Difference between Anthrax Bacilli and Anthracoid Bacilli 4.77/5 (31)

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Difference between Anthrax Bacilli and Anthracoid Bacilli

Difference between Anthrax Bacilli and Anthracoid Bacilli



Anthrax Bacilli

Anthracoid Bacilli

1.MotilityNon-MotileGenerally Motile
3.ShapeGrow in long chainsGrow in short chains
4.Medusa Head ColonyPresentNot Present
5.Growth in Penicillin Agar (10 units/ml)No GrowthGrow Usually
6.HemolysisHemolysis absent or weak.Usually well marked
7.Gelatin LiquefactionSlow Gelatin LiquefactionRapid Gelatin Liquefaction
8.TurbidityNo Turbidity in brothTurbidity usually
9.Salicin FermentationNegativeUsually Positive
10.Growth at 45°CNo GrowthGrows usually
11.Chloral HydrateGrowth inhibited by  Chloral HydrateNot Inhibited
12.Gamma PhageSusceptible to gamma phageNot susceptible
13.PathogenesisPathogenic to laboratory animalsNot pathogenic

Difference between Anthrax Bacilli and Anthracoid Bacilli

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The Author

Sagar Aryal

Sagar Aryal

I am Sagar Aryal, a passionate Microbiologist and the Scientific Blogger. I did my Master's Degree in Medical Microbiology and currently working as a Teaching Assistant at St. Xavier's College, Kathmandu, Nepal. I am particularly interested in research related to Medical Microbiology and Virology. Find me on Facebook, Twitter or Linkedin !!!


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  1. Thank you very much sir, am glad to get tap this knowledge

  2. I just landed on your site and was excited when I saw Nepal’s flag. Scrolled down and found you were in fact from Nepal. I am micro/molecular biologist working for Texas Department for State Health Services.
    Your site is helpful.

    1. WooW, maam it was my pleasure that you liked my website. Thanks.

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