|本期目录/Table of Contents|

[1]张健伟,蒋瑶,余国峰,等.外源多胺对低温胁迫下辣椒幼苗生理特性的影响[J].江苏农业科学,2025,53(8):152-160.
 Zhang Jianwei,et al.Effects of exogenous polyamines on physiological characteristics of pepper under cold stress[J].Jiangsu Agricultural Sciences,2025,53(8):152-160.
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外源多胺对低温胁迫下辣椒幼苗生理特性的影响(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第8期
页码:
152-160
栏目:
园艺与林学
出版日期:
2025-04-20

文章信息/Info

Title:
Effects of exogenous polyamines on physiological characteristics of pepper under cold stress
作者:
张健伟12蒋瑶1余国峰2陈仙君1李焕秀2
1.凯里学院大健康学院,贵州凯里 556000; 2.四川农业大学园艺学院,四川成都 611100
Author(s):
Zhang Jianweiet al
关键词:
辣椒多胺低温胁迫抗氧化酶光合荧光参数生理特性
Keywords:
-
分类号:
S641.301
DOI:
-
文献标志码:
A
摘要:
为研究外源多胺对低温胁迫下辣椒的缓解作用,以得荣树椒为试验材料,比较叶面喷施腐胺(Put)、亚精胺(Spd)、精胺(Spm)(浓度均为0.5 mmol/L)对低温胁迫下辣椒幼苗生理特性的影响。结果表明,外源喷施Put、Spd、Spm预处理对低温下辣椒幼苗的胁迫有明显的缓解作用。其中,在低温处理24 h时,Spd处理的相对电导率(REC)、丙二醛(MDA)含量、超氧阴离子(O-2·)含量、过氧化氢(H2O2)含量分别较CK降低了30.77%、37.79%、35.13%、23.4%;Spm处理的REC、MDA含量、O-2·含量、H2O2含量分别较CK下降24.16%、29.40%、20.78%、34.53%;Put处理的REC、MDA、O-2·、H2O2分别较CK降低19.56%、24.18%、19.10%、7.34%。此外,外源Spd处理的渗透调节物质含量、抗氧化酶活性、抗坏血酸-谷胱甘肽(AsA-GSH)循环相关酶活性、光合荧光参数、多胺含量及多胺代谢相关酶活性均显著高于CK。综上,叶面喷施多胺既可通过提高叶片渗透调节能力、抗氧化酶活性来保护叶片细胞膜的完整性,进而缓解低温胁迫对光合作用的抑制,亦可通过促进多胺代谢相关酶活性及游离态多胺含量,从而提高辣椒幼苗对低温的抗性,其中以喷施0.5 mmol/L Spd的效果最优,其次为喷施0.5 mmol/L Spm处理。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2024-05-06
基金项目:凯里学院博士专项课题(编号:BS20240213);贵州省教育厅青年科技人才成长项目(编号:黔教技[2021]233);贵州山地特色园艺作物分子育种与品种创制重点实验室资助项目(编号:黔教技[2022]053);四川省蔬菜育种攻关项目(编号:2021YFYZ0022)。
作者简介:张健伟(1990—),男,重庆人,博士,研究方向为蔬菜逆境生理生态及遗传育种。E-mail:741104602@qq.com。
通信作者:李焕秀,博士,教授,博士生导师,研究方向为蔬菜生物技术和遗传育种。E-mail:Huanxiuli62@gmail.com。
更新日期/Last Update: 2025-04-20