FISH image showing Propionicimonas (probe Pro60). Red/yellow microcolonies and cells are an overlay of red and green fluorescence images (specific probes in red and the bacterial probes EUBmixture in green). Bar= 10 microns. - Source:1Aerobic heterotroph
Propionicimonas are relatively abundant glucose fermenters in activated sludge 1. Cells are pleomorphic rods, often slightly curved. The sole isolate P. paludicola is a facultative anaerobe 3. MiDAS classification includes the genus Propionicicella. The sole member of the genus shares common physiological traits with Propionicimonas, as members of both genera are facultative anaerobes and produce propionate as a product of anaerobic glucose fermentation 4. The sole isolate of Propionicicella has regular rod shaped cells.
 Nielsen, Nguyen, Meyer, Nielsen (2012): Identification of glucose-fermenting bacteria in a full-scale enhanced biological phosphorus removal plant by stable isotope probing. Microbiology (Reading, Engl.) 158 (Pt 7): 1818-25. doi:10.1099/mic.0.058818-0
 Akasaka, Ueki, Hanada, Kamagata, Ueki (2003): Propionicimonas paludicola gen. nov., sp. nov., a novel facultatively anaerobic, Gram-positive, propionate-producing bacterium isolated from plant residue in irrigated rice-field soil. Int. J. Syst. Evol. Microbiol. 53 (Pt 6): 1991-8. doi:10.1099/ijs.0.02764-0
 Bae, Moe, Yan, Tiago, da Costa, Rainey, et al. (2006): Propionicicella superfundia gen. nov., sp. nov., a chlorosolvent-tolerant propionate-forming, facultative anaerobic bacterium isolated from contaminated groundwater. Syst. Appl. Microbiol. 29 (5): 404-13. doi:10.1016/j.syapm.2005.11.004