Table 2 |
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|
109Cd and 65Zn translocation to shoots in durum wheat seedlings. |
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|
Time (h) |
Shoot 109Cd/Root 109Cd |
Shoot 65Zn/Root 65Zn |
||
|
|
|
|||
|
TL-H |
TL-L |
TL-H |
TL-L |
|
|
|
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|
3 |
0.042 ± 0.002 |
0.037 ± 0.002 |
0.263 ± 0.010 |
0.222 ± 0.013 |
|
6 |
0.068 ± 0.003 |
0.066 ± 0.004 |
0.366 ± 0.013 |
0.369 ± 0.014 |
|
12 |
0.132 ± 0.004 |
0.117 ± 0.004 |
0.524 ± 0.009 |
0.497 ± 0.016 |
|
24 |
0.193 ± 0.011 *** |
0.157 ± 0.006 |
0.609 ± 0.031 |
0.698 ± 0.023 |
|
36 |
0.241 ± 0.014 *** |
0.151 ± 0.007 |
0.698 ± 0.036 |
0.679 ± 0.023 |
|
48 |
0.279 ± 0.008 *** |
0.158 ± 0.006 |
0.714 ± 0.019 |
0.759 ± 0.033 |
|
60 |
0.274 ± 0.006 *** |
0.156 ± 0.006 |
0.737 ± 0.029 |
0.693 ± 0.031 |
|
|
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|
Intact roots of high (TL-H) and low (TL-L) Cd-accumulating isolines were exposed for up to 60 h (solutions changed every 12 h) in complete nutrient solution containing 50 pM 109Cd and 0.5 μM 65Zn, followed by a 30 min (2°C) desorption in non-radiolabelled nutrient solution containing 50 μM DTPA. Data represent means ± standard errors of 7 replicates. Significant differences between isolines by Student's t-test are indicated with *** (p < 0.001). |
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|
Harris and Taylor BMC Plant Biology 2004 4:4 doi:10.1186/1471-2229-4-4 |
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