To get an indication of the effect of tetracycline on growth onset of E. coli, the time needed for the different strains to reach an OD value of 0.01 at the various tetracycline concentrations was ana- lysed. Growth onset values were determined as the first time value at which OD was ...
The author employed the blood agar plate culture and the peptone water culture methods for studying the haemolytic property of a variety of different strains of Escherichia coli isolated from man and domestic animals. The blood agar plate method was not reliable for the determination of true haemo...
Escherichia coli:Escherichia coli;Escherichia coli:Detection of Enterotoxins ofE. coli;Microbiota of the Intestine:The Natural Microflora of Humans;Escherichia coli:PathogenicE. coli(Introduction). View chapterExplore book Escherichia coli: virulence, stress response and resistance ...
The E. coli produce diffused turbidity in both cultures, and on blood agar, colonies are usually 1 to 3 mm. The colony morphology may vary with rough colonies larger with irregular margins and smooth colonies raised, wet-looking with well-demarcated margins (Nolan et al., 2020). Generally,...
Shiga toxin 2a and Enteroaggregative Escherichia coli--a deadly combination. Escherichia coliEnterobacteriaceaeEsch.er.i' chi.a . M.L. fem. n. Escherichia named after Theodor Escherich, who isolated the type species of the genus... Nadia Boisen,Angela R Melton-Celsa,F Scheutz,... - Taylor...
coli are gray, smooth, and often beta﹉emolytic on blood agar. Hemolytic colonies isolated from urine specimens usually suggest more virulent strains. MacConkey agar and either Hektoen enteric or xylose lysine deoxycholate agar are recommended for optimal isolation of Shigella. The genus Salmonella ...
coli to maintain the first resistance during this process depended on the combination of antibiotics used. The maintenance of mutations associated with resistance to the first antibiotic did not always predict the residual MIC for that compound. Conclusions: In general, the data presented here ...
Escherichia coli is a Gram-negative, usually motile, nonspore forming, facultative anaerobic bacillus. Most strains ferment lactose and thus appear as pink colonies when growing on selective media such as MacConkey agar, although up to 10% may not ferment lactose or may be slow lactose fermenter...
coli from foods are de... RM Blood,GDW Curtis 被引量: 0发表: 1995年 Update on media for isolation of Enterobacteriaceae from foods Testing for 'total' Enterobacteriaceae, coliforms and Escherichia coli as marker organisms in foods and detection of specific pathogens of the family Enter... ED...
Stx2e-producing Escherichia coli Gayeon Won†, Tae Hoon Kim† and John Hwa Lee* Abstract Background: Salmonella Typhimurium (S. Typhimurium) inactivated by a regulated autolysis system was genetically engineered to express the homo-pentameric B subunit of Shiga toxin 2e (Stx2eB) on its ...