[1]闵筱筱,苏晨,滕云,等.盐胁迫对菊花‘紫燕’生长及生理特性的影响[J].北方园艺,2024,(11):63-69.[doi:10.11937/bfyy.20233674]
　MIN Xiaoxiao,SU Chen,TENG Yun,et al.Effects on Growth and Physiological Characteristics of Chrysanthemum ‘Ziyan’ to Salt Stress[J].Northern Horticulture,2024,(11):63-69.[doi:10.11937/bfyy.20233674]
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盐胁迫对菊花‘紫燕’生长及生理特性的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2024年11 页码: 63-69 栏目: 出版日期: 2024-06-15
Title:
Effects on Growth and Physiological Characteristics of Chrysanthemum ‘Ziyan’ to Salt Stress
文章编号:
1001-0009(2024)11-0063-07
作者:
闵筱筱; 苏晨; 滕云; 王志勇; 李佩玲
（信阳农林学院 园艺学院，河南 信阳 464000）
Author(s):
MIN Xiaoxiao; SU Chen; TENG Yun; WANG Zhiyong; LI Peiling
(College of Horticulture,Xinyang Agriculture and Forestry University,Xinyang,Henan 464000)
关键词:
菊花‘紫燕’; 盐胁迫; 生长; 生理特性
Keywords:
chrysanthemum ‘Ziyan’; salt stress; growth; physiological charateristics
分类号:
S 682.1
DOI:
10.11937/bfyy.20233674
文献标志码:
A
摘要:
以菊花‘紫燕’为试材，用不同浓度NaCl溶液（50、100、150、200 mmol·L-1）进行盐胁迫处理，在盐胁迫后测定株高、叶长、叶宽等生长指标，同时测定脯氨酸含量、叶片相对电导率（REC）、叶绿素含量、叶片相对含水量（RWC）、丙二醛（MDA）含量、超氧化物歧化酶（SOD）活性、过氧化物酶（POD）活性等7个生理指标，分析菊花‘紫燕’对盐胁迫的生长和生理响应，以期为菊花‘紫燕’抗盐机制探究及盐碱地应用提供参考依据。结果表明：在盐胁迫下，植株的生长受限，株高较对照降低8.25%~21.67%，叶长、叶宽无显著变化。随着NaCl浓度的增加和胁迫时间的延长，菊花‘紫燕’的RWC、叶绿素含量差异显著，呈现逐渐下降的趋势；MDA含量、REC呈上升趋势；脯氨酸含量呈现先升后降的变化趋势，处理4 d时出现峰值，随后迅速下降；叶片SOD、POD活性随着胁迫时间延长呈现上升趋势。综上，菊花‘紫燕’在盐胁迫下能通过提高抗氧化酶活性，减缓氧化损伤及膜损伤，缓解盐胁迫对植株的损伤。
Abstract:
Chrysanthemum ‘Ziyan’ was used as experimental materials.The plant height,leaf length,leaf width,proline content,leaf relative slectrical conductivity(REC),chlorophyll content,leaf relative water content(RWC),malondialdehyde (MDA) content,superpxide dismutase (SOD) activity and perodidase (POD) activity under different concentrations of NaCl concentrations (50、100、150、200 mmol·L-1) with water treatment as control were studied,in order to provide reference for the salt resistant mechanism and the applicaiotn of salinealkali land.The results showed that under the salt treatment,the growth of chrysanthemum ‘Ziyan’ was inhibited,the plant height decreased by 8.25%-21.67% compared with control,and leaf length and leaf width had no significant change.Salt treatment significantly caused the internal physiological changes of chrysanthemum ‘Ziyan’.The RWC and chlorophyll content showed a gradually decreasing trend.The content of MDA incteased with the extension of stress time,and REC showed an upward trend.Proline content increased firstly and then decreased,with the peak value at 4th day of treatment.SOD and POD activities increased after salinity stress.These results indicated that the plant damage of chrysanthemum ‘Ziyan’ could be alleviated under salt stress by increasing the activity of antioxidant enzymes and membrane damage.

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备注/Memo

第一作者简介：闵筱筱（1989-），女，硕士，讲师，现主要从事园艺植物资源与利用等研究工作。E-mail：2539476242@qq.com.责任作者：李佩玲（1986-），女，博士，副教授，现主要从事观赏植物遗传育种与分子生物学等研究工作。E-mail：lxmlpl@163.com.基金项目：国家自然科学基金委员会青年科学基金资助项目（32002083）；信阳农林学院园艺植物资源与利用科技创新团队资助项目（XNKJTD-012）；信阳农林学院高水平科研孵化器建设基金资助项目（FCL202002）。收稿日期：2023-10-26

更新日期/Last Update: 2024-06-27