[1]田礼欣,李丽杰,刘旋,等.外源海藻糖对盐胁迫下玉米幼苗根系生长及生理特性的影响[J].江苏农业学报,2017,(04):754-759.[doi:doi:10.3969/j.issn.1000-4440.2017.04.005]
 TIAN Li-xin,LI Li-jie,LIU Xuan,et al.Root growth and physiological characteristics of salt-stressed maize seedlings in response to exogenous trehalose[J].,2017,(04):754-759.[doi:doi:10.3969/j.issn.1000-4440.2017.04.005]
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外源海藻糖对盐胁迫下玉米幼苗根系生长及生理特性的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2017年04期
页码:
754-759
栏目:
遗传育种·生理生化
出版日期:
2017-08-30

文章信息/Info

Title:
Root growth and physiological characteristics of salt-stressed maize seedlings in response to exogenous trehalose
作者:
田礼欣李丽杰刘旋毕文双佟昊阳魏湜顾万荣李晶
(东北农业大学农学院,黑龙江哈尔滨150030)
Author(s):
TIAN Li-xinLI Li-jieLIU XuanBI Wen-shuangTONG Hao-yangWEI ShiGU Wan-rongLI Jing
(College of Agronomy, Northeast Agricultural University, Harbin 150030, China)
关键词:
海藻糖盐胁迫玉米根系生理特性
Keywords:
trehalosesalt stressmaizerootphysiological characteristic
分类号:
S513.01
DOI:
doi:10.3969/j.issn.1000-4440.2017.04.005
文献标志码:
A
摘要:
为了探讨施加外源海藻糖对盐胁迫下玉米幼苗根系生长及生理特性的影响,以玉米品种郑单958为材料,采用水培法,利用1/2Hoagland营养液配制不同浓度海藻糖,分析150 mmol/L NaCl胁迫条件下玉米幼苗根系的变化。结果表明,盐胁迫下,玉米幼苗根系鲜质量、干质量、根总长度、根表面积以及根体积均显著下降,与对照相比,分别下降3721%、3571%、3578%、3433%和4042%。不同浓度海藻糖处理后,幼苗根系生长量、相对含水量和根系活力显著提高,MDA含量、H2O2含量以及O2·-产生速率显著降低。其中以10 mmol/L藻糖处理效果最好。说明适宜浓度的海藻糖可以提高盐胁迫下玉米幼苗根系的抗盐性,缓解盐胁迫对玉米幼苗的伤害。
Abstract:
To investigate the effects of exogenous trehalose on the root growth and physiological characteristics of maize seedling under salt stress, maize variety Zhendan958 was applied with different concentrations of trehalose to analyze the response of seedling root system under the stress of 150 mmol/L NaCl by hydroponic experiment. The fresh weight, dry weight, total length, surface area and volume of maize seedling roots decreased significantly under salt stress by 3721%, 3571%, 3578%, 3433% and 4042% respectively. With the applications of trehalose of different concentrations, the growth, relative water content and root vitality of maize seedling root were increased, and the contents of MDA and H2O2 and O2·- generating rate reduced. The concentration of 10 mmol/L trehalose showed the best effect. This indicated that approapriate concentration of trehalose could improve the salt tolerance of maize seedlings and alleviate the damage caused by salt stress.

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备注/Memo

备注/Memo:
收稿日期:2017-02-20 基金项目:国家科技支撑计划项目(2012BAD14B06);“十三五”重点研发计划项目(2017YFD0300405) 作者简介:田礼欣(1993-),男,黑龙江绥化人,硕士研究生,研究方向为玉米高产栽培生理。(E-mail)18845634496@163.com 通讯作者:李晶,(E-mail)jingli1027@163.com
更新日期/Last Update: 2017-09-01