A study ofPasteurella strains from animal sources

Heyl, J. G.

doi:10.1007/bf02046040

Cited by 27 publications

(17 citation statements)

References 7 publications

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“…(Stableforth & Galloway, 1959;Steel & Midgley, 1962;Smith & Thal, 1965.) Four taxa were included at first -Pasteurella multocida (Jones, 1921 ;Smith, 1958 ;Talbot & Sneath, 1960;Watt, 1969, P. haemolytica (Newsom & Cross, 1932Biberstein, Myer & Kennedy, 1958;Biberstein, Gills & Knight, 1960;Smith, 1961;BohiCek & Mrhz, 1967), P. pneumotropica (Jawetz, 1950) and P. ureae (Henriksen & Jyssum, 1960Henriksen, 1961Omland & Henriksen, 1961 ;Jones, 1962;Jones & O'Connor, 1962;Heyl, 1963;Wang & Haiby, 1966) Strains of this group were difficult to identify and identification was more successful when Pasteurella multocida was divided into two biotypes and P. haemolytica into biotype and biotype T. Of the 13 strains of P. ureae, 12 (92 %) were identified correctly and one failed to identify. Of the six strains of P. pneumotropica, five (83 %) were identified correctly, confirming the separation of this taxon from P. multocida.…”

Section: Separate Taxamentioning

confidence: 99%

Identification of Bacteria by Computer: Identification of Reference Strains

Bascomb

Lapage

Curtis

et al. 1973

Journal of General Microbiology

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SUMMARYThe results of the identification of 1079 reference strains of Gram-negative, aerobic, rod-shaped bacteria by a probabilistic method in a computer are given.Comparison of identification by conventional methods and by computer showed that 90.8 % of fermentative and 82.1 % of non-fermentative strains could be identified on the best available probability matrix. Many of these strains were atypical and had caused difficulty in identification in the medical diagnostic laboratory. The implications of various factors in successful computer identification are discussed and the results are given for each taxon by genus and species.

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Section: Separate Taxamentioning

confidence: 99%

Identification of Bacteria by Computer: Identification of Reference Strains

Bascomb

Lapage

Curtis

et al. 1973

Journal of General Microbiology

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“…These include oxidase negative (Henriksen & Jyssum, 1961;Simmons & Simpson, 1977), indole negative (Hooper & Sebesteny, 1974;Simmons & Simpson, 1977;Schulz et al 1977), ornithine negative (Cowan, 1974) and mannitol positive (Henriksen & Jyssum, 1961;Hoag et al 1962;Simmons & Simpson, 1977). However, no other sucrose negative reports were found in the literature although Heyl (1963) reported a delayed sucrose reaction only after 48 h. Variation in colony colour in indole negative strains, noted previously by Hooper & Sebesteny (1974) and Simmons & Simpson (1977), was not observed.…”

Section: Discussionmentioning

confidence: 53%

Isolation ofPasteurella pneumotropicafrom rodents in South Africa

Shepherd¹,

Leman²,

Barnett³

1982

J. Hyg.

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SUMMARYFour thousand, five hundred and sixteen rodents of 27 species were captured in widely separated localities in South Africa over a period of ten years. Samples of spleen, lung, heart, liver and rectal tissue with faeces were tested for the presence ofzoonotic bacteria and 109 isolations ofPasteurella pneumotropica were made from 11 species. Latent infection with the organism was found to be widespread although there were temporal fluctuations in prevalence. Field and laboratory evidence suggest that P. pneumotropica may be associated with, but not the primary cause of, rodent epizootics in the wild.

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“…Reference strains CCUG 998 and CCUG 26453 of P. pneumotropica classified as biotype Heyl were divided into 2 groups, a-1 and a-3, indicating that the ARDRA typing more accurately shows the property of P. pneumotropica than that of biotypes. Although to date P. pneumotropica typing has been examined based on carbon source utilization (15), the ARDRA typing of P. pneumotropica might be more useful because it may correlate the phylogenetic positions in the family Pasteurellaceae.…”

Section: Discussionmentioning

confidence: 99%

Molecular Typing of Pasteurella pneumotropica Isolated from Rodents by Amplified 16S Ribosomal DNA Restriction Analysis and Pulsed‐Field Gel Electrophoresis

Sasaki

Kawamoto

Okiyama

et al. 2006

Microbiology and Immunology

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Pasteurella pneumotropica, a ubiquitous Gram-negative bacterium, is an opportunistic pathogen for rodents (28). This agent can be frequently isolated from the upper respiratory tract, lungs, vagina, trachea and other digestive organs. P. pneumotropica does not significantly affect the health of immunocompetent animals. However, immunodeficient animals infected with P. pneumotropica develop severe or lethal pneumonia (1,8,13,25). Chapes et al. (8) reported that P. pneumotropica induced lethal pneumonia in mice lacking alleles for MHCII, Tlr4, and Nramp1. Furthermore, Hart et al. (13) reported that Toll-like receptor 4 positive macrophages were indispensable for defense against the P. pneumotropica infections in mice. Therefore, control and monitoring of P. pneumotropica infections are requisites for managing the immunodeficient animals.P. pneumotropica was first characterized by Jawetz (17). Heyl (15) then proposed the biotype of P. pneumotropica based on utilization of carbon sources, and P. pneumotropica was reclassified as P. pneumotropica biotypes Jawetz and Heyl (27). Subsequently, Boot and Bisgaard (6) reported the detailed biochemical variations of P. pneumotropica including wild type strains. Further, Boot et al. (7) reported that the P. pneumotropica isolates could be differentiated by haemagglutinating properties of the isolates. However, host variation and the some phenotypic characteristics of the P. pneu- Abstract: A total of 52 isolates of Pasteurella pneumotropica obtained from rodents were examined for their genetic heterogeneity. On the basis of DNA restriction analysis, including amplified 16S ribosomal DNA restriction analysis (ARDRA) and pulsed-field gel electrophoresis (PFGE), differences were identified among the isolates. ARDRA typing with HaeIII revealed 4 different banding patterns of the P. pneumotropica isolates. Eighty-two percent of the 23 isolates identified as a-1 were derived from mice, whereas all the isolates identified as a-3 were derived from rats. Most of the isolates, which showed hemolytic activity on blood agar, obtained from mice and rats, were identified as a-2 and a-4, respectively. By restriction analysis of genomic DNA, ApaI and NotI digestion differentiated 9 variants and an undiscriminating group. However, no close relation with regard to the phenotypic characteristics was observed among the variants. The isolates identified as a-2 and a-4 could not be distinguished by PFGE analysis. DNA restriction analysis revealed that the genetic diversity of the P. pneumotropica isolates was more complex than the phenotypic characteristics among the species, and that at least the P. pneumotropica isolates were clearly differentiated into 4 groups by ARDRA typing with HaeIII.

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A study ofPasteurella strains from animal sources

Cited by 27 publications

References 7 publications

Identification of Bacteria by Computer: Identification of Reference Strains

Identification of Bacteria by Computer: Identification of Reference Strains

Isolation ofPasteurella pneumotropicafrom rodents in South Africa

Molecular Typing of Pasteurella pneumotropica Isolated from Rodents by Amplified 16S Ribosomal DNA Restriction Analysis and Pulsed‐Field Gel Electrophoresis

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