Table 1 Selected genes differentially expressed in Al-treated aspen roots.

Cell wall ^e

PtpAffx.21218.1.S1_at

eugene3.00280166

AT3G13750

Beta-galactosidase 1 (BGAL1; GH35)

0.2

0.5^ns

0.5^ns

PtpAffx.122394.1.S1_at

gw1.I.26.1

AT5G64570

Beta-xylosidase 4 (XYL4; GH3)

0.2

0.8^ns

1.3^ns

PtpAffx.212738.1.S1_at

estExt_fgenesh4_pg.C_LG_XV0425

AT5G62620

Galactosyltransferase family protein

2.1

1.0^ns

1.2^ns

Ptp.7955.1.S1_at

gw1.VIII.37.1

AT1G24170

Galacturonosyltransferase-like 8 (GATL8; GT9)

0.5

0.7^ns

1.0^ns

PtpAffx.208384.1.S1_at

gw1.VIII.37.1

AT1G70090

Galacturonosyltransferase-like 9 (GATL9; GT8)

0.5

0.8^ns

1.1^ns

PtpAffx.209224.1.S1_at

fgenesh4_pg.C_LG_X001601

AT1G65610

Endo-1,4-beta-glucanase Korrigan 2 (KOR2; GH9)

2.1

1.3^ns

1.0^ns

PtpAffx.207811.1.S1_at

estExt_fgenesh4_pg.C_LG_VIII0680

AT1G65610

Endo-1,4-beta-glucanase Korrigan 2 (KOR2; GH9)

2.9

1.3^ns

1.0^ns

Ptp.4073.1.S1_s_at

estExt_fgenesh4_pg.C_LG_XIV0665

AT4G02290

Endo-1,4-beta-glucanase 17 (GH9)

0.2

0.5^ns

1.0^ns

PtpAffx.116752.1.A1_at

gw1.VIII.287.1

AT3G26380

Glycosyl hydrolase family protein 27 (GH27)

2.0

1.6

1.4^ns

PtpAffx.20309.1.S1_at

estExt_fgenesh4_pg.C_LG_X2099

AT5G04500

Glycosyl transferase family protein 64 (GT64)

5.2

3.8

1.7^ns

Ptp.4642.1.S1_at

estExt_fgenesh4_pg.C_LG_XI1340

AT1G30620

UDP-D-xylose 4-epimerase 1 (UXE1)

2.2

1.7

1.1^ns

PtpAffx.31211.1.A1_at

eugene3.00140929

AT1G05560

UDP-glucose transferase 1 (UGT1; GT1)

6.4

0.8^ns

1.5^ns

Ptp.160.1.S1_x_at

fgenesh4_pm.C_LG_II000873

AT3G62830

UDP-glucuronic acid decarboxylase 2 (UXS2)

2.2

1.2^ns

1.3^ns

PtpAffx.119179.1.A1_at

gw1.1681.2.1

AT5G48070

Xyloglucan endotransglucosylase/hydrolase 20 (XTH20; GH16)

4.3

1.6^ns

1.7^ns

Ptp.2467.1.A1_x_at

gw1.XIX.2748.1

AT4G03210

Xyloglucan endotransglucosylase/hydrolase 9 (XTH9; GH16)

0.3

0.6^ns

1.1^ns

Ptp.3050.1.S1_s_at

estExt_Genewise1_v1.C_LG_XIV2162

AT1G10550

Xyloglucan:xyloglucosyltransferase 33 (XTH33; GH16)

0.3

0.8^ns

0.9^ns

Ptp.4810.1.A1_s_at

estExt_Genewise1_v1.C_LG_III0932

AT1G04680

Pectate lyase family protein

0.5

0.8^ns

0.9^ns

PtpAffx.1316.2.S1_s_at

eugene3.00010425

AT1G04680

Pectate lyase family protein

0.2

1.0^ns

0.9^ns

PtpAffx.9932.3.S1_a_at

eugene3.00030462

AT1G53830

Pectin methylesterase 2 (PME2)

0.4

0.9^ns

0.8^ns

PtpAffx.9932.2.A1_s_at

estExt_fgenesh4_pm.C_290002

AT3G14310

Pectin methylesterase inhibitor 3 (PMEI3)

0.5

1.0^ns

1.0^ns

Ptp.7635.1.S1_at

eugene3.00140717

AT1G02810

Pectin methylesterase inhibitor 7 (PMEI7)

4.0

1.5^ns

0.9^ns

PtpAffx.207505.1.S1_at

gw1.VIII.1476.1

AT3G10720

Pectin methylesterase inhibitor 25 (PMEI25)

