The aim of this study was to demonstrate for the first time Fuligo septica spore viability in the stratosphere through spore germination and its complete life cycle. These protozoan spores were flown by the National Aeronautics and Space Administration (NASA) Columbia Scientific Balloon Facility (CSBF) flight 667NT, launched from its base in Fort Sumner, New Mexico. F. septica spores were exposed to stratospheric conditions on board the NASA/CSBF 667 balloon flight for 9 h. The spores obtained after the flight and those from the control box that stayed at ground maintained the same size and morphology, as will be shown in this work. The spores retained viability, and all life cycle stages were obtained by in vitro culture. Moreover, some life cycle events were observed for the first time in F. septica.

中文翻译：

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平流层NASA气球上的Fuligo septica孢子及其完整的体外生命周期。

这项研究的目的是通过孢子萌发及其完整的生命周期，首次证明平流层中的Fuligo septica孢子活力。这些原生动物的孢子是由美国国家航空航天局（NASA）哥伦比亚科学气球设施（CSBF）航班667NT飞行的，它是从其基地在新墨西哥州萨姆纳堡发射的。在NASA / CSBF 667气球飞行中，败血性芽孢杆菌的孢子在平流层条件下暴露9小时。飞行后获得的孢子与控制箱中留在地面的孢子保持相同的大小和形态，这将在本文中显示。孢子保留了活力，并且所有生命周期阶段都通过体外培养获得。此外，首次在败血镰刀菌中观察到一些生命周期事件。