerant <I>Bacillus</I> sp. TSK2

• MIMURA Haruo

  Graduate School of Maritime Sciences, Kobe University

• SHIMOMURA Takuya

  Graduate School of Maritime Sciences, Kobe University

抄録

The growth rate of Bacillus sp. TSK2 increased when Mg^2＋ was externally added to LB medium at 25 ℃ and showed the maximum value, 0.82 （Doubling time h^－1）, at 50 mM. While the growth rate was repressed to 0.12 in the presence of 1.0 M NaCl in the medium, the value increased to 0.59 at the same concentration of NaCl, and the growth ability expanded to 3.0 M when 50 mM Mg^2＋ was added to the medium. These results indicate that the strain possesses transport system (s) with relatively low affinity to Mg^2＋, and a concentration of Mg^2＋ similar to that in seawater plays an important role in growth under high NaCl stress.

収録刊行物

• 日本海水学会誌

  日本海水学会誌 68 (5), 305-306, 2014

  日本海水学会

キーワード

• Halotolerant <i>Bacillus</i> sp. TSK2
• Mg^2＋
• Growth rate
• Glycine betaine

詳細情報

• CRID: 1390282679574237696
• NII論文ID: 130005097753
• DOI: 10.11457/swsj.68.305
• ISSN: 21859213
• ISSN: 03694550
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可