Radiotolerance of N-cycle bacteria and their transcriptomic response to low-dose space-analogue ionizing irradiation
Abstrak
Summary: The advancement of regenerative life support systems (RLSS) is crucial to allow long-distance space travel. Within the Micro-Ecological Life Support System Alternative (MELiSSA), efficient nitrogen recovery from urine and other waste streams is vital to produce liquid fertilizer to feed food and oxygen production in subsequent photoautotrophic processes. This study explores the effects of ionizing radiation on nitrogen cycle bacteria that transform urea to nitrate. In particular, we assess the radiotolerance of Comamonas testosteroni, Nitrosomonas europaea, and Nitrobacter winogradskyi after exposure to acute γ-irradiation. Moreover, a comprehensive whole transcriptome analysis elucidates the effects of spaceflight-analogue low-dose ionizing radiation on the individual axenic strains and on their synthetic community o. This research sheds light on how the spaceflight environment could affect ureolysis and nitrification processes from a transcriptomic perspective.
Topik & Kata Kunci
Penulis (10)
Tom Verbeelen
Celia Alvarez Fernandez
Thanh Huy Nguyen
Surya Gupta
Baptiste Leroy
Ruddy Wattiez
Siegfried E. Vlaeminck
Natalie Leys
Ramon Ganigué
Felice Mastroleo
Akses Cepat
- Tahun Terbit
- 2024
- Sumber Database
- DOAJ
- DOI
- 10.1016/j.isci.2024.109596
- Akses
- Open Access ✓