ZHANG Huiling,WU Zhengjing,GUO Dalong,et al.Effect of IAA and SA on Physiological Characteristics of Radish Seedlings Under Salt Stress[J].Northern Horticulture,2017,41(08):32-34.[doi:10.11937/bfyy.201708008]
IAA和SA对盐胁迫下萝卜幼苗生理特性的影响
- Title:
- Effect of IAA and SA on Physiological Characteristics of Radish Seedlings Under Salt Stress
- Keywords:
- IAA; SA; seedlings of radish; physiological characteristics
- 文献标志码:
- A
- 摘要:
- 以萝卜为试材，研究了不同浓度的吲哚乙酸（IAA）和水杨酸（SA）(0、0.3、0.6、0.9、1.2、1.5 mmol?L-1)对NaCl胁迫下萝卜幼苗生理特性的影响。结果表明：NaCl胁迫下萝卜幼苗的各项生理指标都发生了显著变化。经适宜浓度的吲哚乙酸和水杨酸处理后，萝卜幼苗的还原糖含量、脯氨酸含量、丙二醛含量和相对电导率显著降低，叶绿素含量显著升高，对盐害有一定的缓解作用。但是浓度过高，又会形成新的胁迫伤害。其中，IAA的最佳浓度为0.9 mmol?L-1，SA的最佳浓度为0.6 mmol?L-1。
- Abstract:
- In the experiment，the effects of different concentrations (0，0.3，0.6，0.9，1.2，1.5 mmol?L-1) of indole-3-acetic acid and salicylic acid on the physiological characteristics of radish seedlings under NaCl stress were studied.The results showed that there were significant changes in the physiological indexes of radish seedlings under NaCl stress.When the seedlings were treated with the proper concentrations of indole-3-acetic acid and salicylic acid，the reducing sugar content，proline content，MDA content and relative conductivity significantly decreased，while the chlorophyll content increased significantly，which had a certain role in mitigation to salt damage.However，if the concentration was too high，there was a new stress injury.According the results，the optimal concentration of indole-3-acetic acid was 0.9 mmol?L-1，and the best concentration of salicylic acid was 0.6 mmol?L-1.
参考文献/References:
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备注/Memo
第一作者简介：张会灵（1983-），女，博士，讲师，现主要从事分子生物学与分子育种等研究工作。E-mail:lug109@163.com.责任作者：张菊平（1968-），女，博士，教授，现主要从事蔬菜遗传育种等研究工作。E-mail:jupingzhang@163.com.基金项目：国家自然科学基金资助项目（31401437）；河南科技大学博士科研启动基金资助项目（4026-13480045）；河南科技大学创新团队资助项目（2015TTD03）。