[1]马芳蕾,陈莹,聂晶晶,等.4种芒属观赏草对干旱胁迫的生理响应[J].森林与环境学报,2016,36(02):180-187.[doi:10.13324/j.cnki.jfcf.2016.02.009]
 MA Fanglei,CHEN Ying,NIE Jingjing,et al.Physiological response of 4 species of Miscanthus ornamental grass to drought stress[J].,2016,36(02):180-187.[doi:10.13324/j.cnki.jfcf.2016.02.009]
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4种芒属观赏草对干旱胁迫的生理响应()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
36
期数:
2016年02期
页码:
180-187
栏目:
出版日期:
2016-04-15

文章信息/Info

Title:
Physiological response of 4 species of Miscanthus ornamental grass to drought stress
作者:
马芳蕾12 陈莹1 聂晶晶1 林思祖3
1. 福建农林大学园林学院, 福建福州 350002;
2. 内蒙古赤峰市林西县规划局, 内蒙古林西 025250;
3. 福建农林大学林学院, 福建福州 350002
Author(s):
MA Fanglei12 CHEN Ying1 NIE Jingjing1 LIN Sizu3
1. College of Landscape Architecture, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;
2. Linxi County Planning Bureau, Linxi, the Inner Mongolia Autonomous Region 025250, China;
3. College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
关键词:
聚乙二醇6000干旱胁迫生理生化指标综合评价
Keywords:
polyethylene glycol 6000drought stressphysiological and biochemical indicescomprehensive assessment
分类号:
S68
DOI:
10.13324/j.cnki.jfcf.2016.02.009
摘要:
为研究芒属观赏草的抗旱性,采用聚乙二醇(PEG)模拟不同程度的干旱胁迫(10%、20%、30%),研究干旱胁迫对1年生芒属4种观赏草生理生化指标的影响。测定其质膜透性,叶绿素a、叶绿素b、可溶性糖、丙二醛(MDA)等的含量、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)、抗坏血酸过氧化物酶(AsA-POD)等4种酶活性共9个生理生化指标,并根据测定值判断4种观赏草的抗旱性强弱。结果表明,干旱胁迫下4种芒属观赏草的相对电导率、可溶性糖含量、MDA含量升高;AsA-POD活性、叶绿素a、b含量降低;SOD活性、CAT活性、POD活性先升高后降低。对4种观赏草的9个生理生化指标进行方差分析发现,在最高胁迫浓度时,各指标与对照组均存在显著差异(P<0.05)。采用模糊数学隶属函数分析法综合评价,抗旱性强弱顺序为斑叶芒> 细叶芒> 花叶芒> 芒。
Abstract:
To investigate the drought resistance of 4 species of Miscanthus ornamental grass, polyethylene glycol (PEG) was used to simulate different levels of drought stress (10%,20%,30%) and make clear the effects of drought stress on the physiological and biochemical indices of 4 species of annual Miscanthus ornamental grass. 9 physiological and biochemical indices such as membrane permeability, chlorophyll a,chlorophyll b,soluble sugar, MDA, SOD, CAT, POD,AsA-POD were measured to assess the drought resistance of 4 species of Miscanthus ornamental grass. With the increase of drought stress, the relative electric conductivities, soluble sugar concentration and MDA increased significantly while AsA-POD, chlorophyll a and chlorophyll b decreased significantly. Activities of SOD, CAT and POD increased and then decreased. According to variance analysis there was significant difference in the indices between the treated groups and the control(P<0.05) at the highest stress concentration. The drought resistance of 4 ornamental grass species of Miscanthus was evaluated preliminarily with subordinate function analysis and the finally order of the drought resistance was as follows:M. sinensis ‘Zebrinus’ > M. sinensis ‘Gracilimus’ > M. sinensis ‘Variegatus’ > M. sinensis Anderss..

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备注/Memo

备注/Memo:
收稿日期:2015-04-09;改回日期:2015-09-11。
基金项目:福建省教育厅科技项目(JB13052)。
作者简介:马芳蕾(1987-),女,硕士研究生,从事园林植物抗旱性研究。E-mail:519174848@qq.com。
通讯作者:陈莹(1981-),女,讲师,博士,从事园林植物抗旱性研究。E-mail:25220528@qq.com。
更新日期/Last Update: 1900-01-01