Mycoplasma mycoides
Species of bacterium From Wikipedia, the free encyclopedia
Species of bacterium From Wikipedia, the free encyclopedia
Mycoplasma mycoides is a bacterial species of the genus Mycoplasma in the class Mollicutes. This microorganism is a parasite that lives in ruminants. Mycoplasma mycoides comprises two subspecies, mycoides and capri, which infect cattle and small ruminants such as goats respectively.
| Mycoplasma mycoides | |
|---|---|
Scientific classification  | |
| Domain: | Bacteria |
| Phylum: | Mycoplasmatota |
| Class: | Mollicutes |
| Order: | Mycoplasmatales |
| Family: | Mycoplasmataceae |
| Genus: | Mycoplasma |
| Species group: | Mycoplasma mycoides group |
| Species: | M. mycoides |
| Binomial name | |
| Mycoplasma mycoides (Borrel et al., 1910) Freundt, 1955 | |
| Subspecies | |
| |
The subspecies "Mycoplasma mycoides subsp. mycoides (Mmm)", previously named "Mycoplasma mycoides subsp. mycoides Small Colony (SC) type (MmmSC)", is known as the agent of contagious bovine pleuropneumonia (CBPP), a contagious lung disease of cattle. It was first isolated in 1898 by Edmond Nocard et al. and the first mycoplasma to be isolated at all.[1][2]
Formerly, M. mycoides subsp. mycoides was known as Asterococcus mycoides.[3]
Mycoplasma mycoides belongs to the Mycoplasma mycoides cluster, or Mycoplasma mycoides group, a group of closely related infectious mycoplasmas, first named by Weisburg et al.[4]
The cluster sensu stricto contains the genera Mycoplasma mycoides and Mycoplasma capricolum and comprises six species and subspecies:
The last one is disputed with respect to the question of being a separate species.[5][6]
In 2009, L. Manso-Silván et al. proposed to consider M. mycoides subsp. mycoides biotype Large Colony as equal with M. mycoides subsp. capri. Furthermore, they proposed the name Mycoplasma leachii sp. nov. for Mycoplasma sp. 'bovine group 7' as a separate species.[5]
The first genome of Mycoplasma mycoides to be sequenced was that of strain PG1T, the Causative Agent of Contagious Bovine Pleuropneumonia (CBPP). It has a single circular chromosome of 1,211,703 bp and contains 985 putative genes, of which 72 are part of insertion sequences and encode transposases. This was the highest density of insertion sequences (13% of the genome size) of all sequenced bacterial genomes at the time of its publication (2004).[7]
In 2010, as part of the Minimal Genome Project, a team of the J. Craig Venter Institute synthesized a modified version (JCVI-syn1.0) of the 1,000,000 base pair M. mycoides genome and implanted it into a DNA-free bacterial shell of Mycoplasma capricolum;[8] the resulting organism was shown to be self-replicating.[9][10]
In 2016, the Venter Institute used genes from the JCVI-syn1.0 to synthesize an even smaller genome they call JCVI-syn3.0, that contains 531,560 base pairs and 473 genes.[11]
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