Warianty tytułu
Języki publikacji
Abstrakty
A PCR-based procedure for detection of C. botulinum C and D in corn silage samples was validated. During the validation, method specificity, sensitivity, and accuracy were determined according to PN - EN ISO 16140:2004. Additionally, the specificity of the validated methods was proved by sequence analysis of PCR products obtained from examination of samples connected with botulism cases in cattle and mallard ducks. Limit of detection was estimated according to the Spearman - Kärber formula and expressed as LOD₅₀. The obtained results showed that a 100% specificity was achieved. The sequencing of PCR products revealed 99% identity with sequences of bont/C and bont/D genes deposited in the GenBank. The sensitivity value ranged from 63.3% for C. botulinum type C to 75% for type D. The accuracy value varied from 72% for type C to 81.3% for type D. LOD₅₀ was estimated at the levels of 0.272 (0. D 188-0395) spore/g for type C and 0.17 (0.1 -0.289) spore/g for type D. The described PCR-based procedure enabled detection of C. botulinum C and D at the stage of liquid culture. This makes examination of feed samples possible without isolation process. The presented procedure could support the diagnosis of botulism by faster and specific laboratory examination process.
Słowa kluczowe
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Rocznik
Tom
Numer
Opis fizyczny
p.393-398,ref.
Twórcy
autor
- Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24-100 Pulawy, Poland
autor
- Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24-100 Pulawy, Poland
autor
- Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24-100 Pulawy, Poland
autor
- Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24-100 Pulawy, Poland
Bibliografia
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- 2. Anon.: Polish Standard: Microbiology of food and animal feeding stuffs - Protocol for the validation of alternative methods. PN-EN ISO 16140:2004.
- 3. Barash J.R., Arnon S.S.: A novel strain of Clostridium botulinum that produces type B and type H botulinum toxins. J Infect Dis 2013, doi: 10.1093/infdis/jit449.
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- 6. Fach P., Perelle F., Dilasser J., Grout C., Dargaignaratz L., Botella J.M., Gourreau F., Carlin S., Popoff M.R., Broussolle V.: Detection by PCR-enzyme-linked immunosorbent assay of Clostridium botulinum in fish and environmental samples from a coastal area in Northern France. Appl Environ Microbiol 2002, 68, 5870-5876.
- 7. Fletcher G.C., Youssef J.F., Lu G.: Selecting methods for determining the presence of BoNT genes in New Zealand marine sediments. Crop & Food Research Confidential Report. New Zealand, 2008.
- 8. Grenda T., Kukier E., Sieradzki Z., Goldsztejn M., Kwiatek K.: In - house validation of multiplex PCR method for detection of Clostridium botulinum in food and feed. Bull Vet Inst Pulawy 2012, 56, 155-160.
- 9. Grenda T., Kwiatek K.: Application of molecular biology methods to the diagnosis of botulism in mallard ducks. Bull Vet Inst Pulawy 2009, 53, 365-368.
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- 14. Krüger M., Große-Herrenthey A., Schrödl W., Gerlach A., Rodloff A.: Visceral botulism at dairy farms in Schleswig Holstein, Germany : prevalence of Clostridium botulinum in feces of cows, in animal feeds, in feces of the farmers, and in house dust. Anaerobe 2012, 2, 221-223.
- 15. Lindström M., Keto R., Markkula A., Nevas M., Hielm S., Korkeala H.: Multiplex PCR assay for detection and identification of Clostridium botulinum types A, B, E, and F in food and fecal material. Appl Environ Microbiol 2001, 67, 5694-5699.
- 16. Moriishi K., Koura M., Abe N., Fuji N., Fujinaga Y., Inoue K., Ogumad K.: Mosaic structures of neurotoxins produced from Clostridium botulinum types C and D organisms. Biochim Biophys Acta 1996, 1307, 123-126.
- 17. Nakamura K., Kohda T., Shibata Y., Tsukamoto K., Arimitsu H., Hayashi M., Mukamoto M., Sasakawa N., Kozaki S.: Unique biological activity of botulinum D/C mosaic neurotoxin in murine species. Infect Immun 2012, 80, 2886-2893.
- 18. Raphael B.H., Anreadis J.D.: Real-time PCR detection of the nontoxic nonhemagglutinin gene as a rapid screening method for bacterial isolates harboring the botulinum neurotoxin (A-G) gene complex. J Microbiol Meth 2007, 71, 343-346.
- 19. Rodloff A.C., Krüger M.: Chronic Clostridium botulinum infections in farmers. Anaerobe 2012, 2, 226-228.
- 20. Saeed E.M.A.: Studies on isolation and identification of Clostridium botulinum investigating field samples specially from equine grass sickness cases. Doctoral dissertation, Faculty of Agriculture, Goettingen University, Goettingen, 2004.
- 21. Takeshi K., Fujinaga Y., Inoue K., Nakajima H., Oguma K., Ueno T., Sunagawa H., Ohyama T.: Simple method for detection of Clostridium botulinum type A to F neurotoxin genes by polymerase chain reaction. Microbiol Immunol 1996, 40, 5-11.
- 22. Woudstra C., Skarin H., Anniballi F., Fenicia L., Bano L., Drigo I., Koene M., Bäyon-Auboyer M.H., Buffereau J.P., Medici De D., Fach P.: Neurotoxin gene profiling of Clostridium botulinum types C and D native to different countries within Europe. Appl Environ Microbiol 2012, 78, 3120-3127.
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Typ dokumentu
Bibliografia
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