Table 1.
Differentially expressed genes detected by comparative microarray analysis of the root transcriptome of Arabidopsis wild-type and m19m23 double mutant plants
| Annotation | Gene model | FC (≥1.5) | A | Adjusted P value (BH) |
| Down-regulated | ||||
| bZIP transcription factor family protein | AT4G35040 | −35.87 | 7.31 | 9.27E-08 |
| ZIP3 (ZINC TRANSPORTER 3 PRECURSOR)* | AT2G32270 | −26.23 | 9.67 | 1.35E-09 |
| phosphatidylinositol 3- and 4-kinase family protein/ubiquitin family protein | AT5G24240 | −8.43 | 8.20 | 3.57E-08 |
| ZIP5 (ZINC TRANSPORTER 5 PRECURSOR)* | AT1G05300 | −8.34 | 6.90 | 4.15E-07 |
| ZIP4 (ZINC TRANSPORTER 4 PRECURSOR)* | AT1G10970 | −7.19 | 7.68 | 9.27E-08 |
| ZIP9 (ZINC TRANSPORTER 9 PRECURSOR)* | AT4G33020 | −3.23 | 6.90 | 4,41E-04 |
| ZIP1 (ZINC TRANSPORTER 1 PRECURSOR)* | AT3G12750 | −3.21 | 7.33 | 1.10E-05 |
| nicotianamine synthase, putative (NAS2)* | AT5G56080 | −3.02 | 9.24 | 1.28E-02 |
| ATPAP27/PAP27 (purple acid phosphatase 27) | AT5G50400 | −2.51 | 9.79 | 1.10E-05 |
| nicotianamine synthase, putative (NAS4)* | AT1G56430 | −2.46 | 7.68 | 1.98E-03 |
| ATARP9 (ACTIN-RELATED PROTEIN 9) | AT5G43500 | −2.33 | 7.28 | 3.16E-05 |
| FRD3 (FERRIC REDUCTASE DEFECTIVE 3) | AT3G08040 | −1.78 | 8.61 | 1.98E-03 |
| prolyl oligopeptidase, putative/prolyl endopeptidase, putative/postproline cleaving enzyme, putative* | AT1G20380 | −1.77 | 8.28 | 6.20E-03 |
| WR3 (WOUND-RESPONSIVE 3) | AT5G50200 | −1.60 | 11.63 | 2.48E-02 |
| ZIP10 (ZINC TRANSPORTER 10 PRECURSOR)* | AT1G31260 | −1.60 | 6.30 | 3.09E-02 |
| similar to unknown protein [Arabidopsis thaliana] (TAIR:AT1G61260.1) | AT4G04990 | −1.59 | 8.41 | 4.22E-03 |
| Up-regulated | ||||
| LAC2 (laccase 2) | AT2G29130 | 1.82 | 7.01 | 1.82E-02 |
| ANR1; DNA binding / transcription factor | AT2G14210 | 1.71 | 8.90 | 2.85E-02 |
| similar to unknown protein [Arabidopsis thaliana] (TAIR:AT1G21670.1) | AT1G21680 | 1.57 | 8.98 | 2.85E-02 |
| ATEBP/ERF72/RAP2.3 (RELATED TO AP2 3) | AT3G16770 | 1.55 | 9.68 | 4.18E-02 |
| COBL2 (COBRA-LIKE PROTEIN 2 PRECURSOR) | AT3G29810 | 1.54 | 7.40 | 3.42E-02 |
| kelch repeat-containing F-box family protein | AT1G80440 | 1.52 | 11.05 | 9.48E-03 |
| ATPSK2 (PHYTOSULFOKINE 2 PRECURSOR) | AT2G22860 | 1.52 | 9.20 | 4.24E-02 |
*Indicates genes that contain one or more copies of the ZDRE in their promoter region.
Roots of 4-week-old plants grown in hydroponics and exposed in their last week to low zinc supply (0.05 μM ZnSO4) were used. Fold change (FC) ≥ 1.5 and adjusted P values (Benjamini-Hochberg, BH) ≤ 0.05 were used as cutoffs. Average expression values (log2 scale) of the gene models in the data set are indicated as A.