Impact des métaux lourds sur les interactions plante/ver de terre ...

Partie C : Résultats – Chapitre C-ITable 1: Leaves, stems, shoot and root biomass at the end of the phytoextraction experiment(g DW/plant/pot) of Lantana camara in control non-polluted and metal polluted.tel-00486649, version 1 - 26 May 2010Non-Pb, plantNon-Pb, plant and earthwormLow Pb, plantLow Pb, plant and earthwormHigh Pb, plantHigh Pb, plant and earthwormTable 2: Metal concentration (mg kg -1 DW) in the shoot and root of Lantanacamara in control non-polluted and metal polluted.Non-Pb, plantNon-Pb, plant and earthwormLow Pb, plantLow Pb, plant and earthwormHigh Pb, plantLeaves(g DW/plant/pot)8,00 ± 0,41 (b)7,89 ± 0,35 (bc)7,51 ± 0,72 (c)8,34 ± 0,63 (ab)7,81 ± 0,34 (bc)9,89 ± 1,45 (a)High Pb, plant and earthwormStemsPb (mg kg -1 ) in shoot6.72 ± 1.6 (e)1.87 ± 0.1 (e)(g DW/plant/pot)12,94 ± 1,98 (c)13,98 ± 1,39 (c)19,46 ± 0,61 (ab)23,99 ± 1,71 (a)17,71 ± 2,42 (b)22,21 ± 2,28 (a)52.59 ± 10.6 (d)144.89 ± 23.5 (c)225.97 ± 74.9 (b)522.77 ± 135.1 (a)Shoot(g DW/plant/pot)21.61 ± 1.6 (c)21.88 ± 2.5 (bc)24.64 ± 2.7 (b)28.33 ± 2.3 (a)24.55 ± 2.4 (b)27.77 ± 1.74 (a)For each biomass value, numbers followed with the different letters are significantlydifferent (P < 0.05) according to Tukey’s HSP-test. Mean values (n = 3) ± standard errorPb (mg kg -1 ) in root7.86 ± 6.9 (a)2.57 ± 1.3 (a)946.83 ± 375.1 (b)2816.60 ± 1955.1 (c)1645.90 ± 590.9 (a)3284.08 ± 328.1 (e)Root(g DW/plant/pot)12.13 ± 0.3 (c)13.11 ± 0.2 (c)17.21 ± 2.1 (b)23.11 ± 3.5 (a)19.11 ± 0.2 (b)24.21 ± 2.6 (a)For each metal concentration value, numbers followed with the different lettersare significantly different (P < 0.05) according to Tukey’s HSP-test. Meanvalues (n = 3) ± standard deviation67