| VA | Vanillic acid |
| PA | Protocatechuic acid |
| DMs | Differential metabolites |
| DPMs | Differential phenolic acid metabolites |
| QC | Quality control |
| PCA | Principal component analysis |
| VIP | Variable importance in projection |
| KEGG | Kyoto Encyclopedia of Genes and Genomes |
| DEGs | Differentially expressed genes |
| PI | Propidium iodide |
| PBS | Phosphate-buffered saline |
| OPLS-DA | Orthogonal partial least squares discriminant analysis |
| RT-qPCR | Real-time quantitative PCR analysis |
| PDA | Potato dextrose agar |