| 外源SA对盐胁迫下冬小麦幼苗生长的缓解效应及其机理 |
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| 引用本文： | 付乃鑫,贺明荣,诸葛玉平,代兴龙,胡国庆,董元杰. 外源SA对盐胁迫下冬小麦幼苗生长的缓解效应及其机理[J]. 中国农业大学学报, 2019, 24(3): 10-17 |
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| 作者姓名： | 付乃鑫 贺明荣 诸葛玉平 代兴龙 胡国庆 董元杰 |
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| 作者单位： | 山东农业大学资源与环境学院/土肥资源高效利用国家工程实验室;山东农业大学农学院 |
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| 基金项目： | 本研究由国家重点研发计划（2017YFD0201705）；国家重点基础研究发展计划（973计划）项目（2015CB150404）；山东省重点研发计划（2016CYJS05A02）；山东省自主创新及成果转化专项（2014ZZCX07402）资助 |
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| 摘 要： | 为明确外源SA缓解冬小麦盐胁迫的适宜浓度。本研究以冬小麦(Triticum aestivum L.)品种‘山农22’为试验材料,水杨酸(SA)作为调控物质,采用室内营养液培养方法,研究5个浓度的SA(50,100,200,300和500μmol/L)对120mmol/L NaCl胁迫下冬小麦幼苗生长、生理特性的影响。结果表明:添加SA能够缓解盐胁迫对小麦造成的损害。200μmol/L SA可以显著提高小麦叶片光合色素含量、根系活力,促进小麦的生长发育;200μmol/L SA可显著提高抗氧化酶活性,增加游离脯氨酸和可溶性蛋白等渗透调节物质含量,缓解膜质过氧化伤害。本研究所采用的SA浓度中,以200μmol/L SA对冬小麦幼苗盐胁迫的缓解效果最佳。
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| 关 键 词： | 水杨酸 小麦 盐胁迫 生长 生理特性 |
| 收稿时间： | 2018-03-16 |
Effects and mechanisms of exogenous SA alleviating the growth of winter wheat seedlings under salt stress |
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| FU Naixin,HE Mingrong,ZHUGE Yuping,DAI Xinglong,HU Guoqing and DONG Yuanjie. Effects and mechanisms of exogenous SA alleviating the growth of winter wheat seedlings under salt stress[J]. Journal of China Agricultural University, 2019, 24(3): 10-17 |
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| Authors: | FU Naixin HE Mingrong ZHUGE Yuping DAI Xinglong HU Guoqing DONG Yuanjie |
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| Affiliation: | College of Resources and Environment/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer, Shandong Agricultural University, Taian 271018, China,College of Agronomy, Shandong Agricultural University, Taian 271018, China,College of Resources and Environment/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer, Shandong Agricultural University, Taian 271018, China,College of Agronomy, Shandong Agricultural University, Taian 271018, China,College of Resources and Environment/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer, Shandong Agricultural University, Taian 271018, China and College of Resources and Environment/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer, Shandong Agricultural University, Taian 271018, China |
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| Abstract: | |
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| Keywords: | salicylic acid wheat salt stress growth physiological characteristics |
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