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(mol″ĭ′kūt-ēz) [L. mollis, soft + cutis, skin]
A class of very small bacteria, some of which have cell walls and others of which have no cell walls but are surrounded instead by a cell membrane. It includes several genera that cause human diseases, including Erysipelothrix (a gram-positive rod shaped bacterium that has a cell wall), Mycoplasma, and Ureaplasma.


members of the order Mycoplasmatales, class Mollicutes. Genera of veterinary importance are Acholeplasma, Mycoplasma, and Ureaplasma.

haemophilic mollicutes
include organisms previously included in the genera Haemobartonella and Eperythrozoon; usually cause haemolytic anemia in a wide range of animal species.
nonhaemotrophic mollicutes
include members of the genus Ureaplasma and some members of the genus Mycoplasma not associated with red blood cells. Most have a high degree of host specificity and infect a wide range of animal species causing subclinical to severe infections of the respiratory and urogenital tracts, arthritis, septicemia and mastitis.
References in periodicals archive ?
Tenericutes, as a class of bacteria distinguished by the absence of a cell wall contains the class Mollicutes [18].
For many years, Mollicutes species recognized as human pathogens of the genitourinary tract (TGU) were restricted to Mycoplasma hominis and Ureaplasma urealyticum, together with Mycoplasma pneumoniae in the respiratory tract.
The class Mollicutes was established in the 1960s to include the Mycoplasmas and related organisms and it now contains four orders, five families, eight genera, and more than 200 known species that have been detected in humans, vertebrate animals, arthropods, and plants (11).
Insusceptibility of members of the class Mollicutes to rifampin: studies of the Spiroplasma citri RNA polymerase [beta]-subunit gene.
4) Nevertheless, in recent years, Mycoplasma and Ureaplasma, two genera belonging to the family mycoplasmateceae, order Mycoplasmatales, class Mollicutes, have been proposed as causatives of genitourinary disease in both men and women.
Mollicutes, streptococcus, mycoplasma, ebstein barr virus and herpes virus have been related to the pathogenesis of SLE [29].
Virus, viroides y mollicutes de las plantas cultivadas en el Peru.
Two phylotypes were related to the class Mollicutes (2%) and to Verrucomicrobia.
34) Asimismo, algunas formas filtrables de bacterias y los Mollicutes (Mycoplasma, Spiroplasma), no son retenidos por los filtros bacteriologicos, (28) y recientemente, se demostro que bacterias de gran tamano pueden atravesar pequenos orificios de 0,2 [micro] de diametro quiza debido a la succion ejercida durante largos periodos de filtracion.
In addition, Asarum-associated soils supported a number of bacterial classes absent in soils collected under Euonymus, including [alpha]-, [delta]-, and [gamma]-Proteobacteria, and Mollicutes.