[1]王新昊,董韦,金培源,等.小白菜响应干旱胁迫的生理和转录组分析[J].江苏农业科学,2026,54(8):179-185.
 Wang Xinhao,et al.Physiological and transcriptome analysis of Brassica campestris ssp. chinensis in response to drought stress[J].Jiangsu Agricultural Sciences,2026,54(8):179-185.
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小白菜响应干旱胁迫的生理和转录组分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第8期
页码:
179-185
栏目:
干旱胁迫作物影响
出版日期:
2026-04-20

文章信息/Info

Title:
Physiological and transcriptome analysis of Brassica campestris ssp. chinensis in response to drought stress
作者:
王新昊1董韦2金培源3李家丽4李成忠1
1.江苏农牧科技职业学院,江苏泰州 225300; 2.江苏徐淮地区徐州农业科学研究所,江苏徐州 221131; 3.南京农业大学,江苏南京 210014; 4.江苏第二师范学院,江苏南京 211200
Author(s):
Wang Xinhaoet al
关键词:
干旱胁迫转录组生理小白菜
Keywords:
-
分类号:
S634.301
DOI:
-
文献标志码:
A
摘要:
为探究小白菜对干旱胁迫响应的生理和分子机制,以小白菜品种矮脚黄为试验材料,研究质量浓度0(CK)、5%(T1)、10%(T2)聚乙二醇(PEG-6000)溶液模拟干旱胁迫24 h下,小白菜叶片的抗氧化酶活性、渗透调节物质等生理指标;同时对CK和T2组叶片样品进行转录组分析。结果显示,与CK相比,T1、T2的可溶性糖、可溶性蛋白、脯氨酸积累量升高,且T2较T1的升幅大;T1、T2的超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性增强,且T2较T1的增幅大。通过转录组分析发现,T2与CK之间共获得6 215个差异表达基因(DEG),其中2 583个基因上调,3 632个基因下调。KEGG富集分析发现,这些DEG显著富集于次生代谢物的生物合成、光合作用-天线蛋白、氮代谢、色氨酸代谢、光合作用、丙酮酸代谢、植物激素信号转导、赖氨酸代谢、MAPK信号通路、氨基酸的生物合成、淀粉和蔗糖代谢、果糖和甘露糖代谢等12个代谢通路。此外,筛选到239个转录因子,包括MYB、bHLH、bZIP、NAC、WRKY、C2H2、AP2-EREBP等。综合分析表明,小白菜通过生理响应和调控大量抗旱基因及转录因子的表达,能够有效适应干旱胁迫环境。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2025-11-30
基金项目:泰州市中药材种质资源综合利用工程研究中心基金(编号:泰发改发[2023]133号)。
作者简介:王新昊(1991—),男,江苏泰州人,实验师,主要从事蔬菜杂交育种和抗逆性研究工作。E-mail:1194816704@qq.com。
通信作者:李成忠,博士,教授,主要从事蔬菜栽培生理生态及应用等研究工作。E-mail:3254808799@qq.com。
更新日期/Last Update: 2026-04-20