A morphological classification of bacteria containing bullet-shaped magnetic particles

Richard H. Thornhill, J. Grant Burgess, Toshifumi Sakaguchi, Tadashi Matsunaga*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


We have studied isolated magnetic bacteria using light and electron microscopy, and classified those which contain bullet-shaped magnetic particles into four distinct morphological types, designated BS-1 to BS-4. Two of the types, BS-1 and BS-2, are new, and have unusual arrangements of magnetic particles. The rod-shaped bacterium BS-1 has a dense network of several thousand magnetic particles, whereas BS-2, a coccus, contains magnetic particles arranged radially in bands.

Original languageEnglish
Pages (from-to)169-176
Number of pages8
JournalFEMS Microbiology Letters
Issue number2-3
Publication statusPublished - 1994 Jan 15
Externally publishedYes


  • Bullet-shaped magnetic particle
  • Magnetic bacteria
  • Morphological classification

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Genetics


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