Treatment

DNA (mg∙g−1 FW)

RNA (mg∙g−1 FW)

Soluble protein (mg∙g−1 FW)

Free proline (mg∙g−1 FW)

Control

Al 400 mg∙kg soil1

Al 400 mg∙kg soil1 + 0.5 μMEBL

Al 400 mg∙kg soil1 + 1 μMEBL

Al 400 mg∙kg soil1 + 2 μMEBL

Al 600 mg∙kg soil1

Al 600 mg∙kg soil1 + 0.5 μMEBL

Al 600 mg∙kg soil1 + 1 μMEBL

Al 600 mg∙kg soil1 + 2 μMEBL

Al 800 mg∙kg soil1

Al 800 mg∙kg soil1 + 0.5 μMEBL

Al 800 mg∙kg soil1 + 1 μMEBL

Al 800 mg∙kg soil1 + 2 μMEBL

0.541 ± 0.022

0.436 ± 0.015*

0.439 ± 0.014*

0.456 ± 0.024*

0.508 ± 0.055

0.430 ± 0.032*

0.395 ± 0.028*†

0.412 ± 0.029*†

0.447 ± 0.031*†

0.384 ± 0.025*

0.394 ± 0.027*

0.409 ± 0.021*&

0.443 ± 0.030*&

0.839 ± 0.011

0.790 ± 0.016*

0.796 ± 0.028

0.811 ± 0.026

0.837 ± 0.029@

0.725 ± 0.044*

0.731 ± 0.022*

0.769 ± 0.025*†

0.784 ± 0.027*

0.620 ± 0.052*

0.655 ± 0.032*

0.732 ± 0.039*&

0.740 ± 0.024*&

1.68 ± 0.34

1.32 ± 0.19*

1.37 ± 0.21

1.54 ± 0.36*

1.67 ± 0.43

1.14 ± 0.18*

1.18 ± 0.16

1.26 ± 0.32*

1.34 ± 0.43*

1.06 ± 0.12*

1.13 ± 0.12

1.28 ± 0.23*

1.32 ± 0.37*

3.22 ± 0.20

4.12 ± 0.19*

4.63 ± 0.16*@

5.13 ± 0.22*@

6.54 ± 0.17*@

4.91 ± 0.16*

5.20 ± 0.26*†

5.68 ± 0.12*†

6.88 ± 0.13*†

6.20 ± 0.20*

6.13 ± 0.28*

8.74 ± 0.32*&

10.2 ± 0.22*&