Which bacteria aids the production of antibiotic bacitracin?

Options

A. Bacillus vulgaris
B. Bacillus ramosus
C. Bacillus subtilis
D. Bacillus licheniformis

Answer

To determine which bacteria aids in the production of the antibiotic bacitracin, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify the specific bacteria that produces bacitracin, an antibiotic.

2. **Review the Options**: The options provided are:
- Bacillus vulgaris
- Bacillus ramosus
- Bacillus subtilis
- Bacillus licheniformis

3. **Research Bacitracin**: Bacitracin is known to be a topical antibiotic that is effective against gram-positive bacteria. It works by interfering with the bacterial cell wall and inhibiting the formation of peptidoglycan.

4. **Identify the Source of Bacitracin**: Bacitracin was first isolated from a bacterial strain in 1945. This strain is known to be a member of the Bacillus genus.

5. **Narrow Down the Options**:
- Bacillus vulgaris and Bacillus ramosus are not known to produce bacitracin.
- Bacillus subtilis is recognized as the bacterium from which bacitracin is isolated.
- Bacillus licheniformis is a different species and is not the source of bacitracin.

6. **Conclusion**: Based on the information gathered, the correct answer is **Bacillus subtilis**.

### Final Answer:
**Bacillus subtilis** aids in the production of the antibiotic bacitracin.

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