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| NaCl胁迫对烟草种子萌发及幼苗生理特性的影响 | |
| 引用本文： | 李聪,郭梦阳,韩烈保.NaCl胁迫对烟草种子萌发及幼苗生理特性的影响[J].中国农学通报,2013,29(3):103-107. |
| 作者姓名： | 李聪 郭梦阳 韩烈保 |
| 作者单位： | 1. 北京林业大学草坪研究所暨森林培育与保护省部重点实验室,北京100083 2. 北京第一一九中学,北京100022 3. 长江大学园艺园林学院,湖北荆州434025 |
| 基金项目： | 引进国际先进林业科学技术948项目“转基因植物外源基因高效特异删除技术引进”(2011-4-50);国家自然科学基金项目“麦冬ERF转录因子的克隆与功能研究”(31172255) |
| 摘 要： | 研究不同浓度（质量分数）的NaCl (0、0.3%、0.6%、0.9%、1.2%、1.5%)对烟草种子萌发及幼苗生理特性的影响；测定了相对发芽势、相对发芽率、幼苗根长、以及叶绿素、细胞膜透性、丙二醛含量、脯氨酸含量；随着盐浓度增加，烟草相对发芽势、相对发芽率、根的长度、叶绿素含量呈现下降的趋势；细胞膜透性、脯氨酸含量则表现为持续升高趋势；丙二醛含量呈现先升后降的趋势；在盐浓度为1.2%时，烟草叶片叶绿素含量降幅最大，而此时丙二醛含量达到最大值，这对研究烟草抗盐机制提供了可靠依据。 |
| 关 键 词： | 投影分析 投影分析 |
| 收稿时间： | 2012/2/25 0:00:00 |
| 修稿时间： | 2012/4/12 0:00:00 |
Effects of NaCl Stress on the Seed Germination and Physiological Characteristics of Tobacco |
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| Li Cong,Guo Mengyang,Han Liebao.Effects of NaCl Stress on the Seed Germination and Physiological Characteristics of Tobacco[J].Chinese Agricultural Science Bulletin,2013,29(3):103-107. | |
| Authors: | Li Cong Guo Mengyang Han Liebao |
| Institution: | 1,3(1Institute of Turfgrass Science & Key Laboratory of Silviculture and Conservation of Ministry of Education,Beijing Forestry University,Beijing 100083;2Beijing NO.119 High School,Beijing 100022;3College of Gardening and Horticulture,Yangtze University,Jingzhou Hubei 434025) |
| Abstract: | The aim was to investigate the effect of salt stress on the Seed Germination and Physiological Characteristics of tobacco. The relative germination potential, relative germination rate, root length, chlorophy ll content, Cell membrane permeability, MDA content and proline content were measured. With the increase of NaCl concentration, the relative germination potential, relative germination rate, root length, chlorophy ll content kept decreasing; Cell membrane permeability and proline content kept increasing; the malondiadehyde content increased at first, and then decreased with the increase of NaCl concentration. When the concentration of NaCl was up to 1.2%, the tobacco leaf chlorophy ll content declined to the maximum extent and the malondiadehyde content reached maximum value which provided a reliable basis for the study of tobacco salt tolerance mechanism. |
| Keywords: | salt stress tobacco seeds seed germination physiological characteristics |
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