Question

Microbial source of antibiotic terramycin is -------------.

• A. Streptomyces venezuelae
• B. Streptomyces griseus
• C. Streptomyces rimosus
• D. Streptomyces erythreus

Hint:

Terramycin is oxytetracycline; recall the Streptomyces species that gives it.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept
Terramycin is the trade name of oxytetracycline, a broad-spectrum antibiotic of the tetracycline group.

Step 2: Microbial source
It is obtained from the actinomycete Streptomyces rimosus.

Step 3: Other antibiotics
S. venezuelae gives chloramphenicol, S. griseus gives streptomycin and S. erythreus gives erythromycin.

Final Answer:
Terramycin comes from Streptomyces rimosus. \[ \boxed{\text{(C) }\text{Streptomyces rimosus}} \]