Gram-negative Bacilli of Klebsiella pneumoniae

  • Klebsiella pneumoniae is a Gram-negative, non-motile, encapsulated, lactose fermenting, facultative anaerobic, rod shaped bacterium found in the normal flora of the mouth, skin, and intestines.
  • It is clinically the most important member of the Klebsiella genus of Enterobacteriaceae.
  • urea positive (blue color of the slope), metabolise glucose with production of gas (bubbles under a piece of glass – in detail left down side of each plate) and is lactose positive (but on Endo agar its colonies often remain quite pale).
  • Unlike some similarly looking strains of Enterobacter cloacae is K. pneumoniae lysine “+”, ornithine “-“, arginine “-” (E. cloacae lysine “-“, ornithine “+”, arginine “+”).

 

Klebsiella pneumoniae Grown on Nutrient Agar

Klebsiella pneumoniae Grown on Nutrient Agar

Klebsiella pneuomoniae mucus colonies

Klebsiella pneuomoniae mucus colonies

Klebsiella pneuomoniae on Blood agar on the left and Macconkey agar on the Right

Klebsiella pneuomoniae on Blood agar on the left and Macconkey agar on the Right

lactose fermentation gives pink color on Macconkey

lactose fermentation gives pink color on Macconkey

TSI, Citrate and Urea - Klebsiella pneumoniae

Share This Post

Related Articles

Leave a Reply

You must be Logged in to post comment.

© 2019 Medical Laboratories. All rights reserved. Site Admin · Entries RSS · Comments RSS
Powered by WordPress · Powered by Medical Labs