[1]徐世静,肖艳,王晓玲,等.褪黑素对干旱胁迫白菜生长生理及根际微生态的影响[J].江苏农业科学,2025,53(14):193-200.
 Xu Shijing,et al.Effects of melatonin on growth physiology and rhizosphere microecology of Chinese cabbage under drought stress[J].Jiangsu Agricultural Sciences,2025,53(14):193-200.
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褪黑素对干旱胁迫白菜生长生理及根际微生态的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第14期
页码:
193-200
栏目:
园艺与林学
出版日期:
2025-07-20

文章信息/Info

Title:
Effects of melatonin on growth physiology and rhizosphere microecology of Chinese cabbage under drought stress
作者:
徐世静1肖艳1王晓玲1原让花1常怀成1张玉红1夏彦莉1张瑞平1原淑玉2郭志伟1
1.新乡市农业科学院,河南新乡 453000; 2.河南金蕾种苗有限公司,河南新乡 453000
Author(s):
Xu Shijinget al
关键词:
干旱胁迫白菜褪黑素形态特性生理特性微生物数量土壤酶活性
Keywords:
-
分类号:
S634.301
DOI:
-
文献标志码:
A
摘要:
解析外源褪黑素对白菜生长生理及根际微生态的影响,旨在为研究白菜的抗旱机制提供理论支撑。采用盆栽自然干旱法,研究不同浓度(50、100、150、200 μmol/L)褪黑素对干旱胁迫下白菜骨干材料J39290幼苗生长生理及土壤微生物数量、酶活性的影响。结果表明,叶面施用100、150 μmol/L 褪黑素可显著提高干旱胁迫下白菜幼苗的株高、茎粗和根长;与干旱处理相比,4种浓度褪黑素均可显著降低白菜幼苗的丙二醛含量,增加根系活力和脯氨酸含量,超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性仅在150 μmol/L褪黑素处理下增加,过氧化物酶(POD)活性和可溶性糖含量仅在50、100 μmol/L褪黑素处理下显著增加。与对照相比,干旱胁迫后白菜根际土壤细菌、真菌、放线菌数量及土壤酶活性均显著降低;4种浓度褪黑素处理均能显著增加干旱胁迫下细菌、放线菌的数量,真菌数量仅在50、100 μmol/L褪黑素处理下分别增加16.9%、29.2%,脲酶、过氧化氢酶活性仅在100 μmol/L褪黑素处理下显著增加,碱性磷酸酶活性仅在50、100 μmol/L褪黑素处理下分别显著增加40.7%、44.5%。平均隶属函数值综合评估结果显示,100 μmol/L褪黑素处理的抗旱性最强。综上,褪黑素能通过增强抗氧化酶活性、提高渗透调节物质含量、减轻膜质过氧化程度、改善土壤质量等来提高白菜幼苗的耐旱性,且褪黑素浓度为100 μmol/L时效果最佳。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2024-07-09
基金项目:河南现代农业产业技术体系建设专项(编号:HARS-22-07-G3);河南省农业良种联合攻关项目(编号:2022010504);河南省科技攻关项目(编号:252102110313)。
作者简介:徐世静(1989—),女,河南卫辉人,博士,助理研究员,主要从事大白菜抗病抗逆等研究工作。E-mail:xushijing0621@163.com。
通信作者:原让花,硕士,研究员,主要从事大白菜遗传育种等研究工作。E-mail:yuanranghua123@163.com。
更新日期/Last Update: 2025-07-20