Abstract
An agarose gel based single enzyme AFLP method using EcoR1 digestion of Listeria monocytogenes DNA was developed for epidemiological typing. The method was evaluated with 84 L. monocytogenes cultures, and results were compared with those obtained with serotyping, phage-typing and cadmium and arsenic resistance typing. The AFLP method was reproducible and 14 different banding patterns comprising between five and eight DNA fragments were produced. All except two of the AFLP patterns were serotype specific. Different AFLP patterns were recognised within serovar 4b (four patterns), 1/2a (two patterns), 1/2b (six patterns): single patterns were obtained from cultures of serovars 1/2c, 3a, 3b and 3c. There were associations with AFLP results and those from phage-typing and cadmium and arsenic resistance typing, although each method showed some independence. This preliminary evaluation suggests that this AFLP method will be useful for epidemiological typing of L. monocytogenes.
| Original language | English |
|---|---|
| Pages (from-to) | 456-461 |
| Number of pages | 6 |
| Journal | Systematic and Applied Microbiology |
| Volume | 25 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Oct 2002 |
Bibliographical note
Funding Information:Financial support for author MMG was provided by a PhD fellowship within the “III Quadro Comunitário de Apoio” administered by the National Board for Scientific and Technological Investigation (FCT, Portugal). All of this work was performed in the PHLS Division of Gastrointestinal Infections (London, UK) where the expert assistance of O Mpamugo and Dr. T Peters is gratefully acknowledged.
Keywords
- Amplified fragment length polymorphism (AFLP)
- Epidemiological typing
- Listeria monocytogenes