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<p>The effects of extreme acceleration, microgravity, and deceleration of a suborbital spaceflight on <i>Bacillus subtilis</i> ATCC 6051 spores were investigated. <i>B. subtilis</i> spores were exposed to a maximum acceleration of ~13 g, a microgravity phase of 6 min, deceleration of 30 g (~300 m/s<sup>2</sup>), and a maximum rotating velocity of 220 <sup>o</sup>s<sup>−1</sup> upon re-entry into Earth’s atmosphere. Post-flight analysis showed the spores exhibited no change in morphology or viability, confirming that <i>B. subtilis</i> spores are resilient to space flight conditions.</p>

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Effects of extreme acceleration, microgravity, and deceleration on Bacillus subtilis onboard a suborbital space flight

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月6日

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  • Eric Yang,
  • Jibin Jeffrey Dhanaraj,
  • Palalle G. Tharushi Perera,
  • Zoltan Vilagosh,
  • Gail N. Iles,
  • Stefan Krämer,
  • Gunnar Florin,
  • Denver P. Linklater,
  • The Hong Phong Nguyen,
  • Chaitali Dekiwadia,
  • Saulius Juodkazis,
  • Rodney J. Croft,
  • Elena P. Ivanova

摘要

The effects of extreme acceleration, microgravity, and deceleration of a suborbital spaceflight on Bacillus subtilis ATCC 6051 spores were investigated. B. subtilis spores were exposed to a maximum acceleration of ~13 g, a microgravity phase of 6 min, deceleration of 30 g (~300 m/s2), and a maximum rotating velocity of 220 os−1 upon re-entry into Earth’s atmosphere. Post-flight analysis showed the spores exhibited no change in morphology or viability, confirming that B. subtilis spores are resilient to space flight conditions.