相关实验视频

Updated: Jul 14, 2025

Author Spotlight: Integrating Biochemical Functions of β-Glucanases and Peroxidase Enzymes in Wheat-RWA Interaction

Author Spotlight: Integrating Biochemical Functions of β-Glucanases and Peroxidase Enzymes in Wheat-RWA Interaction

Published on: July 26, 2024

微生物外聚糖体EPS66A诱导核桃 (Juglans regia) 对细菌虫病的耐药性

Hao Wu¹, Yubo Sun², Lan Ma¹

¹College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China.

|October 6, 2023

概括

通过诱导系统性耐药性,EPS66A的应用显著减少了核桃中的细菌病变. 这种化合物增强了植物的防御能力,提高了和黄水平以及关键的酶活动.

科学领域:

植物病理学植物病理学
微生物学微生物学
生物化学生物化学

背景情况:

这是一种细菌病,由Xanthomonas arboricola pv.引起. 格兰地斯 (Xaj),严重影响了核桃产量.
EPS66A 是一种来自Streptomyces sp. 的化合物. 菌株HL-66,表现出广泛的抗菌和植物防御诱导性质.

研究的目的:

为了研究EPS66A对Xaj.感染的核桃植物的影响.
阐明分子机制,包括代谢学和转录学变化,是EPS66A诱导耐药性的基础.

主要方法:

温室实验评估了核桃叶上的EPS66A对Xaj的疗效.
代谢和转录分析以确定植物代谢物和基因表达的变化.
对和黄含量和关键防御相关酶活动 (CAT,SOD,POD,PAL) 的测定.

主要成果:

疫苗注射后24小时使用的EPS66A (200μg/mL) 显著降低了细菌病变的严重程度.
EPS66A治疗增加了和黄的度,并增强了CAT,SOD,POD和PAL活动.
不同表达分析揭示了11种代谢物和14种参与黄类生物合成的基因的显著变化.

结论:

EPS66A的应用有效地诱导了核桃植物对Xaj感染的系统性耐药性.
这项研究强调了黄类生物合成途径在EPS66A介导的植物防御中的作用.
EPS66A显示出作为一种生物控制剂的潜力,用于控制核桃中的细菌病变.

关键词:

诱导的电阻诱导的电阻代谢组中的代谢.植物诱导者植物诱导者转录组转录组就是一个转录组.

更多相关视频

Adherence of Bacteria to Plant Surfaces Measured in the Laboratory

Adherence of Bacteria to Plant Surfaces Measured in the Laboratory

Published on: June 19, 2018

Double-Staining Method to Detect Pectin in Plant-Fungus Interaction

Double-Staining Method to Detect Pectin in Plant-Fungus Interaction

Published on: February 4, 2022

相关概念视频

Endospores and Sporulation

Endospores and Sporulation

Endospores are specialized, dormant cells primarily formed by Gram-positive bacteria, including Bacillus and Clostridium, enabling survival under extreme environmental conditions. Due to their unique composition and formation process, these structures are highly resistant to physical and chemical insults, such as extreme heat, ultraviolet and ionizing radiation, desiccation, and toxic chemicals. Rare instances of endospore-like structures have also been observed in some Gram-negative bacteria,...

Stringent Response in E. coli

Stringent Response in E. coli

Bacterial growth is closely tied to nutrient availability, with cells proliferating exponentially under favorable conditions and entering a stationary phase when resources become scarce. This transition is mediated by a regulatory mechanism known as the stringent response, which allows bacteria to adapt to nutrient deprivation by modulating gene expression and metabolic activity.During nutrient scarcity, intracellular amino acid levels decline. It results in the accumulation of uncharged tRNAs...

Gene Regulation in Microbial Communities: Quorum Sensing

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...