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

IF 4.1 1区物理与天体物理 Q1 MULTIDISCIPLINARY SCIENCES

npj Microgravity Pub Date : 2025-10-06 DOI:10.1038/s41526-025-00526-4

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

引用次数: 0

Abstract

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.

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亚轨道太空飞行中极端加速、微重力和减速对枯草芽孢杆菌的影响。

研究了亚轨道飞行极端加速、微重力和减速对枯草芽孢杆菌ATCC 6051孢子的影响。枯草芽孢杆菌孢子在返回地球大气层时，最大加速度为~13 g，微重力阶段为6 min，减速为30 g (~300 m/s2)，最大旋转速度为220 s-1。飞行后的分析表明，孢子的形态和活力没有变化，证实了枯草芽孢杆菌孢子对太空飞行条件具有弹性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

npj Microgravity Physics and Astronomy-Physics and Astronomy (miscellaneous)

CiteScore

7.30

自引率

7.80%

发文量

审稿时长

9 weeks

期刊介绍： A new open access, online-only, multidisciplinary research journal, npj Microgravity is dedicated to publishing the most important scientific advances in the life sciences, physical sciences, and engineering fields that are facilitated by spaceflight and analogue platforms.