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Ishihara M, Yamazaki Y, Katsuda K, Ito H. Phenotypic and genotypic characterization of Actinobacillus suis sensu stricto isolated from a dairy calf. J Vet Med Sci 2022; 84:624-627. [PMID: 35387957 PMCID: PMC9177398 DOI: 10.1292/jvms.22-0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The species of the genus Actinobacillus have so far been associated with specific animal hosts, and A. suis sensu stricto, an opportunistic pathogen of
swine, is rarely isolated from ruminants. We describe here the isolation of A. suis sensu stricto from a newborn calf that died on a dairy farm in Japan. Identification of
the isolate was performed by phenotypic and genotypic characterization, with the latter consisting of nucleotide sequence analyses of the 16S rRNA gene plus three housekeeping genes,
rpoB, infB and recN.
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Affiliation(s)
- Michika Ishihara
- Saitama Prefectural Chuo Livestock Hygiene Service Center.,Present address: Saitama Prefectural Kawagoe Livestock Hygiene Service Center
| | - Yuka Yamazaki
- Saitama Prefectural Chuo Livestock Hygiene Service Center.,Present address: Saitama Institute of Public Health
| | - Ken Katsuda
- The National Institute of Animal Health, NARO
| | - Hiroya Ito
- The National Institute of Animal Health, NARO.,Present address: The National Institute of Animal Health, NARO
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Makrai L, Sárközi R, Fodor L. Carbon source utilisation and evaluation of the Biolog system in the identification of Actinobacillus pleuropneumoniae. Acta Vet Hung 2019; 67:327-337. [PMID: 31549548 DOI: 10.1556/004.2019.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Sixty-eight Actinobacillus pleuropneumoniae strains were isolated from porcine acute pleuropneumonia cases from different parts of Hungary between 2000 and 2014. A total of 41 isolates were identified as A. pleuropneumoniae bio-type I and 27 strains as biotype II based on cultural, morphological and biochemical characteristics. The aim of this study was to evaluate metabolic fingerprinting in the species-level identification of A. pleuropneumoniae isolates. Utilisation of carbon sources by these field isolates and six reference strains was characterised by the Biolog system (GN2 Microplate, MicroLog3 Version 4.20.05 software). Twenty-nine field strains were correctly identified by the Biolog system as A. pleuropneumoniae, 36 strains as A. lignieresii, two strains as H. paraphrohaemolyticus and one strain as A. equuli after 24 h of incubation. Among the six A. pleuropneumoniae reference strains the Biolog system identified one strain as A. pleuropneumoniae, four as A. lignieresii and one as H. paraphrohaemolyticus. There was no correlation between biotypes and serotypes of A. pleuropneumoniae and the carbon source utilisation pattern and species identification by the Biolog system. our data indicate that the efficacy of the Biolog system used here could be improved by including phenotypes of more A. pleuropneumoniae strains representing a wider geographical occurrence into the database.
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Affiliation(s)
- László Makrai
- 1Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, H-1581 Budapest, P.O. Box 22, Hungary
| | - Rita Sárközi
- 1Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, H-1581 Budapest, P.O. Box 22, Hungary
| | - László Fodor
- 1Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, H-1581 Budapest, P.O. Box 22, Hungary
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Sugie K, Komatsu T, Watando E, Inaba N, Kato K, Takamatsu D, Ito H, Shibahara T. Septicemic Actinobacillus suis infection in a neonatal piglet with multifocal necrotic glossitis. J Vet Med Sci 2019; 81:274-278. [PMID: 30606907 PMCID: PMC6395219 DOI: 10.1292/jvms.18-0630] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Five-day-old neonatal piglets presented with debilitation and ananastasia. At the
necropsy of one piglet, the apex of the tongue was found to be discolored dark red, and
disseminated white foci were found on the cut surface. Many white foci were also found in
the lungs and on the serosa of the liver and spleen. Histopathological findings revealed
multifocal necrotic glossitis and pneumonia with Gram-negative bacilli. The bacilli were
identified as Actinobacillus suis through immunohistochemical,
biochemical, and genetic tests, including 16S rRNA gene sequencing. Although A.
suis usually causes inflammation in thoracic and abdominal organs, lesions were
also found in the tongue in the present case. This study is the first report of glossitis
caused by A. suis.
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Affiliation(s)
- Kennosuke Sugie
- Aichi Prefectural Chuo Livestock Hygiene Service Center, 1-306 Jizono, Miaicho, Okazaki, Aichi 444-0805, Japan
| | - Tetsuya Komatsu
- Aichi Prefectural Chuo Livestock Hygiene Service Center, 1-306 Jizono, Miaicho, Okazaki, Aichi 444-0805, Japan
| | - Eri Watando
- Aichi Prefectural Chuo Livestock Hygiene Service Center, 1-306 Jizono, Miaicho, Okazaki, Aichi 444-0805, Japan
| | - Nanami Inaba
- Aichi Prefectural Chuo Livestock Hygiene Service Center, 1-306 Jizono, Miaicho, Okazaki, Aichi 444-0805, Japan
| | - Kiyoko Kato
- Tochigi Prefectural Central Livestock Health and Hygiene Center, 6-8 Hiraide-kogyodanchi, Utsunomiya, Tochigi 321-0905, Japan
| | - Daisuke Takamatsu
- Division of Bacterial and Parasitic Disease, National Institute of Animal Health, National Agriculture and Food Research Organization, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan.,The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
| | - Hiroya Ito
- Division of Bacterial and Parasitic Disease, National Institute of Animal Health, National Agriculture and Food Research Organization, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan
| | - Tomoyuki Shibahara
- Division of Pathology and Pathophysiology, National Institute of Animal Health, National Agriculture and Food Research Organization, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan.,Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-oraikita, Izumisano, Osaka 598-8531, Japan
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