| PEG渗调对苦瓜种子活力和膜脂过氧化的影响 |
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| 引用本文： | 黄祥富,蒋明兰.PEG渗调对苦瓜种子活力和膜脂过氧化的影响[J].种子,1999(2):7-9. |
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| 作者姓名： | 黄祥富 蒋明兰 |
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| 作者单位： | [1]中山大学生命科学学院 [2]西江大学生物系 |
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| 摘 要： | １５％￣３５％ＰＥＧ能提高苦瓜种子活力，但以２５％ＰＥＧ渗调效果最好，经２５％ＰＥＧ渗调４小时，发芽率、生长势和活力指数分别由对照的６２．５、３．０５和１．９５提高到９０．６、７．８８和７．１５。实验表明，ＰＥＧ可明显提高苦弧种子ＳＯＤ和ＣＡＴ的活性，并能抑制ＬＯＸ的活性。经２５％ＰＥＧ处理后ＳＯＤ和ＣＡＴ的活性分别由对照的６２．０、７．２提高到１１１．８和１１．４，ＬＯＸ活性由１．２７降低到０．
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| 关 键 词： | 苦瓜 种子 渗透调节 种子活力 膜脂过氧化 PEG |
The Effect of Osmoconditioning with PEG on the Vigor of Balsampear (Momordica charantia L.) Seeds and Peroxidation of Cell Membrance Lipids |
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| Huang Xiangfu.The Effect of Osmoconditioning with PEG on the Vigor of Balsampear (Momordica charantia L.) Seeds and Peroxidation of Cell Membrance Lipids[J].Seed,1999(2):7-9. |
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| Authors: | Huang Xiangfu |
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| Abstract: | The vigor of balsampear seeds could be raised by osmoconditioning with 15 % - 35 % concentration PEG, and the effect of 25% PEG was best. After soaking for 4 hours in 25% PEG solution, germination percentage, germination index and vigor index were in creased from 62. 5,5. 27, 1. 95 to 90. 6, 7. 3 and 7. 15 respectively. The result showed the activities of SOD and CAT were increased by osmoconditioning with PEG, and the activity of LOX was declined. After osmoconditioning with 25% PEG, the permeability of ecll membrance was improved and electral conductivity of the solution decreased. |
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| Keywords: | PEG osmoconditioning Balsampear seed Seed vigor Peroxidation of membrance lipid |
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