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Home / Equine Research Bank / J Clin Microbiol / Pasteurella caballi, a new species from equine clinical spec...
Journal of clinical microbiology1989; 27(10); 2169-2174; doi: 10.1128/jcm.27.10.2169-2174.1989

Pasteurella caballi, a new species from equine clinical specimens.

Abstract: The name Pasteurella caballi is proposed for a group of organisms represented by 29 strains isolated from respiratory and other infections in horses. P. caballi strains are gram-negative, oxidase-positive, nonmotile, fermentative rods with the key characteristics of the genus Pasteurella. These strains differed from other Pasteurella species in that all were aerogenic and catalase negative, and some strains produced acid from myo-inositol and L-rhamnose. The levels of DNA relatedness of 28 P. caballi strains with labeled DNA from the proposed type strain averaged 91 and 85% (hydroxyapatite method at 55 and 70 degrees C). P. caballi was 13 to 53% related to strains representing 22 other species of the family Pasteurellaceae. The guanine-plus-cytosine content of the DNA of four strains was 41 to 42 mol%. The type strain is 83851 (=ATCC 49197).
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Publication Date: 1989-10-01 PubMed ID: 2584369PubMed Central: PMC266987DOI: 10.1128/jcm.27.10.2169-2174.1989Google Scholar: Lookup
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Summary

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This research article introduces a new bacterial species called Pasteurella caballi, which was found in 29 strains isolated from infected horses. Its characteristics differentiate it from other known Pasteurella species.

Isolation and Identification of Pasteurella caballi

  • The study introduces a new bacterial species discovered in horses. This species, named Pasteurella caballi, was found in 29 different strains isolated from the respiratory and other infections in horses.
  • Pasteurella caballi were found to be gram-negative, oxidase-positive, nonmotile, fermentative rods. These are significant characteristics of the genus Pasteurella, indicating that they belong to this species group.

Differentiation from Other Pasteurella Species

  • Pasteurella caballi, while sharing some common traits with other Pasteurella species, showed differences that warranted its identification as a new species. Its key distinguishing features include being aerogenic and catalase negative, which means that they produce gases in aerobic conditions and don’t produce the enzyme catalase respectively.
  • Further, some Pasteurella caballi strains were found to produce acid when subjected to specific sugars, or carbohydrates, such as myo-inositol and L-rhamnose. This ability to metabolize these carbohydrates separates them from other Pasteurella species, which do not share this trait.

DNA Analysis of Pasteurella caballi

  • The levels of DNA relatedness were also studied to find similarities and differences between Pasteurella caballi and other variants. A high degree of similarity was found within Pasteurella caballi strains with 91% and 85% of strains being related at 55 and 70 degrees Celsius through hydroxyapatite method. However, there were only 13% to 53% similarities found when compared to strains from 22 other species of the Pasteurellaceae family.
  • The guanine-plus-cytosine content, which demonstrates the bacterial genetic composition, was found to be 41 to 42 mol%. This information further reinforces the genetic uniqueness of Pasteurella caballi when compared to other Pasteurella species.

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Specimen Information

  • The type strain of Pasteurella caballi identified in this study was given the name 83851 (or ATCC 49197). The identification and characterization of this type strain are critical for future reference and comparisons in microbiological research.

Cite This Article

APA
Schlater LK, Brenner DJ, Steigerwalt AG, Moss CW, Lambert MA, Packer RA. (1989). Pasteurella caballi, a new species from equine clinical specimens. J Clin Microbiol, 27(10), 2169-2174. https://doi.org/10.1128/jcm.27.10.2169-2174.1989

Publication

Journal of clinical microbiology
ISSN: 0095-1137
NlmUniqueID: 7505564
Country: United States
Language: English
Volume: 27
Issue: 10
Pages: 2169-2174

Researcher Affiliations

Schlater, L K
  • National Veterinary Services Laboratories, U.S. Department of Agriculture, Ames, Iowa 50010.
Brenner, D J
    Steigerwalt, A G
      Moss, C W
        Lambert, M A
          Packer, R A

            MeSH Terms

            • Animals
            • Base Composition
            • DNA / analysis
            • DNA / genetics
            • Fatty Acids / analysis
            • Female
            • Horses / microbiology
            • Male
            • Nucleic Acid Hybridization
            • Pasteurella / classification
            • Pasteurella / genetics
            • Pasteurella / isolation & purification
            • Phenotype
            • Sequence Homology, Nucleic Acid

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            Citations

            This article has been cited 8 times.
            1. Savu AN, Schoenbrunner AR, Politi R, Janis JE. Practical Review of the Management of Animal Bites.. Plast Reconstr Surg Glob Open 2021 Sep;9(9):e3778.
              doi: 10.1097/GOX.0000000000003778pubmed: 34522565google scholar: lookup
            2. Valseth K, Nesbø CL, Easterday WR, Turner WC, Olsen JS, Stenseth NC, Haverkamp THA. Temporal dynamics in microbial soil communities at anthrax carcass sites.. BMC Microbiol 2017 Sep 26;17(1):206.
              doi: 10.1186/s12866-017-1111-6pubmed: 28950879google scholar: lookup
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              doi: 10.1128/JCM.42.12.5542-5548.2004pubmed: 15583279google scholar: lookup
            5. Alexandrino M, Knief C, Lipski A. Stable-isotope-based labeling of styrene-degrading microorganisms in biofilters.. Appl Environ Microbiol 2001 Oct;67(10):4796-804.
              doi: 10.1128/AEM.67.10.4796-4804.2001pubmed: 11571187google scholar: lookup
            6. Moss CW, Daneshvar MI, Hollis DG. Biochemical characteristics and fatty acid composition of Gilardi rod group 1 bacteria.. J Clin Microbiol 1993 Mar;31(3):689-91.
              doi: 10.1128/jcm.31.3.689-691.1993pubmed: 8384629google scholar: lookup
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              doi: 10.1128/jcm.29.11.2535-2538.1991pubmed: 1774260google scholar: lookup
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