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| He-Ne激光对小麦DNA UV-B损伤修复的影响 | |
| 引用本文： | 韩榕,王勋陵,岳明.He-Ne激光对小麦DNA UV-B损伤修复的影响[J].中国激光,2002,29(9):859-863. |
| 作者姓名： | 韩榕 王勋陵 岳明 |
| 作者单位： | 1. 西北大学生命科学学院,陕西西安,710069;山西师范大学生命科学学院,山西临汾,041004 2. 西北大学生命科学学院,陕西西安,710069;兰州大学生命科学学院,甘肃兰州,730000 3. 西北大学生命科学学院,陕西西安,710069 |
| 基金项目： | 国家自然科学基金(编号:39970126) |
| 摘 要： | 研究并分析了He-Ne激光对小麦DNA UV-B损伤修复的影响和机理,以探明激光对UV-B损伤修复的影响途径及机制。结果表明,小麦对增强UV-B辐射损伤具有一定的切除修复能力,切除修复的高峰期发生在UV-B辐射后4～6h内;He-Ne激光主要通过促进小麦的切除修复途径影响小麦对 UV-B损伤的修复,在对损伤DNA的切除及DNA的修复合成两方面均有不同程度的促进作用,其切除高峰期发生在UV-B辐射后4～6h;DNA的修复合成高峰期在辐射后6～7h。 |
| 关 键 词： | 小麦 UV-B He-Ne激光 DNA损伤修复 |
| 收稿时间： | 2001/4/27 |
Influence of He-Ne Laser Irradiation on the Damage and Repair of Wheat Seedling by Enhanced UV-B Radiation |
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| HAN Rong WANG Xun-ling,YUE Ming Institute of Life Sciences,Northwest University,Xi'an,Shansci Institute of Life Sciences,Sharuri Normal University,Lin fen,Shanxi Institute of Life Sciences,Lanzhou University,Lanzhou,Gansu.Influence of He-Ne Laser Irradiation on the Damage and Repair of Wheat Seedling by Enhanced UV-B Radiation[J].Chinese Journal of Lasers,2002,29(9):859-863. | |
| Authors: | HAN Rong WANG Xun-ling YUE Ming Institute of Life Sciences Northwest University Xi'an Shansci Institute of Life Sciences Sharuri Normal University Lin fen Shanxi Institute of Life Sciences Lanzhou University Lanzhou Gansu |
| Affiliation: | HAN Rong WANG Xun-ling,YUE Ming Institute of Life Sciences,Northwest University,Xi'an,Shansci 710069 Institute of Life Sciences,Sharuri Normal University,Lin fen,Shanxi 041004 Institute of Life Sciences,Lanzhou University,Lanzhou,Gansu 730000 |
| Abstract: | The result shows that the wheat seedling has partly ability of excision repair, and the time of repair peak is about from four to six hours after the UV-B radiation. By excision repair pathway, the repair for the removal of damage induced by UV-B radiation from cellular DNA of the wheat can be influenced by He-Ne laser irradiation. The ability of excision repair of the wheat can be enhanced by He-Ne laser irradiation, and the excision effect of the He-Ne laser irradiation is obviously at the excision peak (at five hours) . The peak of DNA repair synthesis was from six to seven hours after treated by He-Ne laser and UV-B irradiation. |
| Keywords: | wheat ultraviolet-B He-Ne laser DNA damage and repair |
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