Table 2 in Comparison of the chemical composition of three species of smartweed (genus Persicaria) with a focus on drimane sesquiterpenoids

Table 2 Chemical composition of organic extracts of leaves a of three Persicaria species.
CompoundR.I.P. hydropiper leaves b (%)P. minor leaves b (%)P. maculosa leaves b (%)Monoterpenes0.210.020.02Bornyl acetate12620.01n.d.n.d.Limonene10340.200.020.02Sesquiterpenes67.8511.113.15Drimanes45.124.900.23Polygodial c189244.273.960.23Isodrimenin20390.650.14n.d.Drimenin19730.190.80n.d.Drimenol1788n.d.n.d.n.d.Non-drimanes22.736.212.92(E)-b- farnesene14547.782.751.01a- Humulene14686.200.280.06Caryophyllene14326.102.580.02a- Bisabolol16931.150.41n.d.(E)-nerolidol15630.500.05n.d.(E)-b- bergamotene14920.320.04n.d.Aristolone17160.310.08n.d.Caryophyllene oxide15970.13n.d.n.d.(E)-a- bergamotene14390.110.01n.d.b- Bisabolene15130.05n.d.n.d.b- Elemene d13970.030.010.62a- Muurolene15070.03n.d.0.88Humulene epoxide II16250.02n.d.n.d.b- Bisabolol1677n.d.n.d.n.d.d- Cadinene1523n.d.n.d.n.d.b- Selinene1500n.d.n.d.0.33Diterpenes31.9288.8096.68Neophytadiene isomer I183621.0159.0662.72Neophytadiene isomer III18807.6521.4624.40Neophytadiene isomer II18613.268.289.56Others0.050.090.15Heneicosane e21000.030.060.12Dihydro-a- ionone f14190.01n.d.n.d.Nonanal g11050.010.030.03Total abundance (TIC)100100100Relative abundance (TIC)10034.422.3
R.I. = retention index; n.d. = not detected.
a Average of three replicates of each of four developmental stages (N = 3 × 4, Table 3). Standard errors were on average 28% of a given value.
b Relative content as percentage of the total content (sum of TIC peak areas) of a given species. Multiplication of the percentages in each column with the relative abundance of the species yields the relative contents between species.
c Polygodial contains a fraction of 9- epi -polygodial, which cannot be estimated reliably by GC–MS.
d b- Elemene is the heat-induced Cope rearrangement product formed from germacrene A in the GC–MS injection path (De Kraker et al., 1998).
e Alkane.
f Carotenoid derivative.
g Fatty acid derivative.

表2 三种蓼属（Persicaria）植物叶片有机提取物的化学成分

| 化合物 | 保留指数（R.I.） | 水蓼（P. hydropiper）叶片b(%) | 小蓼（P. minor）叶片b(%) | 斑蓼（P. maculosa）叶片b(%) |
| --- | --- | --- | --- | --- |
| 单萜类 | — | 0.21 | 0.02 | 0.02 |
| 乙酸龙脑酯 | 1262 | 0.01 | n.d. | n.d. |
| 柠檬烯 | 1034 | 0.20 | 0.02 | 0.02 |
| 倍半萜类 | — | 67.85 | 11.11 | 3.15 |
| 多萝烷类 | — | 45.12 | 4.90 | 0.23 |
| 多格达醛（Polygodial） | 1892 | 44.27 | 3.96 | 0.23 |
| 异多萝亭 | 2039 | 0.65 | 0.14 | n.d. |
| 多萝亭 | 1973 | 0.19 | 0.80 | n.d. |
| 多萝醇 | 1788 | n.d. | n.d. | n.d. |
| 非多萝烷类倍半萜 | — | 22.73 | 6.21 | 2.92 |
| (E)-β-法尼烯 | 1454 | 7.78 | 2.75 | 1.01 |
| α-葎草烯 | 1468 | 6.20 | 0.28 | 0.06 |
| 石竹烯 | 1432 | 6.10 | 2.58 | 0.02 |
| α-红没药醇 | 1693 | 1.15 | 0.41 | n.d. |
| (E)-橙花叔醇 | 1563 | 0.50 | 0.05 | n.d. |
| (E)-β-香柠檬烯 | 1492 | 0.32 | 0.04 | n.d. |
| 马兜铃酮 | 1716 | 0.31 | 0.08 | n.d. |
| 氧化石竹烯 | 1597 | 0.13 | n.d. | n.d. |
| (E)-α-香柠檬烯 | 1439 | 0.11 | 0.01 | n.d. |
| β-红没药烯 | 1513 | 0.05 | n.d. | n.d. |
| β-榄香烯 | 1397 | 0.03 | 0.01 | 0.62 |
| α-穆罗烯 | 1507 | 0.03 | n.d. | 0.88 |
| 环氧葎草烯II | 1625 | 0.02 | n.d. | n.d. |
| β-红没药醇 | 1677 | n.d. | n.d. | n.d. |
| δ-杜松烯 | 1523 | n.d. | n.d. | n.d. |
| β-芹子烯 | 1500 | n.d. | n.d. | 0.33 |
| 二萜类 | — | 31.92 | 88.80 | 96.68 |
| 新植二烯异构体I | 1836 | 21.01 | 59.06 | 62.72 |
| 新植二烯异构体III | 1880 | 7.65 | 21.46 | 24.40 |
| 新植二烯异构体II | 1861 | 3.26 | 8.28 | 9.56 |
| 其他成分 | — | 0.05 | 0.09 | 0.15 |
| 二十一烷 | 2100 | 0.03 | 0.06 | 0.12 |
| 二氢-α-紫罗兰酮 | 1419 | 0.01 | n.d. | n.d. |
| 壬醛 | 1105 | 0.01 | 0.03 | 0.03 |
| 总丰度（总离子流色谱，TIC） | — | 100 | 100 | 100 |
| 相对丰度（总离子流色谱，TIC） | — | 100 | 34.4 | 22.3 |

注释说明：
1. 保留指数（R.I.）= 保留时间指数；n.d. = 未检出。
2. 注a：为四个发育阶段各三次重复的平均值（N = 3 × 4，详见表3）。标准误差均值约为对应测定值的28%。
3. 注b：相对含量以对应物种总离子流色谱（TIC）峰面积之和的百分比表示。将各列百分比乘以对应物种的相对丰度，即可得到不同物种间的相对含量。
4. 注c：多格达醛（Polygodial）含有少量9-表-多格达醛，该组分无法通过气相色谱-质谱联用仪（GC-MS）准确定量。
5. 注d：β-榄香烯是在GC-MS进样路径中由大牻牛儿烯A（germacrene A）经热诱导的Cope重排产物（De Kraker等，1998）。
6. 注e：二十一烷为烷烃类化合物。
7. 注f：二氢-α-紫罗兰酮为类胡萝卜素衍生物。
8. 注g：壬醛为脂肪酸衍生物。