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Treponema is a genus of spiral-shaped bacteria. The major treponeme species of human pathogens is Treponema pallidum, whose subspecies are responsible for diseases such as syphilis, bejel, and yaws. Treponema carateum is the cause of pinta. [2] Treponema paraluiscuniculi is associated with syphilis in rabbits. [3]
Treponema pallidum is a helically shaped bacterium with high motility consisting of an outer membrane, peptidoglycan layer, inner membrane, protoplasmic cylinder, and periplasmic space. [9] It is often described as gram-negative , but its outer membrane lacks lipopolysaccharide , which is found in the outer membrane of other gram-negative ...
Treponematosis is a term used to individually describe any of the diseases caused by four members of the bacterial genus Treponema. The four diseases are collectively referred to as treponematoses: [1] Syphilis (Treponema pallidum pallidum) Yaws (Treponema pallidum pertenue) Bejel (Treponema pallidum endemicum) Pinta (Treponema carateum)
Treponema denticola is a Gram-negative, obligate anaerobic, motile and highly proteolytic spirochete bacterium. It is one of four species of oral spirochetes to be reliably cultured, the others being Treponema pectinovorum, Treponema socranskii and Treponema vincentii [ 2 ] .
Treponema pallidum subspecies pallidum is a spiral-shaped, Gram-negative, highly mobile bacterium. [ 11 ] [ 22 ] Two other human diseases are caused by related Treponema pallidum subspecies, yaws (subspecies pertenue ) and bejel (subspecies endemicum ), and one further caused by the very closely related Treponema carateum , pinta .
Yaws is a tropical infection of the skin, bones, and joints caused by the spirochete bacterium Treponema pallidum pertenue. [6] [7] The disease begins with a round, hard swelling of the skin, 2 to 5 cm (0.79 to 1.97 in) in diameter. [6]
Bejel, or endemic syphilis, is a chronic skin and tissue disease caused by infection by the endemicum subspecies of the spirochete Treponema pallidum.Bejel is one of the "endemic treponematoses" (endemic infections caused by spiral-shaped bacteria called treponemes), a group that also includes yaws and pinta.
Histopathology of Treponema pallidum spirochetes using a modified Steiner silver stain Scientific classification; Domain: Bacteria: Phylum: Spirochaetota: Class: Spirochaetia: Order: Spirochaetales: Family: Treponemataceae Robinson 1948 [1] (Approved Lists 1980) [2] Genera "Ca. Avitreponema" Brucepastera "Ca. Gallitreponema" Teretinema ...