Reduced Pseudomonas aeruginosa Cell Size Observed on Planktonic Cultures Grown in the International Space Station.

ABSTRACT: Bacterial growth and behavior have been studied in microgravity in the past, but little focus has been directed to cell size despite its impact on a myriad of processes, including biofilm formation, which is impactful regarding crew health. To interrogate this characteristic, supernatant aliquots of P. aeruginosa cultured on different materials and media on board the International Space Station (ISS) as part of the Space Biofilms Project were analyzed. For that experiment, P. aeruginosa was grown in microgravity-with matching Earth controls-in modified artificial urine medium (mAUMg-high Pi) or LB Lennox supplemented with KNO₃, and its formation of biofilms on six different materials was assessed. After one, two, and three days of incubation, the ISS crew terminate

SUBMITTER: Herrera-Jordan K 

PROVIDER: S-EPMC10892763 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature