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Create: 2025-06-03 Update: 2025-07-07 11:27:49

Бактерия, разлагающая органику в космосе 🧫

В мае 2023 года в рамках программы CHAMP (Программа по изучению микробиома жилых модулей китайской космической станции) астронавты с миссии «Шэньчжоу-15» взяли мазки с поверхностей станции «Тяньгун». Анализ этих образцов привёл к открытию ранее неизвестной на Земле бактерии — Niallia tiangongensis. Исследование опубликовано в журнале International Journal of Systematic and Evolutionary Microbiology.

🧬 Грамположительная, аэробная, спорообразующая палочковидная бактерия, близкая к Niallia circulans, но с существенными генетическими отличиями. Этот вид способен расщеплять желатин, используя его как источник азота и углерода — так же поступают и знакомые нам бактерии в компосте. Помимо этого, она обладает повышенной устойчивостью к радиации и окислительному стрессу, что, вероятно, связано с мутациями в белках, отвечающих за формирование биоплёнок и восстановление ДНК.

Хотя пока неизвестно, представляет ли Niallia tiangongensis угрозу для здоровья экипажа, её родственник Niallia circulans способен вызывать сепсис у людей с ослабленным иммунитетом...

Изучение таких бактерий может способствовать разработке новых биотехнологий, включая системы переработки отходов. Кроме того, понимание механизмов устойчивости микроорганизмов к условиям космоса может оказаться полезным для медицины и сельского хозяйства на Земле.

#бактерия #компост #космос #органика #compostpro

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microbiologyresearch.org

Niallia tiangongensis sp. nov., isolated from the China Space Station

Understanding the characteristics of microbes during long-term space missions is essential for safeguarding the health of astronauts and maintaining the functionality of spacecraft. In this study, a Gram-positive, aerobic, spore-forming, rod-shaped strain…

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