''Knoellia remsis'' a species of

Gram positive In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bact ...

, nonmotile, non-sporeforming bacteria. The bacteria are aerobic and

mesophilic A mesophile is an organism that grows best in moderate temperature, neither too hot nor too cold, with an optimum growth range from . The optimum growth temperature for these organisms is 37°C. The term is mainly applied to microorganisms. Organi ...

, and the cells are coccoid that group in pairs, tetrads, or clusters. It was originally isolated from an air sample from the Regenerative Enclosed Life Support Module Simulator, which was a system designed to simulate life aboard the

International Space Station The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ...

. The species is named after REMS, the acronym for the Regenerative Enclosed Life Support Module Simulator. The species was originally classified as ''Tetrasphaera remsis'' in 2007, but was reclassified into the genus ''Knoellia'' in 2018. The optimum growth temperature for ''K. remsis'' is 25 °C and can grow in the 10-45 °C range. The optimum pH is 7.0, and can grow in pH 6.0-9.0.

References

{{Taxonbar, from=Q66663019 Intrasporangiaceae Bacteria described in 2007