| 不同中性盐胁迫对甜菜幼苗光合作用和抗氧化酶系统的影响 |
| |
| 引用本文： | 蔡琪琪,王堽,董寅壮,於丽华,王宇光,耿贵.不同中性盐胁迫对甜菜幼苗光合作用和抗氧化酶系统的影响[J].作物杂志,2022,38(1):130-50. |
| |
| 作者姓名： | 蔡琪琪 王堽 董寅壮 於丽华 王宇光 耿贵 |
| |
| 作者单位： | 1黑龙江大学生命科学学院,150080,黑龙江哈尔滨2黑龙江大学现代农业与生态环境学院,150080,黑龙江哈尔滨 |
| |
| 基金项目： | 国家自然科学基金“甜菜T510品系BvBHLH93转录因子功能及其耐盐调控机制分析”(31701487);黑龙江省自然科学基金“转录因子BvWRKY62调控甜菜耐盐性的分子机理研究”(YQ2020037C)。 |
| |
| 摘 要： | 为了研究不同中性盐胁迫对甜菜危害的差异,选择中性盐NaCl和Na2SO4及二者的混合盐（NaCl:Na2SO4=2:1）对甜菜幼苗进行中度（140mmol/L Na+）和重度（280mmol/L Na+）胁迫,分析2种中性盐胁迫对甜菜光合作用及抗氧化酶系统的影响。采用室内水培方法,分析不同盐胁迫下甜菜幼苗的光合色素含量、光合参数及抗氧化酶活性的变化。结果表明,与对照组相比,中性盐胁迫下甜菜幼苗的光合色素含量及光合作用相关指标降低,降低幅度表现为Na2SO4>混合盐>NaCl,表明Na2SO4胁迫对甜菜光合作用的影响最大,混合盐次之,NaCl最小;与对照组相比,盐胁迫后的甜菜抗氧化酶活性升高,上升幅度也表现为Na2SO4>混合盐>NaCl。综上可知,Na2SO4对甜菜幼苗的毒害作用远大于NaCl,该结果为不同盐碱地区甜菜筛选种植及生产布局提供了理论依据。
|
| 关 键 词： | 中性盐胁迫 甜菜 光合作用 抗氧化酶系统 |
| 收稿时间： | 2021-03-22 |
Effects of Different Neutral Salt Stress on Photosynthesis and Antioxidant Enzyme System of Sugar Beet Seedlings |
| |
| Cai Qiqi,Wang Gang,Dong Yinzhuang,Yu Lihua,Wang Yuguang,Geng Gui.Effects of Different Neutral Salt Stress on Photosynthesis and Antioxidant Enzyme System of Sugar Beet Seedlings[J].Crops,2022,38(1):130-50. |
| |
| Authors: | Cai Qiqi Wang Gang Dong Yinzhuang Yu Lihua Wang Yuguang Geng Gui |
| |
| Affiliation: | 1College of Life Sciences, Heilongjiang University, Harbin 150080, Heilongjiang, China2College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, Heilongjiang, China |
| |
| Abstract: | In order to explore the differences in the harm of sugar beet stressed by different types of neutral salt, two neutral salts (NaCl and Na2SO4) and their mixed salts (NaCl:Na2SO4=2:1) were selected to treat sugar beet seedlings under moderate stress (140mmol/L Na+) and severe stress (280mmol/L Na+), and the difference in the effects of the two kinds of neutral salt stress on the photosynthesis and antioxidant enzyme system of sugar beet was analyzed. The changes in photosynthetic pigment content, photosynthetic parameters and antioxidant enzyme activities of sugar beet seedlings treated with different neutral salts were analyzed. The result showed that the photosynthetic pigment content and photosynthesis related indexes of sugar beet seedlings under neutral salt stress decreased compared with the control group, decrease range was Na2SO4 > mixed salt > NaCl, and the Na2SO4 treatment was more severely affected. It was found that the antioxidant enzyme activity of sugar beet increased under salt stress compared with the control group, the rising range was Na2SO4 > mixed salt > NaCl, and the change of Na2SO4 treatment group was more obvious. It was finally determined that the toxic effect of Na2SO4 on sugar beet seedlings was far greater than that of NaCl. This study provide a theoretical basis for the selection, planting and production layout of sugar beet in different saline-alkali regions. |
| |
| Keywords: | Neutral salt stress Sugar beet Photosynthesis Antioxidant enzyme system |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《作物杂志》浏览原始摘要信息 |
|
点击此处可从《作物杂志》下载全文 |
|
