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

Lynch, Michael, Taylor, Trevor K., Duignan, Padraig J., Swingler, Jane, Marenda, Marc, Arnould, John P. Y. and Kirkwood, Roger 2011, Mycoplasmas in Australian fur seals (Arctocephalus pusillus doriferus) : identification and association with abortion, Journal of veterinary diagnostic investigation, vol. 23, no. 6, pp. 1123-1130.

Attached Files
Name Description MIMEType Size Downloads

Title Mycoplasmas in Australian fur seals (Arctocephalus pusillus doriferus) : identification and association with abortion
Formatted title Mycoplasmas in Australian fur seals (Arctocephalus pusillus doriferus) : identification and association with abortion
Author(s) Lynch, Michael
Taylor, Trevor K.
Duignan, Padraig J.
Swingler, Jane
Marenda, Marc
Arnould, John P. Y.
Kirkwood, Roger
Journal name Journal of veterinary diagnostic investigation
Volume number 23
Issue number 6
Start page 1123
End page 1130
Total pages 8
Publisher Sage Publications
Place of publication Columbia, Mo.
Publication date 2011-11
ISSN 1040-6387
1943-4936
Keyword(s) abortion
Australian fur seals
disease
gestational failure
mycoplasma
pinnipeds
Summary 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 microscopic examination. Predominant findings were interstitial pneumonia, pericarditis, and myocarditis. Mycoplasma phocicerebrale was isolated from the thymus of an aborted fetus, and 3 out of 11 (27%) fetuses with inflammatory heart or lung lesions were PCR-positive for Mycoplasma. In conclusion, several species of Mycoplasma are part of the normal flora of the nasal cavity of Australian fur seals, and some mycoplasmas may be associated with abortion in this species of seal.
Language eng
Field of Research 060809 Vertebrate Biology
Socio Economic Objective 960808 Marine Flora, Fauna and Biodiversity
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Sage pubilshing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044099

Document type: Journal Article
Collection: School of Life and Environmental Sciences
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in TR Web of Science
Google Scholar Search Google Scholar
Access Statistics: 41 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Thu, 05 Apr 2012, 15:47:48 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.