[1]张彦妮,刘奕佳,李博.干旱胁迫及复水对大花飞燕草幼苗生理特性的影响[J].北方园艺,2015,39(09):58-62.[doi:10.11937/bfyy.201509018]
　ZHANG Yan-ni,LIU Yi-jia,LI Bo.Effect of Drought Stress and Rewatering on Physiological Characteristics of Delphinium grandiflorum Seedling[J].Northern Horticulture,2015,39(09):58-62.[doi:10.11937/bfyy.201509018]
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干旱胁迫及复水对大花飞燕草幼苗生理特性的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第39卷 期数: 2015年09 页码: 58-62 栏目: 出版日期: 2015-05-15
Title:
Effect of Drought Stress and Rewatering on Physiological Characteristics of Delphinium grandiflorum Seedling
文章编号:
1001-0009（2015）09-0058-05
作者:
张彦妮; 刘奕佳; 李博
（东北林业大学 园林学院，黑龙江 哈尔滨 150040）
Author(s):
ZHANG Yan-ni; LIU Yi-jia; LI Bo
（College of Landscape Architecture，Northeast Forestry University，Harbin，Heilongjiang 150040）
关键词:
大花飞燕草; 干旱胁迫; 生理特性
Keywords:
Delphinium grandiflorum; drought stress; physiological property
分类号:
S 681.9
DOI:
10.11937/bfyy.201509018
文献标志码:
A
摘要:
以大花飞燕草幼苗为试材，研究了干旱胁迫及复水条件对大花飞燕草幼苗膜脂过氧化和保护酶活性、渗透物质等生理特性的影响。结果表明：随干旱胁迫时间的延长，细胞膜透性和丙二醛（MDA）含量不断增加，在干旱胁迫的第20天，细胞膜透性和MDA含量均达到最大，此时植物受害严重。叶片中脯氨酸（Pro）含量迅速增加，复水后又开始下降，膜透性得到了一定的恢复。可溶性蛋白质含量不断下降。复水后，植物的可溶性蛋白质含量有所升高。当胁迫20 d时，其体内可溶性蛋白质含量最低。随着时间的推移，干旱胁迫下植株体内的过氧化物酶（POD）活性、超氧化物歧化酶（SOD）活性均呈先上升后下降的趋势，复水后，POD、SOD活性呈缓慢升高的趋势。第10天时，POD、SOD活性达到最大值，说明此时植物自身有较高的清除活性氧的能力。
Abstract:
Taking Delphinium grandiflorum seedlings as test materials，effect of soil drought stress and rewatering on membrane lipid peroxidation，protective enzyme activity and the permeable material of seedlings were studied.The results showed that with the prolonging of drought stress time,cell membrane permeability and malondialdehyde rose significantly，in section 20 days of drought stress，the cell membrane permeability and malondialdehyde content reached the maximum，the plant was severely damaged.Proline content in leaves increased rapidly，after rewatering began to decline,but the content of soluble protein in the opposite.With the passage of time,the peroxidase and superoxide dismutase activity showed a downward trend after the first rise.After rewatering，peroxidase and superoxide dismutase activity showed a slowly increasing trend.In section 10 days of drought stress,the peroxidase and superoxide dismutase activity reached the maximum，the results showed that the plant had a higher ability of scavenging active oxygen.

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备注/Memo

第一作者简介：张彦妮（1974-），女，博士，副教授，研究方向为园林花卉的繁殖栽培及育种。E-mail：ynzhang808@126.com.

基金项目：黑龙江省教育厅科研资助项目（12543012）。

更新日期/Last Update: 2015-08-01