Also found in: Encyclopedia, Wikipedia.


(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 ?
Among the Cicadellidae and Delphacidae species that were collected in maize crops in Brazil, there are several species reported as insect vectors of phytopathogens, including viruses and mollicutes that can infect maize.
Species-specific PCR for identification of common contaminant mollicutes in cell culture.
They can damage crops by sucking plant sap and transmitting plant disease organisms such as viruses, mollicutes and bacteria (Nielson 1968; Purcell 1985).
A culture medium formulation for primary isolation and maintenance of mollicutes.
Ocorrencia de doencas causadas por mollicutes e por virus nas provincias de Tucuman e de Cordoba na Argentina.
Melbourne, Australia) and Citti (host-pathogen interactions, National Veterinary School of Toulouse, France) offer this collection of papers on the microbiology and pathogenesis of Mollicutes, a class of simple bacteria interesting for their small genome and lack of a cell wall.
Insusceptibility of members of the class Mollicutes to rifampin: studies of the Spiroplasma citri RNA polymerase [beta]-subunit gene.
Mollicutes, streptococcus, mycoplasma, ebstein barr virus and herpes virus have been related to the pathogenesis of SLE [29].
Two phylotypes were related to the class Mollicutes (2%) and to Verrucomicrobia.
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.