相关实验视频

Updated: Mar 11, 2026

Single-cell Gene Expression Using Multiplex RT-qPCR to Characterize Heterogeneity of Rare Lymphoid Populations

Single-cell Gene Expression Using Multiplex RT-qPCR to Characterize Heterogeneity of Rare Lymphoid Populations

Published on: January 19, 2017

单细胞转录组学揭示了flg22触发免疫期间FLS2-依赖的低氧信号和ERF13介导的转录

Yaping Zhou¹, Aizhi Qin¹, Mengfan Li¹

¹National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, State Key Laboratory of Crop Stress Adaptation and Improvement, Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, 85 Minglun Street, Kaifeng, Henan, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|March 9, 2026

概括

旗素flg22触发植物免疫力,抑制生长和氧化爆发. 这项研究揭示了细胞类型特定的免疫反应,并确定ERF13是关键的调节器,将免疫力,缺氧和Arabidopsis的生长联系起来.

科学领域:

植物免疫力和应激反应
分子和细胞生物学分子和细胞生物学
遗传学和基因组学遗传学和基因组学

背景情况:

旗素flg22是阿拉比多普西斯的关键免疫触发剂,激活了FLAGELLIN-SENSING 2 (FLS2) 介导的免疫力.
FLS2的激活导致了记录良好的反应,如生长抑制和氧化突发,但细胞类型特定的调节是不太了解的.
植物免疫路径与其他应激反应 (如缺氧) 之间的潜在交叉是新兴的研究领域.

研究的目的:

在单细胞水平上系统地绘制细胞类型特定的,flg22诱导的Arabidopsis免疫反应.
为了研究植物免疫和缺氧信号通路之间的交叉声.
确定关键调节者,如ERF13,这些调节者集成了免疫,缺氧和生长信号.

主要方法:

采用单细胞RNA测序来分析flg22诱导的不同细胞类型的转录变化.
利用遗传方法,包括突变 (fls2, ate1, prt6, zpr2, erf13, sim smr, e2fabc, cpr5) 和过度表达线,来剖析调节通路.
进行了表型分析,以评估生长抑制,反应性氧物种 (ROS) 生产和免疫力 (PTI和ETI).

主要成果:

flg22抑制了生长,并以FLS2依赖的方式提高了ROS,在表皮和中细胞中观察到明显的转录重编程.
一种类似缺氧的反应是由flg22诱导的,而缺氧信号的突变 (ate1,prt6,zpr2) 显示出flg22的敏感性降低.
ERF13被确定为一个中央调节器; erf13突变显示flg22反应受损,但增强了ETI,而ERF13过度表达促进了PTI. flg22诱导的细胞循环改变是由低氧和ERF13.2调节的.

结论:

免疫,缺氧和ROS信号通过ERF13汇聚在一起,以协调植物免疫和生长之间的平衡.
这项研究提供了植物空间免疫组织和应激适应机制的单细胞分辨率.
这些发现突出了各种压力途径的复杂整合,以优化植物防御和生存.

关键词:

欧洲农业基金13 基金在FLS2中使用.缺氧信号传递是什么意思在ScRNA-seqq.转录因子网络的转录因子网络.

更多相关视频

Isolation of Region-specific Microglia from One Adult Mouse Brain Hemisphere for Deep Single-cell RNA Sequencing

Isolation of Region-specific Microglia from One Adult Mouse Brain Hemisphere for Deep Single-cell RNA Sequencing

Published on: December 3, 2019

Droplet Barcoding-Based Single Cell Transcriptomics of Adult Mammalian Tissues

Droplet Barcoding-Based Single Cell Transcriptomics of Adult Mammalian Tissues

Published on: January 10, 2019

相关概念视频

Cells of the Adaptive Immune Response

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...