0.3

0.5^ns

1.0^ns

Ptp.3290.1.S1_at

gw1.VII.2504.1

AT5G08200

Peptidoglycan-binding LysM domain-containing protein

2.2

1.2^ns

1.1^ns

Ptp.2725.1.S1_at

gw1.X.2924.1

AT5G62150

Peptidoglycan-binding LysM domain-containing protein

3.1

1.2^ns

1.2^ns

PtpAffx.208179.1.S1_at

eugene3.00081504

AT2G23770

Peptidoglycan-binding LysM domain-containing protein

2.3

1.5^ns

1.1^ns

Transport

Ion transport

Ptp.6087.1.S1_at

eugene3.97260001

AT5G01600

Ferritin 1 (FER1)

0.3^ns

0.4^ns

0.3

PtpAffx.595.4.S1_s_at

estExt_fgenesh4_pg.C_1470038

AT2G24520

H⁺-ATPase 5 (HA5)

2.3

1.5^ns

1.6^ns

PtpAffx.208738.1.S1_s_at

estExt_fgenesh4_pm.C_LG_X0276

AT5G64560

Mg transporter CorA-like family protein (MRS2-2)

4.8

2.2^ns

1.4^ns

PtpAffx.46328.1.A1_at

gw1.I.4154.1

AT3G19640

Mg transporter CorA-like family protein (MRS2-3)

3.8

2.8

1.3^ns

PtpAffx.204370.1.S1_at

fgenesh4_pg.C_LG_IX000025

AT5G44370

Phosphate transporter 4;6 (PHT4;6)

4.3

1.8^ns

1.1^ns

PtpAffx.249.377.A1_at

fgenesh4_pm.C_LG_V000517

AT3G51895

Sulfate transmembrane transporter 3;1 (SULTR3;1)

2.4

1.3^ns

1.0^ns

PtpAffx.63924.1.S1_at

eugene3.01570002

AT5G19600

Sulfate transmembrane transporter 3;5 (SULTR3;5)

26.8

109.2

3.2^ns

PtpAffx.46298.1.S1_at

estExt_fgenesh4_pg.C_LG_VIII0032

AT5G55630

Two pore K⁺ channel 1 (TPK1)

2.1

1.3^ns

1.1^ns

Transport facilities

PtpAffx.119032.1.S1_s_at

gw1.XVI.2587.1

AT2G37330

Aluminum sensitive 3 (ALS3)

44.4

27.5

5.2

Ptp.5171.1.S1_at

gw1.VI.655.1

AT5G03910

ABC transporter homolog 12 (ATH12)

2.5

1.4^ns

1.1^ns

PtpAffx.204839.1.S1_at

gw1.IX.3299.1

AT3G08040

MATE (FRD3)

8.9

4.2^ns

1.7^ns

Ptp.2869.1.A1_at

gw1.I.5916.1

AT1G30690

SEC14 cytosolic factor family protein/phosphoglyceride transfer family protein

0.3

0.8^ns

0.9^ns

Oxidative stress response ^f

Ptp.2903.1.A1_s_at

gw1.XII.485.1

AT3G22370

Alternative oxidase 1A (AOX1A)

8.6

1.5^ns

3.6^ns

PtpAffx.56141.1.A1_at

grail3.0007029701

AT5G20230

Blue copper binding protein (BCB)

2.4

1.4^ns

2.4^ns

PtpAffx.153878.1.A1_at

gw1.XV.2559.1

AT5G51100

Fe superoxide dismutase (FSD2)

1.4^ns

1.5^ns

2.8

PtpAffx.134361.1.A1_s_at

eugene3.00031141

AT1G64500

Glutaredoxin family protein

0.4

0.7

0.4^ns

PtpAffx.2286.4.S1_a_at

-

AT1G17180

Glutathione S-transferase tau 25 (GSTU25)

0.4

0.5^ns

1.9^ns

PtpAffx.23427.1.S1_s_at

estExt_fgenesh4_pg.C_LG_VIII1530

AT2G29420

Glutathione S-transferase tau 7 (GSTU7)

2.9

1.0^ns

1.5^ns

PtpAffx.29337.1.A1_at

eugene3.00030584

AT5G67400

Peroxidase 73 (P73)

0.5

1.0^ns

1.0^ns

PtpAffx.36879.1.A1_s_at

gw1.VII.698.1

AT5G24070

Peroxidase family protein

0.5

0.7^ns

0.8^ns

PtpAffx.43372.1.A1_at

fgenesh4_pg.C_LG_XVI000455

AT5G06720

Peroxidase, putative

3.1

1.4^ns

0.9^ns

PtpAffx.54628.1.S1_at

estExt_fgenesh4_pg.C_LG_XVI1240

AT5G05340

Peroxidase, putative

13.3

1.7^ns

1.1^ns

PtpAffx.55376.1.S1_at

fgenesh4_pg.C_LG_XIV000840

AT5G05340

Peroxidase, putative

2.0^ns

0.4^ns

0.1