Table 3 in Variability in the composition of phenolic compounds in winter-dormant Salix pyrolifolia in relation to plant part and age

Table 3 Concentrations (mg g −1 dry wt ± s.e.) of phytochemicals in the wood of winter-dormant S. pyrolifolia in the current-year and previous-year growth of 1-. 3- and 20- year-old trees. Different letters (a – c) express the statistically significant differences (p <0.05) in the amount of a compound due to age.
CompoundWood 1-y currentWood 3-y currentWood 20-y currentWood 3-y previousWood 20-y previousSalicylate glucosidesSalicin2.72 ± 0.58 a2.29 ± 0.21 a2.60 ± 0.22 a1.03 ± 0.11 b1.35 ± 0.16 bHCH-derivative of salicin0.46 ± 0.11 ab0.40 ± 0.11 a0.64 ± 0.07 b0.17 ± 0.05 c0.22 ± 0.03 cSalicortin3.79 ± 0.36 a5.60 ± 0.79 a7.94 ± 1.29 a1.42 ± 0.38 b0.94 ± 0.19 bDisalicortin–0.11 ± 0.04 a0.32 ± 0.04 b–0.03 ± 0.03 cSimple phenolic glucosidesPicein0.41 ± 0.17 ab0.19 ± 0.03 a0.57 ± 0.09 b0.49 ± 0.15 ab0.55 ± 0.10 abTriandrin0.41 ± 0.39 a0.06 ± 0.01 a0.20 ± 0.09 a0.33 ± 0.13 a0.10 ± 0.01 aSalireposide0.18 ± 0.09 a0.08 ± 0.01 a0.25 ± 0.05 a0.04 ± 0.01 a0.08 ± 0.01 aPhenolic acidsp -OH-Cinnamic acid-glucoside0.02 ± 0.00 a0.01 ± 0.00 a0.01 ± 0.00 a–0.01 ± 0.00 a5-Caffeoylquinic acid (Chlorogenic acid)0.03 ± 0.01 a0.06 ± 0.00 a0.05 ± 0.00 a–0.02 ± 0.00 aFlavonoidsIsosalipurposide (Phloridzin)0.82 ± 0.53 a0.11 ± 0.03 a0.09 ± 0.01 a0.48 ± 0.30 a0.11 ± 0.02 aNaringenin 5- O -glucoside (Salipurposide)0.15 ± 0.08 a0.03 ± 0.01 a0.07 ± 0.01 a0.12 ± 0.07 a0.09 ± 0.02 aNaringenin 5- O -glucoside derivative0.25 ± 0.13 a0.07 ± 0.01 a0.14 ± 0.02 a0.21 ± 0.11 a0.16 ± 0.03 aNaringenin 7- O -glucoside (Prunin)0.16 ± 0.07 a0.07 ± 0.04 a0.08 ± 0.02 a–0.06 ± 0.01 aQuercetin 3 -O -galactoside (Hyperin)–0.02 ± 0.01 a0.04 ± 0.01 a–0.01 ± 0.00 aQuercetin 3- O -glucoside (Isoquercitrin)––0.04 ± 0.01 a–0.02 ± 0.00 aKaempferol 3- O -glucoside (Astragalin)––0.05 ± 0.01 a–0.02 ± 0.00 aCatechin1.90 ± 0.37 a0.81 ± 0.06 b1.12 ± 0.09 c0.41 ± 0.09 b0.56 ± 0.05 bCondensed tannins, MeOH-soluble6.59 ± 1.19 a3.88 ± 0.56 a5.48 ± 0.57 a1.47 ± 0.38 b2.16 ± 0.38 bCondensed tannins, MeOH-insoluble2.59 ± 0.50 a1.62 ± 0.21 a1.63 ± 0.11 a0.68 ± 0.15 b0.96 ± 0.11 bTOTAL20.30 ± 3.46 a15.38 ± 1.28 a20.89 ± 2.15 a7.12 ± 1.53 b8.23 ± 1.20 b