Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

A square bacterium

Abstract

I have come across a bacterium which has the form of a thin square sheet. In most bacteria such a shape would be precluded by the osmotically-generated internal hydrostatic pressure but this organism, found in a saturated brine pool, has little or no cell turgor pressure. Its shape is probably determined by the pattern in which the cell envelope particles assemble. These square bacteria are so thin and transparent and are so unlike any bacteria previously described that I would have overlooked them if they had not possessed gas vacuoles, and I had not been looking for different forms of gas-vacuolate organisms. The squares derive buoyancy from their gas vacuoles and float at the brine surface.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Cohen-Bazire, G., Kunisawa, R. & Pfennig, N. J. Bact. 100, 1049 (1969).

    CAS  PubMed  Google Scholar 

  2. Walsby, A. E. Bact. Rev. 36, 1 (1972).

    CAS  PubMed  Google Scholar 

  3. Walsby, A. E. Microbial Ecol. 1, 51 (1974).

    Article  CAS  Google Scholar 

  4. Clark, A. E. & Walsby, A. E. Archs. Microbiol. 118, 223 (1978).

    Article  Google Scholar 

  5. Larsen, H. in The Bacteria Vol. 4, 297–342 (Academic, New York, 1963).

    Google Scholar 

  6. Petter, H. F. M. thesis, Univ. Utrecht (1932).

  7. Krumbein, W. E. et al. Naturwissenschaften (in the press).

  8. Bowen, C. C. & Jensen, T. E. Science 147, 915 (1965).

    Article  Google Scholar 

  9. Walsby, A. E. & Buckland, B. Nature 224, 716 (1969).

    Article  ADS  Google Scholar 

  10. Mohr, V. & Larsen, H. J. gen. Microbiol. 31, 267 (1963).

    Article  CAS  Google Scholar 

  11. Woese, C. R. & Fox, G. E. Proc. nat. Acad. Sci. U.S.A. 74, 5088 (1977).

    Article  ADS  CAS  Google Scholar 

  12. Larsen, H., Omang, S. & Steensland, H. Arch. Mikrobiol. 59, 197 (1967).

    Article  CAS  Google Scholar 

  13. Walsby, A. E. Proc. R. Soc. B 178, 301 (1971).

    ADS  Google Scholar 

  14. Steed, P. D. M. J. gen. Microbiol. 29, 615 (1963).

    Article  Google Scholar 

  15. Walsby, A. E. Proc. R. Soc. B (in the press).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Walsby, A. A square bacterium. Nature 283, 69–71 (1980). https://doi.org/10.1038/283069a0

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1038/283069a0

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing