| Amp | Antigenic membrane protein |
| A. tumefaciens | Agrobacterium tumefaciens |
| CP | Coat protein |
| CYP | Chrysanthemum yellow phytoplasma |
| DAB | Diaminobenzidine |
| ET | Ethylene |
| ETI | Effector-triggered immunity |
| E. variegatus | Euscelidius variegatus |
| HR | Hypersensitive response |
| IDP | Immunodominant membrane protein |
| Imp | Immunodominant membrane protein |
| IdpA | Immunodominant membrane protein A |
| N. benthamiana | Nicotiana benthamiana |
| N. cincticeps | Nephotettix cinticeps |
| OY | Onion yellow strain |
| OY-M | Onion yellow strain, a mildly pathogenic line |
| PTI | PAMP-triggered immunity |
| PVX | Potato virus X |
| ROLP | Rice orange leaf phytoplasma |
| R. dorsalis | Recilia dorsalis |
| SA | Salicylic acid |
| Sec | Secretion pathway. |