The Treponemataceae are a family of
spirochete
A spirochaete () or spirochete is a member of the phylum Spirochaetota (), (synonym Spirochaetes) which contains distinctive diderm (double-membrane) gram-negative bacteria, most of which have long, helically coiled (corkscrew-shaped or s ...
bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...
. The clade includes a number of significant pathogens, such as
''Treponema'' ''pallidum'', the cause of human syphilis.
References
Spirochaetes
Gram-negative bacteria
Bacteria families
{{Spirochaetae-stub