Table 2 in Variability in the composition of phenolic compounds in winter-dormant Salix pyrolifolia in relation to plant part and age

Table 2 Concentrations (mg g −1 dry wt ± s.e.) of phytochemicals in the vegetative buds and bark 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) due to age within the plant part. (* = overlap with quercetin glycosides).
CompoundsBuds 1-y currentBuds 3-y currentBuds 20-y currentBark 1-y currentBark 3-y currentBark 20-y currentBark 3-y previousBark 20-y previousSalicylate glucosidesSalicin1.75 ± 0.42 a0.41 ± 0.02 b1.91 ± 0.26 a1.27 ± 0.09 a1.30 ± 0.09 a2.60 ± 0.56 b1.47 ± 0.35 a3.15 ± 0.72 bHCH-derivative of salicin–––4.91 ± 0.47 a5.39 ± 0.89 b7.32 ± 0.89 c6.37 ± 0.80 b9.51 ± 0.82 cSalicortin3.22 ± 1.05 a1.27 ± 0.55 a7.97 ± 2.50 b131.1 ± 15.0 a133.7 ± 12.2 a150.5 ± 16.8 a119.3 ± 8.78 a136.6 ± 12.1 aDisalicortin–––0.79 ± 0.13 a1.50 ± 0.26 b2.04 ± 0.25 b2.92 ± 0.91 b3.46 ± 0.30 bSimple phenolic glucosidesPicein0.91 ± 0.38 a0.60 ± 0.10 a1.48 ± 0.41 b15.48 ± 4.11 a9.97 ± 6.10 a3.34 ± 0.12 a12.01 ± 4.52 a9.17 ± 1.36 aPicein derivative0.48 ± 0.09 ab0.31 ± 0.01 a0.57 ± 0.09 b0.70 ± 0.11 a0.53 ± 0.07 a0.25 ± 0.02 b0.51 ± 0.06 a0.30 ± 0.04 bTriandrin0.06 ± 0.03 a–0.13 ± 0.02 a0.06 ± 0.06 a0.21 ± 0.01 a0.19 ± 0.04 a0.17 ± 0.02 a0.13 ± 0.02 aSalireposide–––4.63 ± 0.17 a4.03 ± 0.32 a5.10 ± 0.35 b4.68 ± 0.24 a8.04 ± 1.34 bPhenolic acidsCinnamic acid derivative0.72 ± 0.14 ab0.76 ± 0.04 a0.43 ± 0.08 b0.13 ± 0.02 a0.16 ± 0.02 a0.09 ± 0.01 a0.12 ± 0.02 a0.10 ± 0.02 ap -OH-Cinnamic acid-glucoside0.83 ± 0.13 a1.26 ± 0.03 b1.27 ± 0.08 b0.87 ± 0.24 ab1.36 ± 0.12 b0.57 ± 0.07 a1.24 ± 0.11 b0.80 ± 0.19 ap -OH-Cinnamic acid derivative 10.06 ± 0.01 a0.39 ± 0.04 b0.41 ± 0.04 b0.21 ± 0.04 a0.47 ± 0.11 a0.47 ± 0.08 a0.26 ± 0.09 a0.29 ± 0.08 ap -OH-Cinnamic acid derivative 20.02 ± 0.00 a0.14 ± 0.01 b0.26 ± 0.04 b0.27 ± 0.02 a0.35 ± 0.04 a0.32 ± 0.03 a0.38 ± 0.03 a0.33 ± 0.02 ap -OH-Cinnamic acid derivative 3–0.12 ± 0.01 a0.17 ± 0.02 a0.05 ± 0.01 a0.10 ± 0.04 a0.17 ± 0.02 a–0.15 ± 0.03 a5-Caffeoylquinic acid (Chlorogenic acid)7.24 ± 0.61 a7.18 ± 0.55 a4.31 ± 0.61 b––1.28 ± 0.33 a–1.31 ± 0.31 aChlorogenic acid derivative 11.39 ± 0.21 a2.35 ± 0.17 b1.84 ± 0.11 a1.74 ± 0.37 a4.77 ± 0.43 b1.31 ± 0.21 a3.95 ± 0.58 b1.88 ± 0.56 aChlorogenic acid derivative 20.32 ± 0.02 