Plant pathogenic bacteria are mostly:
| 1. | Gram + Non-spore forming |
| 2. | Gram – Non-spore forming |
| 3. | Gram + spore forming |
| 4. | Gram (–) spore forming |
The difference in gram ⊕ and gram bacteria is due to:
| 1. | Cell wall | 2. | Cell membrane |
| 3. | Ribosome | 4. | Cytoplasm |