Table 4 P accumulation of P. hydropiper grown under perlite media containing 3 mM P supplied either as G1P, AMP, ATP, IHP, or Pi for 5 weeks (mg plant−1).

From: P accumulation and physiological responses to different high P regimes in Polygonum hydropiper for understanding a P-phytoremediation strategy

P sources

Root

Stem

Leaf

ME

NME

ME

NME

ME

NME

G1P

1.39 ± 0.15b*

0.50 ± 0.13c

14.09 ± 0.24c*

7.92 ± 0.20c

3.64 ± 0.42b

2.81 ± 0.29b

AMP

1.80 ± 0.10b*

0.45 ± 0.15c

10.19 ± 0.76d*

6.01 ± 0.69cd

3.79 ± 0.36b*

1.61 ± 0.18b

ATP

0.50 ± 0.05c

0.55 ± 0.07c

8.16 ± 0.17d*

4.23 ± 0.38d

2.75 ± 0.39b

2.11 ± 0.01b

IHP

1.71 ± 0.21b

1.73 ± 0.34b

21.83 ± 1.93b*

16.85 ± 0.97b

9.48 ± 0.81a

10.14 ± 0.37a

Pi

2.47 ± 0.10a

2.32 ± 0.20a

29.76 ± 0.80a*

22.82 ± 0.46a

10.78 ± 0.77a

11.12 ± 0.47a

  1. Note: ME: mining ecotype, NME: non-mining ecotype. The data mean the average ± standard error of 6 replicates. Means labeled with different letters are significantly different (p < 0.05) among P sources and * indicates significant difference (p < 0.05) between ecotypes.
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