Magnetite formation by a magnetic bacterium capable of growing aerobically

Tadashi Matsunaga*, Toshifumi Sakaguchi, Fumihiko Tadakoro

*この研究の対応する著者

研究成果: Article査読

246 被引用数 (Scopus)

抄録

A helically shaped magnetic bacterium was isolated from freshwater sediment and a pure culture was obtained. The growth medium contained succinate, nitrate and ferric malate as the carbon, nitrogen and iron sources, respectively. The magnetic bacterium, designated AMB-1, was able to grow in free gaseous exchange with an air atmosphere. When cells were grown aerobically on agar, oxidase activity was present, and white non-magnetic colonies, which did not show catalase activity, were formed. The stationary phase of growth was reached 4-5 days later at a cell concentration of 1.4×109 cells/ml in liquid culture when an initial cell concentration of 105 cells/ml was employed. After ultrasonic disruption of harvested cells, 2.6 mg bacterial magnetite was obtained from a 11 culture.

本文言語English
ページ(範囲)651-655
ページ数5
ジャーナルApplied Microbiology and Biotechnology
35
5
DOI
出版ステータスPublished - 1991 8月
外部発表はい

ASJC Scopus subject areas

  • 微生物学(医療)
  • 微生物学
  • バイオエンジニアリング
  • バイオテクノロジー

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