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| 一氧化氮参与调节UV-B诱导的豌豆幼苗生长抑制 | |
| 引用本文： | 曲颖,王弋博,安黎哲.一氧化氮参与调节UV-B诱导的豌豆幼苗生长抑制[J].天水师范学院学报,2009,29(5):31-34. |
| 作者姓名： | 曲颖 王弋博 安黎哲 |
| 作者单位： | 1. 中国科学院近代物理研究所,空间辐射生物组,甘肃,兰州,730000 2. 天水师范学院,生命科学与化学学院,甘肃,天水,741001 3. 兰州大学,生命科学院,甘肃,兰州,741001;中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃,兰州,730000 |
| 基金项目： | Supported by the＂Foundation for doctor in West China＂of＂ Talent Training Program for Young Scientist in West China＂of the Chinese Academy of Science. |
| 摘 要： | 对豌豆幼苗5天生长期内紫外线-B（UV-B）辐射对豌豆茎伸长生长和一氧化氮（NO）释放率的影响进行了研究．实验结果表明，UV-B辐射促进了豌豆茎中的N0释放，同时抑制豌豆茎伸长生长；外源NO供体根际处理豌豆幼苗，与UV-B辐射的上述效应相似；而用N0清除剂（PTTO）处理豌豆幼苗会产生和UV-B辐射相反的效应．即增加了茎的伸长．由此可推测．NO也许作为信号参与调节UV-B辐射诱导的生长抑制． |
| 关 键 词： | UV-B辐射 一氧化氮 茎伸长 豌豆 |
Nitric oxide involved in ultraviolet-B induced growth inhibition of pea seedlings |
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| Ying Qu,Yibo Wang,Lizhe An.Nitric oxide involved in ultraviolet-B induced growth inhibition of pea seedlings[J].Journal of Tianshui Normal University,2009,29(5):31-34. | |
| Authors: | Ying Qu Yibo Wang Lizhe An |
| Institution: | 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou Gansu 730000, China; 2. School of Life Science and Chemistry, Tianshui Normal University, Tianshui Gansu 741001, China; 3. School of Life Sciences, Lanzhou University, Lanzhou Gansu, 730000, China; 4. State Key Lab of Frozen Soil and Engineering, Cold and Arid Region Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu, 730000, China) |
| Abstract: | The effects of ultraviolet-B (UV-B) radiation on stem elongation growth and the rate of nitric oxide (NO) release were evaluated in stems of pea (Pisum sativum L.) seedlings during a period of 5 days growth. The results indicated that UV-B radiation promoted NO release and led to the inhibition of pea stems elongation. Similarly, exogenous NO donation to the rhizospheric zone of pea seedlings imitated the responses of stems to UV-B radiation. NO scavenger (PTIO) had the opposite responses to UV-B radiation, such as increased stems elongation. NO might be involved in growth inhibition of pea seedlings induced by UV-B radiation. |
| Keywords: | UV-B radiation nitric oxide stem elongation Pisum sativum |
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