**Introduction to Streptomycin**
**Definition:**
Streptomycin is an aminoglycoside antibiotic derived from *Streptomyces griseus*. It is widely recognized for its potent antibacterial properties, particularly against tuberculosis (TB) and other bacterial infections.
**Functions:**
1. **Antibacterial Action:** Effective against Gram-negative bacteria and some Gram-positive bacteria.
2. **Tuberculosis Treatment:** A key component in the first-line treatment of TB.
3. **Protein Synthesis Inhibition:** Works by disrupting bacterial protein synthesis, leading to cell death.
**Applications:**
1. **Medical Use:** Treats tuberculosis, plague, and other serious bacterial infections.
2. **Veterinary Medicine:** Used to combat bacterial infections in livestock and pets.
3. **Agricultural Use:** Applied to control bacterial diseases in crops.