Mycoplasma yeatsii

(DaMassa, 1994)

Etymology

Gr. n. mukes – fungus, Gr. neut. n. plasma – anything formed, N.L. neut. n. Mycoplasma – fungus form; N.L. masc. gen. n. yeatsii – of Yeats (referring to F.R. Yeats)

Taxonomy

Mycoplasmatales – Mycoplasmataceae – Mycoplasma – Mycoplasma yeatsii (Mycoides cluster), closely related to Mycoplasma cottewii (16S rRNA gene sequence similarity – 99.79%) (Fig. 1)

Type strain

GIH^T (goat, Australia, 1981-1982), (Fig. 2, 16S rRNA gene sequence)

Genomes

one completed (GM274B – USA); 2 draft genomes (NCBI Genome deposit per 11/05/2024)

Cell morphology

spherical – coccoid

Colony morphology

fried egg morphology (Fig. 3)

Metabolism

hydrolysis of arginine; non-fermentative, non-urea-hydrolyzing

Host

goats

Habitat

external ear canal

Disease(s)

unknown

Pathogenicity

considered to be a commensal organism

Epidemiology

unknown

Diagnosis

cultivation and species identification by MALDI-ToF MS, serology or genetically

Fig. 1. Maximum likelihood tree showing the phylogenetic position of Mycoplasma yeatsii GIH^T within the Mycoides cluster of Mycoplasmataceae based on 16S rRNA gene sequences. The sequence of Mycoplasma synoviae WVU 1853^T was used as out-group (Synoviae cluster). Numbers at nodes represent bootstrap confidence values (1000 replications). Only values > 80% are shown. Bar, number of substitutions per nucleotide position. Credits: Joachim Spergser (Vetmeduni Vienna)

>Mycoplasma yeatsii GIH^T

CTGGCGGCATGCCTAATACATGCAAGTCGAACGGGGGTGCTTGCACCCCAGTGGCGAACGGGTGAGTAACACGTATCTAACCTACCTCATAGCGGGGGATAACTTTTGGAAACGAAAGATAATACCGCATGTGAATCTTATTATCGCATGAGAAAAGATTGAAAGGACCGTTTGGTTCACTATGAGATGGGGATGCGGCGTATTAGCTAGTAGGTGAGGTAATGGCTCACCTAGGCGATGATACGTAGCCGAACTGAGAGGTTGATCGGCCACATTGGGACTGAGATACGGCCCAGACTCCTACGGGAGGCAGCAGTAGGGAATTTTTCACAATGGACGAAAGTCTGATGAAGCAATGCCGCGTGAGTGATGACGGCCTTCGGGTTGTAAAGCTCTGTTGTAAGGGAAGAAAAAATAGAGTAGGAAATGCCTCTATATTGACGGTACCTTACCAGAAAGCCACGGCTAACTATGTGCCAGCAGCCGCGGTAATACATAGGTGGCAAGCGTTATCCGGATTTATTGGGCGTATAGGGTGCGTAGGCGGTTTTGCAAGTTTGAGGTTAAAGCCCGGAGCTCAACTCCGGTTCGCCTTGAAAACTGCATTACTAGAATGCAAGAGAGGTAAGCGGAATTCCATGTGTAGCGGTGAAATGCGTAGATATATGGAAGAACACCTGTGGCGAAAGCGGCTTACTGGCTTGTTATTGACGCTGAGGCACGAAAGCGTGGGGAGCAAATAGGATTAGATACCCTAGTAGTCCACGCCGTAAACGATGAGTACTAGGTGTTGGGGTCATCTCAGCGCCGCAGCTAACGCATTAAGTACTCCGCCTGAGTAGTATGCTCGCAAGAGTGAAACTCAAAGGAATTGACGGGGACCCGCACAAGTGGTGGAGCATGTGGTTTAATTCGAAGCAACACGAAGAACCTTACCAGGGCTTGACATCCAGTGCAAAGCTATAGAGATATAGTGGAGGTTAACATTGAGACAGGTGGTGCATGGTTGTCGTCAGTTCGTGCCGTGAGGTGTTGGGTTAAGTCCCGCAACGAACGCAACCCTTGTCGTTAGTTACTAACATTAAGTTGAGGACTCTAACGAGACTGCTAGTGTAAGCTAGAGGAAGGTGGGGATGACGTCAAATCATCATGCCCCTTATGTCCTGGGCTACACACGTGCTACAATGGCTGGTACAAAGAGTCGCAATCTCGCGAGGGGGAGCTAATCTCAAAAAGCCAGTCTCAGTTCGGATTGAAGTCTGCAACTCGACTTCATGAAGCCGGAATCACTAGTAATCGCGAATCAGCTATGTCGCGGTGAATACGTTCTCGGGTCTTGTACACACCGCCCGTCACACCACGAGAGTTGGTAATACCAGAAGTGGGTAGCTTAACCGCAAGGAGAGCGCCTCCCAAGGTAGGACTGGCGATTGGGGTGAAGTCGTAACAAGGT

Fig. 2. 16S rRNA gene sequence of Mycoplasma yeatsii GIH^T(Accession number: NR_026037)

Fig. 3. Colonies of Mycoplasma yeatsii GIH^T on modified Hayflick’s agar after 3 days of incubation exhibiting fried egg morphology, a variable colony size and surface structure, and producing a colour change of medium from ochre to red based on arginine hydrolysis creating an alkaline pH. Bar, 1 mm. Credits: Joachim Spergser (Vetmeduni Vienna)

Species assigned by: DaMassa, A.J., Tully, J.G., Rose, D.L., Pitcher, D., Leach, R.H., Cottew, G.S. 1994. Mycoplasma auris sp. nov., Mycoplasma cottewii sp. nov., and Mycoplasma yeatsii sp. nov., new sterol-requiring mollicutes from the external ear canals of goats. Int. J. Syst. Bacteriol. 44: 479-484.