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Preserving tardigrades under pressure

Nature volume 395, pages 853–854 (1998)Cite this article

Abstract

When an animal is exposed to high hydrostatic pressure, its cellular membranes1,2, proteins3,4,5 and DNA6 are damaged. At pressures of around 30 megapascals (MPa), proliferation and metabolism in micro-organisms stops; at 300 MPa, most bacteria and multicellular organisms die. But here we show that, in perfluorocarbon at pressures as high as 600 MPa, small terrestrial animals known as tardigrades can survive in a dehydrated state.

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Figure 1: Survival rate of Macrobiotus occidentalis after exposure to high hydrostatic pressure.

References

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Authors and Affiliations

  1. Department of Biological Science, Faculty of Science, Kanagawa University, 2946 Tsuchiya, Hiratsukashi, 259-1293, Japan

    Kunihiro Seki & Masato Toyoshima

Authors
  1. Kunihiro Seki
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  2. Masato Toyoshima
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Seki, K., Toyoshima, M. Preserving tardigrades under pressure. Nature 395, 853–854 (1998). https://doi.org/10.1038/27576

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