浙江农业科学 ›› 2026, Vol. 67 ›› Issue (2): 332-336.DOI: 10.16178/j.issn.0528-9017.20240645

• 经济作物 • 上一篇    下一篇

1,8-萘二甲酸酐对二氯喹啉酸胁迫下烟草自由基清除的影响

吕春芳1(), 李海霞1, 孟南2, 王晓军3, 刘华山1()   

  1. 1.河南农业大学 生命科学学院,河南 郑州 450046
    2.河南农业大学 风景园林与艺术学院,河南 郑州 450046
    3.河南农业大学 农学院,河南 郑州 450046
  • 收稿日期:2024-08-07 出版日期:2026-02-28 发布日期:2026-03-07
  • 通讯作者: 刘华山,E-mail:liuhs602@sina.com
  • 作者简介:吕春芳,研究方向为烟草生理生化。E-mail:lvchunfang0506@126.com

Effect of 1,8-naphthalene dicarboxylic anhydride on free radicals scavenging in tobacco under quinclorac stress

LYU Chunfang1(), LI Haixia1, MENG Nan2, WANG Xiaojun3, LIU Huashan1()   

  1. 1.College of Life Sciences,Henan Agricultural University,Zhengzhou 450046,Henan
    2.College of Landscape Architecture and Art,Henan Agricultural University,Zhengzhou 450046,Henan
    3.College of Agronomy,Henan Agricultural University,Zhengzhou 450046,Henan
  • Received:2024-08-07 Online:2026-02-28 Published:2026-03-07

摘要:

为探究1,8-萘二甲酸酐(NA)对二氯喹啉酸胁迫下烟草叶片中超氧阴离子自由基、羟基自由基的清除率以及抗氧化率的影响,以烤烟K326为材料,采用盆栽方法,于八叶期喷施NA,设置3种处理:正常处理(正常土壤+清水),危害处理(危害土壤+清水),NA修复处理(危害土壤+NA)。结果表明,3种处理烟草叶片中自由基清除率和抗氧化率随着处理时间的延长而升高,超氧阴离子自由基清除率、羟基自由基清除率及抗氧化率大小依次为:正常处理>NA修复处理>危害处理。该研究表明,NA处理促进二氯喹啉酸胁迫下烟草叶片的自由基清除,进而对烟草有一定的修复作用。

关键词: 二氯喹啉酸, 1, 8-萘二甲酸酐, 烟草, 自由基

Abstract:

To investigate the effects of 1,8-naphthalene dicarboxylic anhydride(NA)on the scavenging rate of superoxide anion radicals and hydroxyl radicals,as well as the antioxidant rate in tobacco leaves under quinclorac stress,K326 flue-cured tobacco was used as the material. A pot experiment was conducted by spraying NA at the eight-leaf stage,with three treatments established:normal treatment(normal soil + clean water),stress treatment(stressed soil + clean water),and NA reparative treatment(stressed soil + NA). The results showed that the scavenging rate of free radicals and the antioxidant rate in tobacco leaves increased with prolonged treatment. The order of scavenging rates of superoxide anion radicals,hydroxyl radicals,and antioxidant rates was as follows:normal treatment > NA reparative treatment > stress treatment. This study showed that NA treatment promoted free radical scavenging in tobacco leaves under quinclorac stress,thereby having a certain reparative effect on tobacco.

Key words: quinclorac, 1, 8-naphthalene dicarboxylic anhydride, tobacco, free radical

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