Living Organisms / Monera (Bacteria) / Bacteria lacking cell-walls / Genus:
Mycoplasma
Bacterial genera and types to have Wildpro links
Morphology and Staining
Genera "type species"
References

Bacterial Species to have Wildpro links

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Morphology and Staining

Shape "Pleomorphic, varying in shape from spherical, slightly ovoid or pear shaped to slender branched filaments of uniform diameter." Minute plastic cells have been noted in cell-cultures which will pass through membrane filters and continue to be viable.Cells are bounded only by a plasma membrane and do not have a cell-wall. (B74)
Staining "Gram-negative" (B74)
Size "0.3-0.8 micrometre diameter." (B74)
"Ranging from a few micrometres to 150 micrometre length." (B74)
Spore formation None.
Motility "Usually non-motile, but gliding motility has been described in some species" (B74)
Growth Temperature The optimum temperature for Mycoplasma spp. from warm-blooded animal species is usually 37C. (B47)
Metabolism "Facultatively anaerobic. Require cholesterol or related sterols for growth." (B74)
Notes The term "Mycoplasma" is commonly used in reference to the family "Mollicutes" which include other genera (Acholeplasma, Anaeroplasma, Asteroplasma, Mycoplasma, Spiroplasma and Ureaplasma). (B88)

Members of the genus Mycoplasma are obligate parasites and pathogens of a wide range of mammalian and avian hosts and tend to be adapted to a specific host. Whilst this may result in a commensal type relationship, some species cause serious disease in domestic animals - for example contagious bovine pleuropneumonia (Mycoplasma mycoides subsp. mycoides). (B74) (B47)

Identification of species can sometimes be difficult due to the presence of more than one species. (B47)

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Genera "Type Species"

  • Mycoplasma mycoides (B74)

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Primary References at the level of this taxa

Genus Author

Suzanne Boardman
B47 John F Timoney, James H Gillespie, Fredric W Scott, Jeffrey E Barlough
Hagan and Bruner's Microbiology and Infectious Diseases of Domestic Animals - Eight Edition
B88 Dwight C Hirsh and Yuan Chuang Zee
Veterinary Microbiology
B21 P J Quinn, M E Carter, B Markey, G R Carter
Clinical Veterinary Microbiology
B74 Noel R Krieg and John G Holt
Bergey's Manual of Systematic Bacteriology - Volume 1

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