| AP-2 | ADAPTOR PROTEIN 2 |
| ARF GEF | ADP RIBOSYLATION FACTOR GUANINE NUCLEOTIDE EXCHANGE FACTOR |
| ARF | AUXIN RESPONSE FACTOR |
| ARG1 | ALTERED RESPONSE TO GRAVITY 1 |
| ARL2 | ARG1-LIKE 2 |
| Aux/IAA | AUXIN/INDOLE-3-ACETIC ACID |
| AUX1 | AUXIN RESISTANT 1 |
| BASL | BREAKING OF ASYMMETRY IN THE STOMATAL LINEAGE |
| BFA | Brefeldin A |
| BRX | BREVIS RADIX |
| CAMEL | CANALIZATION-RELATED AUXIN-REGULATED MALECTIN-TYPE RLK |
| CANAR | CANALIZATION-RELATED RECEPTOR-LIKE KINASE |
| CCV | Clathrin Coated Vesicle |
| CESA3 | CELLULOSE SYNTHASE A3 |
| CME | clathrin-mediated endocytosis |
| CNGC14 | CYCLIC NUCLEOTIDE-GATED CHANNEL 14 |
| D6PK | D6 PROTEIN KINASE |
| GA | gibberellic acid |
| GSA | Gravitropic Set Point Angle |
| HSC70 | HEAT SHOCK COGNATE PROTEIN 70 |
| IAA | indole-3-acetic acid |
| Ld | liquid-disordered |
| LRC | lateral root cap |
| Lo | liquid-ordered |
| LZY1 | LAZY 1 |
| MAKR2 | MEMBRANE ASSOCIATED KINASE REGULATOR 2 |
| NPA | 1-N-naphthylphthalamic acid |
| PAT | polar auxin transport |
| PAX | PROTEIN KINASE ASSOCIATED WITH BRX |
| PI(3,5)P2 | Phosphatidylinositol 3,5-bisphosphate |
| PI(4,5)P2 | phosphatidylinositol 4,5-bisphosphate |
| PI3P | Phosphatidylinositol 3-phosphate |
| PI4P | Phosphatidylinositol 4-phosphate |
| PID | PINOID |
| PIN | PIN-FORMED |
| PIP | Phosphoinositide |
| PIP5K | PHOSPHATIDYLINOSITOL-4-PHOSPHATE 5-KINASE |
| PLC | PHOSPHOLIPASE C |
| PLT | PLETHORA |
| PP2A/PP6 | PROTEIN PHOSPHATASE 2A/PROTEIN PHOSPHATASE 6 |
| QC | quiescent center |
| RCC1 | REGULATOR OF CHROMOSOME CONDENSATION |
| REM | remorin |
| REPP | REGULATOR OF PIN POLARITY |
| RLD | RCC1-LIKE DOMAIN |
| RLK | REPEAT RECEPTOR-LIKE KINASE |
| ROP6 | RHO OF PLANT 6 |
| ROS | reactive oxygen species |
| SA | salicylic acid |
| TGN | trans-Golgi network |
| TIR1/AFB | TRANSPORT INHIBITOR RESPONSE1/AUXIN SIGNALLING F-BOX |
| TMK | TRANSMEMBRANE KINASE |
| WAG | WAVY ON AGAR |