a2.04 ± 0.16 b1.68 ± 0.27 c0.75 ± 0.10 a0.60 ± 0.13 a1.20 ± 0.22 a0.84 ± 0.29 a0.66 ± 0.17 aFlavonoidsIsosalipurposide (Phloridzin)2.87 ± 0.83 a3.10 ± 0.55 a2.90 ± 0.41 a16.78 ± 3.51 a3.10 ± 0.80 b4.19 ± 0.30 b4.72 ± 1.65 b4.85 ± 0.84 bMonomethyl-isosalipurposide0.18 ± 0.08 a0.26 ± 0.02 a0.35 ± 0.04 a0.20 ± 0.03 a0.55 ± 0.10 b0.37 ± 0.05 a0.29 ± 0.09 a0.17 ± 0.04 aDimethyl-isosalipurposide0.06 ± 0.03 a0.25 ± 0.02 b0.22 ± 0.02 b0.08 ± 0.01 a0.17 ± 0.04 b0.14 ± 0.02 b0.07 ± 0.02 a0.07 ± 0.03 aNaringenin 5- O -glucoside (Salipurposide)0.69 ± 0.14 a0.71 ± 0.10 a1.27 ± 0.13 b1.29 ± 0.65 ab0.60 ± 0.17 a1.07 ± 0.10 b0.89 ± 0.18 a2.13 ± 0.37 bNaringenin 5- O -glucoside derivative1.25 ± 0.24 a1.28 ± 0.19 a1.93 ± 0.23 b2.17 ± 0.98 a1.05 ± 0.26 a1.84 ± 0.17 a1.47 ± 0.27 a3.53 ± 0.52 bNaringenin 7-O-glucoside (Prunin)0.22 ± 0.16 a0.23 ± 0.04 a0.21 ± 0.07 a0.18 ± 0.05 a0.49 ± 0.08 b0.12 ± 0.03 a0.50 ± 0.01 b0.03 ± 0.03 cNaringenin0.12 ± 0.01 a0.26 ± 0.02 b0.28 ± 0.02 b–––––Quercetin 3- O -galactoside (Hyperin)1.59 ± 0.21 a4.62 ± 0.46 c3.51 ± 0.26 b1.31 ± 0.30 a3.22 ± 0.31 b0.84 ± 0.14 a2.87 ± 0.31 b1.01 ± 0.27 aQuercetin 3- O -glucoside (Isoquercitrin)1.97 ± 0.30 a2.85 ± 0.15 b2.88 ± 0.17 b1.06 ± 0.12 a1.43 ± 0.15 a0.73 ± 0.10 b1.07 ± 0.20 a0.61 ± 0.12 b7- O -Methylquercetin (Rhamnetin)0.07 ± 0.01 a0.27 ± 0.01 c0.12 ± 0.01 b0.20 ± 0.03––––Isorhamnetin 3- O -rhamnoside0.72 ± 0.03 a0.87 ± 0.07 b0.85 ± 0.05 b0.33 ± 0.03 a0.58 ± 0.07 a–0.42 ± 0.06 a–Kaempferol 3- O -glucoside (Astragalin)0.17 ± 0.01 a0.32 ± 0.03 b0.36 ± 0.04 b–––––Methylluteolin glucorhamnoside0.12 ± 0.03 a0.34 ± 0.04 b0.35 ± 0.02 b–––––Luteolin 7- O -glucoside0.49 ± 0.12**0.11 ± 0.03****Luteolin derivative0.07 ± 0.01 a–0.16 ± 0.01 a–––––Ampelopsin1.23 ± 0.31 a2.56 ± 0.32 b3.86 ± 0.29 c––0.17 ± 0.07 a–0.54 ± 0.09 bCatechin10.97 ± 0.30 a11.27 ± 0.27 a10.98 ± 1.06 a9.90 ± 1.03 a9.71 ± 0.42 a6.36 ± 0.21 b8.95 ± 0.42 a7.09 ± 0.31 bCondensed tannins, MeOH-soluble42.26 ± 6.03 a42.87 ± 0.98 a33.82 ± 4.49 a52.57 ± 2.25 a47.31 ± 1.37 a43.49 ± 5.20 a54.30 ± 7.38 a44.83 ± 5.41 aCondensed tannins, MeOH-insoluble50.95 ± 2.48 a25.45 ± 1.60 b37.91 ± 5.26 c40.36 ± 7.56 a35.44 ± 1.74 a29.43 ± 0.98 a40.75 ± 6.65 a30.09 ± 2.65 aTOTAL133.1 ± 10.5 a114.2 ± 6.84 a125.6 ± 10.5 a289.3 ± 13.3 a269.2 ± 25.6 a267.3 ± 26.1 a271.3 ± 29.1 a271.7 ± 21.5 a