<prompt> Corynebacterium diphtheriae can be grown within 6-8 hours on:Potassium tellurite media with ironMcConkeys agarDorset egg mediumLoefflers serum slope  <response>: On Loefflers serum slope, C. diphtheriae grows after 46 hours at 37C producing small, circular, and white opaque colonies. If no colonies are seen, the medium is reincubated further for 24 hours.Parija SC. Textbook of Microbiology Immunology. Elsevier Health Sciences; 2014. Page:218 