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中国农学通报 ›› 2023, Vol. 39 ›› Issue (27): 110-117.doi: 10.11924/j.issn.1000-6850.casb2023-0080

• 生物科学 • 上一篇    下一篇

BvHIPP24介导甜菜应答镉胁迫的作用分析

黄烁淇1,2(), 赵晓鑫2,3, 翟妍2,3, 倪渊嵘2,3, 鲁振强1(), 刘大丽2,3()   

  1. 1 黑龙江大学省高校生化与分子生物学重点实验室/黑龙江大学生命科学学院,哈尔滨 150080
    2 国家甜菜种质中期库,哈尔滨 150080
    3 黑龙江省普通高等学校甜菜遗传育种重点实验室/黑龙江大学现代农业与生态环境学院,哈尔滨 150080
  • 收稿日期:2023-01-23 修回日期:2023-03-15 出版日期:2023-09-25 发布日期:2023-09-22
  • 通讯作者: 鲁振强,男,1965年出生,吉林长春人,教授,博士,研究方向:植物分子生物学。通信地址:150080 黑龙江省哈尔滨市南岗区学府路74号 黑龙江大学生命科学学院,Tel:0451-86609494,E-mail:zhenqianglu@163.com。刘大丽,女,1981年出生,辽宁盘锦人,副研究员,博士,研究方向:作物种质资源与抗性生理。通信地址:150080 黑龙江省哈尔滨市南岗区学府路74号 黑龙江大学现代农业与生态环境学院,Tel:0451-86609494,E-mail:daliliu_hlju@163.com。
  • 作者简介:

    黄烁淇,女,2000年出生,黑龙江伊春人,在读研究生,研究方向:分子生物学。通信地址:150080 黑龙江省哈尔滨市南岗区学府路74号 黑龙江大学,Tel:19804581853,E-mail:

  • 基金资助:
    黑龙江省自然科学基金项目“BvHIPP24基因在能源甜菜重金属镉污染生物修复中的分子机制研究”(LH2019C057); 甜菜种质资源精准鉴定(19230709); 普查收集甜菜种质资源鉴定评价与编目入库项目(19230801); 国家糖料产业技术体系项目“甜菜种质资源鉴定与新种质创制”(CARS-170102); 黑龙江省教育厅基本科研业务费“镉胁迫下能源甜菜金属伴侣蛋白BvHIPPs家族成员的应答机制和功能研究”(2022-KYYWF-1070)

Analysis of BvHIPP24 Involved in Sugar Beet Response to Cadmium Stress

HUANG Shuoqi1,2(), ZHAO Xiaoxin2,3, ZHAI Yan2,3, NI Yuanrong2,3, LU Zhenqiang1(), LIU Dali2,3()   

  1. 1 Key Laboratory of Biochemistry and Molecular Biology/College of Life Sciences, Heilongjiang University, Harbin 150080
    2 National Beet Germplasm Mid-term Bank, Harbin 150080
    3 Key Laboratory of Beet Genetics and Breeding/College of Modern Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080
  • Received:2023-01-23 Revised:2023-03-15 Published-:2023-09-25 Online:2023-09-22

摘要:

为探究甜菜重金属相关异戊二烯化植物蛋白24(BvHIPP24)在重金属镉胁迫下的作用机制,本研究利用生信方法预测了该基因上游的顺式作用元件、转录因子和下游的互作蛋白,并分析了它们在镉胁迫下的转录表达特性。结果表明,BvHIPP24含有CGTCA-motif、生长素类、光响应、MYB结合、厌氧诱导和水杨酸应答相关的作用元件;转录因子BVRB_2g046790、BVRB_1g021800和BVRB_6g128880可能参与BvHIPP24的转录调控;BvHIPP24的互作蛋白主要包括SOD、NaKR1-like、COX1、MT2、NaKR3、REP1、RCA和LHCP等,它们可能通过与重金属离子结合参与离子运输和维持细胞内环境稳态。转录组测序结果表明BvHIPP24及互作蛋白的转录表达均受到镉胁迫的调控。综上推测,BvHIPP24主要通过上游转录因子的调控表达,直接或间接的与互作蛋白共同介导镉离子螯合及解毒。本研究为进一步揭示甜菜对镉胁迫的响应机制提供了参考。

关键词: 甜菜, 重金属相关异戊二烯化植物蛋白(HIPP), 镉胁迫, 蛋白互作, 生物信息学

Abstract:

The aim was to explore the mechanism of heavy metal-related isoprenoid plant protein 24 (BvHIPP24) in sugar beet under cadmium stress. This study used bioinformatics methods to predict the cis-acting elements, transcription factors, and interacting proteins upstream of the gene, and analyzed their transcriptional expression characteristics under cadmium stress. The results showed that BvHIPP24 contained cis-acting elements related to CGTCA-motif, auxin response, light response, MYB binding, anaerobic induction, and salicylic acid response. Transcription factors such as BVRB_2g046790, BVRB_1g021800 and BVRB_6g128880 might be involved in the transcriptional regulation of BvHIPP24. The interaction proteins of BvHIPP24 mainly included SOD, NaKR1-like, COX1, MT2, NaKR3, REP1, RCA and LHCP, and etc., which might participate in ion transport and intracellular homeostasis by binding with heavy metal ions. Transcriptome sequencing results indicated that the transcriptional expression of BvHIPP24 and its interacting proteins were regulated by cadmium stress. Based on the above findings, BvHIPP24 was mainly expressed through the regulation of upstream transcription factors, and directly or indirectly mediated cadmium ion chelation and detoxification together with interacting proteins. This study provided a reference to further uncover the response mechanisms of sugar beets to cadmium stress.

Key words: sugar beet, heavy metal-associated isoprenylated plant protein (HIPP), cadmium stress, protein interaction, bioinformatics