相关实验视频

Updated: Jul 18, 2025

Bacterial Leaf Infiltration Assay for Fine Characterization of Plant Defense Responses using the Arabidopsis thaliana-Pseudomonas syringae Pathosystem

Bacterial Leaf Infiltration Assay for Fine Characterization of Plant Defense Responses using the Arabidopsis thaliana-Pseudomonas syringae Pathosystem

Published on: October 1, 2015

病原体诱导的m6A动态影响植物免疫力

Wil Prall¹, Arsheed H Sheikh², Jeremie Bazin³

¹Department of Biology, University of Pennsylvania, Philadelphia, PA 19104,USA.

|August 23, 2023

概括

植物中的N6-甲基氨酸 (m6A) 在病原体攻击期间调节基因表达. 缺乏m6A的植物表现出对感染的增强抵抗力,突出显示m6A.

科学领域:

植物分子生物学植物分子生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.
植物病原体相互作用

背景情况:

N6-甲基氨酸 (m6A) 是真核生物中mRNA的关键转录后调节剂.
虽然m6A在植物发育和疾病中的作用已知,但其在生物压力期间的动态仍然不清楚.
了解植物病原体相互作用期间的m6A调节对于农业的弹性至关重要.

研究的目的:

综合调查m6A在植物对病原体信号的反应中的作用和动态.
确定m6A缺乏对植物对细菌和真菌病原体免疫力的影响.
阐明m6A在协调增长和防御反应方面的监管潜力.

主要方法:

在模拟和活跃病原体应激期间对Arabidopsis thaliana的m6A修饰模式的分析.
在对细菌和真菌感染的反应中评估m6A缺乏的植物表型.
在m6A动态,转录丰度和转录裂变之间的相关性分析.

主要成果:

缺乏m6A的阿拉比多普西斯植物对细菌和真菌病原体的抵抗力增加.
在缺乏m6A的植物中观察到免疫反应的改变.
m6A沉积在病原体信号感知 (例如,鞭毛虫) 之前和之后与防御相关的转录上是特别协调的.

结论:

在植物中,m6A甲基组在应对病原体压力的过程中受到动态调节.
m6A在调节植物防御和免疫力方面发挥着至关重要的作用.
动态m6A调制平衡了正常生长与病原体防御反应.

更多相关视频

Identification of Post-translational Modifications of Plant Protein Complexes

Identification of Post-translational Modifications of Plant Protein Complexes

Published on: February 22, 2014

A Versatile Method for Mounting Arabidopsis Leaves for Intravital Time-lapse Imaging

A Versatile Method for Mounting Arabidopsis Leaves for Intravital Time-lapse Imaging

Published on: February 11, 2019

相关概念视频

Defenses Against Pathogens and Herbivores

Defenses Against Pathogens and Herbivores

Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.

Plant Cell Wall

Plant Cell Wall

The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.

Cell Signaling in Plants

Cell Signaling in Plants

Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...

Plant Hormones

Plant Hormones

Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.

Viral Structure

Viral Structure

Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.