Bacteria

Mycoplasma

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Mycoplasma, Ureaplasma

  • Taxonomy
  1. Class: Mollicutes
  2. Order: Mycoplasmatales
  3. Family: Mycoplasmataceae
  • Pathophysiology
  1. Mycoplasma lacks a cell wall (has only a simple outer cell membrane)
    1. Does not Gram Stain (not Gram Positive or Gram Negative)
    2. Not susceptible to beta lactam antibiotics (e.g. Penicillins)
  • Genus I
  • Mycoplasma (60 species, do not hydrolyze urea)
  1. Mycoplasma pneumoniae
  2. Mycoplasma hominis
  3. Mycoplasma Genitalium
  • Genus II
  • Ureaplasma (2 species, hydrolyze urea)
  1. Ureaplasma Urealyticum
  2. Ureaplasma Parvum
    1. Includes 4 serovars (1, 3, 6, and 14) that were previously classified as Ureaplasma Urealyticum