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Table 1 pH values of hydroponic solution initially and after 4 h of PHE uptake

From: Interaction of phenanthrene and potassium uptake by wheat roots: a mechanistic model

Treatment pH1 pH2 ΔpH
Ck (-K+-PHE) 5.50 5.47 ± 0.06d -0.03 ± 0.06d
+5.62 μM PHE 5.50 5.82 ± 0.03a 0.32 ± 0.03a
+0.2 mM K+ 5.50 5.38 ± 0.01e -0.12 ± 0.01e
+0.2 mM K+ +5.62 μM PHE 5.50 5.72 ± 0.03b 0.22 ± 0.03b
+6 mM K+ 5.50 5.32 ± 0.02f -0.18 ± 0.02f
+6 mM K+ +5.62 μM PHE 5.50 5.65 ± 0.02c 0.15 ± 0.02c
  1. Millipore water (pH 5.5) was employed for medium. Data were subjected to one-way ANOVA and compared using the Duncan’s test (P < 0.05). Different letters in the same column indicate significant differences. PHE, phenanthrene. pH1, pHinitial. pH2, pHafter 4h. ΔpH = pHafter 4h - pHinitial.