Key Phrases Used in Microbiology Lab Reports

By Acharya Tankeshwar •  Updated: 05/28/22 •  1 min read

Gram-positive Bacteria

Fig: Characteristic shape of S. aureus and V. cholerae
Fig: Characteristic shape of S. aureus and V. cholerae
  1. “Gram-positive cocci in clusters” may suggest Staphyloccocus species.
  2. “Gram-positive cocci in pairs and chains” may suggest Streptococcus species or Enterococcus species.
  3. “Gram-positive diplococci” may suggest Streptococcus pneumoniae.
  4. “Branching Gram-positive rods, modified acid-fast stain positive” may suggest Nocardia species.

Gram-negative Bacteria

Candida albicans: Germ Tube Positive
Candida albicans: Germ-tube positive


  1. “Acid-fast bacilli” or “AFB” may suggest Mycobacterium species.
  2. “Germ-tube negative yeast” suggests non-Candida albicans yeasts.
  3. Candida albicans is a germ-tube-positive yeast.
  4. “Budding yeast” suggests yeast.
  5. “Fungal elements or hyphal elements” suggests mold.


Antimicrobial Guidebook University of Nebraska Medical Center

Acharya Tankeshwar

Hello, thank you for visiting my blog. I am Tankeshwar Acharya. Blogging is my passion. As an asst. professor, I am teaching microbiology and immunology to medical and nursing students at PAHS, Nepal. I have been working as a microbiologist at Patan hospital for more than 10 years.

One response to “Key Phrases Used in Microbiology Lab Reports”

  1. peace says:

    thank you…..

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