Ureaplasma urealyticum

RANK: Species

TAXONOMY: Terrabacteria group -> Tenericutes -> Mollicutes -> Mycoplasmatales -> Mycoplasmataceae -> Ureaplasma -> Ureaplasma urealyticum


The six recognised Ureaplasma species have a GC content of 2 7–30%, and a genome size ranging from 0.76 to 1.17 Mbase pairs, and cholesterol is required for growth. A defining characteristic of the genus is that they perform urea hydrolysis. Some strains originally classified as U. urealyticum should be treated as a new species, U. parvum.

This species has been identified as a resident in the human gastrointestinal tract based on the phylogenetic framework of its small subunit ribosomal RNA gene sequences.[PMC 4262072]

Gut associated

Substrates/ Growth Factors
  • Urea [parent]
  • Cholesterol
  • Urea

  • Metabolic Endproducts
  • Ammonia