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Mycoplasma genitalium

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A gram-positive parasitic and flask-shaped pathogenic bacterium involved in urogenitaltract infections of both men and women.


Mycoplasma genitalium has the smallest genome known in free-living organisms at about 580kb long with 479 coding protein sequence. It does not contain gene for amino acid biosynthesis with few genes of nucleic acids, fatty acids and vitamins. It lacks cell wall only plasmamembrane containing mass of proteins.

Mycoplasma genitalium is a bacterium that is difficult to study and it takes months to isolate and grow. It is usually found adhering and invading to the epithelial linings of urogenital tracts but as well isolated in the respiratory tract.

Mycoplasma genitalium is associated in sexually transmitted pathogen and very fastidious. In women it is located in the genital tract that leads to disease including cervicitis, salpingitis and urethritis in which symptoms usually absent but sometime abnormal discharge from the vagina occurs as well as bleeding after sex whereas in men caused infection in urethra manifested with watery discharge from the penis and burning feeling when urinating.

Scientific classification:

Kingdom: Bacteria
Division: Firmicutes
Order: Mycoplasmatales
Family: Mycoplasmataceae
Genus: Mycoplasma
Species: Mycoplasma genitalium

See also:


Vaginal infection

Genital disease

Urogenital infection