Journals / Turkish Journal of Veterinary and Animal Sciences / 2006 / Cilt: 30 - Sayı: 1

Characterization of Footrot Bacteria Dichelobacter nodosus Using PCR Amplification and DNA Sequence Analysis

Pages
53–59
Publication Date
2006-01-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

These sequences of D. nodosus fimA gene from NZ were genetically different from previously reported strains in the GenBank (NCBI) and commercial vaccine strains.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Dichelobacter nodosus is an essential causative agent of footrot in ruminants, particularly in sheep, goats and cattle.
📊
Key Findings & Data:In this study, more than 100 footrot samples were collected from 4 different farming regions in New Zealand (NZ).
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Conclusion & Impact:These sequences of D. nodosus fimA gene from NZ were genetically different from previously reported strains in the GenBank (NCBI) and commercial vaccine strains.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Footrot · Dichelobacter nodosus · fimA gene

Abstract

Dichelobacter nodosus is an essential causative agent of footrot in ruminants, particularly in sheep, goats and cattle. In this study, more than 100 footrot samples were collected from 4 different farming regions in New Zealand (NZ). Selective media were chosen and isolation and routine growth conditions were optimized for NZ D. nodosus serotypes. Approximately 1000 primary plates were anaerobically subcultured several times and examined with Gram staining in order to detect single colonies of D. nodosus. Both the variable region and a part of the conserved region of fimbrial subunit gene (fimA) were amplified from bacterial DNA using polymerase chain reaction (PCR). On the basis of PCR and DNA sequencing, 6 new D. nodosus isolates were identified and characterized from NZ. These sequences of D. nodosus fimA gene from NZ were genetically different from previously reported strains in the GenBank (NCBI) and commercial vaccine strains.

Özet

Dichelobacter nodosus is an essential causative agent of footrot in ruminants, particularly in sheep, goats and cattle. In this study, more than 100 footrot samples were collected from 4 different farming regions in New Zealand (NZ). Selective media were chosen and isolation and routine growth conditions were optimized for NZ D. nodosus serotypes. Approximately 1000 primary plates were anaerobically subcultured several times and examined with Gram staining in order to detect single colonies of D. nodosus. Both the variable region and a part of the conserved region of fimbrial subunit gene (fimA) were amplified from bacterial DNA using polymerase chain reaction (PCR). On the basis of PCR and DNA sequencing, 6 new D. nodosus isolates were identified and characterized from NZ. These sequences of D. nodosus fimA gene from NZ were genetically different from previously reported strains in the GenBank (NCBI) and commercial vaccine strains.

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Cite This Article

ÇAĞATAY, İ. T., HICKFORD, J. G. H. (2006). Characterization of Footrot Bacteria Dichelobacter nodosus Using PCR Amplification and DNA Sequence Analysis. Turkish Journal of Veterinary and Animal Sciences, Cilt: 30 - Sayı: 1, 53–59. https://ajindex.com/articles/122488

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References (7)

  1. Gradin, J.L., Schmitz, J.A.: Selective medium for isolation of Bacteroides nodosus. J. Clin. Microbiol., 1977; 6: 298-302. 6. Skerman, T.M.: Isolation and identification of Bacteroides nodosus. In: Egerton, J.R., Yong, W.K., Riffkin, G.G. (eds.). Footrot and Foot Abscess of Ruminants. CRC Press Inc., Boca Raton, Florida. 1989; 85-104. 7. Depiazzi, L.J., Richards, R.B., Henderson, J., Rood, J.I., Palmer, M., Penhale, W.J.: Characterization of virulent and benign strains of Bacteroides nodosus. Vet. Microbiol., 1991; 26: 151-160.
  2. Liu, D., Webber, J.: A polymerase chain reaction assay for improved determination of virulence of Dichelobacter nodosus, the specific causative pathogen for ovine footrot. Vet. Microbiol., 1995; 43: 197-207. 9. Hobbs, M., Dalrymple, B.P., Cox, P.T., Livingstone, S.P., Delaney, S.F., Mattick, J.S.: Organization of the fimbrial gene region of Bacteroides nodosus: class I and class II strains. Mol. Microbiol., 1991; 5: 543-560.
  3. Mattick, J.S., Anderson, B.J., Cox, P.T., Dalrymple, B.P., Bills, M.M., Hobbs, M., Egerton, J.R.: Gene sequences and comparison of the fimbrial subunits representative of Bacteroides nodosus serotypes A to I: class I and class II strains. Mol. Microbiol., 1991; 5: 561-573.
  4. Billington, S.J., Johnston, J.L., Rood, J.I.: Virulence regions and virulence factors of the ovine footrot pathogen,Dichelobacter nodosus. FEMS Microbiol. Lett., 1996; 145: 147-156.
  5. Zhou, H., Hickford, J.G.H.: Extensive diversity in New Zealand Dichelobacter nodosus strains from infected sheep and goats. Vet. Microbiol., 2000; 71: 113-123.
  6. Thorley, C.M.: A simplified method for the isolation of Bacteroides nodosus from ovine footrot and studies on its colony morphology and serology. J. Appl. Bacteriol., 1976; 40: 301- 309. Egerton, J.R., Roberts, D.S., Parsonson, I.M.: The aetiology and pathogenesis of ovine footrot. J. Comp. Pathol., 1969; 79: 207- 216. Cox, P., Rachdawong, S., Egerton, J.R.: Confirmation by PCR of the diagnosis of Dichelobacter nodosus infection in sheep using lesion material: implications for vaccines and epidemiology. Proc. Aust. Biochem. Soc., 1990; 22: TS31-33. Anderson, B.J., Bills, M.M., Egerton, J.R., Mattick, J.S.: Cloning and expression in Escherichia coli of the gene encoding the structural subunit of Bacteroides nodosus fimbriae. J. Bacteriol., 1984; 160: 748-754.
  7. Liu, D., Roycroft, C., Samuel, J., Webber, J.: A retrospective study of clinical and laboratory characteristics of ovine footrot. Vet Microbiol., 1994;