Table I.

Genes induced by Pi, K, or Fe deficiencies in tomato roots and confirmed by northern analysis

Clone IDGene (Induction)Homology/FunctionAccession No.GenBank HitReference
D22-1MAP kinase (up 1–3 h)Tobacco WIPK/signaling AW979631 D61377 Seo et al. (1995)
H10-1Nitf (up 1–6 h)Tobacco TGA1a/regulatory AAK71287 X16450 Katagiri et al. (1989)
K20-1MEK1  (up  1  h)Tomato gene/signaling AW220008 CAA04261 Hackett et al. (1998)
O22-114-3-3 (up 3–12 h)Tomato gene/signaling AW218217 AF079450 X95905 Roberts and Bowles (1999); Pnueli et al. (2001)
27L1LePT1  (up  3–12  h)Tomato gene/Pi transporter AF022873 AF022873 Liu et al. (1998)
E13-1LeHAK5  (up  1  h)Arabidopsis HAK5 /K+transporter AW979921 AF129478
G22-1LeKC1  (up  3–12  h)Carrot Kdc1/K+channel AW218955 AJ249962 Downey et al. (2000)
I20-1LeIRT2  (3–24  h)Tomato gene/iron transporter AW219515 AF246266 Eckhardt et al. (2001)
1A16Nicotianamine synthase (up 3–6 h)Tomato gene /nicotianamine biosynthesis BG791292 CAB42052 Ling et al. (1999)
N5-2Glu decarboxylase (up 1–6 h)Tobacco GAD/GABA biosynthesis BG713805 AAB40608
I17-2Enolase (up 1–12 h)Tomato gene/glycolyis BG791245 X58108 Van der Straeten et al. (1991)
A4-4ATHP3  (up  1–6  h)Arabidopsis ATHP3 /phosphorelay mediator BG791212 BAA37112 Miyata et al. (1998)
D11-1ERF3  (up  1–3  h)Tobacco ERF3 /regulatory AW979604 AB024575
G20-2SKD1  (up  3–24  h)Human SKD1 /membrane transport AW621245 AAF17203 Scheuring et al. (1999)
G19-1bet3 (up 12–48 h)Mouse bet3/vesicular transport AW218945 AF041433 Jiang et al. (1998)
N3-1dwarf1 (down after 1 h)Arabidopsis dwarf1/cell elongation BG791226 U12400 Takahashi et al. (1995)
B2-1MAP kinase 6 (up 3–6 h)Tobacco MAPK 6/signaling AW980007 X83879 Wilson et al. (1995)

Except for dwarf1, all other genes were up-regulated by nutrient treatments. See text for details.