Table I.
In silico analysis of the cis-regulatory regions of Pi starvation-responsive genes for predicted WRKY-binding W boxes (ttgacc/t)
| Gene | No. of W Box Promoter Motifs
|
Gene Function during Pi Starvation | Reference | |
|---|---|---|---|---|
| ttgacc | ttgact | |||
| At4 | 2 | – | Internal Pi allocation | Shin et al. (2006) |
| AtIPS1 | – | 1 | Cytokinin signaling | Martín et al. (2000) |
| Pht1;1 | 1 | 4 | Pi transporter | Muchhal et al. (1996) |
| Pht1;3 | 1 | 3 | Pi transporter | Okumura et al. (1998) |
| Pht1;4 | 1 | 3 | Pi transporter | Muchhal et al. (1996) |
| Pht1;5 | – | 1 | Pi transporter | Okumura et al. (1998) |
| Pht1;7 | – | 3 | Pi transporter | Mudge et al. (2002) |
| Pht1;8 | – | 1 | Pi transporter | Mudge et al. (2002) |
| Pht1;9 | – | 2 | Pi transporter | Mudge et al. (2002) |
| AtPS2-1 | 3 | 3 | Protein phosphatase | K.G. Raghothama (unpublished data) |
| AtPS2-2 | – | 1 | Protein phosphatase | K.G. Raghothama (unpublished data) |
| AtPS2-3 | – | – | Protein phosphatase | K.G. Raghothama (unpublished data) |
| PHR1 | – | – | Transcription factor | Rubio et al. (2001) |
| ACP5 | – | – | Type 5 acid Phosphatase | Del Pozo et al. (1999) |
| PAP11 | 1 | – | Purple acid phosphatase | Li et al. (2002) |
| PLDζ2 | – | – | Phosphate recycling | Cruz-Ramírez et al. (2006) |
| RNS1 | 1 | 1 | Ribonuclease RNS1 | Bariola et al. (1994) |
| SQD1 | 1 | – | Sulfolipid biosynthesis gene SQD1 | Essigmann et al. (1998) |
| SQD2 | 1 | 2 | Sulfolipid biosynthesis gene SQD2 | Yu et al. (2002) |
| Vsp2 | 3 | 1 | Vegetative storage protein | Utsugi et al. (1998) |