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DETECTION OF SOME VIRULENCE FACTORS IN Serratia marcesens | ||
| AL-TAQANI | ||
| Article 1, Volume 18, Issue 1, 2005, Pages 1-4 | ||
| Author | ||
| Mohammed Sabri Abdul-Razzak Al-Saeed | ||
| Abstract | ||
| Some virulence factors were studied for the two strains of Serratia marcesens. Antibiogram profile shows that both strains are resistant to Ampicillin and sensitive to Cefotaxime and Gentamicin, where as only one is resistant to Cephalexin. It was found that both strains are able to produce colonization factor antigen type 1 (CFA/1) in the presence of mannose sugar, but none of them shows the ability to produce (CFA/3). Colony hybridization technique reveals that none of the strains has showed hybridized signals when heat-stable enterotoxin or heat-labile enterotoxin gene are used separately as a probes. Moreover, none of the strains is able to produce uronic acid extracellulary or hemmolysin on both rabbit blood or human blood agar at 37°C. | ||
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