Mycoplasmas in Australian fur seals (Arctocephalus pusillus doriferus): identification and association with abortion

Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
Michael LynchRoger Kirkwood

Abstract

Bacteria from the genus Mycoplasma are common inhabitants of the respiratory, gastrointestinal, and genital tracts of mammals. The understanding of the pathological significance of mycoplasmas in seals is poor, as few studies have utilized the specific culture techniques required to isolate these bacteria. The current study surveyed for the Mycoplasma species present in Australian fur seals (Arctocephalus pusillus doriferus) and investigated the association between infection and pathology. Mycoplasmas were found in the nasal cavities of 55/80 (69%) of apparently healthy individuals. Isolates from 18 individuals were investigated through 16S ribosomal RNA sequencing, and 3 species were identified: M. zalophi, M. phocae, and Mycoplasma sp. (GenBank no. EU714238.1), all of which had previously been isolated from Northern Hemisphere pinnipeds. In addition, mycoplasmas were isolated from the lungs of 4 out of 16 juveniles and 1 out of 5 adults sampled at necropsy. Isolates obtained were M. zalophi, Mycoplasma sp. EU714238.1, and M. phocicerebrale, but infection was not associated with lung pathology in these age classes. Inflammatory disease processes of the heart and/or lungs were present in 12 out of 32 (38%) aborted fetuses on mi...Continue Reading

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Citations

Apr 14, 2016·Royal Society Open Science·Cecilia Barragán-VargasKarina Acevedo-Whitehouse
Jun 22, 2019·Microbiology Resource Announcements·Salvatore FrascaDaniel R Brown
Oct 26, 2016·Molecular Medicine Reports·Jun HeYimou Wu
Apr 4, 2020·Journal of the South African Veterinary Association·Ryan R ReisingerGerhard Steenkamp
Dec 14, 2018·International Journal of Systematic and Evolutionary Microbiology·Dmitriy V VolokhovVladimir E Chizhikov

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Methods Mentioned

BETA
light microscopy
PCR
16S
16S sequencing

Software Mentioned

SeqMan Pro
Basic Local Alignment Tool Search ( BLAST )
Lasergene
Basic Local Alignment Search Tool ( BLAST
BLAST

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