植物研究 ›› 2026, Vol. 46 ›› Issue (3): 425-433.doi: 10.7525/j.issn.1673-5102.2026.03.004
韦凯悦1,2, 苏旭1,2,3, 刘玉萍1,2,3(
), 雷洁琼1,2, 吕扬1,2, 郑莹晖1,2, 才让扎西1,2, 高宣琳1,2, 冯旭1,2
收稿日期:2026-02-14
出版日期:2026-05-20
发布日期:2026-05-29
通讯作者:
刘玉萍
E-mail:lyp8527970@126.com
作者简介:韦凯悦(2003—),女,硕士研究生,主要从事高山植物系统与进化研究。
基金资助:
Kaiyue WEI1,2, Xu SU1,2,3, Yuping LIU1,2,3(
), Jieqiong LEI1,2, Yang LÜ1,2, Yinghui ZHENG1,2, Zhaxi CAIRANG1,2, Xuanlin GAO1,2, Xu FENG1,2
Received:2026-02-14
Online:2026-05-20
Published:2026-05-29
Contact:
Yuping LIU
E-mail:lyp8527970@126.com
摘要:
从全缘叶绿绒蒿(Meconopsis integrifolia)中克隆谷胱甘肽S-转移酶基因(MiGST),通过拟南芥(Arabidopsisthaliana)遗传转化鉴定生物学功能,旨在为全缘叶绿绒蒿不同部位类黄酮开发利用提供理论依据。本研究通过克隆MiGST基因,经生物信息学分析后采用实时荧光定量PCR分析组织表达特性;利用花序浸染法遗传转化拟南芥,采用硝酸铝比色法测定T1代拟南芥转基因株系中总黄酮含量变化。结果表明:MiGST基因CDS全长702 bp,编码234个氨基酸,其编码蛋白相对分子质量约为25 861.91 Da,理论等电点为5.84;MiGST蛋白与罂粟(Papaver somniferum)中GST蛋白亲缘关系最近;MiGST基因具有组织表达特异性,其中花中表达量最高,茎中表达量最低;过表达MiGST基因拟南芥植株总黄酮含量为野生型的1.27倍。本研究证实,过表达MiGST基因可显著提高转基因拟南芥的总黄酮含量,表明MiGST基因在全缘叶绿绒蒿类黄酮跨膜转运及累积过程中具有重要作用。
中图分类号:
韦凯悦, 苏旭, 刘玉萍, 雷洁琼, 吕扬, 郑莹晖, 才让扎西, 高宣琳, 冯旭. 全缘叶绿绒蒿谷胱甘肽S-转移酶基因(MiGST)克隆与功能分析[J]. 植物研究, 2026, 46(3): 425-433.
Kaiyue WEI, Xu SU, Yuping LIU, Jieqiong LEI, Yang LÜ, Yinghui ZHENG, Zhaxi CAIRANG, Xuanlin GAO, Xu FENG. Cloning and Functional Analysis of a Glutathione S-Transferase Gene (MiGST) from Meconopsis integrifolia[J]. Bulletin of Botanical Research, 2026, 46(3): 425-433.
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