以3年生的银杏幼树为实验材料,经过淹水处理后,测定不同时间银杏叶片内主要生化指标——丙二醛(M DA)、游离脯氨酸(PRO)、可溶性糖以及超氧化物歧化酶(SOD)含量的变化.结果表明:淹水后的前9天,银杏叶片丙二醛含量无明显变化,第10天,其M...以3年生的银杏幼树为实验材料,经过淹水处理后,测定不同时间银杏叶片内主要生化指标——丙二醛(M DA)、游离脯氨酸(PRO)、可溶性糖以及超氧化物歧化酶(SOD)含量的变化.结果表明:淹水后的前9天,银杏叶片丙二醛含量无明显变化,第10天,其M DA含量显著增加,达到18.7μm o l/g,比对照M DA含量(7.2μm o l/g)增加1倍多;淹水后第8天,银杏叶片游离脯氨酸(PRO)含量显著增高,达到101.4μg/g,为对照的2倍多;随着淹水时间的延长,银杏叶片可溶性糖的含量逐渐增加,第9天达到32.9 m g/g,随后维持在较高水平上;在淹水后前几天,SOD的活性增加较快,第5天,SOD活性达到最高值854.6 U/g,第6天开始下降,到第11天时,其活性为78.8 U/g,远远低于对照组.展开更多
The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results sh...The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results show that Se in burdock stem, skin and leaf are 32.40, 48.63, 38.10 μg/g, respectively; Cd in burdock stem, skin and leaf are 0. 160 0, 0. 300 0, 0. 140 0 μg/g, respectively; Cd in burdock stem, skin and leaf are 2. 020, 3. 960, 2. 410 μg/g, respectively. In the ginkgo and ginko leaf, Se contents are 17.63 and 16.91 μg/g, respectively ; for Cd are 0. 181 0 and 0.2020μg/g, respectively ; for Pb are 3. 572 and 4. 021 μg/g, respectively. In garlic, Se, Cd and Pb are 73. 900 0, 6. 900 0 and 0. 390 0, respectively. All the standard deviations of measured results are below 2.3%, recovery rate are from 99% to 101%.展开更多
文摘以3年生的银杏幼树为实验材料,经过淹水处理后,测定不同时间银杏叶片内主要生化指标——丙二醛(M DA)、游离脯氨酸(PRO)、可溶性糖以及超氧化物歧化酶(SOD)含量的变化.结果表明:淹水后的前9天,银杏叶片丙二醛含量无明显变化,第10天,其M DA含量显著增加,达到18.7μm o l/g,比对照M DA含量(7.2μm o l/g)增加1倍多;淹水后第8天,银杏叶片游离脯氨酸(PRO)含量显著增高,达到101.4μg/g,为对照的2倍多;随着淹水时间的延长,银杏叶片可溶性糖的含量逐渐增加,第9天达到32.9 m g/g,随后维持在较高水平上;在淹水后前几天,SOD的活性增加较快,第5天,SOD活性达到最高值854.6 U/g,第6天开始下降,到第11天时,其活性为78.8 U/g,远远低于对照组.
基金School Fund of Xuzhou Institute of Technology (XKY200614)~~
文摘The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results show that Se in burdock stem, skin and leaf are 32.40, 48.63, 38.10 μg/g, respectively; Cd in burdock stem, skin and leaf are 0. 160 0, 0. 300 0, 0. 140 0 μg/g, respectively; Cd in burdock stem, skin and leaf are 2. 020, 3. 960, 2. 410 μg/g, respectively. In the ginkgo and ginko leaf, Se contents are 17.63 and 16.91 μg/g, respectively ; for Cd are 0. 181 0 and 0.2020μg/g, respectively ; for Pb are 3. 572 and 4. 021 μg/g, respectively. In garlic, Se, Cd and Pb are 73. 900 0, 6. 900 0 and 0. 390 0, respectively. All the standard deviations of measured results are below 2.3%, recovery rate are from 99% to 101%.
