| ATP | adenosine triphosphate |
| AUX1 | AUXIN1 |
| BLAST | basic local alignment search tool |
| bp | base pair |
| CDS | coding DNA sequence |
| cv. | cultivar |
| ER | endoplasmic reticulum |
| IAA− | anionic indole-3-acetic acid |
| IAAH | protonated form of IAA |
| LAX | LIKE AUX1 |
| NCBI | national center for biotechnology information |
| PAT | polar auxin transport |
| PCR | polymerase chain reaction |
| PGP | P-glycoprotein |
| qPCR | quantitative polymerase chain reaction |
| RAM | root apical meristem |
| SE | standard error |
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