Screening micro-organisms for cadmium absorption from aqueous solution and cadmium absorption properties of Arthrobacter nicotianae

Takehiko Tsuruta, Daishi Umenai, Tomonobu Hatano, Tsuyoshi Hirajima, Keiko Sasaki

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

To obtain basic information on how microbial cells absorb cadmium from aqueous solution, we examined cadmium absorption in various microorganisms. Of 51 micro-organism strains tested, we found that some Gram-positive bacteria, such as, Arthrobacter nicotianae and Bacillus subtilis, and some actinomycetes, such as, Streptomyces flavoviridis and S. levoris were highly capable of absorbing cadmium from an aqueous solution. A. nicotianae absorbed the largest amount of cadmium, over 800 μmol cadmium per gram of dry wt. cells. However, cadmium absorption by A. nicotianae was affected by the solution pH, cadmium concentration, and cell density. The absorption of cadmium was very rapid. Some factors that affected cadmium absorption by A. nicotianae cells were also discussed.

本文言語英語
ページ(範囲)1791-1796
ページ数6
ジャーナルBioscience, Biotechnology and Biochemistry
78
10
DOI
出版ステータス出版済み - 2014

All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 分析化学
  • 生化学
  • 応用微生物学とバイオテクノロジー
  • 分子生物学
  • 有機化学

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