Publication
Title
Radiotolerance of N-cycle bacteria and their transcriptomic response to low-dose space-analogue ionizing irradiation
Author
Abstract
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.
Language
English
Source (journal)
iScience
Publication
Elsevier , 2024
ISSN
2589-0042
DOI
10.1016/J.ISCI.2024.109596
Volume/pages
27 :5 (2024) , p. 1-20
Article Reference
109596
Pubmed ID
38638570
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Record
Identifier
Creation 22.04.2024
Last edited 23.04.2024
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