相关实验视频

Updated: May 31, 2025

Screening and Identification of RNA Silencing Suppressors from Secreted Effectors of Plant Pathogens

Screening and Identification of RNA Silencing Suppressors from Secreted Effectors of Plant Pathogens

Published on: February 3, 2020

一个昆虫效应器模仿其宿主免疫调节器,以破坏植物免疫力

Jianmei Fu¹, Shuai Li¹, Jing Li¹

¹Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Key Laboratory for Food and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Nanjing, 210014, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|January 24, 2025

概括

米植物使用免疫抑制剂OsGF14e来平衡防御. 棕色植物 (BPH) 通过模仿他们的唾液中的蛋白质模仿OsGF14e来抑制这种情况,从而解除植物对感染的免疫力.

科学领域:

植物与昆虫的相互作用
分子植物病理学分子植物病理学
植物免疫力植物免疫力

背景情况:

植物拥有对草食动物的防御机制,但必须对其进行调节,以避免不必要的成本.
控制这种灵活的防御反应的分子机制以及昆虫如何利用它们的分子机制尚未完全理解.

研究的目的:

调查大米14-3-3e (OsGF14e) 在植物免疫力中的作用及其由棕色植物 (BPH) 调节的作用.
为了识别操纵植物防御通路的昆虫效应者.

主要方法:

在BPH感染下米中的OsGF14e表达的分析.
研究OsGF14e和OsEDR1l (一个MAPKKK) 之间的相互作用.
评估OsGF14e和OsEDR1l操纵对植物耐药性和生长的影响.
从昆虫分泌物中识别和描述BPH 14-3-3e蛋白 (Nl14).

主要成果:

BPH感染降低了米中的OsGF14e表达.
OsGF14e与OsEDR1l相互作用,抑制植物防御信号 (雅斯蒙酸,H2O2).
过度表达OsGF14e或OsEDR1l会增加BPH易感性,而淘汰会增强抵抗力,但降低产量.
BPH唾液含有Nl14,它模仿OsGF14e,与OsEDR1l相互作用,并抑制了大米的防御.

结论:

米OsGF14e作为免疫抑制剂,调节植物防御平衡.
BPH使用唾液效应剂 (Nl14),该效应剂在结构和功能上模仿OsGF14e,以解除大米免疫力.
这项研究揭示了一种新的昆虫策略,即分子模仿,以抑制宿主防御,类似于病原体效应因子.

关键词:

14-3-3 蛋白质是什么意思棕色的植物跳棕色的植物跳效应器效应器是一个有效的效应器.模仿模仿模仿的模仿大米免疫力免疫力

更多相关视频

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

Identification of Post-translational Modifications of Plant Protein Complexes

Identification of Post-translational Modifications of Plant Protein Complexes

Published on: February 22, 2014

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.

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...

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.

Introduction to Plant Diversity

Introduction to Plant Diversity

From Water to Land

Predator-Prey Interactions

Predator-Prey Interactions

Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.